Mr. Heater MH125LP Operations Instructions download pdf (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 LP-Gas operation, Model, MH125LP),

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

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

accidental tipping. If an LP Gas supply cylinder is used (i.e. with

Model MH125LP), 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 ef¯ciency. If

possible, operate the unit in a draft free area.

PIPING

For Model MH125LP (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

40 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 40 pounds capacity of

LP-Gas.

WARNING

NEVER USE A FORK LIFT TRUCK TYPE

CYLINDER.

The connection of Model MH125LP 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. Check local codes.

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.

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.

WARNING

NEVER USE A FLAME FOR GAS LEAK TESTING.

Operating Instructions and Owner’s ManualEnerco Group, Inc. | Gas-Fired Infra-Red Portable Construction Heater

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Mr. Heater MH125LP Operations Instructions Page 3

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