MAXX Vent VX OPERATION MANUAL - FläktGroup

 
MAXX Vent VX OPERATION MANUAL - FläktGroup
MAXX Vent VX
     OPERATION MANUAL
MAXX Vent VX

FläktGroup Product Range

2                          FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

Unit Type Code
MAXX Vent                                                                                                       Accessories
                       Fig. 1-1        Unit Code
 V                X    1     K . U       1      2   K    O     B . J         K   D                                      Z       H     X . X        X                 X     X

                                                                                                           Model size
    Model size                                                                                             1       =   Model size 1
    1       = Model size 1                                                                                 2       =   Model size 2
    2       = Model size 2                                                                                 3       =   Model size 3
    3       = Model size 3                                                                                 4       =   Model size 4
    4       = Model size 4

    Heat exchanger
                                                                                                           Intake modules
    K = No heat exchanger
                                                                                                           20      =   Mixed air module, type 1
                                                                                                           21      =   Mixed air module, type 2
    Air flow function                                                                                      23      =   Fresh air shut-off damper
    U = Recirculating air unit                                                                             25      =   Flexible canvas connections
    M = Mixed air unit                                                                                     26      =   Rectangular duct 150
                                                                                                           27      =   Rectangular duct 1000
                                                                                                           28      =   Duct connecting bend 90°, symmetrical
    Contact protection                                                                                     29      =   Duct connecting bend 90°, assymetrical
    1             =   With contact protection                                                              31      =   Air intake hood, wall
                      (discharge)                                                                          32      =   Weather protection grille
                                                                                                           34      =   Duct through slanted roof
                                                                                                           35      =   Air intake hood, roof
    Thermostat                                                                                             36      =   Bag filter module
    2 = Without thermostat                                                                                 38      =   Space bag filter for 35xx
                                                                                                           39      =   Space bag filter for 36xx
                                                                                                           49      =   Duct through roof with flat roof plinth
    Coil connection (front view)                                                                           51      =   Frame for wall connection
    K = No heat exchanger                                                                                  52      =   Flange (for recirculating air units)

    Heat exchanger connection                                                                              Additional modules and suspensions
    O = Without screw thread connection                                                                    53      =   Compact C Wall
                                                                                                           55      =   Modular (for wall mounting)
                                                                                                           56      =   Ceiling suspension
    Outlet
    B             =   Basic discharge, wall
    V             =   Four sides discharge, ceiling
    K             =   Flange                                                                               Material/Design
    L             =   Double deflection louvre, ceiling/wall, only heating                                 4       =   Galvanized steel/EExd configuration
    P             =   Profile ceiling/wall                                                                 5       =   Stainless steel/EExd configuration
    A             =   Discharge nozzle ceiling
    T             =   Gate nozzle
    Z             =   Basic ceiling two sides
    O             =   Without outlet                                                                       Actuators for louvers and mixed air modules
                                                                                                           1       =   Manual adjustment
 Without outlet                                                                                            8       =   Actuator 230 V - Zone 1
    Motor, speeds
    J = 3x400 V 2-speed - high speed range - II 2G c IIB T3, T4
    L = 3x500 V 2-speed - high speed range - II 2G c IIB T3, T4
                                                                                                           Filter class / electrical equipment
    Only model size 2 and:
    M = 3x400V 1-speed - low air volume - II 2G c IIB+H2 T3, T4                                            0       =   without
    N = 3x400V 1-speed - high air volume - II 2G c IIB+H2 T3, T4                                           5       =   F5
    O = 3x500V 1-speed - low air volume - II 2G c IIB+H2 T3, T4
    P = 3x500V 1-speed - high air volume - II 2G c IIB+H2 T3, T4                     Model 55 Modular suspension with types
                                                                                     0   =   without accessories            7    =    25+23+51
                                                                                     1   =   25+20+51                       8    =    25+36+23+51
    Electric equipment                                                               2   =   25+36+20+51                    A    =    26+36
    K             = Terminal box                                                     4   =   25+21+29+51                    C    =    25+28 (+49...)
    S             = Fan isolator                                                     5   =   25+36+21+29+51                 W    =    without accessories for units with
                                                                                                                                      vertical discharge

    Design                                                                                                 Configuration 56 ceiling suspension
    D             = Industrial configuration RAL 7000                                                      0       =   Mounting kit without threaded rod
    E             = Complete unit in stainless steel industrial configuration                              1       =   Mounting kit with threaded rod 1 m
                                                                                                           2       =   Mounting kit with threaded rod 2 m
                                                                                                           3       =   Mounting kit with threaded rod 3 m

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                                                                               3
MAXX Vent VX

Table of Contents
                                                                                                                        FläktGroup Product Range ......................................................................... 2
                                                                                                                        Unit Type Code ............................................................................................ 3
                                                                                                                        Table of Contents ........................................................................................ 4
                                                                                                                        1 Safety and User Information .................................................................... 5
                                                                                                                             1.1 Scope of the operation manual ....................................................................                5
                                                                                                                             1.2 Used symbols ...............................................................................................      5
                                                                                                                             1.3 Safety-conscious working ............................................................................             6
                                                                                                                             1.4 Proper use ....................................................................................................   7
                                                                                                                             1.5 Safety regulations and codes .......................................................................              7
                                                                                                                             1.6 Modifications and changes ...........................................................................             7
                                                                                                                             1.7 Spare parts ...................................................................................................   7
                                                                                                                             1.8 Personnel selection and qualification ...........................................................                 7
                                                                                                                        2 Technical Description .............................................................................. 8
                                                                                                                             2.1 Basic unit components ................................................................................. 8
                                                                                                                             2.2 Material specification .................................................................................... 8
                                                                                                                             2.3 Unit components .......................................................................................... 9
                                                                                                                             2.4 Unit dimensions ............................................................................................ 9
                                                                                                                             2.5 Unit weight ................................................................................................. 10
                                                                                                                             2.6 Unit operating limits .................................................................................... 10
    prohibited without express prior consent. Violations entail liability for any damages or other liability arising.
    Disclosing, copying, distributing or taking any action in reliance on the contents of this document is strictly

                                                                                                                             2.7 Sound and electric data ............................................................................. 11
                                                                                                                        3 Shipping and Handling .......................................................................... 13
                                                                                                                             3.1 Shipping ..................................................................................................... 13
                                                                                                                             3.2 Shipping and handling of unit ..................................................................... 13
                                                                                                                             3.3 Storage ....................................................................................................... 14
                                                                                                                        4 Assembly ................................................................................................. 15
                                                                                                                             4.1 Load-bearing capacity of the installation site .............................................                    15
                                                                                                                             4.2 Ceiling installation ......................................................................................     15
                                                                                                                             4.3 Wall installation ..........................................................................................    16
                                                                                                                             4.4 Unit installation ...........................................................................................   17
    All rights in relation to patents, utility patents or design patents are reserved.

