Appendix
0020196687_03 flexoTHERM exclusive Installation and maintenance instructions
63
Application limits for the heat pump: Heating (heat source = brine)
–
At the same volume flow rates in the heating circuit (
Δ
T 5 K or
Δ
T 8 K) and the brine circuit (
Δ
T 3 K) as for the nominal
heat output test under standard nominal conditions. Operation of the pump outside the application limits results in the
heat pump being switched off by the internal control and safety devices.
–
Application limits for the heat pump: Heating (Brine heat source):
–
B15/W65
–
B25/W59
–
B25/W25
–
B
−
10/W25
–
B
−
10/W60
–
B
−
5/W65
O.3
Air heat source
Heat source circuit/brine circuit
VWF 57/4
VWF 87/4
VWF 117/4
VWF 157/4
VWF 197/4
Heat source module
1 x
VWL 11/4 SA
1 x
VWL 11/4 SA
1 x
VWL 11/4 SA
2 x
VWL 11/4 SA
2 x
VWL 11/4 SA
Brine fluid type
Ethylene glycol
44% vol.
Ethylene glycol
44% vol.
Ethylene glycol
44% vol.
Ethylene glycol
44% vol.
Ethylene glycol
44% vol.
Building circuit/heating circuit
VWF 57/4
VWF 87/4
VWF 117/4
VWF 157/4
VWF 197/4
Heat source module
1 x
VWL 11/4 SA
1 x
VWL 11/4 SA
1 x
VWL 11/4 SA
2 x
VWL 11/4 SA
2 x
VWL 11/4 SA
Nominal flow at
Δ
T 5 K
1,070 l/h
1,510 l/h
1,990 l/h
2,650 l/h
3,440 l/h
Max. remaining feed head with
Δ
T 5 K
0.061 MPa
(0.610 bar)
0.042 MPa
(0.420 bar)
0.031 MPa
(0.310 bar)
0.064 MPa
(0.640 bar)
0.038 MPa
(0.380 bar)
Nominal flow with
Δ
T 8 K
660 l/h
1,020 l/h
1,350 l/h
1,720 l/h
2,300 l/h
Max. remaining feed head with
Δ
T 8 K
0.069 MPa
(0.690 bar)
0.056 MPa
(0.560 bar)
0.053 MPa
(0.530 bar)
0.084 MPa
(0.840 bar)
0.075 MPa
(0.750 bar)
Min. volume flow during continuous oper-
ation at the application limits
660 l/h
1,020 l/h
1,350 l/h
1,720 l/h
2,300 l/h
Max. volume flow during continuous op-
eration at the application limits
1,070 l/h
1,510 l/h
1,990 l/h
2,650 l/h
3,440 l/h
Heating pump electrical power consump-
tion for A7/W35
Δ
T 5 K with an external
pressure loss of 250 mbar in the heating
circuit
28 W
36 W
50 W
70 W
78 W
Performance data
The following performance data is applicable to new products with clean heat exchangers.
VWF 57/4
VWF 87/4
VWF 117/4
VWF 157/4
VWF 197/4
Heat source module
1 x
VWL 11/4 SA
1 x
VWL 11/4 SA
1 x
VWL 11/4 SA
2 x
VWL 11/4 SA
2 x
VWL 11/4 SA
A2/W35 heating output
5.70 kW
7.80 kW
10.30 kW
13.90 kW
17.40 kW
Effective power consumption A2/W35
1.36 kW
1.95 kW
2.64 kW
3.39 kW
4.70 kW
A2/W35 output figure/EN 14511 coefficient
of performance
4.20
4.00
3.90
4.10
3.70
Heating output A7/W35
Δ
T 5 K
6.20 kW
8.80 kW
11.50 kW
15.30 kW
19.80 kW
Effective power consumption A7/W35
Δ
T
5 K
1.29 kW
1.91 kW
2.50 kW
3.19 kW
4.50 kW
Output figure A7/W35
Δ
T 5 K/coefficient
of performance EN 14511
4.80
4.60
4.60
4.80
4.40
Heating output A7/W45
Δ
T 5 K
6.10 kW
9.00 kW
12.00 kW
15.60 kW
20.60 kW
Effective power consumption A7/W45
Δ
T
5 K
1.65 kW
2.43 kW
3.16 kW
4.00 kW
5.57 kW
Output figure A7/W45
Δ
T 5 K/coefficient
of performance EN 14511
3.70
3.70
3.80
3.90
3.70
Heating output A7/W55
Δ
T 8 K
6.10 kW
9.50 kW
12.20 kW
16.00 kW
20.90 kW