Roberts Gorden CTCU 27 - Manual (Page 21)

SECTION 10: C OMMISSIONING
15
SECTION 10: COMMISSIONING
Installation, service, commissioning and annual
inspection of the heater must be done by a
contractor qualified in the installation and service of
gas-fired heating equipment. Read this manual
carefully before installation, commissioning,
operation, or service of this equipment. All
components are accessed via the door secured by 4
sheet metal screws. Opening the door exposes live
electrical connections and hot components.
10.1 Pre-Commission Checks
All pre-commission checks must be carried out
before lighting the heater.
Ensure that the heater and all controls are suitable
for the gas, pressure and electrical supply to which
they are to be connected.
10.1.1 Louvres
Where fitted, the air delivery louvres need to be set
during commissioning to give the required air
distribution (optional vertical louvres).
10.1.2 Electrical Checks
All pre-commission checks must be carried out
before commissioning the heater.
1. Check that all site wiring is connected in
accordance with the appropriate wiring diagram
on Page 14, Section 9.3.
2. Check the correct fuse size is fitted;
See Page 13, Section 9.1.
10.1.3 Gas Supply
All aspects of the gas installation including the gas
meter must be inspected, tested for soundness and
purged in accordance with local and national codes.
Ensure that the air is fully purged from the heater
inlet pipe up to the main gas valve inlet test nipple.
10.1.4 Mechanical Checks
1. Check that the fan is free to run and
delivery louvres are turned to give required air
deflection.
2. Check that the flue (and air intake for room
sealed) is installed in accordance with these
instructions and local regulations.
NOTE: The limit thermostat is sealed at the factory
and is not adjustable.
10.2 Begin Commissioning
10.2.1 Before Operating the Heater
To ensure that all the controls are in safe working
order, operate the heater for the first time with the
isolating gas valve turned off.
1. Turn off the isolating gas valve.
2. Using the installed external control, turn on the
burner. The automatic sequence will now begin
as described on Page 16, Figure 9.
There will be no ignition of the burner and lockout
will occur, which proves the controls are operating
correctly.
WARNING
Electrical Shock Hazard
Use extreme caution while commissioning.
Failure to follow these instructions can result in
death or electrical shock.
WARNING
Cut Hazard
Turn off gas and electrical supply before maintenance.
Fan can start automatically at any time.
Failure to follow these instructions can result in severe
injury or product damage.