                                                                                                                        5 Electrical Connection ............................................................................. 19
                                                                                                                             5.1 Wiring diagrams ......................................................................................... 19
                                                                                                                             5.2 Terminal box/fan isolator ............................................................................ 20
                                                                                                                             5.3 Motor terminal diagram for 2-speed three-phase external rotor motor -
                                                                                                                             II 2G c IIB T3, T4 (motor model J, L) ............................................................... 21
                                                                                                                             5.4 Motor terminal diagram for 1-speed three-phase standard motor 3 x 400 V
                                                                                                                             (3 x 500 V) unit designation II 2G c IIB+H2 T3, T4 (motor model M, N, O, P) . 23
                                                                                                                             5.5 Connection of damper actuator .................................................................. 23
                                                                                                                             5.6 Installing control unit and connecting unit .................................................. 24
                                                                                                                        6 Commissioning ...................................................................................... 26
                                                                                                                             6.1 Per-commissioning requirements ...............................................................                  26
                                                                                                                             6.2 Operation ...................................................................................................   26
                                                                                                                             6.3 Operating instructions ................................................................................         27
                                                                                                                             6.4 Deactivation ...............................................................................................    27
                                                                                                                        7 Maintenance ............................................................................................ 28
                                                                                                                             7.1 Maintenance ...............................................................................................     28
                                                                                                                             7.2 Quarterly maintenance ...............................................................................           29
                                                                                                                             7.3 Half-yearly maintenance ............................................................................            30
                                                                                                                             7.4 Troubleshooting .........................................................................................       31
                                                                                                                        8 Disassembly and Disposal .................................................................... 32
    Copyright note

                                                                                                                             8.1 Dismantling ................................................................................................ 32
                                                                                                                             8.2 Recycling .................................................................................................... 32
                                                                                                                        Appendix to the Operation, Installation and Maintenance Manual and
                                                                                                                        Data&Facts Catalogue .............................................................................. 33
                                                                                                                        Declaration of Conformity ..........................................................................34
4                                                                                                                                                                 FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

1       Safety and User Information
                                     This is an original operation manual verified by the manufacturer.
                                     The MultiMAXX Vent VX unit heaters are developed and manufactured in accordance
                                     with the state-of-the-art technological standards and established technical safety
                                     codes and meet the requirements of the EC Directive on Machinery.
                                     MultiMAXX Vent VX unit heaters are highly reliable in operation and meet strict quality
                                     standards. This product range combines future-oriented technology with a high level of
                                     user friendliness and ease of maintenance.
                                     However, unit heaters could pose unavoidable residual risk of injury or risk of equip-
                                     ment or property-damage only accidents. Therefore your personal safety and the
                                     proper operation of the unit depend on the strict observance of the safety instructions.
                                     Failure to follow the safety precautions could result in death, serious injury or equip-
                                     ment or property-damage-only accidents.
                                     Observing the safety instructions in the current operation manual will help avoid the
                                     risks, ensure economical operation of the unit and enjoy full benefits of the product.
                                     The safety aspects covered by this chapter are valid for the entire operation manual.

1.1     Scope of the operation manual
                                     This operation manual covers critical points on the following subjects:
                                     –    Shipping
                                     –    Assembly
                                     –    Installation
                                     –    Electrical connection
                                     –    Commissioning
                                     –    Operation
                                     –    Maintenance, cleaning and disposal

1.2     Used symbols
                                     The following symbols are used to highlight specific text sections in this operation
                                     manual:
                                     – Indicates text paragraphs
                                     • Indicates work steps
                                     9 Indicates work results.

                                         NOTE!
                                         Refer to this section for additional information on energy-efficient operation of the
                                         MultiMAXX Vent VX unit heater.

                                         RECYCLING!
                                         This symbol clarifies proper procedure for recycling of package material and disused
                                         unit components. These components need to be separated according to their
                                         features and material type.

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                                 5
MAXX Vent VX

                       The following designations and symbols are used for specifying safety instructions.

                         RISK OF ACCIDENT DUE TO ELECTRICAL CURRENT!
                         This symbol indicates a risk of accident due to electric shock.

                         PERSONAL INJURY!
                         This section specifies procedures and precautions for preventing personal injury.

                         DANGER DUE OVERHEAD LOADS!
                         This symbol warns about personal injury and damage caused by overhead loads.

                         DANGER – SHARP CUTTING EDGES!
                         This section specifies procedures and precautions for preventing personal injury
                         resulting from cuts on thin metal fins.

                         DANGER OF ROTATING UNIT PARTS!
                         This section specifies procedures and precautions for preventing personal injury
                         resulting from rotating unit components.

                         ENVIRONMENTAL DAMAGE!
                         This symbol warns about damage to the environment and turns attention to all
                         existing national environmental protection regulations.

                         EQUIPMENT DAMAGE!
                         This section specifies procedures and precautions for preventing damage to the
                         MultiMAXX Vent VX unit heater.

1.3   Safety-conscious working
                       Observe the following instructions during installation, settings, service and mainte-
                       nance tasks:
                         ELECTRICAL HAZARD!
                         Disconnect all electric power of the unit and ensure the power cannot be inadvert-
                         ently energised, earth, short-circuit and block off all neighbouring live parts. Non-
                         compliance can lead to death or serious injury.

                         DAMAGE RISK DUE TO STATIC DISCHARGE!
                         While carrying out connections or adjustments on the MultiMAXX Vent VX unit
                         heater make sure that you discharge yourself statically before touching PC boards
                         and electrical components.
                         • Fluctuations and imbalance in supply voltage must not exceed tolerance limits
                            specified on the unit identification plate; otherwise this could cause severe unit
                            malfunction, overload states or failure.

6                                                     FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

1.4     Proper use
                                     The MultiMAXX Vent VX unit heaters are designed for heating, ventilating and filtering
                                     of indoor and outdoor air in industrial buildings within explosion risk area of zone 1. Unit
                                     configuration is labelled as II 2G c IIB T4 and II 2G c IIC T4. Filters, mixed air and air
                                     intake modules, suspension sets, control units and control devices can be supplied as
                                     optional accessories.
                                     Proper use also stipulates the observance of the current operation manual as well as
                                     adherence to all inspection and maintenance intervals specified by FläktGroup.
                  Improper use       Any use other than that described above is considered improper. The manufacturer/
                                     supplier is not liable for any damages arising from improper use. The user alone bears
                                     the risk.

