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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.

August 2019

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Upflow/Horizontal and Downflow
Gas-Fired, Direct/Non-Direct Vent, 2–Stage
Condensing Variable Speed Furnaces

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A952V040BU3SAA
A952V060BU3SAA
A952V060BU4SAA
A952V080BU4SAA
A952V080CU5SAA
A952V100CU4SAA
A952V100CU5SAA
A952V120DU5SAA

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A952V040BD3SAA
A952V060BD3SAA
A952V080BD4SAA
A952V100CD4SAA
A952V100CD5SAA
A952V120DD5SAA

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e:: Graphics in this document are for

representation only. Actual model may
differ in appearance.

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. See Installer’s Guide for more information.

Installer’s Guide

Summary of Contents for A952V040BD3SAA

Page 1: ...h ht t o or r H Ho or ri iz zo on nt ta al l L Le ef ft t A952V040BU3SAA A952V060BU3SAA A952V060BU4SAA A952V080BU4SAA A952V080CU5SAA A952V100CU4SAA A952V100CU5SAA A952V120DU5SAA D Do ow wn nf fl lo ow...

Page 2: ...ea at th h o or r p pr ro op pe er rt ty y d da am ma ag ge e N Ne ev ve er r t te es st t f fo or r g ga as s l le ea ak ks s w wi it th h a an n o op pe en n f fl la am me e U Us se e a a c co om mm...

Page 3: ...e el l l lo oo op p b by y a an ny y p pe er rm ma an ne en nt t m me ea an ns s W WA AR RN NI IN NG G E EL LE EC CT TR RI IC CA AL L S SH HO OC CK K H HA AZ ZA AR RD D F Fa ai il lu ur re e t to o f...

Page 4: ...n p pr ro op pe er rt ty y d da am ma ag ge e s se ev ve er re e p pe er rs so on na al l i in nj ju ur ry y o or r d de ea at th h D Do o n no ot t i in ns st ta al ll l t th he e f fi il lt te er r...

Page 5: ...E EE EZ ZE E C CA AU UT TI IO ON N F Fa ai il lu ur re e t to o f fo ol ll lo ow w t th hi is s C Ca au ut ti io on n c co ou ul ld d r re es su ul lt t i in n p pr ro op pe er rt ty y d da am ma ag g...

Page 6: ...l p pi it tc ch h a as s r re eq qu ui ir re ed d i in n t th he e N Na at ti io on na al l F Fu ue el l G Ga as s C Co od de e A AN NS SI I Z Z2 22 23 3 1 1 N NF FP PA A 5 54 4 o or r t th he e C CS...

Page 7: ...s se ea al le ed d T Th he e 9 90 0 e el lb bo ow w c co on nn ne ec ct ti io on n t to o v ve er rt ti ic ca al l p pi ip pe e m mu us st t b be e s se ea al le ed d t to o p pr re ev ve en nt t c co...

Page 8: ...eld Wiring 58 Condensate Drain Instructions 60 60 Vertical Applications 61 Horizontal Applications 65 General Start up and Adjustment 66 Preliminary Inspections 66 Lighting Instructions 66 Control and...

Page 9: ...RN NI IN NG G 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 re...

Page 10: ...process and verify furnace operating conditions including ignition input rate temperature rise and venting according to the manufacturer s instructions 10 I In n t th he e C Co om mm mo on nw we ea al...

Page 11: ...urnace combustion air openings in the front panel and any closed panel or door provided 5 Are the ventilation and combustion air openings large enough and will they remain unobstructed If outside air...

Page 12: ...12 88 A952V001 1B EN Outline Drawings Upflow Furnace B Size Cabinet...

Page 13: ...88 A952V001 1B EN 13 Upflow Furnace C Size Cabinet O Ou ut tl li in ne e D Dr ra aw wi in ng gs s...

Page 14: ...14 88 A952V001 1B EN Upflow Furnace D Size Cabinet O Ou ut tl li in ne e D Dr ra aw wi in ng gs s...

Page 15: ...88 A952V001 1B EN 15 Downflow Furnace B Size Cabinet O Ou ut tl li in ne e D Dr ra aw wi in ng gs s...

Page 16: ...16 88 A952V001 1B EN Downflow Furnace C Size Cabinet O Ou ut tl li in ne e D Dr ra aw wi in ng gs s...

Page 17: ...88 A952V001 1B EN 17 Downflow Furnace D Size Cabinet O Ou ut tl li in ne e D Dr ra aw wi in ng gs s...

Page 18: ...be placed horizontally in a crawl space on a pad or other noncombustible material which will raise the unit for sufficient protection from moisture The Furnace must be supported at both ends and the...

Page 19: ...as Line Grommet 1 8 NPT Test Fitting Upflow furnace with gas piping on right side Automatic Gas Valve with Manual Shut off Main Manual Shut off Valve Ground Union Joint Drip Leg Gas Line Grommet 1 8 N...

