Thermo Products CDX1-75N, CHX1-125N, CHX1-75N, CHX1-100N, CDX1-125N, CDX1-100N Diagnostic Features

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

DIAGNOSTIC FEATURES

The 50V61 control used on this furnace continuously monitors its operation and the operation of the system.

If the sensed failure is in the system (external to the control), the red LED will flash in the following flash- pause sequences to indicate failure status (each flash will last approximately 0.25 seconds, and each pause will last approximately 2 seconds):

1 flash, then pause

system lockout (retries or recycles exceeded)

2 flashes, then pause

low pressure switch stuck closed

3 flashes, then pause

low pressure switch stuck open

4 flashes, then pause

open high temperature limit switch

5 flashes, then pause

not used

6 flashes, then pause

115 V AC power reversed

7 flashes, then pause

low flame sense signal

8 flashes, then pause

check igniter or improper ground

9 flashes, then pause

high pressure switch stuck open

Continuous flash

flame sensed with gas valve de-energized

The LED will also flash once at power-up.

A green LED indicator is also present to obtain an estimate of the air flowrate (in CFM) produced by the house air blower. This LED cycles regularly by providing a constant light, followed by a sequence of flashes. Each flash can be translated to programmed CFM by using the following:

1 flash per 100(programmed) CFM

: Power must be disconnected before servicing.

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Contents TWO Stage Condensing GAS Furnace MG-1010Safety Information Page Iii Page Index Section Beginning II. Furnace Specifications CHX1 Series Model no Temperature Rise Blower Motor HP Power ChokesHeight of Casing Width of Casing Depth of CasingCDX1 Series Model no CDX1-75 CDX1-100 CDX1-125 BTU/HR Input High fire / Low fireBTU/HR Output High fire / Low fire @HEATING TAP C High fire / Low fireInstallation Parts Packages CHX1-75 Description Quantity #S00S4378#S00S4379 Installation Parts Packages CDX1-75 Description Quantity #S00S4380#S00S4381 III. General Installation Codes and ClearancesCHX1-75 CHX1-100 CHX1-125 CDX1-75 CDX1-100 CDX1-125 Furnace Location B1. CDX1 Horizontal ApplicationPage Replacing AN Existing Furnace from a Common Vent General Requirements for Venting CHX1/CDX1Maximum Vent Length Sidewall Venting Vent Terminal Location Requirements Vent Terminal Location Guidelines E1. Single Pipe Sidewall Venting OptionInstallation of Outside VENT/AIR Intake Terminations Optional 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 CHX1 Trap Assembly Mounted on CDX1Page General GAS Piping Filters CHX1 Models Highboys CDX1 Models Counterflows Wiring USE of NON-THERMO Pride Filter Retention MeansRate AIR Velocity Furnace ModelElectronic AIR Cleaner EAC and Humidifier Installation Thermostat Connections and Anticipator SettingBlower and Control Panel Wiring Settings Low fire High fire CDX1-75 Field Wiring and Replacing WiringCFM CHX1-75Contacts Close Retry will be Made If System is in Lockout Initial Start UP Operating InstructionsGas flowrate by clocking gas meter Exploded View of CDX/CHX Gas Control System BTU CHX Low CDX Low CHX Low CDX Low Model SeriesNormal Manifold Pressure in. W.GChecking The Burner Flame Checkout Procedure Sketch of Typical Main Burner Flames During OperationConverting GAS Flow Rate Furnace Checkout Procedure Installers Instructions to UserVI. 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.