Daikin Altherma Selection Report
←
→
Page content transcription
If your browser does not render page correctly, please read the page content below
Daikin Altherma Selection Report
Daikin Altherma Simulator V3.1.1 - database Central 6.8.8
Project name
Reference
Client name
Only the data published in the data book are correct. This program uses close approximations of these data.
1. High temp - Outdoor/indoor ERSQ014AAV1
1.1. Material List
Model
Outdoor ERSQ014AAV1
Bottom plate heater Yes
Indoor EKHBRD014AAV1
Domestic hot water tank EKHTS200A
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 11.2. System Diagram
D omestic hot w ater tank
E KH TS 200A
200 l
+
Indoor
E KH BRD 014A A V 1
D omestic hot w ater usage
H eating only
O utdoor
E RS Q 014A A V 1
R410A
S pace heating
230V 1ph 230V 1ph
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 21.3. Technical Details
Indoor EKHBRD014AAV1
Application
Function Heating only
Application High temperature
Leaving water range heating 25.0 - 80.0°C
Technical data
Dimensions (WxHxD) 600x705x695 mm
Weight 144kg
Drain connection 0mm
Material Precoated sheet metal
Sound data
Sound pressure 43dBA
Sound power 60dBA
Electrical data
Power supply 230V 1ph
Fuse size See installation manual
Capacity electric backup heater
Capacity steps 0
Domestic hot water tank EKHTS200A
Technical data
Water volume 200 l
Max. water temperature 75.0°C
Material inside tank Stainless steel (DIN1.4521)
Material outside tank Galvanised steel (precoated sheet metal)
Dimensions (WxHxD) 600x1335x695 mm
Weight 70kg
Outdoor ERSQ014AAV1
Performance
Nominal heating capacity 14.0 kW
COP 3
Operation range heating -20.0 - 20.0°C
Technical data
Dimensions (WxHxD) 900x1345x320 mm
Weight 120kg
Refrigerant R410A
Base charge 4.5kg
Sound data
Sound pressure 53dBA
Sound power 69dBA
Electrical data
Power supply 230V 1ph
Fuse size 25
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 31.4. Graphs
Required and available capacities
C apacity (kW)
15.0
12.0
9.0
6.0
3.0
0.0 O ut temp. (°C )
-5.8 -1.4 2.9 7.3 11.6 16.0
Required H P capacity BU H capacity S y stem capacity
Seasonal COP 3.4
Total thermal energy 21078 kWh
HP capacity (Heatpump capacity):
The integrated heat generation capacity of the heatpump. This value takes into account the energy used for the
defrost cycle.
Heat pump capacity depends on the outside temperature and the leaving water temperature. The simulator
calculates the heatpump capacity at the minimum night temperature in the winter as described in the
meteorological data, and at the selected maximum leaving water temperature.
The simulator can not calculate accurate capacity values for outside temperatures below -15°C.
BUH capacity (Backup heater capacity):
The nominal heat generation capacity of the electrical backup heater.
System capacity:
Total heat generation capacity of the system, i.e. the sum of heat pump capacity and backup heater capacity.
Spare capacity:
The surplus in heat generation capacity when compared to the required heating capacity, i.e. the difference
between system capacity and required capacity.
Equilibrium point or equilibrium temperature:
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 4The outside ambient temperature at which the heat pump capacity matches the heating demand. It is therefore the
lowest outside temperature at which no additional heat source is needed. The heat pump can cover the entire
heating demand down to this outside temperature. For outside temperatures below this equilibrium temperature,
additional heat from the backup heater is required to fulfill the heating demand. During transient conditions at
system heat-up, the equilibrium point can shift to a higher temperature than the one it would be at during normal
operations.
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 5Heating period
Temperature (°C )
16.0
11.6
7.2
2.8
-1.6
-6.0 M onth
Jan F eb M ar A pr M ay Jun Jul A ug S ep O ct N ov D ec
Location Country United Kingdom
City Wattisham Raf
Temperatures (min / max) Summer Day 22.5 / 26.3°C
Summer Night 14.8 / 18.6°C
Winter Day 6.1 / 12.1°C
Winter Night -5.8 / 0.2°C
The graph shows the simulated outdoor temperature variations within the defined heating months.
