Operating instructions

1104UESAGBEN, page 21/31
10. OPERATION
10.1 Check installa-
tion
Check installation
prior to start-up
 Check suspension. Unit must be secure.
 Check clearances from combustibles. Requirements are in section 5.
 Check fl ue system to ensure it is installed according to the instructions
in section 7, fl ueing requirements.
 Check piping for leaks and proper gas line pressure. Bleed gas lines of trapped
air.
 Check condensate drain system to be sure that it is installed according to the
instructions in part 6.2.
 Check electrical wiring and ensure that wiring conforms with the wiring dia-
gram. Ensure all wire sizes meet requirements.
 Check polarity. Verify that line voltage exists between the black “L1” and earth
ground.
 Verify that the appliance is earthed by conducting an earth continuity test.
10.2 Heater Start-up
WARNING
For your safety, follow
the instructions exactly
otherwise damage or
injury could occur.
 This heater does not have a pilot fl ame. It is equipped with an ignition device
which automatically lights the burner. Do not try to light the burner by hand.
 Before operating, smell all around the heater area for gas. Be sure to smell
next to the fl oor because propane gas is heavier than air and will settle near the
fl oor.
 Do not use this appliance if any part has been subjected to water ingress. Im-
mediately call a qualifi ed service technician to inspect the appliance and to
replace any part of the control system and any gas control.
 When overheating occurs or when gas supply is not turned off, shut the manual
service valve before turning off the electric power.
10.3 Operating in-
structions & operat-
ing sequence
1. Set thermostat to lowest setting.
2. Turn off all electrical power to the heater.
3. Shut the manual service valve at the inlet of the unit.
4. Wait fi ve (5) minutes for any gas to evacuate the heater. Then smell for gas,
including near the fl oor. If you smell gas, STOP! and follow
the steps in the WARNINGS printed on page 5. If you do not smell gas, pro-
ceed to the next step.
5. Turn on the electric power to the heater.
6. Open the manual service valve at the inlet of the unit.
7. If fi tted, ensure that a time switch is set to an ‘ON’ period.
8. Adjust the thermostat to the required setting (must be above current room
temperature).
Note :
If the appliance does not operate, follow the instructions “To turn off gas sup-
ply at the appliance” printed below and call your service technician.
9. Thermostat calls for heat, energyzing the venter motor.
10. When adequate air fl ow for combustion is proven by an air proving switch
and a prepurge period has elapsed, the integral ignitor and multifunctional
gas control operate. The ignition spark ignites the gas creating the burner
fl ame.
11. Burner fl ame is sensed by a fl ame rod sensor and when the heat exchanger
is warmed up (+/- 30 seconds) and the fan control relay closes, the fan motor
is energized.
12. If the fl ame is extinguished during the main burner operation, the integrated
control system closes the main valve and attempts to relight the burner. The
unit will attempt 5 ignitions before entering a “lock out” mode. Lock out is
indicated by the red warning light on the heater. To end this mode push on the
reset switch.
13. To turn the heater ‘OFF’ for short periods : adjust the room thermostat to its
low est setting or ‘OFF’. The fan will continue to run to cool the heater and
then switch off automatically.
14. To turn the heater ‘OFF’ for long periods : see ‘To turn off gas supply at the
appliance’ below.