Vaillant geoTHERM SERIES Installation And Servicing page 23

7.1 Electrical booster element
7.2 Cylinder Thermostat with integrated thermal cut out
7.3 Immersion heater with thermostat and intégrated thermal cut out
8 Command unit for the heat pump (**)
9 Additional circulator (*)
9A Additional circulator controlled by a system of management by
contact
9b Additional circulator commanded by the heat pump
10 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")
11 Overheating safety (if underfloor heating)
12 flush vent (*)
13 Air venting
14 buffer tank (*) (if necessary)
15 Shut-off valve (*)
16 backflow preventer + filling valve (*)
17 Electric heating booster (*)
18 Expansion chamber (*) (if necessary)
19 Anti-sludge filter (*)
20 Safety valve (*)
21 Pressure-gauge (*)
22 3-channel valve (with return spring) for the domestic hot water tank,
L10 = domestic hot water position (*)
23 Shut-off valve (*)
R15 Power relay for the heating booster (*)
A flow heat pump circuit
b Return heat pump circuit
C flow domestic hot water
D Domestic cold water inlet
E flow heating circuit
f Return heating circuit
G Connection for filling heat pump circuit
H Discharge from the safety valve to a container for recovering glycol
water solution
(*) Not delivered with the appliance
(**) To find out the description of each auroSTOR components, see the
auroSTOR manual.
(***) for technical detail about these components see chapter " Hot
domestic water controller function and components description"
Application conditions in heating mode
- Command unit used as configuration tool (see the chapter
"Appliance location"),
• 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
106 Configuration of the output between terminal channels 4 and N
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
148 Limit exterior temperature (T0)
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
- 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
i
i
i
Adjusting the heat pump's command unit
45/1
14
65
1
0.7
Highlighted cable section on electric diagram: 2.5mm².
For the dimensioning of the other cables and the
electrical protection on the appliances, see the chapter
"Electrical connection".
The back up heater must be equipped with an
overheat safety device with manual resseting the
overheat safety device must be approved according EN
60730-2-9 and his trigerring tested with and without
water inside the back up heater.
Application conditions in Domestic hot water mode
Timer relay:
the time delay must be adjusted as follows:
- 30 mn for low inertia heating installation (radiators)
- 60mn for high inertia heating installation (floor
heating)
- For technical informations details and specific
adjustments about hot domestic water installation see
chapter "Domestic Hot water controler function and
components description"
To improve slightly Heat Pump working time the two
coils of Aurostor tank could be connected in series
Value
2
0
1
1 - 12
5°C
2
2
-20°C
(To be defined) °C
20 minutes
5°C
1
1
1
2
1
INSTALLATION
geoTHERM
65/1 75/1 125/1 155/1
21 28 42 49
65 65 95 95
1 1.2 2.3 2.3
1 1.2 2.1 2.5
factory setting
2
0
1
8
5°C
2
2
-20°C
0°C
20 minutes
5°C
1
1
1
2
1
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