Vaillant geoTHERM SERIES Installation And Servicing

Also see for geoTHERM SERIES: System Installation Instructions Instructions for use Installation instructions Operating instructions

Installer_manual_OEM_Vaillant_PROTO_3_GB - 06/11 - Vaillant- 25 -Key1 Heat pump2 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 pump6 System of control by contact (contact characteristics: I>25ma,U=12VDC)S1: ON/Off input controls heating, heat pump activated if contactclosedS2: Input for heating mode, heating mode activated if contact closedS3: Input for Normal/Eco mode, ECO mode activated if contactclosed (see chapter "specific settings")S4: Input for Normal/Silence mode, silence mode activated ifcontact closed (see chapter "specific settings")7 Overheating safety (if underfloor heating)8 Additional circulator (*)8A Additional circulator commanded by a system of control by contact8b Additional circulator commanded by the heat pump9 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 ventingR4 Power relay for the boiler (*)A flow heat pump circuitb Return heat pump circuitC Connection for filling heat pump circuitD Return boiler circuitE flow boiler circuitf flow heating circuitG Return heating circuit(*) Not delivered with the applianceApplication conditions- 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 therate of humidity of the heating zones is not included and is atthe choice of the installer.geoTHERM45/1 65/1 75/1 125/1 155/1Minimum volume of theinstallation (l) 14 21 28 42 49Max volume of heat pump circuit,without additional vessel, fora water outlet temperature of35°C (l)65 65 65 95 95Volume of water in the heat pump 1 1 1.2 2.3 2.3Nominal water fl ow rate (m³/h) 0.7 1 1.2 2.1 2.5i For the dimensioning of the cables and the electricalprotection on the appliances, see the chapter"Electrical connection".b The boiler used in back-up must be equipped witha device limiting the water temperature at 65 ° C(radiator) or 53 ° C (underfloor heating).Adjusting the heat pump's command unit• To find out the description of each function,see the chapter "Specific adjustment".Menu Name of the function Value factory setting100 Type of system regulation 2 2101 Configuration of the command unit 0 0104 Test modes 0 0106 Configuration of the output between terminal channels 4 and N 1 1109 Threshold for protection against frost 0°C 0°C112 External calibrated adjustment graphs 1 - 12 8114 ECO heating mode 5°C 5°C126 Configurations exterior sensor 2 2146 Configuration for stopping the heat pump if control by S1 contact input 2 2147 Configuration of the output between terminal channels 5 and N 1 1148 Limit exterior temperature (T0) -10°C -20°C149 Choice of display in the command unit's temperature zone 1 1150 Exterior temperature bivalence point (T1) (To be defined) % 0°C151 Delays for switching on booster heating 20 minutes 20 minutes152 Differential stop/start booster heating 5°C 5°C153 Mode of activation hot-water demand contact S5 1 1154 Booster heating functioning 1 1155 Functioning of main circulator 0 1156 Configuration of the output between terminal channels 12 and N 2 2157 Functioning of the additional circulator 1 1INSTALLATION