Mr. Heater MHT 45 Operating Instructions And Owner's Manual

Mr. Heater MHT 45 Operating Instructions And Owner's Manual

Gas-fired, low-intensity infrared heaters

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READ INSTRUCTIONS CAREFULLY: Read and follow all instructions. Place instructions in a safe place
for future reference. Do not allow anyone who has not read these instructions to assemble, light,
adjust or operate the heater.
Gas-Fired, Low-Intensity Infrared Heaters
approved for residential Garage/Commercial Applications
WARNING:
Improper installation, adjustment, alteration, service or maintenance
can cause injury or property damage. Refer to this manual. For assistance or
additional information consult a qualified installer, service agency or the gas supplier.
— WHAT TO DO IF YOU SMELL GAS
Open Windows
DO NOT try to light any appliance.
DO NOT use electrical switches.
DO NOT use any telephone in your house. Immediately call your local gas supplier from a
neighbor's telephone. Follow the gas supplier's instructions.
Do not touch any electrical switch; do not use any phone in your building.
supplier.
If you cannot reach your gas supplier, call the Fire Department.
FOR YOUR SAFETY:
Do not store or use gasoline or other flammable vapors and liquids in the vicin-
ity of this or any other appliance.
WARNING: If the information in these instructions are not followed exactly, a fire or
explosion may result causing property damage, personal injury or loss of life.
OPERATING INSTRUCTIONS
AND OWNER'S MANUAL
Enerco Group, Inc., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 216-916-3000
Model #
MHT 45
01/05 Revision L1 #02853

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Summary of Contents for Mr. Heater MHT 45

  • Page 1 WARNING: If the information in these instructions are not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. Enerco Group, Inc., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 216-916-3000 Model # MHT 45 01/05 Revision L1 #02853...
  • Page 2: Table Of Contents

    Section 7 TROUBLESHOOTING ... 20 Section 8 ILLUSTRATED PARTS ... 22 WARRANTY ... 24 INSTRUCTIONS FOR ORDERING PARTS ... 24 Mr. Heater | Gas-Fired Low-Intensity Infrared Heater WARNING: FIRE, BURN, INHALATION, AND EXPLOSION HAZARD. KEEP SOLID COMBUSTIBLES, SUCH AS BUILDING...
  • Page 3: Before You Begin

    Section 1 INTRODUCTION About The Heater The MHT 45 is a factory-assembled, gas fired, low-intensity heating system. The system has been designed for easy installation and will provide years of economical operation and trouble-free service. Not only is infrared heat efficient, it also provides the most comfortable conditions in open areas, such as garages.
  • Page 4: About The Heater

    Point at which the gas supply is connected to the heater. Power Cord Includes a three prong plug that must be connected to a dedicated and properly grounded three prong ceiling outlet. Mr. Heater | Gas-Fired Low-Intensity Infrared Heater Exhaust Vent Power Cord Front Fixed Hanger...
  • Page 5: Heater Specifications

    Minimum - Inlet 1 1.0” w.c. Maximum – Inlet 13.0” w.c. Manifold pressure Natural Gas: 4.0” w.c. LP Gas (propane): 10.0” w.c. Mr. Heater | Gas-Fired Low-Intensity Infrared Heater Length 1" Max. Suspension Points - Side View - Leading Particulars Model No.
  • Page 6: Where Can The Heater Be Installed

    The installer must give this manual to the owner. Mr. Heater | Gas-Fired Low-Intensity Infrared Heater Section 2 pLANNING General This section provides the following information: •...
  • Page 7: Venting Requirements

    Heater must be exhausted outside. Use materials supplied. Failure to follow these instructions will result in death or injury. Mr. Heater | Gas-Fired Low-Intensity Infrared Heater ATTENTION Risque de monoxyde de carbone L echappement du radiateur doit s’effectuer a l’exterieur.
  • Page 8: Section 3 Installation

    Wire strippers • Staple gun • Level • Pliers Mr. Heater | Gas-Fired Low-Intensity Infrared Heater Installation Materials Materials required for the installation of theMHT tube heater include at a minimum the following: • High temperature silicone sealant • Suspension hooks (capable of supporting 150 pounds each) •...
  • Page 9: Horizontal Installations

    It is important to keep the minimum required safe distances from combustibles at all times to avoid death, personal injury or property Mr. Heater | Gas-Fired Low-Intensity Infrared Heater damage. Clearances from vehicles parked beneath heaters must be maintained. Signs should be posted to identify any possible violation of the clearance distances form the heater in the vehicle areas.
  • Page 10: Horizontal Installation

