Operating Instructions; Storage & Service - Mr. Heater MH400FAVT Operating Instructions And Owner's Manual

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 flow 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 fitting. If the "O" ring is cut, scuffed, or
otherwise damaged, replace it with part number
73786.
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.
Enerco Group, Inc. | Force-Air Propane Construction Heater
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.
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-warranty 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 with good air circulation and no frost on cylinders
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Operating Instructions and Owner's Manual