Mr. Heater MH125LP - Manuel (Page 3)

INSTALLATION INSTRUCTIONS
GENERAL:
READ THESE INSTRUCTIONS CAREFULLY. Read and adhere
to these instructions. DO NOT allow anyone who has not
read these instructions to assemble, light, adjust or operate
this heater.
DO NOT attempt to operate the heater with any gas other
than that indicated on the heater nameplate.
For the U.S. and/or Canada, the installation of this appliance
must comply with local and/or Provincial codes or, in the
absence of these codes,
• With the (U.S.) National Fuel Gas Code, ANSI Z223.1 –
Latest Edition (for Natural and LP-Gas operation,
Models HS125NG, MH125LP, and HS125LP), and with
the (U.S) Standard for the Storage and Handling of
Liquefied Petroleum Gases, ANSI/NFPA 58 (for LP Gas
operation, Model MH125LP, HS125LP), or
• with the current (Canadian) CAN/CGA B149.1 AND
B149.2 INSTALLATION CODES.
This heater (including hose and regulator assembly if applicable)
must be inspected before each use and at least annually by a
qualified service person. If the hose for Model MH125LP/HS125LP
shows evidence of excessive abrasion or wear, or if the hose is
cut, it must be replaced prior to the heater being put into
operation. The replacement hose assembly shall be that specified
by the manufacturer. See the parts list.
LOCATION
The heater (and LP-Gas supply cylinder if applicable) must be
located on a hard, flat, level surface to minimize the risk of
accidental tipping. If an LP Gas supply cylinder is used (i.e. with
Model MH125LP/HS125LP), the cylinder should be adequately
restrained to prevent accidental tipping. DO NOT operate this
heater with the supply cylinder in any other than the
upright position.
This appliance must be installed only in locations where the
potential for physical damage to the appliance (i.e., due to
physical contact) is reduced to a minimum.
The installer must inform the owner/operator of this appliance
that precautions must be taken to protect the appliance from
physical damage.
This appliance produces radiant heat. Therefore, it must be
located at least six feet away from any LP-Gas container and
must not be directed toward any LP-Gas container within 20 feet.
The heater must be installed in a location such that it will not be
exposed directly to water spray, rain, and/or dripping water.
Use of this heater in a draft/windy area decreases its efficiency.
If possible, operate the unit in a draft free area.
PIPING
For Model MH125LP/HS125LP
(for use with LP-Gas)
This model may be connected to a self-contained LP-Gas
supply system using the hose and regulator assembly
supplied with the appliance, OR, it may be connected to a
permanently installed LP-Gas supply system.
If connected to a self-contained LP-Gas supply system, the
hose assembly must be inspected prior to each use of the
heater. If it is evident that there is excessive abrasion or
wear, or if the hose is cut, it must be replaced prior to the
heater being put into operation.
If connected to a self-contained LP-Gas supply system, the
cylinder must have no less than a minimum capacity of 20
pounds and no more than a maximum capacity of 100
pounds of LP-Gas. DO NOT connect this appliance to a
cylinder having less than a nominal 20 pounds capacity of
LP-Gas. DO NOT connect this appliance to more than one
(1) 100 pound cylinder.
WARNING
NEVER USE A FORK LIFT TRUCK TYPE
CYLINDER.
The connection of Model MH125LP/HS125LP 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/
NFPA 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.
3 Operating Instructions and Owner’s Manual Enerco Group, Inc. | Gas-Fired Infra-Red Portable Construction Heater