Vaillant geoTHERM SERIES Installation And Servicing - page 23
Installer_manual_OEM_Vaillant_PROTO_3_GB-06/11-Vaillant
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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
- Commandunitusedasconfigurationtool(seethechapter
"Appliancelocation"),
- Installationwithunderfloorheating(<53°C)orlow-
temperatureradiator(<60°C),
- Thesystemformanagingtheambienttemperatureandthe
rateofhumidityoftheheatingzonesisnotincludedandisat
thechoiceoftheinstaller.
geoTHERM
45/1 65/1 75/1 125/1 155/1
Minimum volume of the
installation (l)
14
21
28
42
49
Max volume of heat pump circuit,
without additional vessel, for
a water outlet temperature of
35°C (l)
65
65
65
95
95
Volume of water in the heat pump
1
1
1.2
2.3
2.3
Nominal water fl ow rate (m³/h)
0.7
1
1.2
2.1
2.5
i
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".
i
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
i
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"
i
To improve slightly Heat Pump working time the two
coils of Aurostor tank could be connected in series
Adjusting the heat pump's command unit
• Tofindoutthedescriptionofeachfunction,seethechapter"Specificadjustment".
Menu
Name of the function
Value
factory setting
100
Type of system regulation
2
2
101
Configuration of the command unit
0
0
106
Configurationoftheoutputbetweenterminalchannels4andN
1
1
112
External calibrated adjustment graphs
1 - 12
8
114
ECO heating mode
5°C
5°C
126
Configurationsexteriorsensor
2
2
146
ConfigurationforstoppingtheheatpumpifcontrolbyS1contactinput
2
2
148
Limit exterior temperature (T0)
-20°C
-20°C
150
Exterior temperature bivalence point (T1)
(To be defined) °C
0°C
151
Delays for switching on booster heating
20 minutes
20 minutes
152
Differential stop/start booster heating
5°C
5°C
153
Modeofactivationhot-waterdemandcontactS5
1
1
154
Boosterheatingfunctioning
1
1
155
Functioningofmaincirculator
1
1
156
Configurationoftheoutputbetweenterminalchannels12andN
2
2
157
Functioningoftheadditionalcirculator
1
1
INSTALLATION