Table of Contents
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Service Facts
Upflow/ Horizontal, Downflow/ Horizontal,
Gas-Fired, Direct Vent, Condensing, Single
Stage Furnaces:
*UH1B040A9241C
*UH1B060A9361C
*UH1B080A9421C
*UH1C080A9601C
IMPORTANT — This document contains a wiring diagram and service information. This is customer property and is to
remain with this unit. Please return to service information pack upon completion of work.
WARNING
MODEL
TYPE
RATINGS 2
Input BTUH 3
Capacity BTUH (ICS) 3
Temp. rise (Min.-Max.) °F.
AFUE (Upflow / Horizontal)
BLOWER DRIVE
Diameter - Width (In.)
No. Used
Speeds (No.)
CFM vs. in. w.g.
Motor HP
R.P.M.
Volts / Ph / Hz
COMBUSTION FAN - Type
Drive - No. Speeds
Motor HP - RPM
Volts / Ph / Hz
FLA
FILTER — Furnished?
Type Recommended
Hi Vel. (No.-Size-Thk.)
VENT PIPE DIAMETER — Min (In.) 56
HEAT EXCHANGER
Type
- Unfired
Gauge (Fired)
ORIFICES — Main
Nat. Gas. Qty. — Drill Size
L.P. Gas Qty. — Drill Size
GAS VALVE
PILOT SAFETY DEVICE
Type
BURNERS — Type
Number
POWER CONN. — V / Ph / Hz 4
Ampacity (In Amps)
Max. Overcurrent Protection (Amps)
PIPE CONN. SIZE (IN.)
DIMENSIONS
Crated (In.)
WEIGHT
Shipping (Lbs.) / Net (Lbs.)
Notes
1 Central Furnace heating designs are certified to ANSI Z21.47 / CSA 2.3.
2 For U.S. applications, above input ratings (BTUH) are up to 2,000 feet, derate 4% per 1,000 feet for elevations above 2,000 feet above sea level.
For Canadian applications, above input ratings (BTUH) are up to 4,500 feet, derate 4% per 1,000 feet for elevations above 4,500 feet above sea level.
3 Based on U.S. government standard tests.
4 The above wiring specifications are in accordance with National Electrical Code; however, installations must comply with local codes.
5 Refer to the Vent Length Table in the Installer's Guide or the Allowable Vent Length label located on the furnace.
6 All *UH1 and *DH1 furnace models have a vent outlet diameter that equals 2".
NOTICE: Since the manufacturer has a policy of continuous product and product data
improvement, it reserves the right to change design and specifications without notice.
© 2017 Trane
All Rights Reserved
*UH1C100A9481C
*UH1D100A9601C
*UH1D120A9601C
*DH1B040A9241C
DISCONNECT POWER BEFORE SERVICING
PRODUCT SPECIFICATIONS
*UH1B040A9241C
Upflow / Horizontal
40,000
38,000
30 - 60
95 / 94.2
DIRECT
9 x 7
1
4
See Fan Performance Table
1/5
1075
115/1/60
Centrifugal
Direct - 1
1/55 - 3000
115/1/60
1.0
No
High Velocity
1 - 17x25 - 1in.
2 Round
Aluminized Steel - Type I
20
2 — 45
2 — 56
Redundant - Single Stage
Hot Surface Ignition
Multiport Inshot
2
115/1/60
5.2
15
1/2
H x W x D
41-3/4 x 19-1/2 x 30-1/2
139 / 129
UH1-DH1-SF-1L
*DH1B065A9421C
*DH1C085A9481C
*DH1D110A9601C
*__First letter may be "A" or "T"
1
*UH1B060A9361C
Upflow / Horizontal
60,000
57,000
30 - 60
95 / 94.2
DIRECT
10 x 7
1
4
See Fan Performance Table
1/3
1075
115/1/60
Centrifugal
Direct - 1
1/15 - 3450
115/1/60
1.75
No
High Velocity
1 - 17x25 - 1in.
2 Round
Aluminized Steel - Type I
20
3 — 45
3 — 56
Redundant - Single Stage
Hot Surface Ignition
Multiport Inshot
3
115/1/60
9.2
15
1/2
H x W x D
41-3/4 x 19-1/2 x 30-1/2
150 / 140
*UH1B080A9421C
Upflow / Horizontal
77,000
73,150
35 - 65
95 / 94.2
DIRECT
11 x 8
1
4
See Fan Performance Table
1/2
1075
115/1/60
Centrifugal
Direct - 1
1/20 - 3450
115/1/60
0.71
No
High Velocity
1 - 17x25 - 1in.
2 Round
Aluminized Steel - Type I
20
4 — 45
4 — 56
Redundant - Single Stage
Hot Surface Ignition
Multiport Inshot
4
115/1/60
10.2
15
1/2
H x W x D
41-3/4 x 19-1/2 x 30-1/2
158 / 148
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Related Manuals for Trane UH1B040A9241C Series
Summary of Contents for Trane UH1B040A9241C Series
- Page 1 6 All *UH1 and *DH1 furnace models have a vent outlet diameter that equals 2". NOTICE: Since the manufacturer has a policy of continuous product and product data improvement, it reserves the right to change design and specifications without notice. © 2017 Trane All Rights Reserved...
