Device
WPG-18-1 HT
WPG-21-1 HT
Version
Heat source primary side
1)
Geothermal energy
2)
Heat sink secondary side
Water
3)
Controller
TERMOTRONIC 3000 WEB
Device placement
Internal
Placement of the controller un.
Installed in the heat pump
Compressor
1 x scroll
Electric heater
3 x 2 kW ~ 230V
Soft start-up
Yes (optional)
Circulation pump, primary
/
Circulation pump, secondary
/
Capacity
Heating
Heating power / electrical power / COP
11)
W10/W30-35
kW / kW / -
18,3 / 3,3 / 5,54
21,5 / 3,9 / 5,50
W10/W47-55
kW / kW /
16,3 / 4,7 / 3,46
19,4 / 5,7 / 3,30
B0/W30-35
4)
kW / kW / -
13,9 / 3,1 / 4,55
16,6 / 3,6 / 4,61
B0/W47-55
4)
kW / kW / -
12.7 /4.3 / 2.95
15,2 / 5,1 / 2,98
Cooling
5)
Cooling power / electrical power / EER
12)
W20/W12-7
kW / kW / -
14,4 / 3,1 / 4,56
17.3 /3.7 / 4.65
B20/W12-7
kW / kW / -
14,4 / 3,1 / 4,56
17.3 /3.7 / 4.65
Electrical data
Rated voltage
3N~ 400 V; 50 Hz
Max. operational current
A
21
22.5
Max. electrical power
kW
12
13.1
Z
max
14)
Ω
0.055
0.083
Current of blocked rotor (LRA)
A
64
74
Fuses
15)
A
3 x 20
3 x 25
Electrical power cable
6)7)
Internal unit
mm
2
5 x 2.5
5 x 4
Cooling system
WPG H
Refrigerant - type
R407C
Refrigerant - quantity
kg
2.4
2.8
Max. operational pressure
MPa
2.9
WPG HK
Refrigerant - type
R407C
Refrigerant - quantity
kg
2.5
3.3
Max. operational pressure
MPa
2.9
Primary side
1)
(heat source) - water
Min. / Max. pressure in the system
MPa
0,05 / 0,3 (0,5 / 3 bar)
Pipe connections
G 5/4” (int. dev.)
G 5/4” (int. dev.)
Recommended dimensions of pipes leading to the
device
8)
DN
32
32
Device inlet water temp. 10 °C (i.e. ground water) - operation as “water-water”
Rated flow
m
3
/ h
4.2
4.9
Pressure drop at rated flow
kPa
16
20
Heating
Operating envelope -
°C
7/25
min. / max. water temperature
Cooling
Operating envelope -
°C
10/40
min. / max. water temperature
Inlet temp. 30% solution of ethylene glycol in the device 0 °C (i.e. ground collector, borehole) - operation as “earth-
water”
Rated flow
m
3
/ h
2.7
3.3
Pressure drop at rated flow
kPa
11
14
Heating
Operating envelope -
°C
-7/25
min. / max. medium temperature
Cooling
Operating envelope -
°C
10/40
min. / max. medium temperature
Recommended main circulation pump
8)
WILO
Stratos PARA 25/1-8
Stratos PARA 25/1-8