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Trane A952V040BU3SB Installation, Operation And Maintenance Manual

Upflow/horizontal and dedicated downflow gas-fired, direct/non-direct vent, 2-stage condensing variable speed furnaces
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Installation, Operation, and Maintenance
Upflow/Horizontal and Dedicated
Downflow Gas-Fired, Direct/Non-Direct Vent,
2-Stage Condensing Variable Speed Furnaces
U U p p f f l l o o w w , , C C o o n n v v e e r r t t i i b b l l e e t t o o
H H o o r r i i z z o o n n t t a a l l R R i i g g h h t t o o r r
H H o o r r i i z z o o n n t t a a l l L L e e f f t t
A952V040BU3SB
A952V060BU4SB
A952V080BU4SB
A952V080CU5SB
A952V100CU5SB
A952V120DU5SB
WARNING
FIRE HAZARD!
Failure to follow this Warning could result in property damage, severe personal
injury, or death.
This Warning applies to installations with a ammable refrigeration system.
The furnace must be powered except for service. The furnace shall be installed
and connected according to installation instructions and wiring diagrams that
are provided with the evaporator coil.
CAUTION
!
COIL REQUIREMENT!
Failure to follow this Caution could result in property damage or personal injury. 4GXC* and
4MXC* coils installed on upflow furnaces in vertical, horizontal left, or horizontal right
orientations without a factory installed metal drain pan shield must use a MAY*FERCOLKITAA
kit. Coils installed on upflow furnaces must have drain pans that are suitable for 400° F
(205°C) or have a metal drain pan shield. Downflow furnaces do not require a metal drain pan
shield or the use of the MAY*FERCOLKITAA kit.
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning
equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person
could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that
are attached to the equipment.
September 2023
D D o o w w n n f f l l o o w w O O n n l l y y
A952V040BD3SB
A952V060BD3SB
A952V080BD4SB
A952V100CD5SB
A952V120DD5SB
S S A A F F E E T T Y Y W W A A R R N N I I N N G G
A A 9 9 5 5 2 2 V V - - S S V V X X 0 0 0 0 1 1 - - 1 1 B B - - E E N N
N N o o t t e e : : Graphics in this document are for
representation only. Actual model may differ in
appearance.

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  • Page 1 H H o o r r i i z z o o n n t t a a l l R R i i g g h h t t o o r r A952V040BD3SB H H o o r r i i z z o o n n t t a a l l L L e e f f t t A952V060BD3SB A952V040BU3SB A952V080BD4SB A952V060BU4SB A952V100CD5SB...
  • Page 2 SAFETY SECTION — FURNACES I I m m p p o o r r t t a a n n t t : : — This document pack contains a wiring W W A A R R N N I I N N G G diagram and service information.
  • Page 3 S S A A F F E E T T Y Y S S E E C C T T I I O O N N — — F F U U R R N N A A C C E E S S W W A A R R N N I I N N G G W W A A R R N N I I N N G G W W A A R R N N I I N N G G ! !
  • Page 4 S S A A F F E E T T Y Y S S E E C C T T I I O O N N — — F F U U R R N N A A C C E E S S W W A A R R N N I I N N G G W W A A R R N N I I N N G G E E X X P P L L O O S S I I O O N N H H A A Z Z A A R R D D ! !
  • Page 5 S S A A F F E E T T Y Y S S E E C C T T I I O O N N — — F F U U R R N N A A C C E E S S C C A A U U T T I I O O N N C C A A U U T T I I O O N N I I M M P P R R O O P P E E R R V V O O L L T T A A G G E E C C O O N N N N E E C C T T I I O O N N ! !
  • Page 6 S S A A F F E E T T Y Y S S E E C C T T I I O O N N — — F F U U R R N N A A C C E E S S C C A A U U T T I I O O N N W W A A R R N N I I N N G G H H O O T T S S U U R R F F A A C C E E ! !
  • Page 7 For more information, visit www.trane.com and www.

  • Page 8: Table Of Contents

    Table of Contents Accessories....... . . 9 Condensate Drain Instructions... . . 66 Document Pack Contents .

