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Ingersoll-Rand M952V080BU36AB Service Facts
Ingersoll-Rand M952V080BU36AB Service Facts

Ingersoll-Rand M952V080BU36AB Service Facts

Gas furnace, var. speed ecm blower, var. speed inducer, two stage heat, direct vent
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Service Facts
Gas Furnace – Var. Speed ECM Blower
– Var. Speed Inducer – Two Stage Heat
– Direct Vent
Models:
M952V060BU36AB
M952V080BU36AB
M952V100CU48AB
M952V120DU60AB
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
1st Stage Input BTUH
1st Stage Capacity BTUH (ICS) 3
2nd Stage Input BTUH
2nd Stage Capacity BTUH (ICS) 3
AFUE
Temp. rise (Min.-Max.) °F.
BLOWER DRIVE
Diameter - Width (In.)
No. Used
Speeds (No.)
CFM vs. in. w.g.
Motor HP
R.P.M.
Volts / Ph / Hz
FLA
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.)
5
HEAT EXCHANGER
Type -Fired
-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)
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 Energy Star
NOTICE: The manufacturer has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
© 2017 Ingersoll Rand
All Rights Reserved
M952V060BD36AB
M952V080BD36AB
M952V100CD48AB
M952V120DD60AB
DISCONNECT POWER BEFORE SERVICING
PRODUCT SPECIFICATIONS
M952V060BU36AB
6
Upflow / Horizontal
39,000
38,000
60,000
58,000
97.0
35 - 65
DIRECT
10 x 8
1
Variable
See Fan Performance Table
See Fan Performance Table
1/2
Variable
115/1/60
7.7
Centrifugal
Direct - Variable
1/50 - 5000
33 - 110/3/60 - 180
1.0
Yes
High Velocity
1 - 17x25 - 1 in.
2 Round
Aluminized Steel - Type I
20
3 — 45
3 — 56
Redundant - Two Stage
Hot Surface Igniter
Multiport Inshot
3
115/1/60
10.8
15
1/2
H x W x D
41-3/4 x 19-1/2 x 30-1/2
158 / 146
M952V080BU36AB
6
Upflow / Horizontal
52,000
51,000
80,000
78,000
97.0
35 - 65
DIRECT
10 x 8
1
Variable
See Fan Performance Table
1/2
Variable
115/1/60
7.7
Centrifugal
Direct - Variable
1/50 - 5000
33 - 110/3/60 - 180
1.0
Yes
High Velocity
1 - 17x25 - 1 in.
2 Round
Aluminized Steel - Type I
Aluminized Steel - Type I
20
4 — 45
4 — 56
Redundant - Two Stage
Hot Surface Igniter
Multiport Inshot
4
115/1/60
10.8
15
1/2
H x W x D
41-3/4 x 19-1/2 x 30-1/2
168 / 156
M952-SF-4
1
M952V100CU48AB
M952V120DU60AB
6
Upflow / Horizontal
65,000
63,000
100,000
97,000
96.7
35 - 65
DIRECT
10 x 10
1
Variable
See Fan Performance Table
3/4
Variable
115/1/60
9.6
Centrifugal
Direct - Variable
1/50 - 5000
33 - 110/3/60 - 180
1.0
Yes
High Velocity
1 - 20x25 - 1 in.
2.5 Round
Aluminized Steel - Type I
20
5 — 45
5 — 56
Redundant - Two Stage
Redundant - Two Stage
Hot Surface Igniter
Multiport Inshot
5
115/1/60
13.2
15
1/2
H x W x D
41-3/4 x 23 x 30-1/2
41-3/4 x 26-1/2 x 30-1/2
197 / 185
6
Upflow / Horizontal
78,000
77,000
120,000
116,000
96.7
40 - 70
DIRECT
10 x 10
1
Variable
1
Variable
115/1/60
12.8
Centrifugal
Direct - Variable
1/50 - 5000
33 - 110/3/60 - 180
1.0
Yes
High Velocity
1 - 24x25 - 1 in.
3 Round
20
6 — 45
6 — 56
Hot Surface Igniter
Multiport Inshot
6
115/1/60
17.2
20
1/2
H x W x D
206 / 193

