SECTION 10: OPERATION AND MAINTENANCE
SECTION 10: OPERATION AND MAINTENANCE
WARNING
Explosion Hazard
Installation, service and annual inspection must be done by a contractor qualified in the installation and service of
Turn off gas and electrical supplies before performing service or maintenance.
Failure to follow these instructions can result in death, injury or property damage.
Read this manual carefully before installation, operation, or service of this equipment. All components are accessed via the door secured by four sheet metal screws. Opening the door exposes live electrical connections and hot components.
10.1 Pre-Start-Up Checks
All
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 Electrical Checks
1.Check that all site wiring is connected in accordance with the appropriate wiring diagram on Page 18, Section 9.3.
10.1.2 Gas Supply
All aspects of the gas installation including the gas meter must be inspected, tested for gas tightness 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.
10.1.3 Mechanical Checks
1.Check that the flue (and air intake for separated combustion units) is installed in accordance with these instructions and local regulations.
10.2 Begin Start-Up
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 and power supply turned on.
1.Turn off the isolating gas valve.
2.Turn up the thermostat above room
temperature. The automatic ignition sequence will now begin as described on Page 22, Figure 11.
There will be no ignition of the burner and lockout will occur, which proves the controls are operating correctly.
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