Page 20: ...1 8 NPT Test Fitting Horizontal left furnace with gas piping out right side Automatic Gas Valve with Manual Shut off Main Manual Shut off Valve Ground Union Joint Drip Leg Gas Line Grommet 1 8 NPT Te...

Page 21: ...sing its individual manual shut off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 psig 3 5 kPa Note Maximum pressure to the gas valve fo...

Page 22: ...utility company and compare to the nameplate rating This must not exceed the nameplate rating Gas Flow in Cubic Feet Per Hour 2 Cubic Foot Dial Sec Flow Sec Flow Sec Flow Sec Flow 10 732 31 236 52 14...

Page 23: ...high altitude d Replace and tighten the regulator cover screw securely 6 Adjust 1st stage gas heat by removing the low LO adjustment regulator cover screw a To increase outlet pressure turn the regul...

Page 24: ...CES DRILL SIZE PART NUMBER DRILL SIZE PART NUMBER 44 ORF00501 54 ORF00555 45 ORF00644 55 ORF00693 46 ORF00909 56 ORF00907 47 ORF00910 57 ORF00908 48 ORF01099 58 ORF01338 49 ORF00503 59 ORF01339 50 ORF...

Page 25: ...tem must not be interchanged with other vent systems or unlisted pipe or fittings Plastic components specified primers and glues must be from a single system manufacturer and not intermixed with other...

Page 26: ...t may occur will now drain outside of the home The combustion air outlet piping must remain sloped back to the furnace Option 1 Slope equals 1 4 per foot To an approved vented drain Combustion air int...

Page 27: ...Tee Combustion air intake Combustion air exhaust Primary drain vent stack must terminate below the bottom of the condensate trap Option 3 Side combustion air intake If sloping the combustion air inta...

Page 28: ...te If only the flue gas pipe is to the outside of the structure a straight section of pipe long enough to exit the Furnace cabinet must be attached to the inlet air side with an elbow which is 5 to 10...

Page 29: ...le en ne e v ve en nt ti in ng g s sy ys st te em ms s F Fo ol ll lo ow w t th he e m ma an nu uf fa ac ct tu ur re er r s s i in ns st ta al ll la at ti io on n i in ns st tr ru uc ct ti io on ns s...

Page 30: ...M D2241 CPVC ASTM STANDARD PIPE TYPE ALLOWABLE TEMPERATURE F MARKING D2846 CPVC 41 212 ASTM D2846 F441 SCH 40 80 212 ASTM F441 F442 SDR SERIES 212 ASTM F442 ABS ASTM STANDARD PIPE TYPE ALLOWABLE TEMPE...

Page 31: ...le fitting equivalent vent lengths may be different from what is shown in Note 6 Refer to the venting system manufacturer s installation instruction for appropriate venting diameters and equivalent le...

Page 32: ...cing coupling it is used for 3 vent pipe installation Make sure the marking TOP is located on the top side of the pipe in horizontal venting applications The straight side of the coupling must be on b...

Page 33: ...THROUGH COMBUSTIBLE WALLS Pitch 1 4 Inch Per Foot CLEARANCE 0 ACCEPTABLE FOR PVC VENT PIPE 1 ACCEPTABLE FOR TYPE 29 4C STAINLESS STEEL VENT PIPE 12 MINIMUM ABOVE NORMALLY EXPECTED SNOW ACCUMULATION LE...

Page 34: ...d in the same pressure zone Important Maintain 12 minimum clearance above highest anticipated snow level or grade whichever is greater Note All distances are centerline to centerline 6 Min 24 Max 12 M...

Page 35: ...hin 3 feet of the vent terminal The vent for this appliance shall not terminate 1 Over public walkways or 2 Near soffit vents or crawl space vents or other areas where condensate or vapor could create...

Page 36: ...e met at the time of completion of installation the owner shall have a period of thirty 30 days to comply with the above requirements provided however that during said thirty 30 day period a battery o...

Page 37: ...ilding or the combustion air inlet to any other appliance 6 inches 15 cm for appliances 10 000 BTUH 3 kw 12 inches 30 cm for appliances 10 000 BTUH 3 kw and 100 000 BTUH 30 kw 36 inches 91 cm for appl...

Page 38: ...building or the combustion air inlet to any other appliance 6 inches 15 cm for appliances 10 000 Btuh 3 kw 12 inches 30 cm for appliances 10 000 Btuh 3 kw and 100 000 Btuh 30 kw 36 inches 91 cm for a...

Page 39: ...ABOVE ROOF VENT COMBUSTION AIR BAYAIR30AVENTA BAYAIR30CNVENT REMOVE RIBS FROM CAP COMBUSTION AIR ROOF FLASHING BOOT FIELD SUPPLIED COMBUSTION AIR VENT ELBOW FIELD SUPPLIED MAINTAIN 12 IN 18 IN FOR CA...