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Summary of Contents for Ingersoll-Rand M952V080BU36AB

  • Page 1 Gas Furnace – Var. Speed ECM Blower – Var. Speed Inducer – Two Stage Heat – Direct Vent Models: M952V060BU36AB M952V060BD36AB M952V080BU36AB M952V080BD36AB M952V100CU48AB M952V100CD48AB M952V120DU60AB M952V120DD60AB IMPORTANT — This document contains a wiring diagram and service information. This is customer property and is to remain with this unit.
  • Page 2: Product Specifications

    Service Facts PRODUCT SPECIFICATIONS MODEL M952V060BD36AB M952V080BD36AB M952V100CD48AB M952V120DD60AB TYPE Downflow / Horizontal Downflow / Horizontal Downflow / Horizontal Downflow / Horizontal RATINGS 2 1st Stage Input BTUH 39,000 52,000 65,000 78,000 1st Stage Capacity BTUH (ICS) 3 38,000 51,000 63,000 76,000 2nd Stage Input BTUH...
  • Page 3: Safety Section

    Service Facts SAFETY SECTION WARNING WARNING CARBON MONOXIDE POISONING HAZARD FIRE OR EXPLOSION HAZARD FAILURE TO FOLLOW THE SAFETY WARNINGS EXACTLY Failure to follow the steps outlined below for each COULD RESULT IN SERIOUS INJURY, DEATH OR PROP- appliance connected to the venting system being ERTY DAMAGE.
  • Page 4: Sequence Of Operation

    Service Facts CAUTION The following warning complies with State of California law, Proposition 65. WARNING Label all wires prior to disconnection when servicing con- trols. Wiring errors can cause improper and dangerous This product contains fiberglass wool insulation! operation. Verify proper operation after servicing. Fiberglass dust and ceramic fibers are believed by the CAUTION State of California to cause cancer through inhalation.
  • Page 5 Service Facts 2nd Stage satisfied, 1st Stage still called: Table 1 and Figure 1 explain the delay-off settings: W2 Comfort Control contacts open signaling that 2nd Stage Table 1 Heating requirements are satisfied. The induced draft blower is reduced to low speed allowing COOLING OFF - DELAY OPTIONS the 2nd Stage Pressure Switch contacts to open and the Gas NOMINAL...
  • Page 6: Periodic Servicing Requirements

    Service Facts PERIODIC SERVICING REQUIREMENTS CAUTION WARNING Do NOT touch igniter. It is extremely hot. ELECTRIC SHOCK HAZARD IGNITER – This unit has a hot surface direct ignition DISCONNECT POWER TO THE UNIT BEFORE REMOVING device that automatically lights the burners. Please note THE BLOWER DOOR.
  • Page 7 Service Facts M952 WIRING DIAGRAM From drawing D345191P01 M952-SF-4...
  • Page 8 Service Facts M952 SCHEMATIC DIAGRAM2 From drawing D345191P01 M952-SF-4...
  • Page 9 Service Facts M952 WIRING DIAGRAM From drawing D345192 M952-SF-4...
  • Page 10 Service Facts M952 SCHEMATIC DIAGRAM From drawing D345192 M952-SF-4...
  • Page 11: Quick Check

