Trane UHMB060ACV3VA Series User Manual

UHM-DHM-SF-1H 3
Service Facts
SAFETY SECTION
▲
WARNING
!
FIRE OR EXPLOSION HAZARD
Failure to follow the safety warnings exactly could re-
sult in serious injury, death or property damage.
Never test for gas leaks with an open flame. Use a com-
mercially available soap solution made specifically for
the detection of leaks to check all connections. A fire
or explosion may result causing property damage, per-
sonal injury, or loss of life.
▲
WARNING
!
FIRE OR EXPLOSION HAZARD
Failure to follow the safety warnings exactly could re-
sult in serious injury, death or property damage.
Improper servicing could result in dangerous opera-
tion, serious injury, death, or property damage.
▲
WARNING
!
BODILY INJURY CAN RESULT FROM HIGH VOLTAGE
ELECTRICAL COMPONENTS, FAST MOVING FANS,
AND COMBUSTIBLE GAS. FOR PROTECTION FROM
THESE INHERENT HAZARDS DURING INSTALLATION
AND SERVICING, THE ELECTRICAL SUPPLY MUST BE
DISCONNECTED AND THE MAIN GAS VALVE MUST BE
TURNED OFF. IF OPERATING CHECKS MUST BE
PERFORMED WITH THE UNIT OPERATING, IT IS THE
TECHNICIAN’S RESPONSIBILITY TO RECOGNIZE
THESE HAZARDS AND PROCEED SAFELY.
▲
WARNING
!
Should overheating occur, or the gas supply fail to
shut off, shut off the Gas Valve to the unit before shut-
ting off the electrical supply.
Failure to follow this warning could result in property
damage, personal injury, or death.
▲
CAUTION
!
The integrated furnace control is polarity sensitive. The
hot leg of the 115 VAC power must be connected to the
BLACK field lead
NOTE:
CONTINUOUS fan mode during COOLING operation
may not be appropriate in humid climates. If the
indoor air exceeds 60% relative humidity or simply
feels
uncomfortably humid, it is recommended that the
fan only be used in the AUTO mode.
A communicating comfort control will disable a
continuous fan call if the relative humidity exceeds the
set point. See the Troubleshooting Information section
of the Communicating Comfort Control Installer’s
Guide for details.
▲
WARNING
!
The cabinet must have an uninterrupted or unbroken
ground according to National Electrical Code, ANSI/
NFPA 70 - “latest edition” and Canadian Electrical
Code, CSA C22.1 or local codes to minimize personal
injury if an electrical fault should occur.
Failure to follow this warning could result in an electri-
cal shock, fire, injury, or death.
▲
WARNING
!
CARBON MONOXIDE POISONING HAZARD
Failure to follow the installation instructions for the
venting system being placed into operation could re-
sult in carbon monoxide poisoning or death.
CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined below for each
appliance connected to the venting system being
placed into operation could result in carbon monoxide
poisoning or death.
The following steps shall be followed for each appliance
connected to the venting system being placed into
operation, while all other appliances connected to the
venting system are not in operation:
1. Seal any unused openings in the venting system.
2. Inspect the venting system for proper size and
horizontal pitch, as required in the National Fuel Gas
Code, ANSI Z223.1/NFPA 54 or the CAN/CGA B149
Installation Codes and these instructions. Determine
that there is no blockage or restriction, leakage,
corrosion and other deficiencies which could cause an
unsafe condition.
3. As far as practical, close all building doors and
windows and all doors between the space in which the
appliance(s) connected to the venting system are
located and other deficiencies which could cause an
unsafe condition.
4. Close fireplace dampers.
5. Turn on clothes dryers and any appliance not
connected to the venting system. Turn on any exhaust
fans, such as range hoods and bathroom exhausts, so
they are operating at maximum speed. Do not operate
a summer exhaust fan.
6. Follow the lighting instructions. Place the appliance
being inspected into operation. Adjust the thermostat
so appliance is operating continuously.
7. If improper venting is observed during any of the above
tests, the venting system must be corrected in
accordance with the National Fuel Gas Code,
ANSI Z221.1/NFPA 54 and/or CAN/CGA B149
Installation Codes.
8. After it has been determined that each appliance
connected to the venting system properly vents where
tested as outlined above, return doors, windows,
exhaust fans, fireplace dampers and any other gas-fired
burning appliance to their previous conditions of use.
▲
WARNING
!

Trane UHMB060ACV3VA Series Specifications

General

Model	UHMB060ACV3VA
Series	UHMB
Efficiency Rating	80% AFUE
Blower Type	Variable Speed
Blower Motor	ECM
Stages	Single Stage
Ignition	Hot Surface Ignition
Heating Capacity	60, 000 BTU/h
Fuel Type	Natural Gas
Gas Valve	Single Stage Gas Valve
Heat Exchanger	Aluminized Steel
Warranty	5-Year Limited Warranty on Parts

Summary

Product Specifications

Product Specifications Table

Detailed technical data for various furnace models, including ratings, blower, combustion fan, and heat exchanger specs.

Safety Section

General Safety Warnings

Critical warnings regarding electrical shock, fire, explosion, and carbon monoxide hazards during operation and servicing.

Furnace Components

Component Identification

Visual identification of key furnace components including the burner box, vacuum hose routing, and control board.

