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PRE-COMMISSIONING CHECKS
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 24 i junior/28 i junior
8 716 107 336b (11/05)
29
COMMISSIONING
A
E
B
C
D
22mm 15mm 22mm 15mm 22mm
1
2
3
F
J
PRE-COMMISSIONING
CHECKS
CAUTION: ISOLATE THE MAINS
SUPPLIES BEFORE STARTING ANY
WORK AND OBSERVE ALL
RELEVANT SAFETY PRECAUTIONS
1 Check that the service and water pipes are
connected to the correct position on the
manifold.
A - CH Flow (22mm)
B - CH Return (22mm)
C - Gas inlet (22mm)
D - DHW (15mm)
E - Water in (15mm)
2 Check the gas type specified on the
identification plate (F) matches that of the
gas supply. Turn on the main gas supply,
check the gas pipework, connections and
rectify any leaks.
3 Check that the condensate pipe has been
connected to the syphon.
4 Check pressure relief drain pipe (J) is
correctly fitted and securely tightened.
IMPORTANT: If the boiler is not to be
commissioned immediately then:
after successfully completing all of the
checks and any rectification work,
close the gas and water valves, shut off
the gas supply and electrically isolate
the boiler and label appropriately.
A D C E B