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WARNING

SEALED COMBUSTION

DOWNFLOW GAS FURNACE
MODELS: 

G18D SERIES, 

SIZES: 60, 70, 77, 90                                                             

FOR INSTALLATION IN:

 MANUFACTURED (MOBILE)                                                              

HOMES, RECREATIONAL VEHICLES, PARK MODELS,                                                                           

MODULAR HOMES AND BUILDINGS.

 GENERAL INFORMATION

These down flow sealed combustion furnaces install in 

Manufactured Homes, Recreational Vehicles or Modular 

Construction. The furnaces conform to Part 3280 (a)(2) 

of HUD Manufactured Homes Construction and Safety 

Standards. They must be installed only with listed RJ-Roof 

Jack, Sealed Combustion venting system.

NOTE:

 These instructions are intended to assist qualified 

individuals experienced in the installation of heating 

equipment.         

Some state and local codes require installation 

personnel to be licensed. Read all instructions before 

starting the installation.

 SAVE THIS MANUAL

NOTICE

 – Furnace set-up and any adjustment needed is 

responsibility of the installer/retailer/ contractor and is 

not covered by the furnace manufacturers warranty.

CHECKLIST: FURNACE START-UP

1. Has furnace roof jack crown been correctly installed.

2. Has the furnace gas valve and burner orifice 

  been cleaned.

3. Is the gas line outlet pressure set for the fuel used.

4. If the home uses a crossover air connector duct, is it

    installed per home builders installation instructions.

5. Has furnace been operated through complete 

  heating cycle.

RISK  OF  FIRE  OR  ELECTRICAL  SHOCK

Only  qualified  service  personnel  shall  be  used  to 

install  and  provide  maintenance  of  this  furnace.

CONTENTS 

PAGE 

General Information...........................................1

Specifications ...................................................2

Safety Conditions ..............................................3

Installation Standards .........................................3

High Altitude Installation ....................................3

Installation Clearances .......................................3

Return Air ...................................................... 4-5

Alcove & Closet Installation ................................5

Air Distribution Systems ......................................6

Duct Connector/Base .........................................6

Install Furnace ...................................................7

Roof Jack Selection ............................................7

Cut Opening & Install Roof Jack ..........................8

Installing In Snow Regions ..................................8

Roof Jack On High-Pitch roof ...............................8

Connect Power Supply Wires ..............................9

Wall Thermostat ................................................9

Connect Thermostat Wires ..................................9

Gas Piping .................................................. 9-10

High Altitude Deration Chart .............................11

Final Procedure ...............................................12

Furnace & Air Conditioner Installation ................12

Blower Performance Chart ................................13

Wiring Diagrams ....................................... 14-16

INSTALLATION INSTRUCTIONS

CAUTION: READ ALL SAFETY GUIDES 

BEFORE INSTALLING THIS GUIDE

Gas-Fired

LISTED

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Installation Instructions 

MGD-B SERIES GAS FURNACE

 

Heat Controller, Inc.

SAVE THIS MANUAL

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Содержание MGD60-E3B

Страница 1: ...INSTALLATION INSTRUCTIONS Manufactured Home Downflow Gas Furnace MGD B Series Heat Controller Inc 1900 Wellworth Ave Jackson MI 49203 517 787 2100 www heatcontroller com...

Страница 2: ...d 2 Has the furnace gas valve and burner orifice been cleaned 3 Is the gas line outlet pressure set for the fuel used 4 If the home uses a crossover air connector duct is it installed per home builder...

Страница 3: ...Heat Controller Inc MGD B SERIES GAS FURNACE Installation Instructions 2...

Страница 4: ...performance INSTALLATION STANDARDS CODE COMPLIANCE The installer shall become familiar with and follow all local codes and regulations which govern the installation of this furnace Where applicable lo...

Страница 5: ...en located in the floor or ceiling of the manufactured home leading into the closet is to be not less than that of the opening specified on the appliances rating plate 4 The total free area of opening...

Страница 6: ...tallation Instructions MGD B SERIES GAS FURNACE Heat Controller Inc Mortex Products Inc Fort Worth TX 76106 G18D Installation Instructions 5 G18D Series Gas Furnace INSTALLATION INSTRUCTIONS RETURN AI...

Страница 7: ...Installation Instructions Mortex Products Inc Fort Worth TX 76106 G18D Installation Instructions G18D Series Gas Furnace INSTALLATION INSTRUCTIONS 6 DUCT CONNECTOR BASE INSTALLATION AIR DISTRIBUTION...

Страница 8: ...jACk The roof jack body should be secured to the furnace before the roof flashing is secured to the roof 1 Insert roof jack body into opening in the roof 2 From above canter the roof jack body alignin...

Страница 9: ...Heat Controller Inc MGD B SERIES GAS FURNACE Installation Instructions 8...

Страница 10: ...3 Connect low voltage wires to the wall thermostat GAS PIPING Supply piping must be sized in accordance with recommendations found in National Fuel Gas Code ANSI Z223 1 NFPA 54 In addition materials u...

Страница 11: ...e compartment for full instructions If the gas input to the furnace ie too high due to excessive pressure wrong size burner orifice no orifice high altitude etc the burner flame will be sooty especial...

Страница 12: ...LL SIZE SEA LEVEL 75AG 086 0 086 44 75AG 0935 0 0935 42 75AG 096 0 096 41 75AG 104 0 104 37 2000 75AG 082 0 082 45 75AG 0935 0 0935 42 75AG 0935 0 0935 42 75AG 1015 0 1015 38 3000 75AG 082 0 082 45 75...

Страница 13: ...ir conditioning is installed 2 Check to make sure that electrical power is on at the furnace and the furnace breaker has not tripped 3 Make sure that the filters are clean and return grills are not ob...

Страница 14: ...Installation Instructions MGD B SERIES GAS FURNACE Heat Controller Inc 13...

Страница 15: ...6 6 6 6 6 6 1250 23 5 7 21 20 867 21 5 6 7 72 26 20 867 21 5 6 7 678 26 0 7 6 7 23 1 6 9 9 1 5 7 12 25 7 6 6 5 9 56 32 5 7 2 5 02725 8 0 25 0 2 HEAT ONLY MODELS A C READY MODELS WIRING DIAGRAM G18D G1...

Страница 16: ...RING DIAGRAM FLASH CODES 6 1 7 21 85 6 6 67 21 6 6 6 6 6 6 1250 23 5 7 21 20 867 21 5 6 7 72 26 20 867 21 5 6 7 678 26 0 7 6 7 23 1 6 9 9 1 5 7 12 25 7 6 6 5 9 56 32 5 7 2 5 02725 8 0 25 0 2 WIRING DI...

Страница 17: ...04 2009 7 2009...

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