                                       PERSONAL INJURY!
                                       The MultiMAXX Vent VX unit heaters must not be operated:
                                       – in rooms with high dust or moisture content
                                       – in rooms with strong electromagnetic fields
                                       – in rooms with aggressive environment that may attack plastics.
                                       The following accident prevention regulations are valid (VBG1, BGV A2 (previously:
                                       VBG4), VBG7w, VBG9a) and generally recognized codes for machinery and princi-
                                       ples of engineering, in particular DIN VDE 0100, DIN VDE 0105.

1.5     Safety regulations and codes
                                     When carrying out installation, commissioning, maintenance and service of the
                                     MultiMAXX Vent VX unit heaters, all relevant safety regulations and codes as well as
                                     generally established technical practices must be followed.

1.6     Modifications and changes
                                     It is not allowed to modify, add components, or convert the MultiMAXX Vent VX in any
                                     way.
                                     Changes or modifications of the unit heater shall invalidate the CE conformity and ren-
                                     der and all warranty claims as null and void.

1.7     Spare parts
                                     Only original FläktGroup spare parts are allowed, since FläktGroup is not liable if third-
                                     party spare parts are used.

1.8     Personnel selection and qualification

                                       NOTE!
                                       Every person authorised to work with the MultiMAXX Vent VX unit must have read
                                       the entire operation manual and understood it completely. Please read this document
                                       fully before commencing any work, and not while performing a task.
                                       Electrical connection shall only be carried out by qualified licensed staff or other
                                       individuals with proper professional training and experience in the following areas:
                                       – Regulations concerning health and safety in the workplace
                                       – Accident prevention regulations
                                       – Directives and recognized codes of practice
                                       All skilled individuals shall be able to assess, what the work entrusted to them entails,
                                       and shall be able to recognize and avoid all associated dangers.

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                                7
MAXX Vent VX

2         Technical Description

2.1       Basic unit components

                                                                                                                              1b

                                                                                                                              1a

                                                                             3            2
                        5
                                                             4        6
Fig. 2-1:       Components of MultiMAXX Vent VX basic unit

Poz. 1a: Fan with contact protection grille - II 2G c IIB T3, T4                 Poz.:4: Unit casing
Poz. 1b: Fan with contact protection grille - II 2G c IIB+H2 T3, T4              Poz.:5: Discharge - „B“ basic wall
Poz. 2: Flange for accessories on the intake side                                Poz.:6: Terminal box/fan isolator
Poz.:3: Fan with contact protection grille

2.2       Material specification

    Unit part                                     Material
    Fan with contact protection grille            Various materials
    Intake nozzle                                 Galvanized sheet steel or galvanized sheet steel with paint finish
    Fan module                                    Galvanized metal sheet or stainless steel
    Unit casing                                   Galvanized and painted metal sheet or stainless steel
    Outlet                                        Galvanized sheet steel or stainless steel or aluminium fins and galvanized
                                                  sheet steel or aluminium fins and stainless steel
    Terminal box / fan isolator                   Various materials
Tab. 2-1:       Material specification of unit components

8                                                                     FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

2.3     Unit components
                                     MultiMAXX Vent VX unit heater is comprised of a fan. The casing is performed in
                                     galvanized and painted metal sheet or stainless steel. The air discharge opening can
                                     accommodate up to 12 different types of discharge louvres. A wide wing or sickle blade
                                     fan is located in the fan casing on the rear side of the unit heater. The protection grille
                                     prevents possible contact with the fan.
                                     The unit rear side can be supplied with an attachment for mounting air intake accesso-
                                     ries. The components that are made of non-ferrous metal and galvanized fixing parts
                                     are not protected by paint.
                                     M8 nuts are riveted on the sides of the fan section (4 on each side) and are used to
                                     secure the unit with brackets or suspensions on the wall or under the ceiling.

2.4     Unit dimensions

                                                                           Minimum clearance for installation and maintenance

Fig. 2-2:   Unit heater dimensions

                                      Dimensions / unit size              1               2              3              4
                                      A [mm]                             642             738            866            1026
                                      B [mm]                             520             616            744            904
                                      C [mm]                             387             387            387            452
                                      E (for motor J, L) [mm]            120             120            140            140
                                      E (for motor M, N, O, P) [mm]        -             223             -             250
                                      G [mm]                             418             514            642            802
                                      H [mm]                             451             547            675            835
                                      I [mm]                             300             300            400            400
                                      M [mm]                             470             566            694            854
                                     Tab. 2-2:   Unit dimensions

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                                9
MAXX Vent VX

2.5   Unit weight

                                       Unit size                                     Weight [kg]
                                                                   Motor type J, L                 Motor type M, N, O, P
                                         VX 1                            30                                  -
                                         VX 2                             38                                46
                                         VX 3                             53                                –
                                         VX 4                             79                                79

                           Tab. 2-3:   Weight including basic discharge

2.6   Unit operating limits

                              NOTE!
                              All other important data about unit capacity, weights, connections and sound power
                              is specified in the „Data and Facts MultiMAXX Vent VN, VS, VX".

                    Unit   Max. allowed ambient temperature               -20°C to +40°C
                           Operating voltage                              3 x 400 V or 1 x 500 V ~ 50 Hz
                           Protection class                               IP 54
                           Max. relative air humidity                     95% at 25°C
                           Corrosion resistance class                     C3 - EN ISO 12944-2
                           Max. dust concentration in the air             10 mg / m3
                           Power consumption                              refer to unit identification plate

10                                                         FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

2.7       Sound and electric data

                                              Sound power level [dB]                         A-rated sum level                       Max.
                   Speed                                                                                                 Max.
                                            Octave centre frequency [Hz]                                                            current
 Size                                                                                                     Sound         power
                                                                                         Sound power                               consump-
                                                                                                         pressure*   consumption
             Speed       RPM     63   125    250    500    1000   2000     4000   8000      dB(A)                        kW           tion
                                                                                                           dB(A)                        A
 II 2G c IIB - Motor J
               2         1420    54   64      70     65     67     65       61     54        71              55         0.14         0.27
      1
               1         1230    58   69      65     61     62     61       57     48        67              51         0.12         0.20

               2         1390    62   74      76     69     69     69       66     59        75              59         0.29         0.60
      2
               1         1130    64   65      97     64     65     65       61     54        70              54         0.23         0.41

               2           910   79   67      73     68     67     67       64     56        73              57         0.31         0.58
      3
               1           730   62   70      65     62     63     63       59     50        69              52         0.23         0.38

               2           890   78   75      85     74     73     70       67     60        80              63         0.44         0.80
      4
               1           690   67   84      73     73     68     66       62     55        75              59         0.32         0.52

 II 2G c IIB - Motor L
               2         1440    54   64      70     65     67     65       61     54        71              55         0.17         0.38
      1
               1         1290    58   69      65     61     62     61       57     48        67              51         0.12         0.18

