Potterton Osprey CF 125, Installation & Service Instructions Manual, Page: 14 / 30

Installation - Page 14
Fig. 10
2.2 Connect the Gas Supply
1. Ensure that the gas supply is isolated.
2. Connect the gas supply to the gas cock using a 22mm
copper pipe, sliding it in from the back panel to the gas
cock.
The pipe diameter required will depend on the boiler
model and the pipe length from the gas meter. Ensure
that the gas supply pipe is selected in accordance with
BS 6891 so that an adequate gas supply to the boiler is
provided.
Do not turn the gas supply on at this stage.
2.3 Connect the Water System
1. Connect system pipework to the boiler. Arrange
pipework to ensure correct venting of pipes and boiler.
The pipe diameter required will depend on boiler model
and system design and may not be the same as boiler
flow and return tappings.
Note: Drain off taps should be installed at the lowest
points in the system.
The flow and return pipes on the boiler are made of steel
with a conical 11/4/" male thread.