Thermo Products CMC1-75D36N, CMC1-50DV3N, CMC1-50D36N, CMA3-50D36N, CMA3-75D36N, CMC1-75DV3N

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All installations and services must be performed by qualified service personnel.

: Copper and brass tubing and fittings (except tin lined) shall not be used if the gas contains more than a trace (0.3 grains per 100 cubic ft.) of hydrogen sulfide gas. Check with your gas supplier.

: TURN OFF THE ELECTRICAL POWER to the furnace before attempting to change blower speed wiring.

: Turn off power to furnace before it is placed into service. The gas piping system must have been leak tested by a qualified heating contractor in accordance with State, Local and National Codes including the National Fuel Gas Code NFPA 54/ANSI-Z233.1 (Latest Edition).

: It may be necessary to purge the air out of the gas line for initial start- up of the furnace after installation. This should be done by a qualified heating contractor. If excessive gas escapes when purging the gas supply at the union, allow the area to ventilate for at least 15 minutes before attempting to start the furnace. LP gas is especially dangerous because the specific gravity of LP gas allows it to accumulate at floor level at a dangerous concentration.

: Heat exchanger oil will burn off on initial firing creating an unpleasant odor. To prevent this odor from occurring more than once, it is suggested that:

1.A window(s) be opened.

2.The thermostat set at highest setting.

3.The furnace remain running at conditions 1&2 above for 15 minutes or until odor has dissipated.

: The CMA/CMC furnace models are of direct vent design and do not require an air shutter adjustment (air shutters are not used) for proper flame characteristics. Burner box access cover must always be secured with all screws in place and tightened before operating furnace.

: Personal injury or property damage could result from repair or service of this furnace by anyone other than a qualified heating contractor.

: Label wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

: The inducer motor mounting plate gasket and the collector box gasket must be replaced if they show any sign of having been damaged.

: Power must be disconnected before servicing.

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Contents GAS Fired High Efficiency Furnace Table of Contents Section Safety Information Page Page Page Page Page II. Furnace Specifications ModelCMC1-50D36 CMC1-75D36 CMC1-50DV3 CMC1-75DV3 Installation Parts Packages Description QTYPage Models CMA3/CMC1 Combustible MaterialNON-COMBUSTIBLE Material IV. General Installation Furnace Location Coil Cabinet Model CE113S / CE213T Page Cottage Base Model 01COT Base for CMA3 models only Alcove Installation Closet 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 Wiring Electrical Branch Supply CircuitAWG Blower Motor Speed Wiring Blower Delay SettingsCMA3-50D36 CMA3-75D36 CMC1-50D36 CMC1-75D36 CMC1-50DV3 CMC1-75DV3 Field Wiring and Replacing Wiring Starting the Unit Sequence of Operations END Cycle Initial Start UP Operating InstructionsAdjustment of BTU Input Rate GAS Pressure Chart for CMA*/CMC* Model Furnaces Burner AdjustmentSetting Temperature Rise Furnace Checkout Procedure VI. Installers Instructions to User VII. Dealer MaintenanceCondensate LINE/TRAP Assembly Inducer Blower AssemblyElectrical General Inspection Vent Pipe Combustion AIR IntakeCleaning the Coil AIR Side GASKETS/SEALING MaterialsHeat Exchanger House AIR BlowerDiagnostic Features Filter Maintenance ProcedureFilter Replacement 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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