               2         1400    62   74      76     69     69     69       66     59        75              59         0.33         0.52
      2
               1         1130    64   65      67     64     65     65       61     54        70              54         0.25         0.35

               2           900   79   67      73     68     67     67       64     56        73              57         0.33         0.49
      3
               1           730   62   70      65     62     63     63       59     50        69              52         0.24         0.32

               2           870   78   75      85     74     73     70       67     60        80              63         0.50         0.71
      4
               1           660   67   84      73     73     68     66       62     55        75              59         0.34         0.44

 II 2G c IIB+H2 - Motor M
      2        1           930   63   59      68     61     61     58       53     43        66              49         0.30         0.67
      4        1           680   72   77      76     71     65     61       56     49        73              56         0.30         0.66
 II 2G c IIB+H2 - Motor O
      2        1           930   63   59      68     61     61     58       53     43        66              49         0.30         0.67
      4        1           680   72   77      76     71     65     61       56     49        73              56         0.30         0.53
 II 2G c IIB+H2 - Motor N
      2        1         1370    81   78      78     70     66     61       56     50        73              57         0.37         0.69
      4        1           925   82   84      84     79     73     69       64     58        81              64         0.55         1.10
 II 2G c IIB+H2 - Motor P
      2        1         1370    81   78      78     70     66     61       56     50        73              57         0.37         0.55

      4        1           925   82   84      84     79     73     69       64     58        81              64         0.55         0.88

Tab. 2-4:    Sound and electric data

*   Sound pressure: standard values at 5 m distance to the unit side, at maximum air flow rate and low reflection room. Industrial
    hall volume 1500 m3, absorption surface 200 m2 Sabin, hemispherical radiation = direction coefficient 2. These values can be
    significantly influenced by the indoor characteristics in a positive or negative way.

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                                            11
MAXX Vent VX

2.8     Air side accessories
                                     The following accessories are available for the MultiMAXX Vent VX unit heater.

 Description                                Order-Nr.      Design
 Mixed air module, type 1*                  ZHx.20#X       Recirculating and outside air offset by 90°
 Mixed air module, type 2*                  ZHx.21#X       Recirculating and outside air opposite at 180°
 Blocking damper outside air*               ZHx.23#X       Galvanized metal sheet or stainless steel
 Flexible canvas connections                ZHx.2520       Frame made of galvanized metal sheet, overall length 150 mm
                                            ZHx.2530       Frame made of stainless steel, overall length 150 mm
                                            ZHx.2540       Frame made of galvanized metal sheet, overall length 300 mm
                                            ZHx.2550       Frame made of stainless steel, overall length 300 mm
 Rectangular duct 150                       ZHx.26#0       Spacer, overall length 150 mm
 Rectangular duct 1000                      ZHx.27#0       Overall length 1000 [mm]
 Duct connecting bend 90°,                  ZHx.28#0       90° symmetrical, tapered peripheral run-around mounting frame
 symmetrical
 Duct connecting bend 90°,                  ZHx.29#0       90° asymmetrical, tapered peripheral run-around mounting
 asymmetrical                                              frame
 Air intake hood, wall                      ZHx.3140       Galvanized metal sheet
 Weather protection grille                  ZHx.3240       Galvanized metal sheet, overall depth 45 mm
 Duct through slanted roof                  ZHx.3440       Galvanized metal sheet
 Air intake hood, roof                      ZHx.3540       Metal sheet in RAL 9002 with bird protection grille, without filter
                                            ZHx.3545       Metal sheet in RAL 9002 with bird protection grille, with G5 filter
 Bag filter for roof air intake hood        ZHx.3845       F5 filter
 Bag filter module                          ZHx.3640       Without filter unit
                                            ZHx.3645       With F5 filter
 Bag filter for module „36“                 ZHx.3945       F5 filter
 Duct through roof with flat roof plinth    ZHx.4940       Galvanized metal sheet
 Frame for wall connection                  ZHx.51#0       As spacer for wall opening
 Flange                                     ZHx.52#0       Only for recirculating air units
 Suspension type compact C                  ZHx.53#0       For recirculating air units
 Modular type suspension                    ZHx.55#0       Only wall mounting
 Ceiling suspension                         ZHx.56#0       Installation without threaded rod
                                            ZHx.56#1       Threaded rod 1 m - M10
                                            ZHx.56#2       Threaded rod 2 m - M10
                                            ZHx.56#3       Threaded rod 3 m - M10
Tab. 2-5: Air side accessories

                                     The symbol „x“ is reserved for size to be specified.
                                     The symbol "#" means 4 = galvanized metal sheet or 5 = stainless steel

                                     * Unit type code for mixed air modules and fresh air blocking damper depending
                                       on the actuator:
                                       ZHx.2xx0 - with field actuator provided by others (shaft diameter = 15.5 mm)
                                       ZHx.2xx1 - manual adjustment
                                       ZHx.2xx8 - with actuator 230 V - Zone 1

12                                                                     FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

3       Shipping and Handling
3.1     Shipping
                                     Manufacturer’s instructions regarding transporting and storing the unit must be
                                     followed (see labels on the packing).
                                       NOTE!
                                       • When the unit heater is delivered and unpacked, check that the delivery is correct
                                         according to the despatch note, and also check for completeness and transit
                                         damage.
                                       • Ship and store unit heaters in original packing!

                                       EQUIPMENT DAMAGE!
                                       • After the shipment ensure that the unit is not damaged.

                                       NOTE!
                                       Claims for damage or missing parts can only be filed with the insurance company
                                       only if shipping damage is confirmed by an authorized worker of the transportation
                                       company.

3.2     Shipping and handling of unit
                          • Attach lifting gear to the designated points of the assembly unit. Chains/slings
                                       should not be knotted and/or be exposed to sharp edges. Special attention must be
                                       given to equal weight distribution.
                                     Only lifting gear with sufficient load carrying capacity is allowed.

                                       DANGER DUE OVERHEAD LOADS!
                                       Do not raise units overhead with personnel below units.

                                       PERSONAL INJURY!
                                       Do not use damaged transport devices.
                                       Use a fork lift truck only if the unit is placed on a pallet.

                                       DANGER – SHARP CUTTING EDGES!
                                       Use personal protective equipment such as safety gloves, footwear and clothes for
                                       unit shipping.

                                     Fig. 3-1:   Transport of unit

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                         13
MAXX Vent VX

3.3   Storage
                The MultiMAXX Vent VX unit heater must be protected from humidity and dirt. Store
                the unit in rooms that meet IE 12 standards and EN 60 721-3-1 requirements.

