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Mr. Heater | Gas-Fired Infra-Red Portable Construction Heater
Operating Instructions and Owner’s Manual
The connection of Model MH35LPTS to an LP-Gas cylinder must be
made in a well ventilated area using the regulator and hose
assembly supplied with the appliance. DO NOT attempt to adjust
this regulator. It has been preset at the factory to provide safe
and proper operation of the appliance. Use a 7/8” open end
wrench to connect the POL fitting (supplied with the LP
regulator) to the LP-Gas cylinder. Turn the POL nut in a counter-
clockwise direction (left hand thread) until tight. DO NOT use
pipe compound on POL threads.
The heater must be located at least six feet away from any LP-
Gas cylinder and must not be directed toward any LP-Gas
cylinder within 20 feet. If more than one heater is used, they and
the supply cylinders must be separated by at least 20 feet.
The gas supply must be turned off at the LP-Gas supply cylinder
when the heater is not in use.
When the heater is to be stored indoors, the connection
between the LP-Gas supply cylinder and the heater must be
disconnected and the cylinder removed from the heater and
stored in accordance with Chapter 5 of the Standard for the
Storage and Handling of Liquefied Petroleum Gases, ANSI/NF-PA
58 (U.S.), OR CAN/CGA B149.2 (Canada).
If connected to a permanently installed LP Gas supply system,
the system requires the use of a two-stage gas regulator
assembly which is normally provided by your LP-Gas dealer as
part of the LP-Gas supply system. Consult with your local LP-Gas
dealer for details concerning proper equipment and installation.
Piping must be clean and free from scale or burr.
Before attempting to ignite the appliance, all gas fittings and
connections must be thoroughly checked for gas leaks. Apply a
small amount of a mild soap and water solution to all fittings
and connections and observe for escaping bubbles. If any leaks
are detected, shut off the gas supply to the appliance
immediately. Wait a minimum of five minutes, repair the leak(s)
and retest for leakage. Dry all fittings and connections after leak
testing.
WARNING
NEVER USE A FLAME FOR GAS LEAK TESTING.
OPERATING INSTRUCTIONS
WARNING:
IF YOU DO NOT FOLLOW
THESE INSTRUCTION EXACTLY, A FIRE OR
EXPLOSION MAY RESULT CAUSING
PROPERTY DAMAGE, PERSONAL INJURY,
OR LOSS OF LIFE.
CAUTION
THIS APPLIANCE IS HOT DURING
NORMAL OPERATION. AVOID
PHYSICAL CONTACT.
CAUTION
DO NOT PLACE CLOTHING OR OTHER
COMBUSTIBLE MATERIALS ON THIS
APPLIANCE.
DO NOT operate this heater if any part has been under
water. Call a qualified service technician to inspect the
appliance and to
replace any part of the control system or gas
control valve which has been under water.
This appliance must be installed and operated only in locations
where the potential for physical damage to the appliance is
reduced to a minimum. The owner/operator of this appliance
must ensure that precautions are taken to protect the appliance
from physical damage.
LIGHTING AND SHUT-DOWN
Lighting the Heater:
1.
Before attempting to light the heater, smell all around
the heater area for gas. Be sure to smell next to the
floor because LP-Gas is heavier than air and will settle
on the floor. Turn on the gas supply to the appliance
and check all fittings and connections for gas leaks
using a mild soap and water solution. NEVER use a
match to check for gas leaks. Should a gas leak occur,
shut off the gas supply to the appliance immediately.
Wait a minimum of five minutes before repairing the
leak.
2.
Use only the fuel intended for this appliance. Check the
appliance rating plate for the correct fuel information.
3.
Turn off the main gas supply to the appliance. Wait five
minutes.
4.
Turn on the main gas supply.
5
Depress red spark ignition button repeatedly or with a
lighted match held to the burner face, depress and hold
the reset button on the safety valve. After the burner
ignites, hold the reset button depressed for about one
minute or until the burner stays lit when the reset button
is released.
DO NOT light the gas at the burner
orifice. DO NOT face heater when attempting to
light. Always stand to the side of the unit when
lighting.
NOTE: In cases where long runs of gas supply lines have been
installed ahead of the appliance, it may be necessary to bleed
trapped air out of the supply lines before lighting the burner.
New installations generally require bleeding of supply lines. Wait
a minimum of five minutes after bleeding the supply lines before
attempting to light the heater.
6.
IMPORTANT: DO NOT attempt to adjust the main
burner input using the main gas supply valve
, for this
may cause the thermocouple to shut down the burner.