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 6Energy cost
E nergy cost (.14)
340000 331559
272000
204000
136000
68000
613 323
0
E RS Q 014A A V 1 G as boiler F uel boiler
Electricity normal tariff High 0.14 .14/kWh
Low 0.05 .14/kWh
Electricity heat pump tariff High 0.14 .14/kWh
Low 0.05 .14/kWh
Electricity Direct heater efficiency 100%
Gas Tariff 14 .14/kWh
Efficiency 89%
Fuel Tariff 0.14 .14/l
Efficiency 89%
Design conditions Required capacity 10.0 kW
Surface to be heated 100 m²
Zero capacity at outside temperature 16.0°C
The graph shows a comparison of the simulated annual running costs for Daikin Altherma, a gas boiler and an oil
boiler. The calculation is based upon the selected buildings yearly required thermal input, each systems coefficient
of performance (without pump) and the inputted energy prices.
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 7CO2 emission
C O 2 emission (Ton/y ear)
10
9.3
8
6.4
6
4.8
4
2.8
2
0
E RS Q 014A A V 1 G as boiler F uel boiler E lectric heating
Location Country United Kingdom
Electricity CO2 emission 0.442 kg/kWh
Direct heater efficiency 100%
Gas CO2 emission 0.202 kg/kWh
Efficiency 89%
Fuel CO2 emission 0.2686 kg/kWh
Efficiency 89%
Design conditions Required capacity 10.0 kW
Surface to be heated 100 m²
Zero capacity at outside temperature 16.0°C
The graph shows a comparison of the annual CO2 emissions for Daikin Altherma an electric heating system, a gas
boiler and an oil boiler sized to cover the yearly heat load for the simulated building. Neither Daikin Altherma nor
the electric heater will have any direct emissions. The emission from these systems is based on calculations
according to the average CO2 emission from the selected country's electricity production.
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 8Energy consumption per month
E nergy consumption (kWh)
1500
1200
900
600
300
0 M onth
Jan F eb M ar A pr M ay Jun Jul A ug S ep O ct N ov D ec
H eat pump day H eat pump night E lectric heater day E lectric heater night
Total for year 6281 kWh
Primary energy use 15702 kWh
Design conditions Required capacity 10.0 kW
Surface to be heated 100 m²
Zero capacity at outside temperature 16.0°C
The graph shows the energy consumption (input) per month for the heat pump and back up heater. There is made
a separation between day and night operation to show the amount of energy consumption that falls under day and
night tariff.
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 9Energy cost per month
E nergy cost (.14)
150
120
90
60
30
0 M onth
Jan F eb M ar A pr M ay Jun Jul A ug S ep O ct N ov D ec
Total for year 613 .14
Electricity normal tariff High 0.14 .14/kWh
Low 0.05 .14/kWh
Electricity heat pump tariff High 0.14 .14/kWh
Low 0.05 .14/kWh
Design conditions Required capacity 10.0 kW
Surface to be heated 100 m²
Zero capacity at outside temperature 16.0°C
The graph shows the running cost per month for Daikin Altherma according to the inputted electricity prices and the
power input as given in the graph "energy consumption per month".
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 10Thermal output by source
Thermal output (kWh)
1900
1520
1140
760
380
0 O ut temp. (°C )
-6.0 -1.6 2.8 7.2 11.6 16.0
H eat pump E lectric heater
Temperature range Heat pump -5.8 / 16.0°C
Percentages for year Heat pump 100.0%
Design conditions Required capacity 10.0 kW
Surface to be heated 100 m²
Zero capacity at outside temperature 16.0°C
The graph shows the simulated thermal output in kWh for the heat pump and back up heater through one year. The
back up heater is only operational at low temperatures. The main portion of the output is at moderate temperatures
where the heat pump can cover the entire heating requirement.
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 11Emitted heat per m²
E mitted heat (kWh/m²)
45
36
27
18
9
0 M onth
Jan F eb M ar A pr M ay Jun Jul A ug S ep O ct N ov D ec
Total for year 211 kWh/m²
Seasonal COP 3.4
Total thermal energy 21078 kWh
Design conditions Required capacity 10.0 kW
Surface to be heated 100 m²
Zero capacity at outside temperature 16.0°C
The graph shows the total emitted heat per m² living surface per month. The required heat emission varies with the
buildings insulation standard and the weather conditions at the location.
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 121.5. Supplementary Explanations
Design conditions:
The simulation is based on the assumption that the design room temperature is maintained 24h/24h. In actual
conditions, raising the room temperature setpoint above the design temperature will increase the heating demand
and thus the energy consumption. Lowering the room temperature setpoint (e.g. at night) will decrease the use of
energy.