  • Page 9: Accessories

    Accessories Table 1. Accessories Description Model Number Use with Horizontal Hanging Kit All Upflow Furnaces BAYHANG BAYVENT200B Sidewall Vent Termination Kit All Furnaces Sidewall Vent Termination Kit (Canada —CPVC) BAYVENTCN200B All Furnaces BAYAIR30AVENTA Concentric Vent Kit All Furnaces Concentric Vent Kit (Canada — CPVC) BAYAIR30CNVENT All Furnaces Reducing Coupling (CPVC)

  • Page 10: Document Pack Contents

    H H o o r r i i z z o o n n t t a a l l R R i i g g h h t t o o r r A952V040BD3SB H H o o r r i i z z o o n n t t a a l l L L e e f f t t A952V060BD3SB Outlet Vent Assembly A952V040BU3SB A952V080BD4SB A952V060BU4SB A952V100CD5SB A952V080BU4SB...

  • Page 11: Product Specification

    Product Specification A952V040BU A952V060BU A952V080BU A952V080CU A952V100CU A952V120DU Model Type Upflow / Horizontal RATINGS 1st Stage Input BTUH 26,000 39,000 52,000 52,000 65,000 78,000 1st Stage Capacity BTUH (ICS) 25,300 38,100 50,500 50,600 63,400 75,500 2nd Stage Input BTUH 40,000 60,000 80,000 80,000...
  • Page 12 P P r r o o d d u u c c t t S S p p e e c c i i f f i i c c a a t t i i o o n n A952V040BD A952V060BD A952V080BD...

  • Page 13: Furnace Installation Guidelines

    Furnace Installation Guidelines The following sections give general guidelines for the e. A minimum 4” MERV 11 air filter must be in installation of the gas furnaces. place. 100% of the furnace combustion air requirement Safety Practices and Precautions must come from outside the structure. g.

  • Page 14: Locations And Clearances

    F F u u r r n n a a c c e e I I n n s s t t a a l l l l a a t t i i o o n n G G u u i i d d e e l l i i n n e e s s flue loss less than 17 percent.

  • Page 15: Outline Drawing

    Outline Drawing Table 2. 17.5”, 21” and 24.5” Upflow Cabinets A952V-SVX001-1B-EN...
  • Page 16 O O u u t t l l i i n n e e D D r r a a w w i i n n g g Table 3. 17.5”, 21” and 24.5” Downflow Cabinets A952V-SVX001-1B-EN...

  • Page 17: Wiring Diagrams

    Wiring Diagrams 120v 60 Hz. 1 PH NOTES: POWER SUPPLY PER LOCAL CODE 1. IF ANY OF THE ORIGINAL WIRING AS SUPPLIED WITH THIS FURNACE MUST BE REPLACED, IT MUST BE WITH WIRE HAVING A TEMPERATURE RATING OF AT LEAST 105°C. WIRES 12, 48, 49, 50, AND 51 REQUIRE A TEMPERATURE RATING OF AT LEAST 250°C. A952V JUNCTION BOX 2.

  • Page 18: Heating And Cooling Airflow Tables

    Heating and Cooling Airflow Tables Table 4. A952V040BU3SB Heating Airflow A952V040BU3SB Furnace Heating Airflow (CFM), Temp. Rise (°F), and Power (Watts) vs. External Static Pressure with Filter (iwc) 1st Stage Capacity = 25,300 2nd Stage Capacity = 38,950 External Static Pressure...
  • Page 19 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 6. A952V040BU3SB / A952V040BD3SB Cooling Airflow A952V040BU3SB/ A952V040BD3SB Furnace Cooling Airflow (CFM) and Power (Watts) vs. External Static Pressure with Filter (iwc)
  • Page 20 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 7.
  • Page 21 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 8.
  • Page 22 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 10.
  • Page 23 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 10.
  • Page 24 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 12.
  • Page 25 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 13.
  • Page 26 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 14.
  • Page 27 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 15.
  • Page 28 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 16.
  • Page 29 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 18.
  • Page 30 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 18.
  • Page 31 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 20.
  • Page 32 H H e e a a t t i i n n g g a a n n d d C C o o o o l l i i n n g g A A i i r r f f l l o o w w T T a a b b l l e e s s Table 21.

