Thermo Products CHX1-125N, CDX1-75N, CHX1-75N, CHX1-100N Terminals IND HI to IND N or IND LO to

Page 49

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

TROUBLESHOOTING GUIDE

THE SYSTEM IS STARTED BY SETTING THE THERMOSTAT TO CALL FOR

HEAT. THE FOLLOWING SHOULD HELP ESTABLISH THE TYPE OF

MALFUNCTION OR DEVIATION FROM THE NORMAL OPERATION.

NOTE: IF LED LIGHT IS FLASHING, REFER TO PAGE 34 FOR A QUICK TROUBLESHOOTING GUIDE.

TO USE THIS DIAGRAM, YOU JUST NEED TO FOLLOW THE INSTRUCTIONS IN THE BOXES.

SET THERMOSTAT TO CALL FOR HEAT

(MAKE CERTAIN ROOM TEMPERATURE IS BELOW THERMOSTAT SETTING)

IS THE INDUCER

BLOWER OPERATING?

NO

IS THERE 120 VOLTS ACROSS "L1" AND "NEUTRAL" AT THE 50V61-143 CONTROL MODULE?

YES

NO

CHECK INPUT POWER, DOOR INTERLOCK, SERVICE SWITCH AND FUSES

IS THERE 24 VOLTS ACROSS "TH" & "TR"

AT THE INTEGRATED CONTROL MODEL 50V61-143?

YES

YES

IS THERE 24V

ACROSS R AND B/C

YES

NO

NO

CHECK 115 VOLT

CONNECTIONS. IF OK,

REPLACE TRANSFORMER

CHECK FUSE ON

W/R 50V61-143

IS THERE 24 VOLTS

YES

ACROSS "R" AND "W1"?

NO

 

IS THERE LINE VOLTAGE

 

 

 

 

ACROSS INDUCER POWER

 

NO

 

 

 

 

 

TERMINALS "IND HI" TO

 

 

 

"IND N" OR "IND LO" TO

 

 

 

 

 

"IND N" AT THE 50V61-143

 

 

 

 

 

 

 

 

CONTROL?

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

CHECK WIRING TO INDUCER

AND IF OK, REPLACE

INDUCER ASSEMBLY.

CHECK WIRING TO

THERMOSTAT. IF OK, REPLACE THERMOSTAT.

REPLACE THE

50V61-143 CONTROL.

43

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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.
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