Vaillant geoTHERM SERIES Installation And Servicing page 27

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 System of control by contact (contact characteristics: I>25ma,
U=12VDC)
S1: ON/Off input controls heating, heat pump activated if contact
closed
S2: Input for heating mode, heating mode activated if contact closed
S3: Input for Normal/Eco mode, ECO mode activated if contact
closed (see chapter "specific settings")
S4: Input for Normal/Silence mode, silence mode activated if
contact closed (see chapter "specific settings")
7 Overheating safety (if underfloor heating)
8 Additional circulator (*)
8A Additional circulator commanded by a system of control by contact
8b Additional circulator commanded by the heat pump
9 buffer tank (*) (if necessary)
10 flush vent (*)
11 Shut-off valve (*)
12 Shut-off valve (*)
13 Shut-off valve (*)
14 Shut-off valve (*)
15 Pressure-gauge (if necessary) (*)
16 Anti-sludge filter (*)
17 filling valve (*)
18 Air venting
R4 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
114 ECO heating mode
126 Configurations exterior sensor
146 Configuration for stopping the heat pump if control by S1 contact input
147 Configuration of the output between terminal channels 5 and N
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
Installer_manual_OEM_Vaillant_PROTO_3_GB - 06/11 - Vaillant
- Command unit used as configuration tool (see the chapter
"Appliance location"),
- Installation with underfloor heating (< 53°C) or low-
temperature radiator (<60°C),
- The system for managing the ambient temperature and the
rate of humidity of the heating zones is not included and is at
the choice of the installer.
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
2
0
0
1
0°C
1 - 12
5°C
2
2
1
-10°C
1
(To be defined) %
20 minutes
5°C
1
1
0
2
1
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
5°C
2
2
1
-20°C
1
0°C
20 minutes
5°C
1
1
1
2
1
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