Selection conditions:
The selection conditions for the LWT are adjustable in the program. Typical values are:
30 to 35°C (at design conditions) for floor heating,
30 to 45°C (at design conditions) for fan coil units and
40 to 50°C (at design conditions) for low temperature radiators.
Efficiencies of gas and oil boilers:
The efficiency values for gas and oil boilers used for comparative calculations are adjustable. The default
efficiencies are chosen to reflect the minimum requirements of the European Boiler Efficiency Directive 92/42/EC
for low temperature boilers.
Domestic warm water production:
The Daikin Altherma system can optionally be combined with a sanitary warm water tank for the preparation of
domestic warm water. The type of tank and its capacity can be selected in the simulation for the investment cost
calculation. The energy consumption for domestic warm water preparation is based on tapping profiles according
EN15450:2007 total energy consumption is expressed in kWh. The cold water temperature is assumed to be 10°C.
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 131.6. Field Settings Report
1st 2nd Setting name Date (*) Value (*) Date (*) Value (*) Default Range Step Unit
code code value
0 Remote control setup
00 User permission level 2 2-3 1 -
01 Room temperature compensation value 0 -5-5 0.5 °C
03 Status: space heating schedule timer mode 1 (ON) 0/1 - -
1 Automatic storage timing for domestic water heating
00 Status: night time storage 1 (ON) 0/1 - -
01 Night time storage start time 1:00 0:00-23:00 1:00 hour
02 Status: day time storage 0 (OFF) 0/1 - -
03 Day time storage start time 15:00 0:00-23:00 1:00 hour
2 Automatic setback function
00 Status: setback operation - 1 (ON) 0/1 - -
01 Setback operation start time - 23:00 0:00-23:00 1:00 hour
02 Setback operation stop time - 5:00 0:00-23:00 1:00 hour
3 Weather dependent set point
00 Low ambient temperature (Lo_A) -5 -10 -20-5 1 °C
01 High ambient temperature (Hi_A) 16 15 10-20 1 °C
02 Set point at low ambient temperature (Lo_TI) 45 70 25-80 1 °C
03 Set point at high ambient temperature (Hi_TI) 45 45 25-80 1 °C
4 Disinfection function
00 Status: disinfection operation 1 (ON) 0/1 - -
01 Disinfection operation day selection Fri Mon-Sun - -
02 Disinfection operation start time 23:00 0:00-23:00 1:00 hour
5 Automatic setback and disinfection set point
00 Set point: disinfection operation temperature 70 60-70 5 °C
01 Disinfection operation time duration 10 5-60 5 min
02 Leaving water setback temperature - 5 0-10 1 °C
03 Room setback temperature - 18 17-23 1 °C
6 Option setup
00 Domestic hot water tank installed 1 0 (OFF) 0/1 - -
01 Optional room thermostat installed 0 (OFF) 0/1 - -
04 Benefit kWh power supply mode 0 0/2 1 -
7 Option setup
00 Optional bottom plate heater installed 1 0 (OFF) 0/1 - -
02 Multiple set point pattern 0 (A) 0/1 - -
03 Multiple set point 1 0 (OFF) 0/1 - -
04 Multiple set point 2 0 (OFF) 0/1 - -
8 Option setup
00 Remote controller temperature control 1 (ON) 0/1 - -
01 Status: automatic restart function 1 (ON) 0/1 - -
03 Status: low noise level 1 1-3 1 -
04 Status: freeze up prevention 0 0-2 1 -
9 Automatic temperature compensation
00 Leaving water temperature compensation value 0 -5-5 0.5 °C
01 Domestic hot water tank compensation value 0 -5-5 0.5 °C
02 Thermo ON/OFF admission 0 -5-5 0.5 °C
A Option setup
02 Set point: required temperature difference for leaving and returning water 5 10 5-15 1 °C
03 Set point: multiple set point 1 required temperature value 35 25-80 1 °C
04 Set point: multiple set point 2 required temperature value 65 25-80 1 °C
B Domestic hot water set points
00 Set point: reheat minimum temperature 35 35-65 1 °C
01 Set point: reheat maximum temperature 45 35-75 1 °C
02 Status: weather dependent domestic water heating 1 (ON) 0/1 - -
03 Set point: storage temperature 70 45-75 1 °C
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 141st 2nd Setting name Date (*) Value (*) Date (*) Value (*) Default Range Step Unit
code code value
C Leaving water temperature limits
00 Set point: leaving water maximum temperature 80 37-80 1 °C
01 Set point: leaving water minimum temperature 25 25-37 1 °C
D Domestic water heating retention times
00 Set point: minimum time for domestic water heating 10 5-20 1 -
01 Set point: maximum time for domestic water heating 30 10-60 5 -
02 Set point: interval minimum stop time of domestic water heating 15 5-30 5 -
E Service mode
00 Vacuum mode 0 0/1 - -
04 Pump only operation 0 0-2 1 -
(*) Installer setting at variance with default value.