-
Page 2: Product Specifications
Service Facts PRODUCT SPECIFICATIONS MODEL *UH1C080A9601C *UH1C100A9481C *UH1D100A9601C *UH1D120A9601C TYPE Upflow / Horizontal Upflow / Horizontal Upflow / Horizontal Upflow / Horizontal RATINGS 2 Input BTUH 3 80,000 97,000 97,000 110,000 Capacity BTUH (ICS) 3 76,000 92,150 92,150 104,500 Temp. rise (Min.-Max.) °F. 30 - 60 35 - 65 35 - 65... - Page 3 Service Facts PRODUCT SPECIFICATIONS MODEL *DH1B040A9241C *DH1B065A9421C *DH1C085A9481C *DH1D110A9601C TYPE Downflow / Horizontal Downflow / Horizontal Downflow / Horizontal Downflow / Horizontal RATINGS 2 Input BTUH 3 40,000 60,000 80,000 110,000 Capacity BTUH (ICS) 3 38,000 57,000 76,000 104,500 Temp. rise (Min.-Max.) °F. 30 - 60 25 - 55 30 - 60...
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Page 4: Fire Or Explosion Hazard
Service Facts WARNING WARNING CARBON MONOXIDE POISONING HAZARD FIRE OR EXPLOSION HAZARD Failure to follow the safety warnings exactly could result Failure to follow the steps outlined below for each in serious injury, death or property damage. appliance connected to the venting system being Never test for gas leaks with an open flame. -
Page 5: Airflow Adjustment
Service Facts AIRFLOW ADJUSTMENT The following warning complies with State of California law, Proposition 65. Check inlet and outlet air temperatures to make sure they are within the ranges specified on the furnace rating name- WARNING plate. If the airflow needs to be increased or decreased, see the wiring diagram for information on changing the speed This product contains fiberglass wool insulation! of the blower motor. -
Page 6: Wiring Diagram
Service Facts WIRING DIAGRAM (continued on next page) From Dwg. D345803P01 Rev. A UH1-DH1-SF-1L... -
Page 7: Schematic Diagram
Service Facts SCHEMATIC DIAGRAM From Dwg. D345803P01 Rev. A UH1-DH1-SF-1L... - Page 8 Service Facts WIRING DIAGRAM (continued on next page) From Dwg. D345804P01 Rev. A UH1-DH1-SF-1L...
- Page 9 Service Facts SCHEMATIC DIAGRAM From D345804P01 Rev. A UH1-DH1-SF-1L...
-
Page 10: Periodic Servicing Requirements
Service Facts PERIODIC SERVICING REQUIREMENTS WARNING WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow the service and/or periodic maintenance Disconnect power to the unit before removing the blower instructions for the furnace and venting system, could door. result in carbon monoxide poisoning or death. Failure to follow this warning could result in personal injury from moving parts. -
Page 11: Cfm Vs. Temperature Rise
Service Facts FURNACE AIRFLOW (CFM) VS. EXTERNAL STATIC PRESSURE (in. w.c.) MODEL SPEED TAP 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 HIGH - Black 1043 MED.-HIGH - Blue *UH1B040A9241C MED.-LOW - Yellow** LOW - Red HIGH - Black 1359 1313 1264... - Page 12 Service Facts FURNACE AIRFLOW (CFM) VS. EXTERNAL STATIC PRESSURE (in. w.c.) MODEL SPEED TAP 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 HIGH - Black MED.-HIGH - Blue *DH1B040A9241C MED.-LOW - Yellow** LOW - Red HIGH - Black 1501 1453 1402 1344...
- Page 13 Service Facts Troubleshooting Flowchart Index 14) IFC Component Layout 15) LED Flash Codes 16) Getting started 17) 2 Flash Troubleshooting Retry and Recycle Lockout 19) 3 Flash Troubleshooting Pressure Switch Fault 20) 4 Flash Troubleshooting High Limit and Auxiliary Limit 21) 4 Flash Troubleshooting Roll Out Limit 22) 5 Flash Troubleshooting Flame Sensed Fault 23) 6 Flash Troubleshooting Polarity Revered or Poor Ground Fault...
- Page 14 Service Facts Integrated Furnace Control (IFC) Component Layout Single Stage 95% Condensing Furnace - Integrated Furnace Control (IFC) Component Layout Line Voltage Connections PARK PARK EAC-H LINE-H XFMR-H HUM-H LINE-N 4 PIN CONNECTOR IND-H Inducer HUM-N IGN-H Ignitor IND-N Inducer Neutral EAC-N IGN-N Ignitor Neutral...
