Roberts Gorden UHD[X][S][R] 125 Operation and Maintenance, Pre-Start-Up Checks, Electrical Checks

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 gas-fired heating equipment or your gas supplier.

Turn off gas and electrical supplies before performing service or maintenance.

Failure to follow these instructions can result in death, injury or property damage.

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 24, Figure 13.

There will be no ignition of the burner and lockout will occur, which proves the controls are operating correctly.

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 pre-start-up 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 Electrical Checks

1.Check that all site wiring is connected in accordance with the appropriate wiring diagram on Page 20, 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.

23