Maximum Vent Length

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

VENT SIZE			2 IN. PVC
FURNACE	VENT	EXHAUST	COMBUSTION AIR INTAKE
MODEL	LENGTH	VENT	ELBOWS (NO.)
	(FT.)	ELBOWS
		(NO.)
CMA/CMC	30	8*	7**

*Note the drain elbow supplied with furnace count as 1 elbow.

**Note the two 45° elbows supplied with furnace count as 1 elbow.

Table 2

6.A hack saw may be used to cut the PVC pipe. It must be cut smoothly at right angles with all burrs removed. All joints must use standard PVC Schedule 40 elbows and couplings. Joints are not to be made by gluing, except where noted, and butting together the cut or raw edges of the vent pipe. (The joints inside the vestibule should be sealed with a silicone caulk to allow for maintenance.) Notice: Do not use silicone caulk to seal the PVC sleeve or coupling to the metal air intake collar on the burner box. The screw securing the sleeve or coupling to the collar is sufficient.

7.Use the two radiator hose clamps to connect both the exhaust vent and combustion air vent pipes to the venting system (included in the parts package.) This will aid in the serviceability of the vent should it need to be removed in the future. (Refer to figure 6).

8.Vent connections shall be checked for leakage with the furnace induced draft blower running and with the vent termination blocked. A mild soap and water solution may be used to check for leaks.

9.Vent pipe passing through an unheated space must be insulated with 1.0” thick foil faced fiberglass insulation or its equivalent to prevent freezing of any condensate within the pipe.

10.Minimum clearance from the PVC pipe to combustible material is zero inches.

IMPORTANT: The CMA/CMC furnace models are vented through the roof. For roof venting refer to Section IV, J, of this manual.

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.