Thermo Products High Efficiency Gas Fired Furnaces Installation and Safety Manual
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GAS FIRED HIGH EFFICIENCY FURNACE

DOWNFLOW & DIRECT VENT (SEALED COMBUSTION)

MODELS:

CMA3-50D36N, CMA3-75D36N,

CMC1-50D36N, CMC1-75D36N,

CMC1-50DV3N, CMC1-75DV3N

INSTALLATION AND SERVICE MANUAL

For installation in:

1. Manufactured Homes

2. Modular Homes/Buildings

3. Site Constructed—Residential (Single Story Dwellings)

FOR YOUR SAFETY

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

•Do not try to light any appliance.

•Do not touch any electrical switch; do not use any phone in your building.

•Immediately call your gas supplier from a neighbor’s phone.

Follow the gas supplier’s instructions.

•If you cannot reach your gas supplier, call the fire department.

: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury, or loss of life.

: 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 fuel supplier.

: Do not use this appliance if any part has been underwater. Immediately call a qualified service technician to inspect the appliance and to replace any part of the electrical or control system that has been underwater.

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.

THERMO PRODUCTS, LLC.

POST OFFICE BOX 217

NORTH JUDSON, IN 46366

PHONE: (574) 896-2133

MG-517

ECN 5295-MA 140106

MADE IN USA

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Contents GAS Fired High Efficiency Furnace Table of Contents Section Safety Information Page Page Page Page Page Model II. Furnace SpecificationsCMC1-50D36 CMC1-75D36 CMC1-50DV3 CMC1-75DV3 Description QTY Installation Parts PackagesPage NON-COMBUSTIBLE Material Combustible MaterialModels CMA3/CMC1 IV. General Installation Furnace Location Coil Cabinet Model CE113S / CE213T Page Cottage Base Model 01COT Base for CMA3 models only Closet Installation Alcove InstallationCMA3 Series CMC1 Series Fuel Piping General Venting Requirements Maximum Vent Length Connecting the Exhaust Vent and Combustion AIR Intake Page Page Page Page Vent Terminal Location Guidelines Connecting the Furnace to Roof Vent / AIR Terminations Page Condensate Drain Line and Trap Assembly Electrical Branch Supply Circuit Electrical WiringAWG Blower Delay Settings Blower Motor Speed WiringCMA3-50D36 CMA3-75D36 CMC1-50D36 CMC1-75D36 CMC1-50DV3 CMC1-75DV3 Field Wiring and Replacing Wiring Starting the Unit Sequence of Operations END Cycle Operating Instructions Initial Start UPAdjustment of BTU Input Rate Burner Adjustment GAS Pressure Chart for CMA*/CMC* Model FurnacesSetting Temperature Rise Furnace Checkout Procedure VII. Dealer Maintenance VI. Installers Instructions to UserInducer Blower Assembly Condensate LINE/TRAP AssemblyElectrical General Inspection Vent Pipe Combustion AIR IntakeGASKETS/SEALING Materials Cleaning the Coil AIR SideHeat Exchanger House AIR BlowerFilter Replacement Filter Maintenance ProcedureDiagnostic Features LED will also flash once at power-up Setting Above AT the Integrated CONTROL? After GAS Valve OPENS, do Burners IGNITE? Is LED Light If LED Light Flashes FLASH, then Pause System Lockout Appendix a Replacement Parts Page Page Page Appendix B Wiring Diagrams

CMC1-75DV3N, CMA3-75D36N, CMA3-50D36N, CMC1-75D36N, CMC1-50D36N specifications

Thermo Products offers a versatile range of heating solutions that cater to various industrial and commercial applications. Among their popular models are the CMC1-75DV3N, CMC1-50DV3N, CMA3-50D36N, CMC1-50D36N, and CMC1-75D36N. Each model is engineered to deliver efficient performance and durability, making them ideal for meeting diverse heating needs.

The CMC1-75DV3N is tailored for high-capacity heating requirements, featuring advanced heating technology that ensures rapid and consistent heating. Its robust design includes high-efficiency burners, and the unit is built with durable materials for extended lifespan. This model is equipped with integrated safety mechanisms that prevent overheating and ensure reliable operation.

In contrast, the CMC1-50DV3N is designed for medium-sized applications, prioritizing both efficiency and cost-effectiveness. It includes automated controls to optimize energy usage while maintaining consistent temperature outputs. Its compact footprint makes it suitable for installations with space constraints, without compromising on heating performance.

The CMA3-50D36N model introduces enhanced energy management features, offering dynamic heating solutions. This model leverages advanced thermal technologies that aim to reduce energy consumption while maximizing heating output. Its versatile installation options allow users to adapt the unit to their specific space requirements seamlessly.

The CMC1-50D36N and CMC1-75D36N models are recognized for their adaptability across various applications. The CMC1-50D36N specifically caters to smaller heating needs, while the CMC1-75D36N serves larger spaces. Both units come equipped with user-friendly interfaces that simplify operation and adjustments, allowing for precise temperature control.

All models feature high-quality insulation and construction, helping to minimize heat loss and enhance system efficiency. They are designed with maintenance in mind, ensuring easier access to key components for service and repairs.

Through the incorporation of customizable settings, these models can suit the unique requirements of different environments, whether it be industrial facilities, commercial spaces, or residential buildings. With Thermo Products' commitment to innovation and quality, these heating solutions exemplify reliability, making them a solid choice for anyone in need of efficient heating technology.
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