                 NOTE!
                 Allowed storing conditions:
                 Air temperature: -25 °C to +40 °C
                 Air humidity:      from 50 to 85% relative air humidity, without condensation

14                                           FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

4       Assembly
4.1     Load-bearing capacity of the installation site
                                       NOTE!
                                       The assembly site must be vibration-free and suitable for permanently supporting the
                                       weight of the unit heater. If necessary, the approval of a structural engineer or
                                       architect has to be received.
                                       For mounting the unit, 2 sets with 4 M10 nuts are placed on the fan module
                                       (refer to Fig. 2-2). The fixing material is enclosed with suspensions.

4.2     Ceiling installation
                                     During planning give special attention to: the suspension height, distance
                                     between the units and minimum distance from the ceiling.
                                     Table with suspension height of unit for
                                     ceiling mounting

                                        Type       Air throw            Suspension
                                                      (m)              height max. (m)
                                                                        (outlet C, D)
                                        VX 1          20.6                  14.2
                                        VX 2          26.4                  18.1
                                        VX 3          31.8                  21.4
                                        VX 4          42.1                  29.6

                                                                                                  Suspension height

                                                                                          Fig. 4-1:                   Suspension height for ceiling
                                                                                                                      installation

                                       PERSONAL INJURY!
                                       The minimum allowed mounting height above the floor amounts to 2.7 m.

                                       NOTE!
                                       The maximum height of the unit ceiling installation varies depending on the
                                       discharge temperature, reduced speed and air volume flow due to accessories.

                                     Minimum distance from ceiling A (refer to Fig. 4-1)
                                     It is necessary to keep the minimum distance to allow sufficient air intake and provide
                                     sufficient access for maintenance.

                                         Model size                1                      2                                 3                  4
                                        Clearance A
                                                               300                       300                               400                400
                                           (mm)

                                     The ceiling installation of recirculating air units with „ceiling“ suspension (ZH#.56xx)
                                     refer to Fig. 4-5 and of mixed air units - Fig. 4-6.

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                                                      15
MAXX Vent VX

4.3   Wall installation
                          Give special attention to minimum height, direction of discharged air flow, distance
                          between units and minimum distance from the wall. (refer to Fig. 4-2).

                           PERSONAL INJURY!
                           The minimum allowed mounting height above the floor amounts to 2.7 m.

                           NOTE!
                           Wall mounted unit heaters must not be mounted too high above the floor in order to
                           ensure good mixing of bottom air layers.

                          Direction of discharged air flow
                          Discharge air flow should be directed as to avoid air draughts in the room. The primary
                          air flow must not be directed against walls, beams, cranes, shelves, columns or similar
                          obstacles!
                          Minimum distance to wall A (refer to Fig. 4-2)
                          Provide minimum distance to wall to allow sufficient air circulation and ensure ade-
                          quate access for maintenance.

                             Model size              1                 2                       3               4

                          Clearance A (mm)          300               300                     400             400

                          Air throw
                          Air throws are specified in the following table:

                             Type     Max. air throw
                                           (m)                               Max. air throw
                             VX 1          20.6
                             VX 2            26.4
                             VX 3            31.8
                             VX 4            42.1

                                                          Fig. 4-2:   Air throws with wall mounting

                          For wall mounting of a recirculating air unit with „Modular“ suspension (ZH#.55xx) refer
                          to Fig. 4-3, with "Compact C" suspension (ZH#.53xx) refer to Fig. 4-4 and wall mount-
                          ing of mixed air units with "Modular" suspension refer to Fig. 4-7.

16                                                        FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

4.4     Unit installation
                                       NOTE!
                                       Units must be installed in a safe, reliable and visually adequate manner. For these
                                       reasons, it is recommended to use manufacturer’s suspensions.

                                       EQUIPMENT DAMAGE!
                                       The unit must be installed in a stain-free, vibration-free and twist-free way.

                                       NOTE!
                                       Fixation points: unit heater must be secured at minimum 4 fixation points. Use the
                                       screws of the transport safety device.

Fig. 4-3:    Wall mounting of a recirculating air unit with „Modu- Fig. 4-5:   Ceiling mounting of a recirculating air unit with „ceil-
             lar“ suspension (ZH#.55xx)                                        ing“ suspension (ZHx.57xx)

Fig. 4-4:    Wall mounting of a recirculating air unit with
             Compact C suspension (ZH#.53 xx)

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                                     17
MAXX Vent VX

      ZH#.35 xx

      ZH#.49 xx

      ZH#.49 xx

      ZH#.20 xx

      ZH#.36 xx

      ZH#.25 xx, or ZH#.26 xx

      ZH#.56 xx

     Fig. 4-6:    Ceiling mounting of a mixed air unit with „ceiling“ suspension (ZH#.56xx)

      ZH#.31 xx

      ZH#.51 xx

      ZH#.29 xx

      ZH#.55x5

      ZH#.21 xx

      ZH#.36 xx

      ZH#.25 xx

     Fig. 4-7:    Wall mounting of a mixed air unit with „Modular“ suspension (ZH#.55xx)

     With mixed air units the flange for mounting accessories is fitted by the manufacturer;
     with recirculating air units the flange (ZH#.5200) must be ordered as an accessory and
     fitted by others on site.
     Either flexible canvas connection (ZH#.25xx) or rectangular duct 150 (ZH#.26xx) must
     be fitted as the first add-on module of a recirculating air unit. Refer to mounting exam-
     ples in Fig. 4-6 and Fig. 4-7.

18                                     FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

5       Electrical Connection
                                       HAZARDOUS VOLTAGE!
                                       The electrical connection of the MultiMAXX Vent VX unit heater must only be
                                       performed by qualified licensed staff in observance of the given operation manual
                                       and the following regulations:
                                       – VDE regulations, including safety regulations
                                       – Accident prevention regulations
                                       – Installation instructions.

5.1     Wiring diagrams
                                     The electrical connection of MultiMAXX Vent VX unit heaters must be performed in
                                     accordance with the valid wiring diagrams. The wiring diagram is located on the inside
                                     cover of the unit connection box or is enclosed separately.

                                       HAZARDOUS VOLTAGE!
                                       The wiring diagrams do not contain any protective measures. During connection cur-
                                       rently valid standards and regulations must be observed and checked with the local
                                       power company.

5.1.1 Cable connections
                                     The cable connections must be performed in compliance with the local regulations and
                                     code of practice.
                                     The selection of cable type and cable cross section must be performed by a qualified
                                     electrical engineer. Addition of components by others and field line runs must be
                                     designed for high temperatures and fitted with spacers.
                                     Electrically screened line shall be used for the PTC thermistor, whereas earth screen
                                     shall be connected on one side to the protective conductor terminal (PE) in the control
                                     unit. The decision to attach earth screen at both ends must only be made on site (e.g.
                                     in case of severe interference), whereby the relevant applicable local regulations and
                                     codes must be observed.
                                     After successful cable installation all cable entry points must be sealed in a
                                     splash-proof manner.

