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Technical parameters
Model(s):
KEM-12 DTN
Air-to-water heat pump:
YES
Water-to-water heat pump:
NO
Brine-to-water heat pump:
NO
Low-temperature heat pump:
YES
Equipped with a supplementary heater:
NO
Heat pump combination heater:
NO
Parameters shall be declared for medium-temperature application, except for low-temperature heat pumps. For low-temperature heat
pumps, parameters shall be declared for low-temperature application.
Parameters shall be declared for average, colder and warmer climate conditions.
For heat pump combination heater:
Declared load profile
-
Water heating energy efficiency
ηwh
-
%
Daily electricity consumption
Qelec
-
kWh
Daily fuel consumption
Qfuel
-
kWh
Annual electricity consumption
AEC
-
kWh
Annual fuel consumption
AFC
-
GJ
(*) For heat pump space heaters and heat pump combination heaters, the rated heat output Prated is equal to the design load for heating
Pdesignh, and the rated heat output of a supplementary heater Psup is equal to the supplementary capacity for heating sup(Tj).
(**) If Cdh is not determined by measurement then the default degradation coefficient is Cdh = 0,9.
Item
Symbol
Value
Unit
Rated heat output (*)
Prated
12
kW
Declared capacity for heating for part load at indoor temperature
20 °C and outdoor temperature Tj
Tj = -7°C
Pdh
11.1
kW
Tj = 2°C
Pdh
7.0
kW
Tj = 7°C
Pdh
4.3
kW
Tj = 12°C
Pdh
2.0
kW
Tj = bivalent temperature
Pdh
11.1
kW
Tj = operating limit
Pdh
10.4
kW
For air-to-water heat pumps: Tj = -15°C
Pdh
-
kW
Bivalent temperature
Tbiv
-7
°C
Cycling interval capacity for heating
Pcych
-
kW
Degradation co-efficient (**)
Cdh
0.9
--
Power consumption in modes other than active mode
off mode
Poff
0.018
kW
standby mode
Psb
0.019
kW
thermostat-off mode
Pto
0.023
kW
crankcase heater mode
Pck
0.060
kW
Other items
Capacity control
variable
Sound power level, indoors/ outdoors
LWA
-/68
dB
Annual energy consumption
QHE
7050
kWh
Item
Symbol
Value
Unit
Seasonal space heating energy efficiency
ηs
143
%
Declared coefficient of performance or primary energy ratio for part load
at indoor temperature 20 °C and outdoor temperature Tj
Tj = -7°C
COPd
2.50
-
Tj = 2°C
COPd
3.60
-
Tj = 7°C
COPd
5.20
-
Tj = 12°C
COPd
4.90
-
Tj = bivalent temperature
COPd
2.50
-
Tj = operating limit
COPd
2.35
-
For air-to-water heat pumps: Tj = -15°C
COPd
-
-
For air-to-water heat pumps: Operation
limit temperature
TOL
-10
°C
Cycling interval efficiency
COPcyc or
PERcyc
-
%
Heating water operating limit temperature
WTOL
-
°C
Supplementary heater
Rated heat output (**)
Psup
-
kW
Type of energy input
-
For air-to-water heat pumps: Rated air
flow rate, outdoors
-
4800
/h
For water-/or brine-to-water heat pumps: Rated
brine or water flow rate, outdoor heat exchanger
-
-
/h
42


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