Appendix
60
Installation and maintenance instructions flexoTHERM exclusive 0020213395_00
VWF 57/4 230 V
VWF 87/4 230 V
VWF 117/4 230 V
Output levels for the auxiliary electric
heater (connection diagram 1; connection
diagram 2)
–
2.0 / 3.5 / 5.5 kW
–
2.0 / 3.5 / 5.5 / 7.0 /
9.0 kW
–
2.0 / 3.5 / 5.5 kW
–
2.0 / 3.5 / 5.5 / 7.0 /
9.0 kW
–
2.0 / 3.5 / 5.5 kW
–
2.0 / 3.5 / 5.5 / 7.0 /
9.0 kW
EN 60529 level of protection
IP 10B
IP 10B
IP 10B
Hydraulics
VWF 57/4 230 V
VWF 87/4 230 V
VWF 117/4 230 V
Heating flow/return connection
G 1 1/2
″
G 1 1/2
″
G 1 1/2
″
Heat source flow/return connection
G 1 1/2
″
G 1 1/2
″
G 1 1/2
″
Heating expansion vessel connection
G 3/4
″
G 3/4
″
G 3/4
″
Heat source circuit/brine circuit
VWF 57/4 230 V
VWF 87/4 230 V
VWF 117/4 230 V
Brine content of the brine circuit in the
heat pump
2.5 l
3.1 l
3.6 l
Brine circuit materials
–
Cu
–
CuZn Alloy
–
Stainless Steel
–
EPDM
–
Brass
–
Fe
–
Cu
–
CuZn Alloy
–
Stainless Steel
–
EPDM
–
Brass
–
Fe
–
Cu
–
CuZn Alloy
–
Stainless Steel
–
EPDM
–
Brass
–
Fe
Min. brine fluid operating pressure
≥
0.07 MPa
(
≥
0.70 bar)
≥
0.07 MPa
(
≥
0.70 bar)
≥
0.07 MPa
(
≥
0.70 bar)
Max. brine fluid operating pressure
≤
0.3 MPa
(
≤
3.0 bar)
≤
0.3 MPa
(
≤
3.0 bar)
≤
0.3 MPa
(
≤
3.0 bar)
Max. electrical power consumption, brine
circuit pump
76 W
76 W
130 W
Brine pump type
High-efficiency pump
High-efficiency pump
High-efficiency pump
Building circuit/heating circuit
VWF 57/4 230 V
VWF 87/4 230 V
VWF 117/4 230 V
Heating circuit water contents in the heat
pump
3.2 l
3.9 l
4.4 l
Heating circuit materials
–
Cu
–
CuZn-Alloy
–
Stainless Steel
–
EPDM
–
Brass
–
Fe
–
Cu
–
CuZn-Alloy
–
Stainless Steel
–
EPDM
–
Brass
–
Fe
–
Cu
–
CuZn-Alloy
–
Stainless Steel
–
EPDM
–
Brass
–
Fe
Permissible heating water condition
Do not add frost or
corrosion protection agents
to heating water. Soften the
heating water at water
hardnesses from
3.0
mmol/l (16.8° dH)
in
accordance with Directive
VDI 2035 Sheet 1.
Do not add frost or
corrosion protection agents
to heating water. Soften the
heating water at water
hardnesses from
3.0
mmol/l (16.8° dH)
in
accordance with Directive
VDI 2035 Sheet 1.
Do not add frost or
corrosion protection agents
to heating water. Soften the
heating water at water
hardnesses from
3.0
mmol/l (16.8° dH)
in
accordance with Directive
VDI 2035 Sheet 1.
Min. heating circuit operating pressure
≥
0.07 MPa
(
≥
0.70 bar)
≥
0.07 MPa
(
≥
0.70 bar)
≥
0.07 MPa
(
≥
0.70 bar)
Max. heating circuit operating pressure
≤
0.3 MPa
(
≤
3.0 bar)
≤
0.3 MPa
(
≤
3.0 bar)
≤
0.3 MPa
(
≤
3.0 bar)
Min. heating mode flow temperature
25
℃
25
℃
25
℃
Max. heating mode target flow temperat-
ure with compressor
65
℃
65
℃
65
℃
Max. heating mode target flow temperat-
ure with auxiliary electric heater
75
℃
75
℃
75
℃
Min. cooling mode flow temperature
5
℃
5
℃
5
℃
