Groundwater Heat Source - Vaillant flexoTHERM exclusive VWF 57/4 Installation And Maintenance Instructions Manual

L.3

Groundwater heat source

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