Section 14: Commissioning.
Commissioning ON/OFF
COMMISSIONING MUST BE CARRIED OUT BY A COMPETENT
REGISTERED ENGINEER (CORGI), ALSO TO BE USED WITH BURNER
COMMISSIONING DETAIL SEE BURNER INSERT.
1.
Visually check full system to see if it is in accordance with our manual and to
current / CORGI legislation and IEE regulations and to this manual.
2.
Check combustion air is adequate in plant room or surrounding area.
3.
Check contractors electrical wiring is correct & terminated tight and fuse
ratings are correct.
4.
Ensure that the gas pipe work is sized correctly and relative documents for
soundness & purging are available. It is the responsibility of the
commissioning engineer to check for soundness from the main inlet to
servicing stop tap on inlet of valve.
5.
Ensure that the inlet gas pressure is no greater than 75mb static and no less
than 17.5mb running.
6.
Make sure that all dampers are set and diffuser outlets are open to give correct
air flow and that the correct number of air by-pass blades have been removed
to by-pass the air in excess of our maximum amount of air through our heater,
which can be found in Section ‘Minimum and Maximum Air Volumes’ of this
Manual.
7.
Check with the controls engineer that he has an interlock with the supply fan &
burner so that the burner can not run without the supply fan e.g. Air pressure
switch across supply fan in series with our Enable circuit between T1 & T2.
The controls must keep the supply fans running on for 15 minutes after burner
shut down, on a shut down condition. The terminals 1 & 2 are also used to wire
stats and time switches in series to switch the burner on and off.
8.
Make sure that the stat, which is wired between terminals 1 & 2, is closed and
turn the main gas on to make the gas pressure switch and turn the
commissioning stop tap off. Switch the burner on, the burner should run
through its cycle and after the ignition spark goes out the burner should lockout
on flame failure on the burner control box.
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