    Residential garages come in a variety of sizes, shapes, styles and methods of construction. Because of all these variables, it is not possible to include mounting hardware with the Mr. Heater MHT heater. Although wooden rafters and joists are the most common overhead structural members in residential garage applications, other structural configurations are also illustrated below.
  • Page 11 4. Slide the bulkhead and reflector assembly forward until it stops on the long nuts. Using the (4) 5/16-18 X 1/2" long screws form the (02876) bolt kit secure the bulkhead to the burner box. Mr. Heater | Gas-Fired Low-Intensity Infrared Heater USE CAUTION AS NOT TO OVERTIGHTEN ASSEMBLY AS IT...
  • Page 12: Typical Installation

    A reference to the following footnote: “Clearance in accordance with local installation codes and the requirements of the gas supplier.” Mr. Heater | Gas-Fired Low-Intensity Infrared Heater Section 4 VENTING This appliance is certified under the ANS/CSA Standard for Vented Gas-Fired Space Heating Appliances.
  • Page 13 5. Joints between sections of piping shall be fastened by sheet metal screws or other approved means. Mr. Heater | Gas-Fired Low-Intensity Infrared Heater The seams along the length of the piping and the joints between sections of piping should be sealed to prevent a potential leakage of flue gas into building.
  • Page 14: General Requirements

    Subtract 10 feet for each elbow beyond 15 feet from the heater. d) Subtract 15 feet for each elbow within 15 feet of the heater. Mr. Heater | Gas-Fired Low-Intensity Infrared Heater NOTE: To minimize problems associated with condensation in long runs, vent pipe can be insulated.
  • Page 15: Horizontal Venting

    Vent terminal should be installed at a height sufficient to prevent blockage by snow. e) Building materials should be protected from degradation by flue gases. Mr. Heater | Gas-Fired Low-Intensity Infrared Heater Single Wall Single wall vent run Single wall terminal end...
  • Page 16: Outside Combustion Air Supply

    In colder climates, where necessary, insulate the fresh air duct. Avoid locating the fresh air duct directly above the control box. Provide a capped cleanout T as necessary. Mr. Heater | Gas-Fired Low-Intensity Infrared Heater VERTICAL THROUGH THE ROOF Vent Cap (Leslie VersaCap) 3"...
  • Page 17: System Requirements

    N’utilliser aucun cable de rallonge. Le non-respect de ces consignes peut entrainer mort ou electrocution. Mr. Heater | Gas-Fired Low-Intensity Infrared Heater CAUTION Label all wires prior to disconnection when servicing controls. wiring errors can cause improper and dangerous operation.
  • Page 18: Section 5 Operation

    The appliance will go through expansion and contraction during a heating cycle. Section 5 OpERATION Mr. Heater | Gas-Fired Low-Intensity Infrared Heater Supplied by others Flex Pipe Operating Instructions and Owner’s Manual...
  • Page 19: Section 6 Maintenance

    For best performance, the following maintenance procedures should be performed by a qualified service agency before each heating season: Mr. Heater | Gas-Fired Low-Intensity Infrared Heater 1. A qualified service agency should be contacted for service other than routine maintenance.
  • Page 20: Section 7 Troubleshooting

    DSI module needs to be reset. Faulty igniter or ignition wire. Air switch does not operate. Igniter spark gap incorrect. Mr. Heater | Gas-Fired Low-Intensity Infrared Heater Try This…. Plug power cord into a grounded three prong Outlet. Increase thermostat temperature setting.
  • Page 21: Burner Does Not Light

    Possible Cause Damaged wires between DSI module and electrode. Faulty DSI module Damaged Electrode Mr. Heater | Gas-Fired Low-Intensity Infrared Heater Try This…. Purge gas lines. Check gas inlet pressure at the 1/8” NPT plugged tap. Gas inlet pressure should be as follows: Natural Gas: 5.0”w.c.
  • Page 22: Section 8 Illustrated Parts

    02837 05795 05747 02795 02814 02810 08364A 02806 02822 02812 0281 1 Mr. Heater | Gas-Fired Low-Intensity Infrared Heater DESCRIpTION HST-35 Spark Electrode Ignition Wire Orifice (MHT 45 NG) Orifice (MHT 45 LP) Sight Window Blower Motor Ignition Module Transformer...
  • Page 23 Mr. Heater • Model #MHT 45 Tube Heater REpLACEMENT pARTS LIST FOR HEATER MODEL MHT TUBE HEATER REF.# ITEM# DESCRIpTION F202850 MHT-45NG F202851 MHT-45LP F106250 MHT45 06014 Hanger 06016 Hanger Clamp 06008-9 MHT-45 06009 Reflector End Cap ALL WARRANTY CLAIMS REQUIRE pROOF OF pURCHASE Mr.
  • Page 24: Warranty

    This Warranty gives you specific legal rights, and you may have other rights which vary from state to state. Mr. Heater reserves the right to make changes at any time, without notice or obli- gation, in colors, specifications, accessories, materials and models.

This manual is also suitable for:

Hst45

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