Pre-Commissioning Checks - Worcester GREENSTAR 24i Junior Installation Instructions Manual

5.2

PRE-COMMISSIONING CHECKS

CAUTION: ISOLATE THE MAINS
ELECTRICITY SUPPLY BEFORE STARTING
ANY WORK AND OBSERVE ALL RELEVANT
SAFETY PRECAUTIONS.
Check that the service and water pipes are connected to
the correct position on the manifold.
1.
2.
3.
Fig. 56 Pipe fittings
Ensure that the washers have been fitted to the water
connections and the bonded washer to the gas
connection on the manifold.
1. - CH Flow (22mm)
2. - DHW (15mm)
3. - Gas inlet (22mm)
4. - Domestic cold mains water in (15mm)
5. - CH Return (22mm)
B Check the gas type specified on the identification
plate (1), on the inside of the flap, matches that of the
gas supply.
Fig. 57 Identification plate
B Turn on the main gas supply, check the gas pipe work,
connections and rectify any leaks.
6 720 644 741a (2010/10)
4.
5.
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B Check that the condensate pipe (1) has been
connected to the syphon.
Fig. 58 Syphon connection
B Referring to figure 59, check pressure relief drain
pipe (1) is correctly fitted and securely tightened.
Fig. 59 Pressure relief drain pipe
NOTICE: If the boiler is not to be
commissioned immediately then, after
successfully completing all of the checks
and any rectification work:
B Close the gas valve
B Close the water shut off valve
B Isolate the gas supply
B Isolate the electricity supply
B Label appropriately
COMMISSIONING
1
7
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