PRESSURE RELIEF PIPEWORK
PRESSURE RELIEF PIPEWORK:
IMPORTANT: The pressure relief valve is a safety device for the boiler and if activated may discharge boiling water steam through the relief valve drain pipe.
Care should be taken when siting the outlet pipe so that it does not cause an obstruction or discharge above a window, entrance or other public access where it could cause a hazard.
• The pressure relief drain pipe (M) from the
boiler should be at least 15mm diameter copper pipe and run downwards away from any electrics or other hazard, preferably to an external drain or soakaway.
• Pipe (M) should be finished with a partial bend, near the outlet to face the external wall (as shown) to help prevent freezing.
M
L - Outside wall
O,M - Drain pipe
N - External drain
L
O
N
PRE - INSTALLATION
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INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 24 i junior/28 i junior 8 716 107 336b (11/05)