  • Page 33: Furnace General Installation

    Furnace General Installation The following sections give general instructions for the installation of the gas furnaces. Furnace Panel Removal H H o o r r i i z z o o n n t t a a l l I I n n s s t t a a l l l l a a t t i i o o n n H H a a n n g g i i n n g g U U s s i i n n g g S S t t r r a a p p s s The furnace may be installed hanging in a hanging N N o o t t e e : : Use a 1/4”...

  • Page 34: Gas Piping

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Gas Piping Important: When converting the gas piping from the factory default, the plug must be removed from the new gas piping location and swapped with the grommet from the default location.
  • Page 35 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Horizontal right furnace with gas piping out left side Horizontal right furnace with gas piping out right side Main Manual...

  • Page 36: Combustion And Input Check

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Combustion and Input Check Gas Valve Adjustment 1.

  • Page 37: High Altitude Derate

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n 10.

  • Page 38: General Venting

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Altitude Above Sea Level Orifice Twist Drill and Orifice Required at Other Elevations...

  • Page 39: Typical Venting

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Typical Venting 3 3 ”...

  • Page 40: Special Case Venting

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Option 1 Figure 3.

  • Page 41: Vent Terminations

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n O O p p t t i i o o n n 3 3 –...

  • Page 42: Attaching Vent Piping

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n W W A A R R N N I I N N G G Attic C C A A R R B B O O N N M M O O N N O O X X I I D D E E P P O O I I S S O O N N I I N N G G...
  • Page 43 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n 4.

  • Page 44: Maximum Vent Length Table

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Maximum Vent Length Table Maximum Total Equivalent Length in Feet Model...

  • Page 45: Horizontal Venting

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Horizontal Venting Note: Ensure that vent piping is sloped 1/4"...

  • Page 46: Horizontal Venting Through Wall

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Table 22.

  • Page 47: With Concentric Vent Kit

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Horizontal Venting Through Wall with Figure 4.
  • Page 48 The venting system installation instructions can be obtained from the manufacturer by writing to the following address: Trane and American Standard 6200 Troup Highway Tyler, TX 75707...
  • Page 49 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Non-Direct Vent Termination Clearances Canadian Installations US Installations...
  • Page 50 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Direct Vent Termination Clearances Canadian Installations US Installations...

  • Page 51: Venting Through The Roof

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Venting Through The Roof Support Horizontal pipe every 3’0”...
  • Page 52 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n When penetrating roof with PVC vent pipe, a flexible flashing may be used for a weather tight seal.

  • Page 53: Air For Combustion And Ventilation

    F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n Downward Venting Furnace may be in vertical or horizontal configuration.
  • Page 54 F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n •...

  • Page 55: Duct Connections

    Duct Connections For furnaces not equipped with a cooling coil, it is Air duct systems should be installed in accordance with standards for air conditioning systems, National Fire recommended that the outlet duct be provided with a removable access panel. The opening shall be Protection Association Pamphlet No.

  • Page 56: Supply Duct Connections

    D D u u c c t t C C o o n n n n e e c c t t i i o o n n s s Supply Duct Connections Note: The "Coil Requirement" caution is applicable to: C C A A U U T T I I O O N N Upflow furnace with coil, Furnace in horizontal left with coil and...
  • Page 57 D D u u c c t t C C o o n n n n e e c c t t i i o o n n s s Furnace in Horizontal Left with Coil Furnace in Horizontal Right with “A” Coil Note: There are no longer guide holes located on the furnace flange.
  • Page 58 D D u u c c t t C C o o n n n n e e c c t t i i o o n n s s Downflow Furnace with Coil Horizontal Right and Downflow Furnace — no Coil Important: A BAYBASE is required when installing the furnace on a combustible floor.

