Gas Connection; Flue Connection; Electrical Connections - Vaillant VCW 2O Instructions For Installation And Servicing

a
45 Gcconnection
Frt the gas service cock (5) to the appliance.
Cleil out all foreign matter from the gas
s.Dpty pipe before connecting to the
service cock!
Connect the gas supply pipe to the service cock
and tighten.
4.6 Flue connection (open flued)
Insert flue into the draught diverter after fitting
the adapter provided.
A split socket connector must be fitted to
ensure easy disconnection of the flue to
simplify removal of the main heat exchanger.
21 . Flue pipe
22. Draught diverter
22.aCollar otthe draught diverter
24. Adapter
25. Splitsocketconnector
4.7 Electrical connections
Vaillant combi boilers are completelywired. lt is
only necessary to connect the electrical mains
and the room thermostat. Connectto220/240v
50 Hz. electrical sgpply fused 3 A.
Warning!This appliance must be earthed.
After removing the terminal box cover connect
the mains to the terminal (c) of the appliance in
the manner indicated below. A cardboard
label showing the correct mains connection to
the terminals is in the terminal box. Please
remove before connecting.
Do not connect the electrical supply to the
pump terminals (b).
Full wiring diagrams for various control
schemes are shown intig.21 Io 24.
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