User Interface Operation

Accessing the User Interface

Procedure for trained personnel to access and navigate the furnace's user interface for settings and diagnostics.

User Interface Menu Structure

System Status and Information

Overview of the user interface menus for system status, information, and setup options.

Sequence of Operation Modes

Communicating Mode Operation

Detailed steps for furnace operation when controlled by a communicating comfort control system.

Sequence of Operation Modes

24VAC Mode Operation

Steps for furnace operation using a standard 24VAC thermostat control system.

Unit Test Modes

Gas Valve Setup Procedure

Instructions for setting and verifying manifold gas pressures for accurate furnace operation.

Stand Alone Operation Modes

Contingency Mode Setup

Guide for setting up the furnace to operate in a standalone contingency mode with defined duty cycles.

Inducer Learning Routine

PS-1, PS-2 Inducer Learning

Procedure for the IFC to learn optimal speeds for pressure switches PS1 and PS2 during heating cycles.

Periodic Servicing Requirements

Furnace and Vent System Inspection

Annual inspection guidelines for furnace installation, flue pipes, and vent connectors to ensure safety and performance.

Component Maintenance

Routine maintenance procedures for filters, blowers, igniters, burners, heat exchangers, and condensate drains.

Wiring and Schematic Diagrams

UHM Series Diagrams and Codes

Electrical schematics, wiring, and diagnostic codes for UHM series furnaces.

Wiring and Schematic Diagrams

DHM Series Diagrams and Codes

Electrical schematics, wiring, and diagnostic codes for DHM series furnaces.

Airflow and Power Data (Heating)

UHM Furnace Heating Airflow Data

Tables showing UHM furnace heating airflow (CFM) and power (Watts) vs. external static pressure.

Airflow and Power Data (Cooling)

UHM Furnace Cooling Airflow Data

Tables showing UHM furnace cooling airflow (CFM) and power (Watts) vs. external static pressure.

Airflow and Power Data (Heating)

DHM Furnace Heating Airflow Data

Tables showing DHM furnace heating airflow (CFM) and power (Watts) vs. external static pressure.

Airflow and Power Data (Cooling)

DHM Furnace Cooling Airflow Data

Tables showing DHM furnace cooling airflow (CFM) and power (Watts) vs. external static pressure.

Alert Codes and Descriptions

Furnace Fault Code Definitions

Comprehensive list of fault codes, their descriptions, and associated alert groups for furnace diagnostics.

Control Board Indicators

LED Status and Alert Code Recovery

Explanation of LED indicators on the IFC board and how alert codes are recovered and displayed.

Integrated Furnace Control (IFC) Layout

IFC Component Identification

Diagram illustrating the layout and location of components on the Integrated Furnace Control (IFC) board.

LED Flash Code Reference

Interpreting LED Flash Codes

A table mapping RED LED flash counts to specific error codes and their meanings.

Getting Started Troubleshooting

Initial Diagnostic Flowchart

A flowchart guiding initial troubleshooting steps based on power supply and user interface status.

Troubleshooting Specific Faults

2 Flash Fault LED Troubleshooting

Step-by-step guide for diagnosing and resolving the 2 Flash Fault LED error related to ignition and gas pressure.

Troubleshooting Specific Faults

3 Flash Fault LED Troubleshooting

Diagnostic steps for the 3 Flash Fault LED error, focusing on pressure switch issues and inducer motor operation.

Troubleshooting Specific Faults

4 Flash Fault LED Troubleshooting

Flowcharts to diagnose faults indicated by 4 flashes on the LED, covering high limit, auxiliary limit, and reverse flow issues.

Troubleshooting Specific Faults

4 Flash Fault LED Troubleshooting (Continued)

Further troubleshooting steps for 4 Flash Fault LED errors, including burner alignment, flame direction, and flue piping.

Troubleshooting Specific Faults

5 Flash Fault LED Troubleshooting

Diagnostic procedure for the 5 Flash Fault LED error, related to the flame sensor and gas valve issues.

Troubleshooting Specific Faults

6 Flash Fault LED Troubleshooting (Polarity/Ground)

Steps to diagnose 6 Flash Fault LED errors concerning incoming voltage polarity and ground connections.

Troubleshooting Specific Faults

6 Flash Fault LED Troubleshooting (Ignitor/Triac)

Troubleshooting for 6 Flash Fault LED errors involving the ignitor, triac, and AC voltage to the ignitor.

Troubleshooting Specific Faults

7 Flash Fault LED Troubleshooting

Procedure to resolve the 7 Flash Fault LED error, indicating an external gas valve circuit issue.

Troubleshooting Specific Faults

8 Flash Fault LED Troubleshooting

Steps to diagnose the 8 Flash Fault LED error, related to low flame sensor current.

Troubleshooting Specific Faults

9 Flash Fault LED Troubleshooting

Guide for the 9 Flash Fault LED error, typically indicating an inducer limit or venting system issue.

Troubleshooting Specific Faults

10 Flash Fault LED Troubleshooting (Communication)

Steps to resolve 10 Flash Fault LED errors related to communication issues between the IFC and other components.

Troubleshooting Specific Faults

10 Flash Fault LED Troubleshooting (System Clock/24V Comm)

Further troubleshooting for 10 Flash Fault LED errors involving system clock or 24V communication mismatches.