  • Page 59: Return Duct Connections

    D D u u c c t t C C o o n n n n e e c c t t i i o o n n s s Return Duct Connections Return Ducting General Guidelines • Back returns are not allowed on any S-Series Furnaces •...
  • Page 60 D D u u c c t t C C o o n n n n e e c c t t i i o o n n s s Upflow Furnace with Bottom and Side Returns Mounted on a Ducted Pedestal with Side Return and Filter Box Important: Make sure the condensate and thermostat wiring holes are sealed on the cabinet side with the side return.
  • Page 61 D D u u c c t t C C o o n n n n e e c c t t i i o o n n s s Upflow Furnace with Two Side Returns Downflow Furnace with Top Return Important: One of the sides must have a transition to allow the condensate and thermostat wiring to exit the cabinet.
  • Page 62 D D u u c c t t C C o o n n n n e e c c t t i i o o n n s s I I n n s s t t a a l l l l a a t t i i o o n n I I n n s s t t r r u u c c t t i i o o n n s s 13.

  • Page 63: Return Air Filters

    Return Air Filters UPFLOW FURNACES ONLY T T Y Y P P I I C C A A L L U U P P F F L L O O W W R R E E T T U U R R N N A A I I R R F F I I L L T T E E R R I I N N S S T T A A L L L L A A T T I I O O N N S S Filters are not factory supplied for upflow furnaces.
  • Page 64 R R e e t t u u r r n n A A i i r r F F i i l l t t e e r r s s T T Y Y P P I I C C A A L L D D O O W W N N F F L L O O W W F F U U R R N N A A C C E E R R E E T T U U R R N N A A I I R R Figure 7.

  • Page 65: Electrical Connections

    Electrical Connections Make wiring connections to the unit as indicated on enclosed wiring diagram. As with all gas appliances using electrical power, this furnace shall be connected into a permanently live electric circuit. It is recommended that furnace be provided with a separate "circuit protection device" electric circuit.

  • Page 66: Condensate Drain Instructions

    Condensate Drain Instructions The following sections give general instructions for the C C A A U U T T I I O O N N installation of the gas furnace condensate drains. W W a a t t e e r r D D a a m m a a g g e e / / P P r r o o p p e e r r t t y y D D a a m m a a g g e e ! ! Repositioning of the condensate trap is covered in the I I t t i i s s r r e e c c o o m m m m e e n n d d e e d d t t h h a a t t a a d d r r a a i i n n p p a a n n b b e e i i n n s s t t a a l l l l e e d d exhaust air options section.

  • Page 67: Vertical Applications

    C C o o n n d d e e n n s s a a t t e e D D r r a a i i n n I I n n s s t t r r u u c c t t i i o o n n s s Vertical Applications VERTICAL APPLICATIONS Note: For easiest installation, remove the spring clip from the end of...
  • Page 68 C C o o n n d d e e n n s s a a t t e e D D r r a a i i n n I I n n s s t t r r u u c c t t i i o o n n s s Downflow furnace - Cut the 90 degree section of the condensate tubing off and connect the tubing to the condensate trap.
  • Page 69 C C o o n n d d e e n n s s a a t t e e D D r r a a i i n n I I n n s s t t r r u u c c t t i i o o n n s s Attaching the condensate drain line.

  • Page 70: Horizontal Applications

    C C o o n n d d e e n n s s a a t t e e D D r r a a i i n n I I n n s s t t r r u u c c t t i i o o n n s s Horizontal Applications HORIZONTAL APPLICATIONS Upflow models in horizontal - It is always recommended that the...

  • Page 71: General Start-Up And Adjustment

    General Start-up and Adjustment The following sections give instructions for the general T T o o s s h h u u t t o o f f f f start-up and adjustment of the gas furnaces. For complete shutdown: Turn the toggle or control switch located on the main gas valve inside the unit to Preliminary Inspections the "OFF"...

  • Page 72: Options

    Furnace Combustion Air Exhaust Options Important: All plugs must be in place for sealed combustion. Note: If the electrical and natural gas connections are moved to the right side, remove the plugs and move them to the left side. Note: Default is left side for electric and natural gas connections. The grommets will move from the left side to the right side.
  • Page 73 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s Table 26.

  • Page 74: Upflow Furnace In Upflow Position - Top Vented Combustion Air

    F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s Upflow Furnace in Upflow 4.

  • Page 75: Upflow Furnace In Upflow Position - Left Side Vented Combustion Air

    F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s Upflow Furnace in Upflow Position - Left Side Vented Combustion Air...
  • Page 76 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s 9.

