Table of Contents
Advertisement
FIRST FIRING OF WATER HEATER
It is quite normal for the water heater to produce some smoke, fumes and possible condensation
for the first thirty (30) minutes of firing from new.
Avoid breathing fumes. Vacate and ventilate area.
LIGHTING PROCEDURE
CAUTION
Do not use this heater if any part has been under water. Call a qualified service technician
immediately to replace any part or control system that has been under water.
Propane Gas is heavier than air and sinks to the ground, exercise extreme care in lighting the
water heater in confined areas.
STOP refer to "For Your Safety" on page 4.
This water heater is equipped with electronic ignition and a number of other features for automatic
operation.
1. Open the gas isolation valve at the inlet to the water heater.
STOP!
If you smell gas, follow the safety instructions. Refer to 'What To Do If You Can Smell Gas' on
page 26
If you do not smell any gas continue.
2. Ensure the pilot gas isolation valve is open.
Use only your hand to turn the pilot gas isolation valve.
Never use any tools. If the knob will not turn by hand do not try to repair it, call a qualified
service technician.
Force or attempted repair may result in a fire or explosion.
3. Ensure water heater is full of water.
4. Switch on electrical power to the water heater and ancillary equipment (if fitted).
5. The water heater will commence the start up sequence.
Note: The start up sequence will only commence if the thermostat is calling for heat and the flow
switch and all external interlocks (if fitted) are closed.
6. The fan will start and when the pressure switch is closed the pre-purge period (up to 30 seconds)
will commence.
7. The ignition sequence will commence following the pre-purge period, as follows:
Ignition of pilot burner (up to 5 seconds)
Proving of pilot flame (10 seconds)
Opening of main gas valves
Proving of main flame (2-5 seconds)
Extinction of pilot flame
Note: If the burner fails to light the water heater will lock out and the "red" reset light will illuminate,
except that for heaters with a nominal gas input less than 2000MJ/h the system will make one re-
ignition attempt following a further pre-purge period. To reset the water heater refer to 'Resetting The
Water Hater' on page 37.
OPERATION
28
Advertisement
Table of Contents
