Checking The Gas Rate; Domestic Hot Water - Worcester 41-311-67 Installation, Commissioning And Servicing Instructions

5.5.2

CHECKING THE GAS RATE

B The gas rate should be measured at the gas meter
after 10 minutes operation at maximum.
See technical data section at the front of this manual.
B Where a gas meter is not available (e.g. L.P.G.) the
CO/CO must be checked to the units shown in the
2
setting of the air/gas ratio, refer to section 6.6.
B If pressure and gas rate are satisfactory press the
service button again and the boiler will return to
normal operation.
– If left in the service mode the control will return to
normal operation after 15 minutes.
B Close the gas isolation valve.
B Remove the manometer.
B Re-seal the screw in the gas inlet pressure test point.
B Open the gas isolation valve.
B Ensure that there are no gas leaks.
B Replace the outer case.
5.5.3

DOMESTIC HOT WATER:

Controlling the hot water temperature:
NOTICE: Domestic Hot Water
B The hot water temperature can only be
controlled when the "Optional diverter
valve" kit is fitted.
The hot water temperature can be set to between
approximately 40°C and 60°C using the DHW
temperature control.
6 720 644 743a (2010/10)
COMMISSIONING
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