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DOWNFLOW & DIRECT VENT (SEALED COMBUSTION)
INSTALLATION AND SERVICE MANUAL
PLEASE READ THESE INSTRUCTIONS PRIOR TO INSTALLATION, INITIAL FIRING, AND BEFORE
PERFORMING ANY SERVICE OR MAINTENANCE. THESE INSTRUCTIONS MUST BE LEFT WITH THE USER
AND SHOULD BE RETAINED FOR FUTURE REFERENCE BY QUALIFIED SERVICE PERSONNEL.
VEUILLEZ LIRE CES INSTRUCTIONS AVANT L'INSTALLATION, LA MISE À FEU INITIALE ET AVANT TOUT
ENTRETIEN OU MAINTENANCE. CES INSTRUCTIONS DOIVENT ÊTRE LAISSÉES À L'UTILISATEUR ET
DOIVENT ÊTRE CONSERVÉES POUR RÉFÉRENCE ULTÉRIEURE PAR UN PERSONNEL DE MAINTENANCE
QUALIFIÉ.
MG-1065
ECN 5633-MA 220124
GAS-FIRED FURNACE
MODELS:
GMA1-60D48N, GMA1-75D48N
GMC1-60D48N, GMC1-75D48N
For installation in:
1. Manufactured Homes
2. Modular Homes/Buildings
THERMO PRODUCTS, LLC.
POST OFFICE BOX 237
DENTON, NC 27239
PHONE: 800- 476-4328
MADE IN USA
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Table of Contents
Troubleshooting
Related Manuals for Thermo Pride GMA1-60D48N
Summary of Contents for Thermo Pride GMA1-60D48N
- Page 1 GAS-FIRED FURNACE DOWNFLOW & DIRECT VENT (SEALED COMBUSTION) MODELS: GMA1-60D48N, GMA1-75D48N GMC1-60D48N, GMC1-75D48N INSTALLATION AND SERVICE MANUAL For installation in: 1. Manufactured Homes 2. Modular Homes/Buildings PLEASE READ THESE INSTRUCTIONS PRIOR TO INSTALLATION, INITIAL FIRING, AND BEFORE PERFORMING ANY SERVICE OR MAINTENANCE. THESE INSTRUCTIONS MUST BE LEFT WITH THE USER AND SHOULD BE RETAINED FOR FUTURE REFERENCE BY QUALIFIED SERVICE PERSONNEL.
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Page 3: Table Of Contents
All installations and services must be performed by qualified service personnel. Contents SECTION PAGE Notice to the Installer INSTALLATION GUIDELINES General Installation Standard Clearances Combustion Air Furnace Location Furnace and Air Conditioning Installation Alcove Installation Closet Installation Roof Jack Combustible Floor Base Coil Cabinet Gas Piping Electric Wiring... -
Page 4: Notice To The Installer
All installations and services must be performed by qualified service personnel. NOTICE TO THE INSTALLER any components thereof, or improper installation of the furnace in the field. Furthermore, any such field Installation of this gas-fired furnace must be performed by a modifications VOID THE WARRANTY and place qualified installer in accordance with all local codes and responsibility for safe and reliable operation of the... -
Page 5: Combustion Air
The minimum clearances from furnace to combustible installed parallel to the evaporator coil a damper must be materials installed at the furnace base to prevent cold air from being discharged up around the heat exchanger. MODELS: GMA1-60D48N CLOSET ALCOVE GMA1-75D48N (IN.) (IN.) -
Page 6: Alcove Installation
All installations and services must be performed by qualified service personnel. ALCOVE INSTALLATION In this application, a minimum of 18 inches of clearance The return air opening into the closet is to have a must be provided to the front of the unit. Refer to Figure minimum free area of 250 square inches, (refer to Figure 4). -
Page 7: Coil Cabinet
All installations and services must be performed by qualified service personnel. tabs will need to be bent down, locate the locating bracket with the tabs inside the back of the floor opening. See Figure 6. Place the connector duct in the floor opening. Determine which position the plenum angles best fit to the duct opening, cut opening and plenum angles as needed. -
Page 8: Electric Wiring
All installations and services must be performed by qualified service personnel. Piping from the propane tank to the furnace must follow the recommendations of the gas supplier. In the Room Thermostat absence of local codes governing gas piping selection A room thermostat must be connected to the Furnace and installation, follow the National Fuel Gas Code, control. -
Page 9: Adjustment Of Heat Input
All installations and services must be performed by qualified service personnel. TABLE 3 c WARNING: Heat exchanger oil will burn off on FORMULA: initial firing creating an unpleasant odor. To prevent this odor from occurring more than once, it is !"... -
Page 10: Burner Adjustment
All installations and services must be performed by qualified service personnel. in sizing the proper orifice. Thermo Products should be connected to the “Heat” terminal on the Engineering Department will gladly assist in sizing the integrated furnace control, with one of the higher speed orifice if you provide them with the heating value in BTU blower leads attached to a terminal marked “Park”. -
Page 11: Service
All installations and services must be performed by qualified service personnel. inspect the furnace at the start of each heating season. 8 RED flashes - Too many flame dropouts detected Inform the user of the frequency of inspection required 9 RED flashes – Not Used for reach item in the User Information Section of this 10 RED flashes –... -
Page 12: Trouble Shooting Flow Chart
All installations and services must be performed by qualified service personnel. TROUBLESHOOTING GUIDE THE SYSTEM IS STARTED BY SETTING THE THERMOSTAT TO CALL FOR HEAT. THE FOLLOWING SHOULD HELP ESTABLISH THE TYPE OF MALFUNCTION OR DEVIATION FROM THE NORMAL OPERATION. TO USE THIS DIAGRAM, YOU JUST NEED TO FOLLOW THE INSTRUCTIONS IN THE BOXES. - Page 13 All installations and services must be performed by qualified service personnel. IS THERE LINE VOLTAGE CHECK THE INTEGRATED ACROSS INDUCER POWER CONTROL DIAGNOSTIC LED TERMINALS "IND" & "IND N" LAMP. RESET BY INTERRUPTING AT THE INTEGRATED CONTROL? POWER TO CONTROL FOR MORE THAN ONE SECOND.
