Combination Heaters With Medium-Temperature Heat Pump - DeDietrich AWHP 4 MR User Manual

Tab.13 Technical parameters for heat pump combination heaters (parameters declared for medium-temperature application)
Product name
Air-to-water heat pump
Water-to-water heat pump
Brine-to-water heat pump
Low-temperature heat pump
Equipped with a supplementary heater
Heat pump combination heater
Rated heat output under average conditions
Rated heat output under colder conditions
Rated heat output under warmer conditions
Declared capacity for heating for part load at indoor
temperature 20 °C and outdoor temperature
T
= -7 °C
j
T
= +2 °C
j
T
= +7 °C
j
T
= +12 °C
j
T = bivalent temperature
j
T
= operation limit temperature
j
Bivalent temperature
Degradation coefficient
(2)
Seasonal space heating energy efficiency under
average conditions
Seasonal space heating energy efficiency under
colder conditions
Seasonal space heating energy efficiency under
warmer conditions
Declared coefficient of performance or primary en­
ergy ratio for part load at indoor temperature 20 °C
T
and outdoor temperature
T
= -7 °C
j
T
= +2 °C
j
T = +7 °C
j
T = +12 °C
j
T
= bivalent temperature
j
T
= operation limit temperature
j
Operation limit temperature for air-to-water heat
pumps
Heating water operating limit temperature
Electrical power consumption
Off mode
Thermostat-off mode
Stand-by
Crankcase heater mode
7623755 - v02 - 03072015

3.2.4 Combination heaters with medium-temperature heat pump

Prated
(1)
Prated
(13)
Prated
(13)
T
j
Pdh
Pdh
Pdh
Pdh
Pdh
Pdh
T
Cdh
ƞ
ƞ
ƞ
j
COPd
COPd
COPd
COPd
COPd
COPd
TOL
WTOL
P
P
P
P
MIV-4
AWHP 4 MR
Yes
No
No
No
Yes
Yes
kW 3
kW 3
kW 3
kW 2.9
kW 3.5
kW 3.9
kW 4.8
kW 2.8
kW 2.8
°C -10
biv
— 1.0
% 150
s
% 120
s
% 195
s
- 1.82
- 3.88
- 5.57
- 9.33
- 1.47
- 1.47
°C -10
°C 60
kW 0.009
OFF
kW 0.049
TO
kW 0.013
SB
kW 0.055
CK
3 Technical specifications
MIV-4 MIV-4
AWHP 6 MR-2 AWHP 8 MR-2
Yes Yes
No No
No No
No No
Yes Yes
Yes Yes
4 6
4 6
5 6
3.5 5.6
4.5 6.1
4.8 6.4
5.2 6.7
3.6 5.6
3.6 5.6
-10 -10
1.0 1.0
137 136
116 119
172 169
1.89 1.95
3.53 3.49
4.74 4.57
7.08 6.33
1.52 1.63
1.52 1.63
-10 -10
60 60
0.009 0.009
0.049 0.049
0.013 0.013
0.055 0.055
MIV-4 19