Schematics Legend - Vaillant VRC 700 Schematics And Installation Manual

Schematics Legend

01 Boiler
03e Secondary Circulation Pump
03f General Pump
05 uniSTOR DHW Cylinder
08c DHW Inlet Safety Group
08e Heating / DHW Expansion Vessel
09b Zone Valve
09d Bypass Valve
10c Non-return Valve
10h Low Loss Header
10j Magnetic Filter
11 Immersion Heater
12 System Controller / Thermostat - VRC 700
12a Zone Thermostat - VR 91
12d Wiring Centre - VR 70
12e Wiring Centre - VR 71
12g EBUS Coupler - VR32/3
12K High Limit Cut Out
Domestic Cold Water
Domestic Hot Water
Heating Flow
Heating Return
Cooling Flow
Cooling Return
Glycol Flow
Glycol Return
230/400V Wire
Low Voltage Sensor Wire
Low Voltage eBUS
Low Voltage Demand Signal
eBUS +
eBUS -
Indicates Cable Junction
Indicates No. of cable cores
12l Cylinder Thermostat
12m Outdoor Temperature Sensor
12p Wireless Reciever
12q VR 921 Gateway
12s DPDT Relay (3rd Party)
BUS
BUS
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