Thermo Products CHX1-125N, CDX1-75N, CHX1-75N Furnace Location, B1. CDX1 Horizontal Application

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

Equipment must be installed in accordance with regulations of the National Board of Fire Underwriters. Authorities having jurisdiction should be consulted before installations are made.

B. FURNACE LOCATION

: These high efficiency condensing furnaces are not certified for and shall not be vented into a standard or any type of chimney.

The following shall be considered for locating the furnace:

1.For best performance locate the furnace so that it is centralized with respect to the duct system and as near as possible to a floor drain since condensate drainage must be provided.

2.Place the unit so that proper venting can be achieved, with a minimum number of elbows, in accord with the instructions in this manual.

3.The furnace must be located on a level, dry surface. The furnace must be installed so that the electrical components are protected from water. If the area becomes wet or damp at times, the furnace should be raised above the floor using a concrete base, bricks, patio blocks, etc.

NOTICE: Ensure furnace is level after installation to ensure proper drainage and operation.

4.This furnace must be connected to a drain in accordance with these instructions. If it is not practical to connect the unit to a drain, a condensate pump must be used and can be ordered as an accessory, part number 350225. If an acid neutralizer kit is required by local code or the customer, it is available under part number 320095.

B1. CDX1 HORIZONTAL APPLICATION

The CDX1-75, 100, and 125 furnaces may be installed in a horizontal position by placing the furnace on the left or right side (as viewed from the front in the upright position).

For left or right horizontal applications of the CDX1 series units, the rollout switch located on the burner box must be moved to the pre-punched mounting holes on the side of the burner box. Screws are provided in pre-punched holes at the required limit location. Remove these screws and use them to mount the limit to new location. Utilize previously removed limit mounting screws to fill voided holes at previous limit location (See Figure 1).

For a right side horizontal application of the CDX1 series units, the hose from the single tap pressure switch (top switch) is already connected correctly (See Figure 1).

For a left side horizontal application of the CDX1 series units, the hose from the single tap pressure switch (bottom switch) must be moved to the lower front tap on the face of the collector box. Use the black cap removed from this tap to plug the original pressure switch tap.

NOTE: The hose, when moved, must be shortened (cut) to ensure that no excess hose exists to cause a sag, loop, or "water trap".

For a right side horizontal application of the CDX1 series units, the auxiliary limit switch located on the right side of the house air blower must be moved to the bracket on the opposite (left) side of the blower (See Figure 1).

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Contents MG-1010 TWO Stage Condensing GAS FurnaceSafety Information Page Iii Page Index Section Beginning Temperature Rise Blower Motor HP Power Chokes II. Furnace Specifications CHX1 Series Model noHeight of Casing Width of Casing Depth of CasingCDX1-75 CDX1-100 CDX1-125 BTU/HR Input High fire / Low fire CDX1 Series Model noBTU/HR Output High fire / Low fire @HEATING TAP C High fire / Low fire#S00S4378 Installation Parts Packages CHX1-75 Description Quantity#S00S4379 #S00S4380 Installation Parts Packages CDX1-75 Description Quantity#S00S4381 Codes and Clearances III. General InstallationCHX1-75 CHX1-100 CHX1-125 CDX1-75 CDX1-100 CDX1-125 B1. CDX1 Horizontal Application Furnace LocationPage General Requirements for Venting CHX1/CDX1 Replacing AN Existing Furnace from a Common VentMaximum Vent Length Sidewall Venting Vent Terminal Location Requirements E1. Single Pipe Sidewall Venting Option Vent Terminal Location GuidelinesOptional Terminations Installation of Outside VENT/AIR Intake TerminationsPage Page Connecting the Exhaust Vent to the Inducer Page Connecting the Combustion AIR Inlet Connecting the Furnace to Roof VENT/AIR Terminations Trap Assembly Mounted on CDX1 Trap Assembly Mounted on CHX1Page General GAS Piping Filters CHX1 Models Highboys CDX1 Models Counterflows USE of NON-THERMO Pride Filter Retention Means WiringRate AIR Velocity Furnace ModelThermostat Connections and Anticipator Setting Electronic AIR Cleaner EAC and Humidifier InstallationBlower and Control Panel Wiring Field Wiring and Replacing Wiring Settings Low fire High fire CDX1-75CFM CHX1-75Contacts Close Retry will be Made If System is in Lockout Operating Instructions Initial Start UPGas flowrate by clocking gas meter Exploded View of CDX/CHX Gas Control System BTU CHX Low CDX Low Model Series CHX Low CDX LowNormal Manifold Pressure in. W.GChecking The Burner Flame Sketch of Typical Main Burner Flames During Operation Checkout ProcedureConverting GAS Flow Rate Installers Instructions to User Furnace Checkout ProcedureVI. Troubleshooting Diagnostic Features Terminals IND HI to IND N or IND LO to Is the High Limit Page 50V61-143 Control AIR Blower Turn OFF Replacement parts list for CHX1-75, CHX1-100 and CHX1-125 Page Replacement parts list for CDX1-75, CDX1-100 and CDX1-125 Page Appendix B Wiring Diagrams
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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.