- Page 14 All installations and services must be performed by qualified service personnel. AFTER GAS VALVE CHECK FOR PROPER ADJUST TO 3.5" FOR NATURAL GAS OPENS, DO THE MANIFOLD PRESSURE. OR 10.0" WC FOR LP GAS BURNERS IGNITE? IS IGNITOR REPOSITION TO POSITIONED CORRECTLY? CORRECT LOCATION.
- Page 15 All installations and services must be performed by qualified service personnel. DOES SYSTEM RUN UNTIL IS LED LIGHT CHECK ALL THERMOSTAT IS SATISFIED? ON INTEGRATED WIRING FOR CONTROL FLASHING? LOOSE CONNECTIONS. DOES BURNER SHUT OFF CHECK FOR SHORT IN WIRE TO WHEN THERMOSTAT IS THERMOSTAT AND CORRECT SATISFIED?
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Page 16: Maintenance
All installations and services must be performed by qualified service personnel. MAINTENANCE: Vent pipes should also be inspected for any signs of corrosion, deterioration, or leakage that may cause A qualified heating contractor should perform the combustion by-products to infiltrate the home or indoor following maintenance procedures at the beginning environment. -
Page 17: Filter Cleaning
All installations and services must be performed by qualified service personnel. VENT CONNECTOR: The furnace vent pipe should be FILTER LOCATION AND CLEANING inspected for signs of rust, corrosion pitting, or holes in the pipe. Check for leakage around seams in pipe c CAUTION: To avoid injury from moving part, hot indicated by soot or condensate streaks. -
Page 18: Appendix A: Replacement Parts
All installations and services must be performed by qualified service personnel. APPENDIX A – REPLACEMENT PARTS GMA1 SERIES... - Page 19 All installations and services must be performed by qualified service personnel. GMA1 SERIES...
- Page 20 All installations and services must be performed by qualified service personnel. GMC1 SERIES...
- Page 21 All installations and services must be performed by qualified service personnel. GMC1 SERIES...
- Page 22 All installations and services must be performed by qualified service personnel. GMA1/GMC1 SERIES – BURNER ASEMBLY...
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Page 23: Appendix B: Electrical Diagrams
All installations and services must be performed by qualified service personnel. APPENDIX B – WIRING DIAGRAM REVISE... -
Page 24: Appendix D: Specification Sheets
APPENDIX C – SPECS GMA1-60 ALTERATIONS REQ’D FOR A/C @ DESIGN EXTERNAL STATIC PRESSURE Recommended CLG COOLING UNIT Speed Speed 24,000 30,000 MEDIUM LOW 36,000 MEDIUM HIGH 42,000 MEDIUM HIGH 48,000 HIGH Furnace Airflow (CFM) vs. External Static pressure (in. WC.) Speed Tap \ Static Pressure... - Page 25 GMA1-75 ALTERATIONS REQ’D FOR A/C @ DESIGN EXTERNAL STATIC PRESSURE Recommended CLG COOLING UNIT Speed Speed 24,000 MED LOW 30,000 MED LOW MEDIUM LOW 36,000 MED LOW MEDIUM HIGH 42,000 MED LOW MEDIUM HIGH 48,000 MED LOW HIGH Speed Tap \ Furnace Airflow (CFM) vs.
- Page 26 GMC1-60 ALTERATIONS REQ’D FOR A/C @ DESIGN EXTERNAL STATIC PRESSURE Recommended CLG COOLING UNIT Speed Speed 24,000 30,000 MEDIUM LOW 36,000 MEDIUM HIGH 42,000 MEDIUM HIGH 48,000 HIGH Speed Tap \ Furnace Airflow (CFM) vs. External Static pressure (in. WC.) Static Pressure 1309...
- Page 27 GMC1-75 ALTERATIONS REQ’D FOR A/C @ DESIGN EXTERNAL STATIC PRESSURE Recommended CLG COOLING UNIT Speed Speed 24,000 MED LOW 30,000 MED LOW MEDIUM LOW 36,000 MED LOW MEDIUM HIGH 42,000 MED LOW MEDIUM HIGH 48,000 MED LOW HIGH Speed Tap \ Furnace Airflow (CFM) vs.