Vaillant geoTHERM SERIES Installation And Servicing page 25

Key
1 Heat pump
2 Power supply and electrical protection for the heat pump (*)
3 Power supply and electrical protection for the boiler (*)
4 boiler (*)
5 Command unit for the heat pump
6 Shut-off valve (*)
7 Overheating safety (if underfloor heating)
8 Additional circulator (*)
9 buffer tank (*) (if necessary)
10 flush vent (*)
11 Pressure-gauge (if necessary) (*)
12 Anti-sludge filter (*)
13 filling valve (*)
14 Air venting
R5 Power relay for the boiler (*)
A flow heat pump circuit
b Return heat pump circuit
C Connection for filling heat pump circuit
D Return boiler circuit
E flow boiler circuit
f flow heating circuit
G Return heating circuit
(*) Not delivered with the appliance
• To find out the description of each function,
see the chapter "Specific adjustment".
Menu Name of the function
100 Type of system regulation
101 Configuration of the command unit
104 Test modes
106 Configuration of the output between terminal channels 4 and N
109 Threshold for protection against frost
112 External calibrated adjustment graphs
126 Configurations exterior sensor
148 Limit exterior temperature (T0)
149 Choice of display in the command unit's temperature zone
150 Exterior temperature bivalence point (T1)
151 Delays for switching on booster heating
152 Differential stop/start booster heating
153 Mode of activation hot-water demand contact S5
154 Booster heating functioning
155 Functioning of main circulator
156 Configuration of the output between terminal channels 12 and N
157 Functioning of the additional circulator
158 Differential on the temperature setting from the ambient air
Installer_manual_OEM_Vaillant_PROTO_3_GB - 06/11 - Vaillant
- Command unit used as room thermostat (see the chapter
"Appliance location"),
- Installation with underfloor heating (< 53°C) or low-
temperature radiator (<60°C),
- A single zone for regulating heating.
Minimum volume of the
installation (l)
Max volume of heat pump circuit,
without additional vessel, for
a water outlet temperature of
35°C (l)
Volume of water in the heat pump
Nominal water fl ow rate (m³/h)
i
b
Adjusting the heat pump's command unit
Application conditions
45/1 65/1
14 21
65 65
1 1
0.7 1
For the dimensioning of the cables and the electrical
protection on the appliances, see the chapter
"Electrical connection".
The boiler used in back-up must be equipped with
a device limiting the water temperature at 65 ° C
(radiator) or 53 ° C (underfloor heating).
Value
4
1
0
1
0°C
1 - 12
2
-10°C
1
(To be defined) °C
20 minutes
5°C
1
1
0
2
1
0.3°C
INSTALLATION
geoTHERM
75/1 125/1 155/1
28 42 49
65 95 95
1.2 2.3 2.3
1.2 2.1 2.5
factory setting
2
0
0
1
0°C
8
2
-20°C
1
0°C
20 minutes
5°C
1
1
1
2
1
0.3°C
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