  • Page 77: Upflow Furnace In Horizontal Left

    F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s 23.
  • Page 78 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s 7.
  • Page 79 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s C C o o n n d d e e n n s s a a t t e e T T r r a a p p I I n n s s t t a a l l l l a a t t i i o o n n 22.

  • Page 80: Upflow Furnace In Horizontal Left

    F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s Upflow Furnace in Horizontal Left Position - Side Vented Combustion Air Changes do not need to be made to the inducer...
  • Page 81 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s 3.
  • Page 82 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s C C o o n n d d e e n n s s a a t t e e T T r r a a p p I I n n s s t t a a l l l l a a t t i i o o n n 19.

  • Page 83: Upflow Furnace In Horizontal Right

    F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s Upflow Furnace in Horizontal Right Position - Top Vented Combustion Air Changes need to be made to the inducer orientation...
  • Page 84 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s 15.
  • Page 85 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s I I m m p p o o r r t t a a n n t t : : When installing a 21.0”...

  • Page 86: Air

    F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s 27.
  • Page 87 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s 8.
  • Page 88 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s 20.

  • Page 89: Combustion Air

    F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s I I m m p p o o r r t t a a n n t t : : When installing a 21.0”...

  • Page 90: Downflow Furnace - Left Side Vented

    F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s N N o o t t e e : : If required, transition to larger venting within 2' of the cabinet.
  • Page 91 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s 6.
  • Page 92 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s 15.
  • Page 93 F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s 26.

  • Page 94: Integrated Furnace Control Menu

    Integrated Furnace Control Menu A952V-SVX001-1B-EN...
  • Page 95 I I n n t t e e g g r r a a t t e e d d F F u u r r n n a a c c e e C C o o n n t t r r o o l l M M e e n n u u A952V-SVX001-1B-EN...
  • Page 96 I I n n t t e e g g r r a a t t e e d d F F u u r r n n a a c c e e C C o o n n t t r r o o l l M M e e n n u u Note: During run test mode, depressing the option key will allow the user to hold (HLD) that test sequence if measurements want to be taken.

  • Page 97: Belly Band Location

    Belly Band Location Distance from belly band to the front face of motor for minimum vibration For C Models only Furnace Cabinet Size Dimension “A” (inches) 2.705 1.790 1.790 For D Models only Furnace Cabinet Size Dimension “A” (inches) 2.75 Blower housings and wheel removed 3.54 from view for clarity.

  • Page 98: Codes

    Integrated Furnace Control Display Codes 2 Stage Inducer with ECM Blower Motor Status Codes Idle First Stage Heating Second Stage Heating Calculated airflow times 10 (080=800 CFM) Continuous Fan First Stage Cooling Second Stage Cooling First Stage Heat Pump Second Stage Heat Pump Defrost Mode Menu Options Active Alarm Menu...

  • Page 99: Fault Code Recovery

    I I n n t t e e g g r r a a t t e e d d F F u u r r n n a a c c e e C C o o n n t t r r o o l l D D i i s s p p l l a a y y C C o o d d e e s s Voltage reversed polarity e6.! Bad grounding...

