Thermo Products CHX1-75N, CDX1-75N Electronic AIR Cleaner EAC and Humidifier Installation

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

a.A separate power supply circuit with over current protection and a disconnect switch must be provided. The minimum fuse or circuit breaker size is 20 amp.

b.All CHX1 and CDX1 Series furnaces are supplied with a fuse disconnect switch box to be mounted on the outside surface of the right or left side casing so a fuse disconnect can be mounted on the furnace. Make the 115 volt supply connection in this junction box. A green screw and a strain relief are provided in order to connect the power supply ground wire and provide strain relief for the 115 volt power leads from the furnace in the fuse disconnect box. A disconnect switch can be field mounted on the 2x4 box provided. If not, the disconnect switch must be located reasonably close to and within sight of the furnace.

NOTICE: The hot surface igniter and operation of this furnace depends on correct polarity. The hot leg of the supply circuit must be connected to the black line lead and the common leg to the white line lead in the field mounted junction box. The hot leg must pass through the disconnect switch in all cases to prevent the hazard of electrical shock when servicing.

IMPORTANT: The furnace must be grounded in accordance with local codes and with the National Electrical Code (ANSI/NFPA NO. 70 or latest edition) when an external electrical source is utilized.

2. ELECTRONIC AIR CLEANER (EAC) AND HUMIDIFIER INSTALLATION

The ignition module on this furnace has designated terminals to control the operation of an electronic air cleaner and/or humidifier. These terminals provide line voltage (110-20VAC) for the control of these accessories. (See Figure 21). NOTICE: It is important to confirm that the operating voltage of the humidifier or EAC being installed matches the output of this control. If not, a field supplied relay or transformer may be necessary to provide the proper control and supply voltage for the accessory being installed. See the manufacturers instructions for the humidifier or EAC for additional instructions.

3. THERMOSTAT CONNECTIONS AND ANTICIPATOR SETTING

NOTICE: For two-stage thermostat wire connectors see wire diagram page 44. For single-stage thermostat with two-stage operation connect W from thermostat to W1 on control. W2 on control board is not used. Thermostat shunt on control board (Fig. 21) will need to be moved to single t’stat. In this configuration the furnace will light and burn on low fire for 10 minutes (5 minutes optional). If thermostat has not been satisfied in 10 minutes the control will step up to high fire until thermostat is satisfied. If the 5 minutes option is desired turn dip switch S1-3 (Fig. 21) off.

Proper control of the indoor temperature can only be achieved if the thermostat is calibrated to the heating and/or cooling cycle. A vital consideration of this calibration is related to the thermostat heat anticipator.

The proper thermostat heat anticipator setting is 0.4 AMPS for furnace operation only. To increase length of cycle, increase setting of heat scale; to decrease length of cycle, decrease setting of heat scale.

Anticipators for the cooling operation are generally pre-set by the thermostat manufacturer and require no adjustment.

Anticipators for the heating operation are of two types, pre-set and adjustable. Those that are pre-set will not have an adjustment scale and are generally marked accordingly.

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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 fire#S00S4379 Installation Parts Packages CHX1-75 Description Quantity#S00S4378 Installation Parts Packages CDX1-75 Description Quantity #S00S4380#S00S4381 CHX1-75 CHX1-100 CHX1-125 CDX1-75 CDX1-100 CDX1-125 III. General InstallationCodes and Clearances Furnace Location B1. CDX1 Horizontal ApplicationPage Maximum Vent Length Replacing AN Existing Furnace from a Common VentGeneral Requirements for Venting CHX1/CDX1 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.
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