5.1.2 Motor protection using PTC thermistor
                                     The PTC thermistors are embedded in motor windings and in combination with the
                                     motor full protection of the control unit (986810, 986920 or 986960) enable interlocking
                                     disconnection of the fan motor, if the maximum allowed winding temperature is
                                     exceeded. If the unit heater is not operated together with the control unit, the motor
                                     must be protected by a tripping unit of class Ex II (2) G or a tripping unit for Exe fan
                                     motors of type: 912MVS.EX (producer: FläktGroup) or for Exd fan motor type
                                     3RN 1011-1CK00 (producer: Siemens).

5.1.3 Operation of basic unit
                                     For operating the unit heaters - switch units for recirculating and mixed air units can be
                                     used (refer to Fig. on page 24-25).
                                     Operation with frequency converters or switch units with voltage reduction
                                     (e.g. transformer) is not possible.

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                             19
MAXX Vent VX

5.2   Terminal box/fan isolator
                               The MultiMAXX Vent VX unit heater is supplied with a plastic terminal box or fan
                               isolator.

                                                                                                             Earth terminal

                               Fig. 5-1:   Terminal box and earth terminal

5.2.1 Wiring diagrams
                               The plastic terminal box / fan isolator contains a terminal strip.
                               Electrical connection of the unit heater and control unit must be carried out according
                               to the current EN 60079-14 standard and terminal diagrams with
                               consideration of all necessary protective measures.

5.2.2 Potential equalisation
                               Electrical conductive connection must be assured between all units and accessory
                               parts. Thermistors and overload protection must be activated.
                               Besides, the unit heater must be integrated in potential equalisation using the desig-
                               nated connection point. The earthing must be continuously ensured. The resistance
                               must not exceed max. 0.1 Ohm (refer to Fig. 5-1).
                               The potential equalisation between accessory parts must be performed using enclosed
                               screws, nuts and tooth lock washers.

20                                                             FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

5.3     Motor terminal diagram for 2-speed three-phase external rotor motor - II 2G c IIB T3,
        T4 (motor model J, L)
                                     –   With PTC thermistor
                                     –   Switch for cumulative compound motor
                                     –   Winding diagrams Δ/Y
                                     –   Without voltage switch-over!
                                     –   For operating voltage refer to the unit identification plate

5.3.1 2-speed operation at operating voltage 3 x 400 V (3 x 500 V) - unit with terminal box
                             – with speed switch unit 986920.3 or 986960.3 for 3 x 400 V (motor J), 986820T.51
                               or 986860T.51 for 3 x 500 V
                             – Connection cable: 6 + PE = 7 wires
                             – Electrically screened line: 2 K connecting wires

                                                                                                Control unit
                                                                                                for 400 V: type 986820.3 or 986960.3
                                                                                                for 500 V: type 986820T.51 or
                                                                                                986860T.51)

                                     Fig. 5-2:   Terminal drawing for 2-speed operation using two-speed switch

5.3.2 1-speed operation at operating voltage 3 x 400 V (3 x 500 V) - unit with terminal box
                             – with speed switch unit 986910.3 or 986811.3 for 3 x 400 V (motor J), 986810T.51
                               or 986811T.51 for 3 x 500 V (motor L)
                             – Connection cable: 3 + PE = 4 wires
                             – Electrically screened line: 2 K connecting wires

                                                                    1-speed operation with high RPM (Δ)

                                                                   1-speed operation with low RPM (Y)

                                     Fig. 5-3:   Terminal drawing for 1-speed operation

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                                       21
MAXX Vent VX

5.3.3 2-speed operation at operating voltage 3 x 400 V (3 x 500 V) - unit with fan isolator
                              – with speed switch unit 986920.3 or 986960.3 for 3 x 400 V (motor J), 986820T.51
                                or 986860T.51 for 3 x 500 V (motor L)
                              – Connection cable: 6 + PE = 7 wires
                              – Electrically screened line: 2 PTC thermistor connecting wires
                              – For other operating voltage optional control units are available on request.

                                                                               Thermistor

                                                                                            Fan isolator

                                                                                            Control unit
                                                                                            for 400 V: 986920.3 or 986960.3
                                                                                            for 500 V: 986820T.51 or 986860T.51

                              Fig. 5-4:      Connecting 2-speed fan isolator

5.3.4 1-speed operation at operating voltage 3 x 400 V (3 x 500 V) - unit with fan isolator
                              – with speed switch unit 986910.3 or 986811.3 for 3 x 400 V (motor J), 986810T.51
                                or 986811T.51 for 3 x 500 V (motor L)
                              – Connection cable: 3 + PE = 4 wires
                              – Electrically screened line: 2 K connecting wires

                                  1-speed operation with high RPM (Δ)

                                   Fan isolator

                                                                                              Fan isolator motor wires (speeds)
                                                                                              shall be connected at the fan isola-
                                                                                              tor.
                                                                                              Jumpers shall be placed by others
                                                                                              on site
                                  1-speed operation at low RPM (Y)

                                   Fan isolator

                              Fig. 5-5:      Connecting 1-speed fan isolator

22                                                               FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

5.4     Motor terminal diagram for 1-speed three-phase standard motor 3 x 400 V (3 x 500 V)
        unit designation II 2G c IIB+H2 T3, T4 (motor model M, N, O, P)
                                     – with speed switch unit 986810 or 986811 for 3 x 400V (motor M, N), 986810T.51 or
                                       986811T.51 for 3 x 500V (motor O, P)
                                     – Connection cable: 3 + PE = 4 wires
                                     – Electrically screened line: 2 PTC thermistor connecting wires

                                                                                                 Terminal box

                                                                                 Motor

                                                                                                 Fan isolator

                                     Fig. 5-6:   Connecting 1-speed three-phase standard motor

5.5     Connection of damper actuator
                                     For connection of EEx damper actuator give special attention to the following:
                                     During manual deactivation of the unit heater - external remote switch or regulation
                                     system in frost risk case must ensure that the fresh air damper is closed by the
                                     actuator.
                                     For connection follow instructions in a separate operation manual provided by Schis-
                                     chek company.
                                     The damper actuator is certified to operate in explosion-proof areas.
                                     (PTB 99 ATEX 1103 - EEx II 2 G EEx d IIc T6 and EEx II 2 D IP65 T 95°C).

                                                              Actuator
                                                              Mixed air module

                                                    Terminal box
                                                    Mixed air module

                                     Fig. 5-7:   Connecting actuator and mixed air module

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                            23
MAXX Vent VX

5.6     Installing control unit and connecting unit
                                   The control unit (accessory item) must be installed in the designated location (outside Zone
                                   1). The connection type must be determined between single or group unit connection. As
                                   a group - adjacent units shall be connected to one heating line. An intermediate termi-
                                   nal box shall be used if a unit group is connected. A maximum of 2 unit heaters (with
                                   consideration to motor full protection device) can be included in a unit group.

