Operating instructions

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Enerco Group, Inc. | Force-Air Propane Construction Heater Operating Instructions and Owner’s Manual 70176 Rev. D 04/08
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 well-grounded 115V, 60 Hz, 1Ø source
of power.
8. When using an extension cord, make certain that it is a
3-wire (grounded) cord of proper wire size.
START
1. Slowly open the main valve at propane cylinder to prevent
excess ow check valve from closing.
2. Set thermostat to full on. Heater will ignite automatically.
3. Adjust ball valve on control panel to desired burn rate.
4. Set thermostat to desired temperature. Heater will turn off
and on automatically as the temperature varies in the heater
area.
STOP
1. Securely close valve on the propane cylinder.
2. Continue to operate heater until all fuel in the hose has
burned.
3. Turn the heater thermostat to “off”. For extended shut down
or in areas where the temperature is below 0°F, unplug the
heater.
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 tting. If the “O” ring is cut, scuffed, or otherwise
damaged, replace it with part number 6681.
3. Turn off the gas at the LP-gas supply cylinder(s) when the
heater is not in use.
4. When the heater is to be stored indoors, the connection
between the LP-gas supply cylinder(s) and the heater must
be disconnected and the cylinder(s) removed from the heater
and stored out of doors and in accordance with Chapter 5 of
the standard for Storage and Handling of Liquefied Petroleum
Gases ANSI/NFPA 58 and CSA B149.1, Natural Gas and
Propane Installation Code.
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 ame is contained within the heater.
• The ame 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 tting (called a POL tting) 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 “specications”. 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.
In-warranty products will be repaired with no charge for
either parts or labor. Please include a brief statement
indicating date, place of purchase, the nature of the problem
and proof of purchase.
Out-of-warrranty products will be repaired with a charge for
parts and labor.
SIZE AND CAPACITY
OF PROPANE CYLINDERS
The charts below show the approximate size of the cylinder
required for these heaters. To use the chart:
1. Select the lowest air temperature expected (at the bottom of
the chart).
2. Move straight up to time of operation desired
(left side of the chart).
3. Read the cylinder size required.
All heaters should have: full cylinders
good air circulation
no frost on cylinders
Fuel Cyclinder Capacity: 100#