Gas Supply - Jetfire J8 Operating & Maintenance Manual

If the heater is run continuously on full output frost might form on the GAS cylinder indicating it is starting to "FREEZE". This condition is caused by
excessive vapour withdrawal and can be overcome by using various sizes of cylinders or multiple cylinder combinations.
To minimise the "FREEZING" effect we suggest our heaters be connected to a minimum size and quantity of Gas cylinders as follows:
• J8/15
1 X 9KG CYLINDER
• J25/33
1 X 45KG CYLINDER
• J50/70/90
3 X 45KG CYLINDERS
UNDER NO CIRCUMSTANCES SHOULD THE HOT AIR FLOW FROM THE HEATER BE DIRECTED TOWARDS THE GAS CYLINDER TO
AVOID THIS "FREEZING".
WARNING: Propane Gas Cylinders must be installed and stored in accordance with current local requirements.
Propane Gas Cylinders should always be installed connected and replaced in a flame free atmosphere.
Use Propane vapour off-take cylinders only.
INSTALLATION (All Models)
1. Identify your unit from the model description on the serial number label affixed to the heater and the exploded views contained in this manual.
(ALL NUMBERED REFERENCES APPLY TO EXPLODED VIEW OF UNIT)
2. Connect gas supply hose (13) to gas cock nipple on heater (14). Make sure the gas supply hose is not under torsional stress as this may
damage the hose.
3. Connect gas pressure regulator pol adaptor nut (10) to GAS cylinder. NOTE connection has Left Hand Thread.
4. Check gas connections, turn on gas supply and test for leaks. (See Maintenance and Fault Finding Procedures).
5. Connect Power Plug (18) to Mains Power Outlet.
6. A/AS MODELS. Check that the Phase Indicator Light (73) is not on. If it is on it means that the phase is inverted either in the power outlet or in
the extension cord being used and will cause the unit to go into 'lock out' after the ignition cycle. Please contact an authorised electrician to
rectify the extension cord/power outlet so that the light is off.
OPERATING INSTRUCTIONS (Manual Models)
TO START & USE
1. Turn Gas Supply on at Cylinder.
2. Turn gas cock (15) to the Open position.
3. Turn power switch (16) to On position. Ensure fan is rotating.
4. Depress gas relay valve knob (22) and at the same time
depress piezo ignitor knob (17) repeatedly until ignition has
occurred. Maintain the gas relay knob depression for a
minimum of 30 seconds after which the burner will remain lit
and the heater is in normal operation.
5. WHERE FITTED. Adjust the Regulator (38) to the desired
setting.
TO STOP (NORMAL OPERATION)
1. Turn gas cock (15) to the closed position.
2. After allowing the fan only to run for 5 minutes for cool-down
turn the power switch (16) to the Off position.
3. Turn Gas Supply off at Cylinder
4. Remove the electrical plug from the mains power socket.
TO STOP (EMERGENCY SHUTDOWN)
1. Turn power switch (16) to the Off position
2. Turn gas supply off at the Cylinder
3. Turn gas cock (15) to the Closed position
4. Remove the electrical plug from the mains power socket.
5. Make sure that before restarting the heater the cause of the
emergency has been rectified/removed.
Note: If the Heater is not to be used for a long period of time disconnect from power supply and gas bottle.
OPERATING INSTRUCTIONS – SUMMER VENTILATION (ALL MODELS)
1. Turn power switch (16) to the On position. (On A/SA models, turn power switch to the FAN position). After use turn to Off position and remove
plug from electrical outlet.
NOTE: Do not connect Gas Supply when the heater is being used as a summer ventilator.
4

GAS SUPPLY

( Minimum only – increase bottle size/number if using in low temperatures)
( Minimum only – increase bottle size/number if using in low temperatures)
( Minimum only – increase bottle size/number if using in low temperatures)
INSTALLATION AND OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS (Automatic Models)
TO START & USE
1. Turn gas supply on at Cylinder.
2. Turn gas cock (15) to the Open position.
3. WHERE FITTED. This unit can be fitted with a thermostat. If
required please contact your service agent for further
information. Set operating temperature to the desired position
on the thermostat.
4. Turn power switch (16) to the Flame position. This will start the
ignition cycle for the electronic flame control box which after a
pre-purge period will allow gas flow and automatically ignite.
5. WHERE FITTED. Adjust the Regulator (38) to the desired
setting.
TO STOP (NORMAL OPERATION)
1. Turn power switch (16) to the Fan position. After allowing the
fan only to run for 5 minutes for cool-down turn to Off position.
2. Turn gas cock (15) to the Closed position
3. Turn gas supply off at the Cylinder
4. Remove the electrical plug from the mains power socket.
TO STOP (EMERGENCY SHUTDOWN)
1. Turn power switch (16) to the Off position.
2. Turn gas supply off at the Cylinder.
3. Turn gas cock (15) to the Closed position.
4. Remove the electrical plug from the mains power socket.
Make sure that before restarting the heater the cause of the
5.
emergency has been rectified/removed