5.6.1 Installation example
                                   Unit group comprising MultiMAXX Vent VX with recirculating air function and control
                                   unit.

                      Room thermostat type
                      902014

                      Zone 1

                      no zone 1
                                                               Intermediate terminal box
                                                               type 981860

                         Power supply                                  (1) Motor cable: 7 wires (motor J, L)
                          400 V/50 Hz                                                      4 wires (motor M, N, O, P)
                         (500 V/50 Hz)                                 (2) PTC thermistor: 2 wires (electrically screened line)
                                                                       (3) Room thermostat: 3 wires
                                                                       (must be installed in the thermal range of the unit heater!)

                                            Control unit
                                     Type 986810.3 or 986920.3
                                  (Type 986810T.51 or 986920T.51)

Fig. 5-8:   Unit group comprising MultiMAXX Vent VX with recirculating air function and control unit

24                                                                  FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

                                     Unit group comprising MultiMAXX Vent VX with mixed air function and control unit.

      Room thermostat
      Type 902014

            Zone 1

            no zone 1
                                                                      Intermediate terminal box
                                                                      type 981865

                                                                          (1)   Motor cable: 7 wires (motor J, L)
                                                                                             4 wires (motor M, N, O, P)
                                                                          (2) PTC thermistor: 2 wires (electrically screened line)
                                                                          (3) Actuator for mixed air damper: 5 wires
                            Power supply                                  (4) Room thermostat: 3 wires (must be installed in the thermal
                             400 V/50 Hz                                  range of the unit heater!)
                            (500 V/50 Hz)

                                                  Control unit
                                           Type 986811.3 or 986960.3
                                        (Type 986811T.51 or 986960T.51)

Fig. 5-9:    Unit group comprising MultiMAXX Vent VX with mixed air function and control unit

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                                           25
MAXX Vent VX

6       Commissioning
                                   RISK OF ACCIDENT DUE TO ELECTRICAL CURRENT!
                                   Isolate all power supply connections of the unit heater and ensure the power cannot
                                   be inadvertently energised.

                                   DANGER OF ROTATING UNIT PARTS!
                                   Wait to allow the fan rotational momentum to cease!

                                   NOTE!
                                   Before commissioning ensure that the unit heater is clean e.g.:
                                   – Discharge louver
                                   – Filter

6.1     Per-commissioning requirements
                               – All mechanical and electrical systems of the unit heater have been installed.
                               – The MultiMAXX Vent VX unit is de-energised and isolated.

6.1.1 Initial commissioning:
                               • Main isolator must be in "Off" position and the unit must be secured against
                                    inadvertent energizing!
                               • Checking the unit:
                                    – Inspect the casing for damage.
                                    – Check painted surfaces for signs of damage.
                                    – Rotate the fan manually to check it turns in the proper direction; ensure even slit
                                        width of the fan to confirm a stress-free installation. The slit width must amount
                                        to at least 1 % of the impeller diameter.
                                    – Ensure free air passage on the air-side
                                    – Check faulty electrical connections
                                    – Check proper utilization of protective measures (thermostat)
                                    – Connection of potential equalisation
                                    – Electrical connection must be assured between unit and accessory modules
                               •    Switch on the unit: (if necessary, set jumper for the remote switch contact, increase
                                    temperature setpoint to activate the unit)
                               •    Check the rotating direction; the rotating direction is correct, if circulated air is
                                    discharged from the outlet.
                               •    Changing phases enables to swap rotating direction (e.g. L1 with L2)
                               •    Measure current consumption and compare with the identification type plate.
                               •    Adjust the discharge louver to the required air throw direction. The discharge
                                    direction shall be set in such way as to prevent air draughts in the occupied zone.

6.2     Operation
                               Activation and deactivation of the unit is performed using the speed selection switch or
                               room thermostat or/and external remote switch.

6.2.1   Regulation of mixed air module
                               Regulation of the actuator of the mixed air module is performed by a control switch in
                               the control unit (e.g. 986811.3).

26                                                              FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

6.2.2    Secondary air louvre
                                     The secondary air louvre of the unit heater directs conditioned air in the controlled
                                     space. The regulation of the secondary air louvre sets the optimal discharge angle for
                                     air flow (fan speed) under current temperature conditions. The occupation zone can be
                                     air conditioned in a draught-free way, at the same time formation of indoor temperature
                                     layers can be to a large extent prevented.
                                     – In manual mode secondary air louvres are adjusted manually (refer to Fig. 6-1)

      Wall unit                                                    Ceiling unit

Obr. 6-1:   Manual operation

6.3     Operating instructions
                                     Ensure free air passage, air flow must be discharged without obstacles.
                                     The discharge direction must be set in such way as to prevent air draughts in the
                                     occupied zone.
                                     An optional fan switch fitted on the unit is only used to deactivate the fan.
                                     This switch is not used as the main isolator or emergency switch.

6.4     Deactivation
                                     Use the control unit to set the speed selection switch (e.g. 983920.3) to "0"
                                     position or use the fan isolator.

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                          27
MAXX Vent VX

7     Maintenance

7.1   Maintenance
                              NOTE!
                              We recommend to conclude a maintenance contract with a service company.

                              ELECTRICAL HAZARD!
                              Switch off all power supply connections of the unit heater and ensure the power can-
                              not be inadvertently energised.

                              DANGER OF ROTATING UNIT PARTS!
                              Wait to allow the fan rotational momentum to cease!

                              NOTE!
                              For unit heater maintenance inspections at regular intervals must be observed and
                              possible malfunctions repaired. Maintenance shall only be performed if the unit is
                              fully isolated by authorized and qualified staff.

Overview of regular maintenance intervals
                            The following maintenance intervals shall be observed within the specified periods.

                                                                                                                Maintenance
                                                                                                                 intervals
                             Components
                                                                                                                    Twice a year
                                                                                                    Quarterly

                                                                                                                                   Annually
                             Checking air filter* (dirt, damage, odour)                              x
                             Checking air intake openings / grilles*                                                  x
                             Checking air discharge openings / grilles*                                               x
                             Checking fans or fan sections*                                                           x
                             Checking electrical connections                                                                        x
                             Checking earthing                                                                                      x
                             * If necessary, clean and remove foreign objects or replace
                            Tab. 7-1:   Regular maintenance

28                                                           FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

7.2     Quarterly maintenance

7.2.1 Filter replacement
                                     In case of reduced air flow of the unit heater its filter should be inspected and,
                                     if necessary, replaced or cleaned.
                                     Use the type code on page 3 for ordering a spare filter.

