7 Commissioning
7.1
General
Reference should be made to BS:EN 12828, 12831 & 14336 when com
missioning the boiler. Ensure that the condensate drain trap has been
primed.
At the time of commissioning, complete all relevant sections of the Bench
mark Checklist at the rear of this publication.
Open the mains water supply to the boiler and all hot water taps to purge
the DHW system.
Ensure that the filling loop is connected and open, then open the heating
flow and return valves on the boiler. Ensure that the cap on the automatic
air vent on the pump body is opened.
The system must be flushed in accordance with BS 7593 and the flushing
agent manufacturer’s instructions.
Pressurise the system to 1.5 bar then close and disconnect the temporary
filling loop except where a permanent loop is fitted.
Test for gas tightness, turn the gas supply on and purge according to GB
BS 6891 and in IE I.S. 813 "Domestic Gas Installations" .
7.2
Checklist before commissioning
7.2.1
Preliminary electrical checks
Note
Consideration must be given to Health & Safety Document 635
(The Electricity at Work Regulations, 1989).
Prior to commissioning the boiler preliminary electrical system checks
should be carried out.
These should be performed using a suitable meter, and include checks
for Earth Continuity, Resistance to Earth, Short Circuit and Polarity.
7.2.2
Checks
Checked:
That the boiler has been installed in accordance with these instructions.
The integrity of the flue system and the flue seals.
The integrity of the boiler combustion circuit and the relevant seals.
That the condensate trap has been primed.
7 Commissioning
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