Smoke Master JMHT HATCH - Installation, operation and maintenance 10/2010
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Smoke Master JMHT HATCH
Installation, operation and maintenance
10/2010
INSTALLATION, OPERATION AND MAINTENANCE Contents Table of contents.....................................................................................................................................................2 Safety aspects..........................................................................................................................................................3 System overview....................................................................................................................................................3 Installation...............................................................................................................................................................4 Electrical connections............................................................................................................................................5 Testing and inspections.........................................................................................................................................6 Maintenance of the fan .........................................................................................................................................7 Fläkt Woods FIFLO EN 2010.10 2 All rights reserved.
Smoke Master JMHT HATCH INSTALLATION, OPERATION AND MAINTENANCE Safety aspects • Electrical installations should only be carried out by a suitably qualified electrician. • The hatch should start opening 30s before the fan starts running. This should be enabled by a time delay in the control system. • Before any maintenance work is carried out on the fan unit, the fan and the hatch opening motors should be de-energized using the safety switch. • If the fan unit is installed in a place where it may cause danger, access to the unit should be prevented. • The installer and the operator are jointly responsible for ensuring that the installation complies with all lo- cal rules and regulations. • To allow service and maintenance work, there must be enough space around the device for the use of stairs, ladders and walkways that meet the requirements for roof safety products. • Fläkt Woods does not accept liability for any other components connected to the system, such as smoke detectors, etc. System overview JMHT Hatch from the SMOKE MASTER range of fire safety products is a roof-mounted unit for mechani- cal smoke exhaust. It combines a smoke hatch and a smoke extract fan and is delivered ready for roof mounting, provided with electrical components and wiring as ordered. JMHT Hatch is designed for smoke exhaust only and has a temperature designation of 400°C /2 hours. The product is not suitable for continu- ous air extraction. The smoke hatch is opened by two linear motors (230V/single phase or 24V DC) that are designed to ex- ceed the sum of hatch, snow and wind loads. The recommended starting method for the fan is direct-on- line starting 30s after the start of the linear motors. This is to ensure that the hatch is open enough to allow smoke exhaust at the specified flow rate when the fan reaches full speed. Fläkt Woods FIFLO EN 2010.10 3 All rights reserved.
INSTALLATION, OPERATION AND MAINTENANCE
Installation
Roof mounting
Method 1 Method 2
1. JMHT HATCH smoke hatch
2. JMHT fan
3. Safety mesh or jointing collar (as ordered)
4. Motorised opener (2 x linear motor 230V AC or 24V DC)
5. Flashing (optional)
6. Compliant waterproof protection of the penetration
7. Attachment to the roof structure with angle brackets (method 1) or directly by the unit’s flanged base (method 2)
8. Roof
9. Penetration, at least the size of the fan in diameter
Angle brackets should be fixed to the unit’s base with a minimum of four 5x40 screws and to the roof structure
with a minimum of four screws as follows:
- 4 to 6 HILTI HPS-1 screws 6/5x30 for concrete
- 4 to 6 wood screws 6x50 for wood
- 4 to 6 self-drilling screws 6.3x25 for steel sheet
Fläkt Woods FIFLO EN 2010.10 4 All rights reserved.Smoke Master JMHT HATCH INSTALLATION, OPERATION AND MAINTENANCE
Electrical connections
The product is delivered with the wiring for the linear motors on the outside. This is to make it possible to
open the hatch with any suitable power supply during installation. Note! Check the label on the product for
the supply voltage required by the linear motors.
Wiring diagram
This cable is factory-installed.
This cable shall be installed on site.