                                                                           Pos. 1: Roof intake hood
                                                                           Pos. 2: F5 bag filter

                                                                   2       • Remove lateral screws and open the top
                                                                               section of the air intake hood.
                                                                           •   Remove and replace the bag filter
                                                                           •   Close the hood and secure the screws

                                                                   1

Abb. 7-1:   Roof intake hood: ZHx.35xx

                                                                               Pos. 1: Mat filter module
                            2                                                  Pos. 2: F5 filter insert

                                                                               • Loosen filter set by turning quick-action
                                                                                   clamps by 90°.
                           1
                                                                               •   Pull out the filter assembly.
                                                                               •   Replace the filter insert.
                                                                               •   Close the filter assembly
                                                                               •   Lock by turning quick-action clamps by 90°

Abb. 7-2:   Bag filter module: ZHx.36xx

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                             29
MAXX Vent VX

7.3   Half-yearly maintenance

7.3.1 Checking fan
                        Inspection must also comprise fan testing and checking. Make sure that the impeller is
                        not obstructed and rotating freely while maintaining equal distance (the slit width must
                        be at least 1% of the impeller diameter) to the inlet nozzle.

30                                                     FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

7.4     Troubleshooting
Symptom                                       Possible cause                                 Remedy
Fan is not running, fan switch is activated, Unit not switched on                            Switch on unit
signal LEDs do not light up
                                             No electrical voltage                           Check fuse/power supply
                                                                                             (technical personnel only)
                                              Electric lines not connected                   Connect electrical lines
                                                                                             (technical personnel only)
                                              Defective unit fuse                            Replace fuse
                                                                                             (technical personnel only)
                                              Controller deactivates fan after room tem- Setpoint value changed
                                              perature is reached
Fan is not running, fan switch is activated, Motor protection tripped                        Check motor temperature, let the motor
signal LED STOP (fault) lights up                                                            cool down and activate again (if the prob-
                                                                                             lem remains, investigate reason for over-
                                                                                             heating)
Fan running but air volume too low            Air flow blocked or restricted,                Ensure free air passage
                                              filter is dirty.
                                              Wrong rotation direction of fan                Change rotating direction of fan
Unit too noisy                                Air intake or discharge areas blocked          Clear discharge/air intake of obstructions
                                                                                             or bends
                                              Noisy fan bearings                             Replace faulty fan
                                                                                             (technical personnel only)
                                              Filter is dirty                                Clean/replace filter
Controller switches on continuously           Controller secured in the wrong location       Position controller in appropriate location
                                              (e.g. near an open door, window or adja-       where room temperature can be meas-
                                              cent to air discharge grille of MultiMAXX      ured representatively
                                              Vent VX)                                       (qualified technical personnel only)

* Repeated activation after elimination of fault:
* First set the speed selection switch to "0" position, then change to the required speed.

                                     If the malfunction cannot be eliminated by the maintenance personnel, please consult
                                     our authorized service department.

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                                       31
MAXX Vent VX

8     Disassembly and Disposal

                     ENVIRONMENTAL DAMAGE!
                     Only qualified licensed staff must dismantle and dispose of the MultiMAXX Vent VX.

8.1   Dismantling
                    To dismantle the MultiMAXX Vent VX unit proceed as follows:
                     HAZARDOUS VOLTAGE!
                     When carrying out decommissioning and dismantling work on the unit heater, dis-
                     connect all power supply connections, ensure the power cannot be inadvertently
                     energised and verify that electrical lines have been disconnected. When carrying out
                     decommissioning and dismantling jobs on the unit, isolate all power supply connec-
                     tions and ensure that power cannot be inadvertently energised. Earth and isolate all
                     adjacent live parts. Non-compliance can lead to death or serious injury.

                     PERSONAL INJURY!
                     Secure the unit heater against slipping. Relevant shipping instructions for
                     FläktGroup units must be followed.

8.2   Recycling

                     RECYCLING!
                     An authorized appointed contractor specializing in waste processing must dispose
                     of the MultiMAXX Vent VX unit or its individual components. This appointed contrac-
                     tor shall ensure that:
                     • the components are separated according to material types
                     • the used operating materials are sorted and separated according to their
                         respective properties.

                     ENVIRONMENTAL DAMAGE!
                     Dispose of all operating materials and components in an environmentally-friendly
                     manner and in compliance with local laws and regulations.

32                                                FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

Appendix to the Operation, Installation and Maintenance Manual and Data&Facts Catalogue
By performing regular checks (three times a year at a maximum are required) dust, dirt and foreign matter must be
cleaned and removed. Besides, the protective features must be checked as well. Inspection intervals depend on the
operating conditions of the fan. The implementation of the inspection steps must be stated and confirmed in the current
installation manual.

MultiMAXX Vent VX unit heater ....................................................................................................................................
(specify type for 1st inspection)

Accessories ZH                    ...................................................................................................................................
(specify type for 1st inspection)

                                             ....................................................................................................................................

                                             ....................................................................................................................................

Inspection 1 (prior to commissioning) performed by ...................................................... (date, stamp, signature)

Inspection 2 performed by.............................................................................................. (date, stamp, signature)

Inspection 3 performed by.............................................................................................. (date, stamp, signature)

Inspection 4 performed by.............................................................................................. (date, stamp, signature)

Inspection 5 performed by.............................................................................................. (date, stamp, signature)

Inspection 6 performed by.............................................................................................. (date, stamp, signature)

Inspection 7 performed by.............................................................................................. (date, stamp, signature)

Inspection 8 performed by.............................................................................................. (date, stamp, signature)

Inspection 9 performed by.............................................................................................. (date, stamp, signature)

Inspection 10 performed by............................................................................................ (date, stamp, signature)

FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications                                                                                                                    33
MAXX Vent VX

34   FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications
MAXX Vent VX

                                Year of Manufacture:
FläktGroup DC-2009-0132-GB 2018-05/R4 • Subject to modifications   35
FG_DC-2009-0132-GB_MAXX-Vent-VX_OM_R4-05-2018 © Copyright 2018 FläktGroup
                                                                                   WWW.FLAKTGROUP.COM   MAXX VENT VX

FläktGroup is the European market leader for smart and energy efficient Indoor Air and
Critical Air solutions to support every application area. We offer our customers innovative
technologies, high quality and outstanding performance supported by more than a
century of accumulated industry experience. The widest product range in the market, and
strong market presence in 65 countries worldwide, guarantee that we are always by your
side, ready to deliver Excellence in Solutions.

PRODUCT FUNCTIONS BY FLÄKTGROUP
Air Treatment | Air Movement | Air Diffusion | Air Distribution | Air Filtration
Air Management | Air Conditioning & Heating | Controls | Service

» Learn more on www.flaktgroup.com
  or contact one of our office
You can also read
NEXT SLIDES ... Cancel