Page 40: ...ITABLE SUPPORT METHOD Venting Through an UNUSED Chimney Important Refer to Section 12 6 8 of NFPA 54 ANSI 223 1 2012 when routing vent piping through a chimney Important The single wall flue pipe join...

Page 41: ...choose to remodel or change the area which contains your Furnace Furnaces must have a free flow of air for proper performance Provisions for combustion and ventilation air shall be made in accordance...

Page 42: ...arranties are not available in some instances Extended warranty does not cover repairs to equipment installed in establishments with corrosive atmospheres including but not limited to dry cleaners bea...

Page 43: ...te with the outdoors Refer to the Minimum Free Area in square inches for confined spaces table for minimum open areas required CONFINED SPACE AIR FROM OUTDOORS CONFINED SPACE OUTLET OUTDOOR AIR DUCTS...

Page 44: ...talled so that the supply ducts carry air circulated by the furnace to areas outside the space containing the furnace the return air shall also be handled by a duct s sealed to the furnace and termina...

Page 45: ...u us st t h ha av ve e d dr ra ai in n p pa an ns s t th ha at t a ar re e s su ui it ta ab bl le e f fo or r 4 40 00 0 F F 2 20 05 5 C C o or r h ha av ve e a a m me et ta al l d dr ra ai in n p pa a...

Page 46: ...A k ki it t C Co oi il ls s i in ns st ta al ll le ed d o on n u up pf fl lo ow w f fu ur rn na ac ce es s m mu us st t h ha av ve e d dr ra ai in n p pa an ns s t th ha at t a ar re e s su ui it ta a...

Page 47: ...fu ur rn na ac ce es s m mu us st t h ha av ve e d dr ra ai in n p pa an ns s t th ha at t a ar re e s su ui it ta ab bl le e f fo or r 4 40 00 0 F F 2 20 05 5 C C o or r h ha av ve e a a m me et ta...

Page 48: ...ing at the back of the furnace cut the side flanges along perforations until past the end of the heat shield to avoid interference when bending 3 Bend furnace side flanges down 4 Support the furnace a...

Page 49: ...e no Coil Important A BAYBASE is required when installing the furnace on a combustible floor 1 Bend furnace flanges up 2 Attach ducting 3 Seal per local codes and requirements F Fu ur rn na ac ce e G...

Page 50: ...ly An external overflow drain pan must be installed in all applications over a finished ceiling to prevent property damage Upflow Furnace with Bottom Return in Closet with Remote Filter 1 Remove the b...

Page 51: ...air from a remote location 3 Install filter at a remote location 4 Seal per local codes and requirements Upflow Furnace with Bottom Return Mounted on a Ducted Pedestal with Filter Box 1 Remove the bot...

Page 52: ...t furnace Follow kit instructions Note The furnace bottom pedestal must be a minimum of 6 in height 3 Match the filter cabinet flush to the back and bottom sides of the furnace cabinet and secure in p...

Page 53: ...flow Furnace with Two Side Returns Important One of the sides must have a transition to allow the condensate and thermostat wiring to exit the cabinet Important If a transition is not a viable option...

Page 54: ...op of the furnace 3 Install remote filter 4 Seal per local codes and requirements Downflow Furnace with Top Return and Plenum 1 Remove the top plate 2 Attach the plenum ducting to the top of the furna...

Page 55: ...flow Furnace with Top Return and Plenum with Filter Box 1 Remove the top plate 2 Attach the filter box to the top of the furnace 3 Attach ducting 4 Seal per local codes and requirements F Fu ur rn na...

Page 56: ...lter Installations All return air duct systems should provide for installation of return air filters 1 Determine the appropriate position to set the furnace in order to connect to existing supply and...

Page 57: ...out Thin cloths should be placed over the registers and the furnace fan should be run for 10 minutes Don t forget to remove the cloths before you start the furnace 4 The horizontal installation of th...

Page 58: ...IFC and connect wiring 2 The factory Y1 O jumper must remain in place for proper LED read out in cooling mode 3 Y1 and Y2 wiring from the thermostat must connect to the IFC for proper airflow and LED...

Page 59: ...G 24 V FIELD WIRING 24 V FACTORY WIRING Furnace IFC BK JUMPER SEE NOTE 1 O BK BK Y2 Y1 Y1 B C B C W2 W1 W1 G G R R O Y1 B C Single Stage Thermostat Furnace Outdoor Unit No Transformer SEE NOTE 2 SEE N...

Page 60: ...n resistant condensate pump must be used if a pump is required for a specific drain system C CA AU UT TI IO ON N W Wa at te er r D Da am ma ag ge e P Pr ro op pe er rt ty y D Da am ma ag ge e I It t i...