Note: The preferred settings of your Daikin Altherma system are mentioned in field settings report. For more details
see installation manual.
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 15Information Fiche for Customers
Guidance for purchasing a heat pump
- information fiche for customers -
Warning! Read before purchasing
Efficient operation of this heat pump will only be ensured if the system is correctly matched to the heat loss of the
building and climate zone in which it is installed!
Always consult a competent installer and ask them to complete this fiche before purchasing!
This fiche should be completed by a qualified installer to provide you with information and recommendations about
the most suitable heat pump system for your home. In this way you will obtain the benefits of the very high
efficiency of heat pumps which concentrate the heat stored in the air, ground or water.
Some systems are also reversible and can produce cooling through extracting heat and ejecting it to the immediate
surroundings. Some systems may also provide hot water for sanitary use.
Heat pumps can be selected which can be used with most distribution systems including radiators, warm air and
under floor heating, and can be retrofitted to most existing heating systems with some suitable precautions as set
out below.
Reducing heat loss and solar gain of buildings
If your dwelling is more than 10 years old, before choosing a heat pump, it may be cost effective to first improve
your insulation, to reduce heat loss for heating you building or heat gain if you are looking to cool it. (It is actually
more efficient to fit a smaller heat pump in a well insulated building, for example) If you accept the installer’s
recommendations for improving insulation, the heat pump you buy should then be sized appropriately.
For further information on reducing heat loss or solar gain and sizing and installing heat pumps systems consult
www.kyotoinhome.info
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 16Customer name ................................................................................
Address ................................................................................
Building type: detached / semi-detached / terraced / apartment
Approximate year built: ....................
1. Description of existing heating system / building
Fuel type oil / mains gas / direct electricity / coal / bottled gas / other
Existing distribution system radiators / warm air / under floor heating / other
Minimum design temperature for heating of current system (°C)
Heat loss of building in current state (kW)
Maximum design temperature for cooling of current system (°C)
Potential solar heat gain of building in current state (kW)
2. Recommendations for upgrading building insulation
Measures for reducing heat loss
Reduced heat loss (kW)
Measures for reducing solar gain
Reduced solar gain (kW)
3. Primary heating
Heat pump manufacturer Daikin
Model ERSQ014AAV1
Heat source air
Distribution medium
Refrigerant R410A
Heat capacity (kW) 14.0
Heat output / electricity input 3.0
Seasonal efficiency over year 3.4
Capable of supplying domestic hot water? Yes
Auxiliary heating
Type EKHBRD014AAV1
Heat capacity (kW) 0.0
Cooling (if required)
Cooling capacity (kW)
Cold output / electricity input
Annual demands and emissions
Renewable energy (kWh)
Energy consumption (kWh) 6281
Carbon dioxide emissions (tonnes CO2) 2.8
Carbon dioxide savings (%) 70
Installer signature ..................................................
Qualifications ..................................................
Company ..................................................
Address ................................................................................
Date ..................................................
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 17Information Fiche for Installers
Guidance for installing a heat pump
- information fiche for installers -
Warning! Read before purchasing
Efficient operation of this heat pump requires a competent installer to design the heating system to match the heat
loss of the building and climate zone and to install the system in accord with the manufacturers instructions.
Heat pumps have a very high efficiency because they only use energy to concentrate the heat present in the
ground, water or air. Some models can also operate in reverse mode and produce cooling by rejecting heat from a
dwelling. The information contained in this fiche will enable you to ensure that the benefits of the heat pump unit
are carried over to the collector and distribution systems and to complete the fiche which shall be given to the
customer to explain your choice.
