WARNING: Improper installation, adjustment, altera- tion, service or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult a qualified installer, service agency or the gas supplier.

WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provi- sions for adequate combustion and ventilation air must be provided. Refer to Air for Combustion and Ventilation section on page 5 of this manual.

This appliance may be installed in an aftermarket,* per- manently located, manufactured (mobile) home, where not prohibited by local codes.

This appliance is only for use with the type of gas indi- cated on the rating plate. This appliance is not convert- ible for use with other gases.

*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

State of Massachusetts: The installation must be made by a licensed plumber or gas fitter in the Commonwealth of Massachusetts.

Sellers of unvented propane or natural gas-fired supplemental room heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit.

Vent-free gas products are prohibited for bedroom and bathroom installation in the Common- wealth of Massachusetts.

TABLE OF CONTENTS

Safety Information

3

Troubleshooting

25

Product identification

4

Specifications

29

Local Codes

5

Wiring Diagram

29

Unpacking

5

Technical Service

29

Product Features

5

Service Hints

29

Air for Combustion and Ventilation

5

Replacement Parts

29

Installation

8

Illustrated Parts Breakdown and Parts List

30

Operating Heater

20

Accessories

34

Inspecting Burners

23

Warranty Information

Back Cover

Cleaning and Maintenance

24

 

 

 

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Desa LMFP33PR(A) installation manual Table of Contents