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

NOTES:

1The drain tee supplied with CHX1/CDX1 furnaces count as 1 elbow.

2(2) 45° elbows can be substituted for (1) 90° elbow.

Care should be taken to plan out the vent system to be as short as possible (but not shorter than 8 ft.) and to contain as few elbows as possible to insure the best possible operation of the furnace.

8.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 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.

Note: 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.

9.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.

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

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

12.Screens are not required by Thermo Products for the vent and intake. However, optional stainless steel screens are available from Thermo Products, should the homeowner request them.

IMPORTANT: The CHX1/CDX1 furnace models may be vented either through the sidewall or roof. For sidewall instructions continue reading the following section. For roof venting refer to Section III, H, of this manual.

E. SIDEWALL VENTING

1.The maximum wall thickness through which the vent and combustion air pipes may pass is 18” and the minimum is 2”. The maximum distance from the outer wall to the center of the elbow is 12” (See Figure 2).

Figure 2

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Thermo Products CDX1-125N, CDX1-75N, CHX1-125N, CHX1-75N, CHX1-100N, CDX1-100N operation manual Sidewall Venting
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CDX1-100N, CDX1-125N, CHX1-100N, CHX1-75N, CHX1-125N specifications

Thermo Products has established itself as a leader in the HVAC industry, providing innovative solutions for climate control with their latest product line, including the CHX1-125N, CDX1-75N, CDX1-100N, CHX1-75N, and CHX1-100N models. These units are designed for both efficiency and performance, catering to a wide range of heating and cooling needs.

One of the standout features of these models is their high energy efficiency ratings. Utilizing advanced inverter technology, these units dynamically adjust their operating frequency, optimizing energy consumption while maintaining consistent temperature control. This adaptability not only enhances comfort but also significantly lowers energy bills, making them an eco-friendly choice for both residential and commercial applications.

The CHX1 series, including the CHX1-125N, CHX1-75N, and CHX1-100N, is renowned for its robust build quality and superior performance in extreme conditions. They can operate effectively in varied environments, ensuring reliable heating during harsh winters and efficient cooling amid hot summers.

In contrast, the CDX1 series—featuring the CDX1-75N and CDX1-100N—focuses on delivering exceptional versatility. These models come equipped with advanced multi-zone capabilities, allowing users to control different areas or rooms with precision. This zoning capability not only enhances comfort but also optimizes energy efficiency by allowing users to heat or cool only the spaces that are occupied.

A common characteristic among all these models is their quiet operation. Designed with noise-reduction technologies, the units are engineered to operate with minimal sound, making them ideal for residential settings, offices, and other noise-sensitive environments.

Moreover, Thermo Products emphasizes user-friendly interfaces in their design. With intuitive controls and smart connectivity options, users can easily manage their HVAC systems through mobile applications, ensuring convenience and optimal temperature management from anywhere.

Overall, Thermo Products’ CHX1-125N, CDX1-75N, CDX1-100N, CHX1-75N, and CHX1-100N models exemplify the perfect blend of innovation, efficiency, and user-centered design. These heating and cooling solutions not only meet the demands of modern living but also contribute to sustainability efforts, making them a valuable addition to any climate control system.
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