0020213394_05 Installation and maintenance instructions
71
–
B
−
10/W25
–
B
−
10/W60
–
B
−
5/W65
Q.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 heat output
5.63 kW
7.79 kW
10.27 kW
13.81 kW
17.35 kW
Effective power consumption A2/W35
1.36 kW
1.99 kW
2.68 kW
3.38 kW
4.69 kW
Coefficient of performance A2/W35/EN
14511
4.14
3.91
3.83
4.09
3.70
Heat output A7/W35
Δ
T 5 K
6.16 kW
8.74 kW
11.45 kW
15.19 kW
19.78 kW
Effective power consumption A7/W35
Δ
T
5 K
1.31 kW
1.91 kW
2.50 kW
3.21 kW
4.50 kW
Coefficient of performance A7/W35
Δ
T
5 K/EN 14511
4.69
4.58
4.58
4.73
4.39
Heat output A7/W45
Δ
T 5 K
6.04 kW
9.00 kW
11.98 kW
15.48 kW
20.55 kW
Effective power consumption A7/W45
Δ
T
5 K
1.66 kW
2.44 kW
3.17 kW
4.06 kW
5.61 kW
Coefficient of performance A7/W45
Δ
T
5 K/EN 14511
3.64
3.69
3.77
3.82
3.67
Heat output A7/W55
Δ
T 8 K
6.09 kW
9.45 kW
12.20 kW
15.88 kW
20.83 kW
Effective power consumption A7/W55
Δ
T
8 K
1.97 kW
2.95 kW
3.84 kW
4.88 kW
6.62 kW
Coefficient of performance A7/W55
Δ
T
8 K/EN 14511
3.09
3.21
3.17
3.25
3.15
Cooling output A35/W18
Δ
T 5 K, active
6.53 kW
8.52 kW
12.02 kW
15.76 kW
20.22 kW
Effective power consumption A35/W18
Δ
T
5 K, active
1.59 kW
2.73 kW
3.67 kW
4.23 kW
6.13 kW
Energy efficiency ratio A35/W18 EN 14511
4.12
3.12
3.28
3.73
3.30
