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General| Model | TDHMC100ACV4VA |
|---|---|
| Blower Motor | Variable Speed |
| Heating Capacity | 100, 000 BTU/hr |
| Fuel Type | Natural Gas |
| Warranty | 10-Year Limited Warranty |
Potential hazard and precautions related to carbon monoxide poisoning from venting.
Risks associated with gas leaks and improper servicing.
Dangers of high voltage components and moving fans.
Risks from high voltage, fans, and gas; emphasizes disconnecting power.
Diagram illustrating key furnace components and their locations.
Diagram showing the correct routing for vacuum hoses.
Procedure for trained personnel to access and operate the furnace user interface.
Illustration of the user interface display and navigation controls.
Menu options for viewing current system status and information.
Menu options for configuring furnace settings and parameters.
Menu for accessing system information like model, serial, and faults.
Configuration of cooling airflow settings and stages.
Configuration of heating airflow and delay settings.
Step-by-step process from call for heat to burner ignition and blower operation.
Diagram showing electrical connections for the furnace.
Operation sequence for W1 and W2 heating calls.
Operation sequence for a single-stage heating call.
Response when W2 heating is satisfied but W1 is still active.
Sequence when W1 heating requirements are met.
How the indoor blower operates in continuous fan mode.
Steps to enter and perform a simple unit test via the user interface.
Procedure for setting manifold gas pressure for optimal furnace operation.
Correct procedure for checking manifold pressure using a burner box reference.
Table of recommended manifold pressure settings for natural gas.
Table of recommended manifold pressure settings for propane gas.
Procedure to adjust manifold pressure for 40% heat operation.
Procedure to adjust manifold pressure for 100% heat operation.
Description of the personality module's role in furnace operation.
Steps to set up and operate the furnace in contingency (stand-alone) mode.
Procedure for setting up contingency mode using a 24V comfort control.
Explanation of the inducer learning process for optimal ventilation.
Detailed steps for the PS1 and PS2 inducer learning sequence.
Procedure for the PS-3 inducer learning routine for high heat operation.
Annual inspection items for furnace safety and installation integrity.
Description of blower timing settings for heating and cooling.
Recommendations for cleaning or replacing furnace filters.
Guidance on cleaning and servicing the blower motor and wheel.
Precautions for handling the igniter and cleaning the burners.
Procedure for inspecting and cleaning the heat exchanger and flue pipe.
Instructions for checking and cleaning the condensate drain for cooling coils.
Detailed wiring diagram for UHM series furnaces.
Table indicating model-specific wiring variations.
List of LED flash codes and their corresponding error descriptions.
Diagram identifying components on the IFC board.
Detailed wiring diagram for DHM series furnaces.
List of diagnostic codes for DHM furnaces based on LED flashes.
Diagram showing the layout and connections of the IFC board.
Table of CFM and Watts vs. static pressure for UHM B060 heating.
Table of CFM and Watts vs. static pressure for UHM B080 heating.
Table of CFM and Watts vs. static pressure for UHM C100 heating.
Table of CFM and Watts vs. static pressure for UHM D120 heating.
Table of CFM and Watts vs. static pressure for UHM B060 cooling.
Table of CFM and Watts vs. static pressure for UHM B080 cooling.
Table of CFM and Watts vs. static pressure for UHM B080 cooling.
Table of CFM and Watts vs. static pressure for UHM C100 cooling.
Table of CFM and Watts vs. static pressure for UHM C100 cooling.
Table of CFM and Watts vs. static pressure for UHM D120 cooling.
Table of CFM and Watts vs. static pressure for UHM D120 cooling.
Table of CFM and Watts vs. static pressure for DHM B060 heating.
Table of CFM and Watts vs. static pressure for DHM B080 heating.
Table of CFM and Watts vs. static pressure for DHM C100 heating.
Table of CFM and Watts vs. static pressure for DHM D120 heating.
Table of CFM and Watts vs. static pressure for DHM B060 cooling.
Table of CFM and Watts vs. static pressure for DHM B080 cooling.
Table of CFM and Watts vs. static pressure for DHM B080 cooling.
Table of CFM and Watts vs. static pressure for DHM C100 cooling.
Table of CFM and Watts vs. static pressure for DHM C100 cooling.
Table of CFM and Watts vs. static pressure for DHM D120 cooling.
Table of CFM and Watts vs. static pressure for DHM D120 cooling.
Table sorting alerts by Fault LED, COM LED, UI display, and alert group.
Detailed descriptions for various fault codes and their potential causes.
How alerts are displayed and recovered on power up.
Diagram identifying connections and LEDs on the IFC board.
List of troubleshooting flowcharts based on LED flash codes and user interface prompts.
Diagram detailing the layout and connections of the IFC board's components.
Table mapping RED LED flashes to specific error messages and conditions.
Flowchart to guide initial troubleshooting based on power and interface status.
Flowchart for diagnosing 'Retry LO' faults related to ignition attempts.
Troubleshooting steps for flame sensor errors and positioning.
Diagrams showing correct and incorrect placement of the ignitor and flame sensor.
Flowchart for diagnosing faults related to pressure switches PS1, PS2, and PS3.
Flowchart for diagnosing high limit and auxiliary limit switch faults.
Checks for blower wheel, ducting, and static pressure related to faults.
Troubleshooting steps for rollout switch faults and burner alignment.
Checks for flue piping, venting, and combustion air related to faults.
Flowchart for diagnosing flame sensing errors and gas valve issues.
Flowchart for diagnosing polarity and ground connection errors.
Troubleshooting steps for ignitor, triac, and voltage-related faults.
Flowchart for diagnosing errors related to the external gas valve circuit.
Flowchart for diagnosing low flame sense current errors.
Flowchart for diagnosing inducer limit switch faults and venting issues.
Flowchart for diagnosing communication errors between IFC and other components.
Steps for troubleshooting the serial motor and its connections.
Flowchart for diagnosing system clock and 24V communication mismatch errors.
Instructions on changing the furnace's mode of operation.
