37
Technical parameters for heat pump space heaters
Low-temperature heat pump
Equipped with a supplementary heater
Heat pump combination heater
Parameters shall be declared for low-temperature application 35°C
Parameters shall be declared for average climate condition
Item Symbol Value Unit
Item Symbol Value Unit
Nominal Thermal capacity P
nominal
7 kW
Seasonal space heating
energy efficiency
η
s
175 %
Declared capacity for heating for part load at indoor
temperature 20°C and outdoor temperature Tj
Declared coefficient of performace or primary energy ratio for
part load at indoor temperature 20°C and outdoor
temperature Tj
T
j
= -7°C Pdh 6,1 kW
T
j
= -7°C COP
d
2,96
T
j
= +2°C Pdh 3,7 kW
T
j
= +2°C COP
d
4,36
T
j
= +7°C Pdh 3,2 kW
T
j
= +7°C COP
d
5,56
T
j
= +12°C Pdh 3,7 kW
T
j
= +12°C COP
d
7,88
T
j
= bivalent temperature Pdh 6,1 kW
T
j
= bivalent temperature COP
d
2,96
j
= Operation limit
temperature
Pdh 6,1 kW
j
= Operation limit
temperature
COP
d
2,73
For air-to-water heat pump:
T
j
= -15°C
Pdh - kW
For air-to-water heat pump:
Tj = -15°C ( if TOL ˂ -20°C)
COP
d
-
Bivalent temperature T
biv
-7 °C
For air-to-water heat pumps:
Operation limit temperature
TOL -20 °C
Cycling interval capacity for
heating
P
cych
- kW
Cycling interval efficiency COP
cyc
-
Degradation co-efficient
T
j
= 7°C
Cdh 0,967 -
Heating water operating limit
temperature
WTOL 60 °C
Degradation co-efficient
T
j
= 12°C
Cdh 0,959 -
Power consumption in modes other than active mode
Supplementary heater
Off mode P
off
0,019 kW
Rated heater output P
sup
- kW
Thermostat-off mode P
To
0,019 kW
Type of energy input - Standby mode P
SB
0,019 kW
Crankcase heater mode P
CK
0,030 kW
Other items
Capacity control variable
For air-to-water heat pumps:
rated air flow rate, outdoors
- 4200 m
3
/h
Sound power level,
indoors/outdoors
L
WA
- / 64 dB(A)
For water- or brine-to-water
heat pumps: rated brine or
water flow rate, outdoor heat
- - m
3
/h
Annual energy consumption Q
HE
3179 kWh