OPERATING INSTRUCTIONS
PREPARING FOR OPERATION
1.Check the heater for possible shipping damage. If any is found, immediately notify the factory.
2.Follow all of the "Precautions".
3.Connect the POL fitting of hose and regulator assembly to the propane cylinder by rotating the POL nut counterclockwise into the propane cylinder's valve outlet and securely tighten with a wrench.
4.Connect the hose to the heater by rotating the hose fitting clockwise.
5.Securely tighten all gas connections.
6.Open the cylinder's gas valve and check all gas connections with a soap and water solution. DO NOT USE A FLAME.
7.Connect power cord to
8.When using an extension cord, make certain that it is a
START
1.Before heater ignition, always allow heater fan (blower) to run for 20 seconds to purge fuel.
2.Slowly open the main valve at propane cylinder.
3.Depress the fuel valve button to light the 55FAV, 85FAV and 125FAV models.
4.After the heater lights, keep the gas valve button depressed for 15 seconds then release and the heater will continue to operate.
5.Adjust burn rate by setting control knob to desired level.
6.Igniter continues to fire as long as power cord is plugged in. a) Igniter sparks continually.
7.No thermostat usable with these units.
STOP
1.Securely close valve on the propane cylinder.
2.Continue to operate heater until all fuel in the hose has burned.
3.Unplug the power cord.
RESTART AFTER SAFETY SHUTDOWN
1.Securely close valve at propane cylinder. Unplug heater.
2.Wait 5 minutes.
3.Restart following "Start" procedure.
MAINTENANCE AND STORAGE
1.The heater should be inspected before each use, and at least annually by a qualified person.
2.Before each use, check the soft "O" ring seat at the bullnose of the POL fitting. If the "O" ring is cut, scuffed, or otherwise damaged, replace it with part number 73786.
3.Turn off the gas at the
4.When the heater is to be stored indoors, the connection between the
SERVICING
A hazardous condition may result if a heater is used that has been modified or is not functioning properly. When the heater is working properly:
•The flame is contained within the heater.
•The flame is essentially blue with perhaps some yellow tipping.
•There is no strong disagreeable odor, eye burning or other physical discomfort.
•There is no smoke or soot internal or external to the heater.
•There are no unplanned or unexplained shut downs of the heater.
The parts lists and wiring diagram show the heater as it was constructed. Do not use a heater which is different from that shown. In this regard, use only the hose, regulator and cylinder connection fitting (called a POL fitting) supplied with the heater. IMPORTANT Match the color stripe on the hangtag attached to the hose assembly with the color on the label located near the propane inlet fitting on the heater. Do not use alternates. For this heater, the regulator must be set as shown in "specifications". If there is any uncertainty about the regulator setting, have it checked.
A heater which is not working right must be repaired, but only by a trained, experienced service person.
Heater Elevation Adjustment
This heater is equiped with an elevation adjustment panel located at the exhaust end of the control box.
1.Do not adjust the heater combustion tube elevation while heater is running or hot. Adjustments to elevation should only be made after the heater has cooled to touch.
2.To adjust the heater combustion tube elevation, turn the adjustment screw knob counterclockwise and lift the combustion tube to desired position.
Enerco Group, Inc. Forced Air Propane Construction Heater | 6 | Operating Instructions and Owner’s Manual | 70056 Rev. C 4/07 |