    Service Facts Quick Check Motor Will Not Run ECM-2 QUICK CHECK Blower Motor Will Not Run These service procedures will work on ECM-2 motors and their motor con- trol board and their 16 Wire Low Voltage Control Cable. 1. Jumper 24 Volt A.C. "R" T erminal to "G" terminal on the Low Voltage T erminal board.
  • Page 12 Service Facts Quick Check Motor Will Not Run 3. Unplug 16 wire low voltage harness fr o m the motor. Jumper 24 Volts A.C. to motor low voltage plug pins #12 and #15 and pins #1 and #3 which are common. Does motor run? NO: Go to step #4.
  • Page 13 Service Facts Trouble Shooting Kit TROUBLESHOOTING ECM-2™ MOTOR WITH TROUBLESHOOTING CIRCUIT BOARD AND 4 WIRE TEST CABLE ECM-2™ TROUBLESHOOTER KIT Order P ub. No. 34-3403-0 Purpose: Verify proper signals are being received by the motor control board and are being sent to the ECM-2™...
  • Page 14 Service Facts Trouble Shooting Kit Dip Switch Operation 10. In order, turn on dip-switches 1 through 8, one at a time. 11. Verify that the corresponding L.E.D. on the trouble shooter is being turned on: Dip switch 1 on, L.E.D. DS-1 is on.
  • Page 15 Service Facts M952V060BU36AB FURNACE HEATING AIRFLOW (CFM) AND POWER (WATTS) VS. EXTERNAL STATIC PRESSURE WITH FILTER 1st Stage Capacity = 38,000 2nd Stage Capacity = 58,000 DIP SWITCH SETTING EXTERNAL STATIC PRESSURE AIRFLOW SETTING SW 7 SW 8 TEMP. RISE WATTS MEDIUM LOW TEMP.
  • Page 16 Service Facts M952V080BU36AB FURNACE HEATING AIRFLOW (CFM) AND POWER (WATTS) VS. EXTERNAL STATIC PRESSURE WITH FILTER 1st Stage Capacity = 51,000 2nd Stage Capacity = 78,000 DIP SWITCH SETTING EXTERNAL STATIC PRESSURE AIRFLOW SETTING SW 7 SW 8 TEMP. RISE...
  • Page 17 Service Facts M952V100CU48AB FURNACE HEATING AIRFLOW (CFM) AND POWER (WATTS) VS. EXTERNAL STATIC PRESSURE WITH FILTER 1st Stage Capacity = 63,000 2nd Stage Capacity = 97,000 DIP SWITCH SETTING EXTERNAL STATIC PRESSURE AIRFLOW SETTING SW 7 TEMP. RISE WATTS 1006 1022 1029 MEDIUM LOW...
  • Page 18 Service Facts M952V120DU60AB FURNACE HEATING AIRFLOW (CFM) AND POWER (WATTS) VS. EXTERNAL STATIC PRESSURE WITH FILTER 1st Stage Capacity = 77,000 2nd Stage Capacity = 116,000 DIP SWITCH SETTING EXTERNAL STATIC PRESSURE AIRFLOW SETTING SW 7 SW 8 1090 1120 1080 1070 1010...
  • Page 19 Service Facts M952V060BD36AB FURNACE HEATING AIRFLOW (CFM) AND POWER (WATTS) VS. EXTERNAL STATIC PRESSURE WITH FILTER 1st STAGE CAPACITY = 38,000 2nd STAGE CAPACITY = 59,000 DIP SWITCH SETTING EXTERNAL STATIC PRESSURE AIRFLOW SETTING SW 7 SW 8 TEMP. RISE WATTS MEDIUM LOW TEMP.
  • Page 20 Service Facts M952V080BD36AB FURNACE HEATING AIRFLOW (CFM) AND POWER (WATTS) VS. EXTERNAL STATIC PRESSURE WITH FILTER 1st STAGE CAPACITY = 51,000 2nd STAGE CAPACITY = 77,000 DIP SWITCH SETTING EXTERNAL STATIC PRESSURE AIRFLOW SETTING SW 7 SW 8 TEMP. RISE WATTS MEDIUM LOW TEMP.
  • Page 21 Service Facts M952V100CD48AB - FURNACE HEATING AIRFLOW (CFM) AND POWER (WATTS) VS. EXTERNAL STATIC PRESSURE WITH FILTER 1st STAGE CAPACITY = 63,000 2nd STAGE CAPACITY = 96,000 DIP SWITCH SETTING EXTERNAL STATIC PRESSURE AIRFLOW SETTING SW 7 SW 8 TEMP. RISE WATTS 1020 1047...
  • Page 22 Service Facts M952V120DD60AB - FURNACE HEATING AIRFLOW (CFM) AND POWER (WATTS) VS. EXTERNAL STATIC PRESSURE WITH FILTER 1st STAGE CAPACITY = 76,000 2nd STAGE CAPACITY = 116,000 DIP SWITCH SETTING EXTERNAL STATIC PRESSURE AIRFLOW SETTING SW 8 SW 7 1025 1025 1000 1000...
  • Page 23 Service Facts CFM VS. TEMPERATURE RISE Cubic Feet Per Minute (CFM) MODEL 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 M952V060BU36AB M952V060BD36AB M952V080BU36AB M952V080BD36AB M952V100CU48AB M952V100CD48AB M952V120DU60AB M952V120DD60AB INTEGRATED FURNACE CONTROL LED FLASH CODES...
