III. General Installation

Thermo Products CDX1-75N, CHX1-125N, CHX1-75N III. General Installation, Codes and Clearances

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

These Category Type IV furnaces are shipped completely assembled and wired (internally). See the Dealer Receiving and Freight Claim Procedure Section of the price guide for parts shortage or damage. The furnace and duct system must be adjusted to obtain a temperature rise of 55°F to 85°F through the furnace after installation. (See rating label located on side panel inside the furnace vestibule). The installation must conform with local codes, or in the absence of local codes, with the National Fuel Gas Codes (ANSI Z223.1 or latest edition) and with these instructions.

: This furnace is not to be used for temporary heating of buildings or structures under construction.

Many of the chemicals used during construction, when burned, form acid bearing condensate that can substantially reduce the life of the heat exchanger.

A. CODES AND CLEARANCES

The following items must be considered when choosing the size and location of the furnace.

1.All local codes and/or regulations take precedence over the instructions in this manual and should be followed accordingly. In the absence of local codes, installation must conform with these instructions, regulations of the National Fire Protection Association, provisions of National Electrical Code (ANSI/NFPA70 or latest edition), and the National Fuel Gas Code (ANSI Z223.1 or latest edition).

2.The BTU output capacity of the furnace proposed for installation should be based on a heat loss calculation made according to the manuals provided by the Air Conditioning Contractors of America (ACCA) or ASHRAE.

3.MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS

TABLE 1

MODEL NO.	FROM SIDES OF	FRONT	TOP OF	FROM THE	SIDE OF
MODEL NO.	FURNACE & REAR	FRONT	PLENUM	FLUE OR VENT	PLENUM
	FURNACE & REAR		PLENUM	FLUE OR VENT	PLENUM
CHX1-75	0 IN.	6 IN.	0 IN.	0 IN.	1 IN.
CHX1-100	0 IN.	6 IN.	0 IN.	0 IN.	1 IN.
CHX1-125	0 IN.	6 IN.	0 IN.	0 IN.	1 IN.
CDX1-75	0 IN.	6 IN.	0 IN.	0 IN.	1 IN.
CDX1-100	0 IN.	6 IN.	0 IN.	0 IN.	1 IN.
CDX1-125	0 IN.	6 IN.	0 IN.	0 IN.	1 IN.

The CHX1-75, 100 and 125 furnaces may be installed on combustible flooring. The furnace shall not be installed directly on carpeting, tile or other combustible material other than wood flooring.

The CDX1-75, 100 and 125 furnaces are to be installed on non-combustible flooring only. The non- combustible floor bases model no. 50 CA base for CDX1-75 model no. 100 CA base for the model no. CDX1-100 and model no. 125 CA base for CDX1-125 are available for the counterflow furnaces to allow their installations on combustible flooring.

These furnaces may be installed in an alcove or in a closet if the minimum clearances to combustible construction (listed previously) are met. The CDX1 series furnaces may be installed in an attic or crawl space. Refer to section III, B1 of this installation manual.

The minimum clearances are listed for fire protection. Clearance for servicing the front of the furnaces and to all points on the furnace requiring access must be 24”*.

*For horizontal furnace installation, refer to section III, B1 of this installation manual.

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.