Location Of Pressure Sensing Tubes; Pipe Connections; Profile 30E And 40E; Profile 50E, 60E And 80E - Potterton Profile 30e Installation And Servicing Instructions

INSTALLATION INSTRUCTIONS - Page 15
FIG. 19 LOCATION OF PRESSURE
SENSING TUBES
Slide the flue elbow into the flue duct and locate the flange over
the studs on the fluehood ensuring that the sealing gasket is in
place. Secure the elbow to fluehood using the four brass
securing nuts. Reconnect flexible tubes to elbow. ENSURE
THEY ARE NOT KINKED. NOTE: Red tube connects the front
aluminium tube in upper chamber to the lower connection on
elbow, each being identified with a red ring.
FIG. 20A PROFILE 30e and 40e
WARNING: UNDER NO CIRCUMSTANCES SHOULD A 'REDUCING SET' BE FITTED
Supplied By www.heating spares.co Tel. 0161 620 6677
FIG 20. PIPE CONNECTIONS
Connect system pipework to the boiler, compression fittings
should be used. If however capillary fittings are used it is
essential to temporarily remove the thermostat bulb from the
flow pipe before soldering. A drain off tap should be installed
close to the boiler if it is in a low point of the system.
On combined gravity hot water/pumped central heating
installations the flow and return pipes for both the gravity hot
water circuit and pumped central heating circuit must be
connected to tees fitted directly to the flow and return pipes on
the boiler.
The gravity circuit should be installed in 28mm copper pipe.
28mm tees should be used on 50e, 60e & 80e boilers and
22mm tees on 30e & 40e boilers expanding to 28mm on the
gravity circuit as close to the tee as possible.
The injector disc (accessory pack H) must be positioned in the
pumped return branch of the tee and the pipes connected to the
tees as illustrated in Figs. 20, 20A and 20B. Two discs are
provided, one to suit a 22mm tee and one to suit a 28mm tee.
Use the appropriate disc and discard the other.
Connect the gas supply pipe to the inlet of the gas cock. Ensure
that the gas cock is in a position where it can be easily operated
when the controls cover is removed.
FIG. 20B PROFILE 50e, 60e and 80e.