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Page 15: Integrated Furnace Control Error Flash Codes
Service Facts Fault LED Flash Codes Definitions INTEGRATED FURNACE CONTROL ERROR FLASH CODES Flashing Slow --- Normal - No call for Heat Flashing Fast --- Normal - Call for Heat Continuous ON --- Replace IFC Continuous OFF --- Check Power 2 Flashes --- System Lockout (Retries or Recycles exceeded) 3 Flashes ---... -
Page 16: Getting Started
Service Facts GETTING STARTED Is high voltage Repair high voltage power supplied connection to unit. to the unit? Close and hold door switch Is 24VAC low voltage Are connections and present from transformer wiring in working Replace IFC Is the IFC LED flashing? and fuse good condition? Repair low voltage... - Page 17 Service Facts DEFINITION 2 Flash Fault LED RETRY Lock Out = 3 unsuccessful tries for ignition within a single call for heat Flame has never been sensed RECYCLE Lock Out = 10 recycles within a single call for heat. Flame is sensed & then lost Disconnect electrical power to furnace.
- Page 18 Service Facts UH1-DH1-SF-1L...
- Page 19 Service Facts 3 Flash Fault LED DEFINITION An error has occurred with the P.S. The error will be reported, indicating that the pressure switch is either opened or closed, contrary to normal operating sequence. Cycle power to In most cases, the pressure switch is furnace and call for not the problem.
- Page 20 Service Facts DEFINITION See next page for Limit switches are safety 4 Flash Fault LED additional 4 flash devices that will open faults when an abnormal high temperature has been sensed. Disconnect REMOVE ALL JUMPER electrical power to WIRING TO SWITCHES! furnace Under no circumstances, shall these switches be...
- Page 21 Service Facts DEFINITION: 4 Flash Fault LED Limit switches are safety devices that will open when an abnormal high temperature has been sensed. REMOVE ALL JUMPER WIRING TO SWITCHES! Downflow Models Under no circumstances, shall Is a Manual Reset, Flame only: these switches be left Rollout Switch open?
- Page 22 Service Facts DEFINITION: 5 Flash Fault LED Flame is sensed when it should not be sensed. Disconnect electrical power to furnace Turn off gas supply! Remove gas valve Are there signs of moisture or debris in the inlet gas screen? Inspect gas supply for leaks and have gas supplier check...
- Page 23 Service Facts DEFINITION: Ground Fault - Incoming or chassis ground connection is not sensed Polarity Fault – Incoming high 6 Flash Fault LED voltage wiring is reversed Line Voltage Too Low - Line voltage must not be below 97 VAC Connect volt meter to white incoming neutral wire and...
- Page 24 Service Facts 7 Flash Fault LED DEFINITION: External Gas Valve Circuit Error (24 volts is present when it should not be present) Turn Comfort Control to “OFF” position Is 24 VAC nominal voltage present between Red lead at gas Correct wiring valve connection to chassis Check operation ground?
- Page 25 Service Facts 8 Flash Fault LED DEFINITION: The flame sense current is less than 1 micro-amp DC Disconnect electrical power to the furnace Meter must be set up Connect volt meter for DC micro-amp leads in series with scale flame sensor Cycle power to furnace and call Is flame sensor...
- Page 26 Service Facts DEFINITION: Igniter Relay Fault – The control board has sensed 9 Flash Fault LED that the igniter relay has stuck closed Ignitor Fault – The control board has sensed that the ignitor circuit is open or shorted. Make a call for heating Igniter is good Does igniter...
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Page 27: Troubleshooting
Service Facts TROUBLESHOOTING Furnace PSC fan motor - No Air Flow Turn the FAN switch to “ON” at the thermostat Is there any air flow? Check for dirty air filter, duct work damage or Is the fan wheel restrictions around the running? furnace coil and repair as needed... - Page 28 Service Facts Literature Order Number UH1-DH1-SF-1L File Number UH1-DH1-SF-1L Supersedes UH1-DH1-SF-1K Trane 6200 Troup Highway Date 03/17 Tyler, TX 75707 Since the manufacturer has a policy of continuous product and product data improvement, it reserves the For more information contact right to change design and specifications without notice.
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Questions and answers
Furnace runs only cold air output
The Trane UH1B040A9241C Series furnace may only produce cold air due to issues related to the ignition system, gas flow, or blower operation. Possible causes include:
1. Igniter Relay Fault – If the igniter relay is faulty (9 flash fault), the furnace will not ignite properly.
2. Low Flame Sense Fault – A low flame sense fault (8 flash fault) could prevent the burners from staying lit.
3. External Gas Valve Circuit Fault – If the external gas valve circuit is faulty (7 flash fault), gas may not be flowing to the burners.
4. Polarity Reversed or Poor Ground Fault – Improper wiring (6 flash fault) can prevent the furnace from operating correctly.
5. Flame Sensed Fault – If the furnace detects flame when there should be none (5 flash fault), it may shut down ignition.
6. Pressure Switch or Main Valve Issues – A malfunctioning pressure switch or gas valve could prevent proper ignition.
7. Blower Motor Issues – A non-functioning blower motor may prevent warm air from circulating.
A qualified technician should inspect the furnace to diagnose and resolve the issue.
This answer is automatically generated