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

FILTER MAINTENANCE PROCEDURE

The filter is located inside front door of the CMA/CMC. Remove filter retaining rod and remove dirty filter. Clean the filter by vacuuming, rinsing with tap water, hosing or dipping in an ordinary detergent solution. After cleaning, replace the completely dry filter and retain with retaining rod. If the filter has a mesh, the mesh side of the filter must be towards the furnace.

FILTER REPLACEMENT

Should the filter require replacement, replace with like size and type filter as originally supplied with furnace.

IMPORTANT: Remind homeowner of importance of monthly filter inspections during the heating season to ensure efficient and trouble-free operation of their furnace.

VIII. TROUBLESHOOTING

NOTICE: BEFORE TROUBLESHOOTING, FAMILIARIZE YOURSELF WITH THE START UP AND CHECKOUT PROCEDURE.

ALL INSTALLATION AND SERVICES MUST BE PERFORMED BY QUALIFIED HEATING CONTRACTORS.

To assist you in troubleshooting this furnace, it is equipped with an integrated ignition control with diagnostics. These diagnostics evaluate what control system has experienced a failure and will activate a flashing light on the control in different sequences to help pinpoint the failure which has occurred.

Note – check diagnostic code through view port prior to removing access door.

DIAGNOSTIC FEATURES

The 50A65 control used on this furnace continuously monitors its operation and the operation of the system. If a failure occurs, the LED light on the control will flash a code. If the failure is internal to the control, the light will stay on continuously.

In this case, the entire control should be replaced, as the control is not field- repairable.

If the sensed failure is in the system (external to the control), the LED will flash in the following flash-pause sequences to indicate failure status (each flash will last approximately 0.25 seconds, and each pause will last approximately 2 seconds).

1 flash, then pause

system locked

2 flashes, then pause

pressure switch stuck closed

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Thermo Products CMC1-75DV3N, CMC1-50DV3N, CMC1-50D36N Filter Maintenance Procedure, Filter Replacement, Diagnostic Features
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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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