Appendix
0020213395_00 flexoTHERM exclusive Installation and maintenance instructions
63
L.3
Groundwater heat source
Heat source circuit/brine circuit and groundwater circuit
VWF 57/4 230 V
VWF 87/4 230 V
VWF 117/4 230 V
Heat source module
VWW 11/4 SI
VWW 11/4 SI
VWW 11/4 SI
Min. source inlet temperature (hot water)
in heating mode
10
℃
10
℃
10
℃
Max. source inlet temperature (hot water)
in heating mode
25
℃
25
℃
25
℃
Nominal flow of groundwater at
Δ
T 3 K
with W10W35
1,300 l/h
2,160 l/h
3,100 l/h
Brine fluid type
Ethylene glycol 30% vol.
Ethylene glycol 30% vol.
Ethylene glycol 30% vol.
Building circuit/heating circuit
VWF 57/4 230 V
VWF 87/4 230 V
VWF 117/4 230 V
Heat source module
VWW 11/4 SI
VWW 11/4 SI
VWW 11/4 SI
Nominal flow at
Δ
T 5 K
1,025 l/h
1,730 l/h
2,270 l/h
Max. remaining feed head with
Δ
T 5 K
0.08 MPa
(0.80 bar)
0.2193 MPa
(2.1930 bar)
0.4224 MPa
(4.2240 bar)
Nominal flow with
Δ
T 8 K
710 l/h
1,120 l/h
1,510 l/h
Max. remaining feed head with
Δ
T 8 K
0.062 MPa
(0.620 bar)
0.2103 MPa
(2.1030 bar)
0.4045 MPa
(4.0450 bar)
Min. volume flow during continuous oper-
ation at the application limits
710 l/h
1,120 l/h
1,510 l/h
Max. volume flow during continuous op-
eration at the application limits
1,025 l/h
1,730 l/h
2,270 l/h
Heating pump electrical power consump-
tion for W10/W35
Δ
T 5 K with an external
pressure loss of 250 mbar in the heating
circuit
24 W
37 W
49 W
Performance data
The following performance data is applicable to new products with clean heat exchangers.
Check conditions for determining the performance data in accordance with EN 14511
Installation: Connection lines on the heat source side between VWF xx/4 and VWW xx/4 SI = 2 x 2 m (pipe internal diameter
= 32 mm), environment circuit pump setting: Heating mode: Factory setting (auto), Cooling mode: Factory setting (auto)
VWF 57/4 230 V
VWF 87/4 230 V
VWF 117/4 230 V
Heat source module
VWW 11/4 SI
VWW 11/4 SI
VWW 11/4 SI
Heating output W10/W35
Δ
T 5 K
5.90 kW
9.90 kW
13.10 kW
Power consumption W10/W35
Δ
T 5 K
1.30 kW
2.00 kW
2.70 kW
Output figure W10/W35
Δ
T 5 K/coefficient
of performance EN 14511
4.60
4.80
4.70
Heating output W10/W45
Δ
T 5 K
6.50 kW
9.90 kW
13.40 kW
Power consumption W10/W45
Δ
T 5 K
1.70 kW
2.60 kW
3.40 kW
Output figure W10/W45
Δ
T 5 K/coefficient
of performance EN 14511
4.00
3.80
3.90
Heating output W10/W55
Δ
T 8 K
6.60 kW
10.30 kW
13.80 kW
Power consumption W10/W55
Δ
T 8 K
2.00 kW
3.10 kW
4.00 kW
Output figure W10/W55
Δ
T 8 K/coefficient
of performance EN 14511
3.30
3.30
3.40
Sound power level W10/W35
EN 12102/EN 14511 L
WI
in heating mode
43.3 dB(A)
46.9 dB(A)
50.0 dB(A)
Sound power level W10/W45
EN 12102/EN 14511 L
WI
in heating mode
45.4 dB(A)
49.4 dB(A)
50.7 dB(A)
Sound power level W10/W55
EN 12102/EN 14511 L
WI
in heating mode
45.7 dB(A)
52.6 dB(A)
52.6 dB(A)