1. Minimum information to be supplied by the manufacturer
Manufacturer Daikin
Model ERSQ014AAV1
Heat collector Brazed plate heat exchanger
Heat distribution medium
Heating capacity (kW) 14.0
Cooling capacity (kW) 0.0
Hot water supply Yes
Refrigerant type R410A / GWP = 1975
Noise level (dbA) 53
Parts available from date of sale (years) 10
Coefficient of performance (heating) 3.0
Specifying inlet and outlet temperatures (°C) LWC=45 (DT=5)
Energy efficiency ratio (cooling) 0.0
Specifying inlet and outlet temperatures (°C) LWE=18 (DT=5)
For retrofitting to existing heating systems, the heat pump should be selected to match the existing distribution
system which may be ducted warm air, hot water via radiators or underfloor heating. As the outlet temperature may
be lower than that of the boiler it will replace, it is essential to identify ways of reducing the heat loss or solar gain in
order to maintain the same size of distribution system.
Definitions
Coefficient of performance (COP) is the ratio of heat output to electricity input for a specified source and output
temperature.
Energy efficiency ratio (EER) is the ratio of cold output to electricity input for a specified source and output
temperature.
Seasonal coefficient of performance (SCOP) is the coefficient of performance averaged over the length of the
heating season for the heat pump system at a specified location.
Seasonal energy efficiency ratio (SEER) is the energy efficiency ratio averaged over the length of the cooling
season for the heat pump system at a specified location.
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 18The primary energy ratio (PER) is given by: COP × 0,40 (or COP/2,5) for heat pumps with electrically driven
compressors and by COP × 0,91 (or COP/1,1) for heat pumps with gas driven compressors, where 0,40 is the
current European average electricity power generation efficiency including grid losses and 0,91 is the current
European average gas efficiency including distribution losses.
The manufacturer shall provide programs, tools and guidelines to help you perform the following calculations.
Climatic data should be appropriate for the geographical location of the building.
2. Reducing the heat loss and solar gain of buildings
If the dwelling is more than 10 years old, then it will probably be cost effective to reduce the heat loss by increasing
the insulation level and to reduce the solar gain by restricting the direct rays of the sun during the summer. If the
customer accepts your recommendations then the system should be sized for the reduced heat loss and solar gain.
For further information on reducing heat loss or solar gain and sizing and installing heat pumps systems consult
www.kyotoinhome.info
3. Heat loss and sizing of the heating system
The heat loss of the building shall be calculated in accordance with national practice or using a suitable validated
computer program based on EN 832, the Euronorm for calculating heat loss. This heat loss should then be
compared with the current values required by building codes. For existing buildings, it is generally cost effective to
bring the insulation standard closer to current values before sizing the heat pump for the reduced heat loss.
Seasonal performance factor and energy consumption for heating
The calculation shall consider:
- climate (outdoor air temperature),
- design outdoor temperature,
- the variation of the ground-temperature over a year (for ground-source heat pumps, both with vertical and
horizontal collectors),
- desired temperature indoors,
- temperature level of hydronic heating systems,
- annual energy demand for space heating,
- annual energy demand for domestic hot water (if applicable),
Primary Energy Ratio (PER) and Annual CO2 emissions
The average efficiency for power/gas generation as well as electric grid/gas distribution losses to be used in the
calculation. CO2 emissions and savings to be calculated based on the primary energy usage.
4. Solar gain and sizing of the cooling system
If the system can also produce cooling then the solar gain of the building shall be calculated in accordance with
national practice or using a validated computer program. This gain should then be compared with the current
values required by building codes. For existing buildings, it is generally cost effective to reduce the solar gain
before sizing the heat pump for the reduced solar gain.
Seasonal energy efficiency ratio and energy consumption for cooling
The calculation shall consider:
- climate (outdoor air temperature),
- design outdoor temperature,
- the variation of the ground-temperature over a year (for ground-source heat pumps, both with vertical and
horizontal collectors),
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 19- desired temperature indoors,
- temperature level of hydronic heating systems,
- annual energy demand for space cooling.
Primary Energy Ratio (PER) and Annual CO2 emissions
The average efficiency for power/gas generation as well as electric grid/gas distribution losses to be used in the
calculation. CO2 emissions and savings to be calculated based on the primary energy usage.
5. Training for installers and drillers
Suitable courses are available in most Member States to enable installers to obtain appropriate national or
European accredited qualifications. Manufacturers shall either organise their own courses to assist installers with
using their equipment or work with local training institutes to provide such information as part of their courses.
For ground source heat pumps where a vertical bore hole is required, suitable courses for drillers are available in
some Member States.
The present report is drawn up by way of information only and does not constitute an offer binding upon Daikin. Daikin has compiled the content of this report to the best of its
knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content. Specifications and prices are
subject to change without prior notice. Daikin explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or
interpretation of this report.
Page 20You can also read