  • Page 100: Troubleshooting

    Troubleshooting The following pages include troubleshoo ng flowcharts in reference for the 2 Stage A952V family of furnaces only. The informa on contained is for reference only and does not cover all scenarios or problems that may be encountered. ONLY qualified technicians should a empt to install, troubleshoot, or repair this appliance. Failure to follow all cau ons and /or warnings could result in personal or property damage, including death.
  • Page 101 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g IFC Component Layout EAC, HUM LINE Neutral Inducer/Igniter Dry Contacts Connections Connections Connector...
  • Page 102 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g GETTING STARTED Is 120 VAC Is 120 VAC Is 120 VAC measured Is the IFC Seven measured between measured at...
  • Page 103 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g DEFINITION 2.1 Fault Code RETRY Lock Out = 3 unsuccessful tries for igni on within a single call for heat.
  • Page 104 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g DEFINITION 2.2 Fault Code RECYCLE Lock Out = 10 recycles within a single call for heat.
  • Page 105 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g DEFINITION Stage Gas Valve not energized when it should 2.3 Fault Code be 10 mes within the same call for heat .
  • Page 106 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g Note #1 24 volts = Open Switch DEFINITION 0 volts = Closed Switch An error has occurred with the PS1 indica ng that the pressure switch is open when it should be closed.
  • Page 107 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g DEFINITION An error has occurred with the PS2, indica ng that the Note #1 pressure switch is closed when it should be open.
  • Page 108 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g Note #1 DEFINITION An error has occurred with the PS2 indica ng that the pressure 24 volts = Open Switch switch is open when it should be closed.
  • Page 109 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g DEFINITION See next page for 04 Fault Code Limit switches are safety devices addi onal 04 faults that will open when an abnormal high temperature has been sensed.
  • Page 110 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g 04 Fault Code DEFINITION Flame Rollout Limit switches are safety devices that will open when an abnormal high temperature has been sensed.
  • Page 111 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g DEFINITION: 05 Fault Code Flame is sensed when it should not be. Is flame seen with no call for heat?
  • Page 112 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g Polarity Fault – Incoming high voltage 06 Fault Code wiring is reversed Reversed Polarity Ensure that high voltage wiring to unit is connected properly...
  • Page 113 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g 06 Fault Code Ground Fault - Incoming or chassis ground connec on is not sensed Faulty Ground Connect volt meter to black incoming...
  • Page 114 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g DEFINITION: Igniter Relay Fault – The control board has sensed 6.3 Fault Code that the igniter relay has stuck closed Ignitor Fault –...
  • Page 115 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g DEFINITION: External Gas Valve 7.1 Fault Code Circuit Error (24 volts is present when it should not be present) Remove any hea ng call...
  • Page 116 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g DEFINITION: 08 Fault Code The flame sense current is less than 0.5 micro-amp DC Make a call for 1 stage hea ng...
  • Page 117 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g 09 Fault Code Defini on: Condensate Pressure Switch Open: The condensate system is not free flowing and opened the safety switch OR Inducer Limit: This error is normally caused by improper installa on or applica on of the furnace ven ng system.
  • Page 118 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g Defini on 11 Fault Code The IFC has detected that internal gas valve relays have failed OR 24 VAC is being sensed at 2 stage gas valve Remove any hea ng...
  • Page 119 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g DEFINITION: This fault is generated when the HP or 13 Fault Code OEM ID of the blower motor does not match the value that is programmed on the Personality Module...
  • Page 120 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g DEFINITION: 15 Fault Code This fault is generated when the PM and the IFC informa on is corrupted Disconnect power Possible causes...
  • Page 121 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g DEFINITION: 18 Fault Code This fault is generated when the IFC does not see a send message itelf.
  • Page 122 T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g Serial Motor Troubleshoo ng Is ~12VDC measured from terminals 1 (12V) and 3 (GND) at the IFC? Is 120 VAC measured at...

  • Page 123: Sequence Of Operation

    Sequence of Operation N N o o t t e e : : The seven segment LED readout is based on N N o o t t e e : : There are two flame sense pads located on thermostat input. During a simultaneous call for the IFC, marked “FP”.
  • Page 124 S S e e q q u u e e n n c c e e o o f f O O p p e e r r a a t t i i o o n n 4. When PS1 closes, the ignitor relay on the IFC will 13.
  • Page 125 S S e e q q u u e e n n c c e e o o f f O O p p e e r r a a t t i i o o n n ARF = Airflow 8.

  • Page 126: Periodic Servicing Requirements

    Periodic Servicing Requirements 1. GENERAL INSPECTION – E E x x a a m m i i n n e e t t h h e e f f u u r r n n a a c c e e N N o o t t e e : : Be careful NOT to break igniter when removing i i n n s s t t a a l l l l a a t t i i o o n n a a n n n n u u a a l l l l y y f f o o r r t t h h e e f f o o l l l l o o w w i i n n g g i i t t e e m m s s : : burners.
  • Page 127 N N o o t t e e s s A952V-SVX001-1B-EN...
  • Page 128 About Trane and American Standard Heating and Air Conditioning Trane and American Standard create comfortable, energy efficient indoor environments for residential applications. For more information, please visit www.trane.com or www.americanstandardair.com. The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.

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