LINEAR MOTOR LINEAR MOTOR
SMOKE EXTRACT FAN
LIMIT SWITCH
optional
SAFETY SWITCH
3x400 VAC, 50 Hz 1x230 VAC, 50 Hz
or 24 VDC
Technical data
Fan motor Linear motors
Code Power Voltage Current Speed Code Power Voltage Current Speed Force
kW A SMHA-aa-bbb-c-1-e-f 2x28VA 1x230VAC, - 10 m/s 2x1000N
SMHA-05-017 1,7 3x400VAC, 50Hz 3,7 2910 50Hz
SMHA-05-048 4,8 3x400VAC, 50Hz 9,1 2910 SMHA-aa-bbb-c-2-e-f - 24VDC 2x1,2A 8-17 m/s 2x1000N
SMHA-08-036 3,6 3x400VAC, 50Hz 7,0 1440
SMHA-08-048 4,8 3x400VAC, 50Hz 9,2 1440
SMHA-08-066 6,6 3x400VAC, 50Hz 12,6 1440
SMHA-08-090 9,0 3x400VAC, 50Hz 17,0 1440
Limit switch (optional)
SMHA-10-066 6,6 3x400VAC, 50Hz 12,6 1440
SMHA-10-090 9,0 3x400VAC, 50Hz 17,0 1440
Volt-free contact NO/NC 230VAC 16A
SMHA-10-110 11,0 3x400VAC, 50Hz 21,0 1440
SMHA-10-180 18,0 3x400VAC, 50Hz 35,0 1440
Fläkt Woods FIFLO EN 2010.10 5 All rights reserved.INSTALLATION, OPERATION AND MAINTENANCE
Testing and inspections
Initial inspection
• Make sure the linear motors can travel without Maintenance of the fan
trouble. • Before fan maintenance, the fan and the motors
• Check that the starting delay for the fan is about must be de-energized and secured against acci-
30s. dental start up.
• Make sure the fan turns in the right direction • *Fan maintenance is detailed in the attached in-
(blowing out). structions for HT series Aerofoil fans.
Half-yearly inspections
• Carry out the measures described under Initial
inspection.
• Check that status indicators, such as indicator
lights, are working properly.
• Check that labels, signs and trigger diagrams are
visible.
• Check by eye that all hatches and devices seem
to be in working order.
• Check the measures to be carried out on the
fan.*
Annual inspections
• Carry out the measures described under Initial
inspection.
• Check that status indicators, such as indicator
lights, are working properly.
• Check that labels, signs and trigger diagrams are
visible.
• Check the appropriateness of the service book
and other documentation, and make a record of
the inspection.
• Check that the hatches of the fan unit open with-
out trouble. Remove any obstructions. Check for
wear and corrosion, and repair any such dam-
age.
• On the hatch opening motors, the following
should be checked:
- Security of motor mountings
- Protection against moisture
- Operation (testing) and electrical connections
of the motors
• Also check that the hinges of the hatches are
properly secured, the device is clean and the
seals are tight. Replace seals as necessary.
Fläkt Woods FIFLO EN 2010.10 6 All rights reserved.Smoke Master JMHT HATCH INSTALLATION, OPERATION AND MAINTENANCE
Maintenance of the fan
1 2 3
3.1
3.2
4
1. Motorised opener (linear motor, 2 pcs)
2. Safety mesh
3. JMHT fan
3.1 Impeller
3.2 Motor
4. Safety mesh or jointing collar
Removing the fan from JMHT Hatch for maintenance.
Fan maintenance is to be carried out in accordance with specific instructions for the operation and maintenance
of the JMHT fan.
Maintenance:
SMHA-05, SMHA-08, SMHA-10-066...SMHA-10-110
On-roof maintenance through the hatch:
1. Ensure that the fan (2) and the linear motors (1) are de-energized (and secured if possible).
2. Remove the safety mesh (3).
3. Release the impeller from the shaft by undoing the retaining bolt at the end of the shaft.
4. Remove the impeller from the shaft. Take care not to drop the key.
5. Lift up the rotor of the motor, and perform bearing maintenance.
SMHA-10-180
In this type of motor, two bolts secure the rotor to the end plate at the free end of the motor. To be able to carry
out the maintenance as described above, the bolts should be undone from below the motor, which is usually dif-
ficult. It is therefore best to unbolt and lift out the entire fan for maintenance.
Fläkt Woods FIFLO EN 2010.10 7 All rights reserved.We Bring Air to Life
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Controls and drives
Smoke Master JMHT HATCH / EN / FIFLO 10.2010 / All rights reserved. / Brandstairs #15366
and passive convection beams Variable speed drives and control
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Kalevantie 39,
FI-20520 Turku, FINLAND
Tel. +358 20 442 3000
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