  • Page 24 Service Facts HUMIDISTAT HOOKUP If an optional humidistat is to be connected between “R” The factory installed jumper between and “BK”, the factory installed jumper between “R” and “BK” “R” and “BK” on the circuit board on the circuit board must be cut. If an optional Humidistat is must be cut if an optional Humidistat used, the jumper must also be cut when applying an airflow is installed.
  • Page 25 Service Facts Troubleshooting Flowchart Index 26) IFC Component Layout 27) LED Flash Codes 28) Getting started 29) 2 Flash Troubleshooting Retry and Recycle Lockout 31) 3 Flash Troubleshooting Pressure Switch Fault 32) 4 Flash Troubleshooting High Limit and Auxiliary Limit 33) 4 Flash Troubleshooting Roll Out Switch 34) 5 Flash Troubleshooting Flame Sensed Fault 35) 6 Flash Troubleshooting Polarity Revered...
  • Page 26 Service Facts Integrated Furnace Control (IFC) Component Layout CNT05160 1 - BK/6 2 - RD/6 3 - WH/6 4 - N/A HUM-N CIR-N LINE-IN EAC-N 1 2 3 4 Line Voltage CIR-H XFMR-N Connections XFMR-H Fault LED (Red) LINE-H W1/W2 Staging EAC-H Delay HUM-H...
  • Page 27 Service Facts Fault LED Flash Codes Definitions INTEGRATED FURNACE CONTROL LED FLASH CODES RED LED - LitePort DATA - 1 FLASH EVERY 20 SECONDS 2 Flashes --- RETRIES OR RECYCLES EXCEEDED 3 Flashes --- INDUCER OR PRESSURE SWITCH ERROR 4 Flashes --- OPEN LIMIT OR ROLLOUT SWITCH 5 Flashes --- FLAME SENSED WHEN NO FLAME SHOULD BE PRESENT...
  • Page 28: 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 29 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 Disconnect electrical power to furnace. RECYCLE Lock Out = 10 recycles within a Connect manometer single call for heat.
  • Page 30 Service Facts Igniter slightly overlapping OD of burner. Correct positioning of ignitor sensor. NOTE the slight over lap of the ignitor and the burner. M952-SF-4...
  • Page 31 Service Facts DEFINITION An error has occurred with the PS1 or PS2. Note #1 The error will be reported, indicating that the pressure switch 3 Flash Fault LED 24 volts = Open Switch is either opened or closed, contrary to normal operating 0 volts = Closed Switch sequence.
  • Page 32 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 33 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! Is a Manual Reset, Under no circumstances, shall Flame Rollout these switches be left Switch open? jumpered when not troubleshooting.
  • Page 34 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 35 Service Facts DEFINITION: 6 Flash Fault LED Polarity Fault – Incoming high voltage wiring is reversed Disconnect incoming electrical power to furnace Reverse 120 vac power leads to furnace wiring Reconnect power Check operation M952-SF-4...
  • Page 36 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 37 Service Facts M952-SF-4...
  • Page 38 Service Facts Definition: 9 Flash Fault LED This error is normally caused by improper installation or application of the furnace venting system. Disconnect electrical power from the furnace and remove 1 wire from the limit switch. Is continuity Inducer limit switch is measured across open.
  • Page 39 Service Facts VS No Air Flow / Incorrect Air Flow Does the CFM light flash Check for dirty air filter, duct Is the fan wheel Does system have rate match programmed work damage or restrictions running? proper air flow? air flow? around the air handler coil and repair as needed.
  • Page 40 Ingersoll Rand 6200 Troup Highway Tyler, TX 75707 The manufacturer has a policy of continuous product and product data improvement and reserves the right to For more information contact your local dealer change design and specifications without notice.