Appendix
0020213394_01 flexoTHERM exclusive Installation and maintenance instructions
69
P.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
A2/W35 power consumption
1.40 kW
2.10 kW
2.70 kW
3.50 kW
4.80 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
Power consumption A7/W35
Δ
T 5 K
1.40 kW
2.00 kW
2.60 kW
3.30 kW
4.60 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
Power consumption A7/W45
Δ
T 5 K
1.70 kW
2.50 kW
3.20 kW
4.20 kW
5.70 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
Power consumption A7/W55
Δ
T 8 K
2.00 kW
3.00 kW
3.90 kW
5.00 kW
6.70 kW
Output figure A7/W55
Δ
T 8 K/coefficient
of performance EN 14511
3.10
3.20
3.20
3.30
3.20
Cooling output A35/W18
Δ
T 5 K, active
6.60 kW
8.60 kW
12.10 kW
15.80 kW
22.30 kW
Power consumption A35/W18
Δ
T 5 K, act-
ive
1.60 kW
2.80 kW
3.70 kW
4.40 kW
6.20 kW
Energy efficiency ratio A35/W18 EN 14511
4,30
3,20
3,40
3,90
3,40
Sound power level A7/W35
EN 12102/EN 14511 L
WI
in heating mode
40.3 dB(A)
45.8 dB(A)
44.4 dB(A)
48.7 dB(A)
48.1 dB(A)
Sound power level A7/W45
EN 12102/EN 14511 L
WI
in heating mode
41.0 dB(A)
50.1 dB(A)
46.4 dB(A)
49.4 dB(A)
46.1 dB(A)