Thermo Products CMA3-50D36N Electrical, General Inspection Vent Pipe Combustion AIR Intake

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

A.ELECTRICAL:

1.Check diagnostic code through view port prior to removing access door.

2.Check all wiring for loose connections and any signs of damage or unusual wear.

3.Check for correct voltage at the furnace when operating.

4.Check amp-draw on blower motor and inducer motor to assure they are not exceeding name plate amp rating.

5.Check for correct operation and proper settings (if manually adjustable) of all controls.

Shut off gas and disconnect power before continuing.

B.GENERAL INSPECTION

1.VENT PIPE COMBUSTION AIR INTAKE

a.Remove the vent and check the vent for signs of carbon build-up and for signs of blockage.

b.The entire length of vent and combustion air inlet pipe and their terminations should be inspected for restrictions, loose or loosely sealed joints, carbon build-up. Also inspect the outside vent and combustion air terminals and ensure that they are clear and unobstructed.

2.CONDENSATE LINE/TRAP ASSEMBLY

The condensate line must be inspected to make sure it is not blocked. All of the lines should be flushed with water to remove any build-up of sediment.

3. BURNERS

If it appears that material is accumulating in the burner box, the burner box cover can be removed and the box and burners can be vacuumed. (NOTE: The igniter

&flame sensor must be removed before removing the assembly.) If necessary, the burner assembly can be removed by taking out the two screws/one on each bracket at the bottom of the box. Assembly must be pulled & tilted away from the burner compartment in order to remove from box. If necessary, the individual tubes can be cleaned out by using compressed air.Care must be taken not to damage the igniter.

4. INDUCER BLOWER ASSEMBLY

Inspect the pressure switch and drain tubing connections and inspect the blower/assembly for warpage, deterioration and carbon or other build-up. If necessary, clean the accessible portions of the housing and blower with a damp cloth. Vacuum to remove any lint or dust from the motor assembly.

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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 Combustible Material NON-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 UserGeneral Inspection Vent Pipe Combustion AIR Intake Condensate LINE/TRAP AssemblyInducer Blower Assembly ElectricalHouse AIR Blower Cleaning the Coil AIR SideGASKETS/SEALING Materials Heat ExchangerFilter Maintenance Procedure Filter ReplacementDiagnostic 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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