Thermo Products CDX1-100N, CDX1-75N, CHX1-125N, CHX1-75N, CHX1-100N, CDX1-125N VI. Troubleshooting

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

5.That failure to maintain and operate this furnace in accordance with these instructions could result in hazardous conditions, bodily injury, property damage and may void the limited warranty on the furnace.

6.Review with and encourage the user to read the label reproductions and all warnings and instructions outlined on the front cover and in sections I, II and III of this manual and in the Users Information Manual.

7.Recommend that the user have a qualified heating contractor inspect the furnace at the start of each heating season. Inform the user of the frequency of inspection required for reach item in Section III of the Users Manual.

Figure 25

VI. 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.

IMPORTANT: For your convenience, Thermo Products has installed a sight glass in the blower door of this furnace. The number of flashes in groups should be observed through this sight glass and recorded before turning off power to the furnace. Otherwise power to the furnace will be when turning off power or removing the blower door which is equipped with door interlock switch, which will reset the control. Should this occur, it will be necessary to restart the furnace and have the failure occur again.

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Contents MG-1010 TWO Stage Condensing GAS FurnaceSafety Information Page Iii Page Index Section Beginning Width of Casing Depth of Casing II. Furnace Specifications CHX1 Series Model noTemperature Rise Blower Motor HP Power Chokes Height of Casing@HEATING TAP C High fire / Low fire CDX1 Series Model noCDX1-75 CDX1-100 CDX1-125 BTU/HR Input High fire / Low fire BTU/HR Output High fire / Low fire#S00S4379 Installation Parts Packages CHX1-75 Description Quantity#S00S4378 #S00S4380 Installation Parts Packages CDX1-75 Description Quantity#S00S4381 CHX1-75 CHX1-100 CHX1-125 CDX1-75 CDX1-100 CDX1-125 III. General InstallationCodes and Clearances B1. CDX1 Horizontal Application Furnace LocationPage Maximum Vent Length Replacing AN Existing Furnace from a Common VentGeneral Requirements for Venting CHX1/CDX1 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 AIR Velocity Furnace Model WiringUSE of NON-THERMO Pride Filter Retention Means RateThermostat Connections and Anticipator Setting Electronic AIR Cleaner EAC and Humidifier InstallationBlower and Control Panel Wiring CHX1-75 Settings Low fire High fire CDX1-75Field Wiring and Replacing Wiring CFMContacts 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 Pressure in. W.G CHX Low CDX LowCHX Low CDX Low Model Series Normal ManifoldChecking 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.
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