Page 61: ...PRIMARY DRAIN VENT STACK MUST TERMINATE BELOW THE BOTTOM OF THE CONDENSATE TRAP IF THE FURNACE IS INSTALLED OVER A FINISHED CEILING OVERFLOW FROM THE PRIMARY DRAIN VENT STACK MUST FLOW INTO AN AUXILI...

Page 62: ...the condensate tubing off and connect the tubing to the condensate trap Install the condensate grommet into the bottom panel Cut to length as needed DOWNFLOW FURNACES WITH BOTTOM DRAIN CONDENSATE PIPE...

Page 63: ...f the excess tube and reinstall the end fitting to the drain hose 1 5 8 DIAMETER HOLE MUST BE CUT IN LEFT SIDE OF CASE BOTTOM HOLE MUST BE PLUGGED DOWNFLOW FURNACES LEFT SIDE DRAIN IF THE FURNACE IS I...

Page 64: ...11 16 hole drilled through the cabinet and insert into drain line hose Secure with the spring clip Note Seal around the condensate drain tubing where it exits the cabinet Cut hose Approx 4 11 16 DIAME...

Page 65: ...ensate will block drains resulting in furnace shutdown If the drain line cannot be installed in a conditioned space then UL listed heat tape should be applied as required to prevent freezing per manuf...

Page 66: ...he e f fu ur rn na ac ce e To shut off For complete shutdown Turn the toggle or control switch located on the main gas valve inside the unit to the OFF position and the external main gas shutoff valve...

Page 67: ...ns and the options for venting the inlet and exhaust combustion air I Im mp po or rt ta an nt t When looking at the different orientations the direction of the combustion air exhaust in the illustrati...

Page 68: ...tion air exhaust vented through left side Note Requires a hole to be drilled in the case Refer to the illustrations below to find the approved venting options for downflow furnace models Important The...

Page 69: ...through vent outlet adaptor and insert into inducer outlet 2 Twist to insure PVC is fully inserted 3 Tighten the clamp on the end of the 45 degree elbow 4 Tighten the clamp on the outlet vent adapter...

Page 70: ...ht side vent outlet is not allowed because condensate will not drain Before proceeding lay unit on its back to make conversion easier 1 Disconnect all drain tubes from condensate trap Note When removi...

Page 71: ...cabinet 1 Loosen the clamp holding the 45 elbow Remove the elbow and discard 1 Remove the three inducer mounting screws 2 Rotate inducer counter clockwise so that the inducer outlet aligns with the e...

Page 72: ...l rotated position 1 Attach the vent outlet gasket to the vent outlet 2 Install vent outlet to top of cabinet using 2 screws supplied in the dock pack 3 Install vent inlet gasket and vent inlet using...

Page 73: ...tion Important Trim the condensate pressure switch tubing to length to ensure there is no sag or trap created 2 Remove port cap at bottom of inducer and connect inducer condensate tubing Connect other...

Page 74: ...d the trap with your hand to prevent the trap from breaking Removing the trap before the hoses is also an option 2 Remove tubing from PS2 to cold header 3 Remove drain tubing from bottom of inducer ho...

Page 75: ...the inducer so that the outlet is pointing vertically 3 Use the three screws to reattach the inducer to the cold header to 30 in lbs Do not overtighten F Fu ur rn na ac ce e C Co om mb bu us st ti io...

Page 76: ...nlet 4 Reuse the two 3 plugs to seal the two 3 default openings on the top of the furnace 1 Attach the vent outlet gasket to the vent outlet 2 Install vent outlet to top of cabinet using 2 screws supp...

Page 77: ...uirements Condensate Trap Installation 1 Reinstall the condensate adapter if it was earlier removed or ensure adapter is still in place Important The condensate adapter must be present for proper cond...

Page 78: ...e trap orientation and inducer port caps The figure to the right shows the furnace as it is sent from the factory Use the following steps to modify the furnace for horizontal left with top venting of...

Page 79: ...et 1 Remove the pressure switch bracket assembly 2 Remove the screw that holds PS2 rotate 90 degrees clockwise and reattach 3 Reattach the pressure switch bracket assembly F Fu ur rn na ac ce e C Co o...

Page 80: ...let PVC pipe Note The vent outlet adapter is used for strain relief against the weight of the venting The clamp should be tightened after the internal connection is made Note If required transition to...

Page 81: ...insure there is a rise in the tubing to avoid condensed flue gases from entering pressure switch 2 Remove port cap on left side of inducer and connect inducer condensate tubing Connect other end of in...

Page 82: ...e tubing from PS2 to cold header 3 Remove drain tubing from bottom of inducer housing 4 Remove rain gutter tubing from inducer outlet 5 Remove tubing from condensate pressure switch 6 Remove the screw...

Page 83: ...asket and vent inlet using 4 screws supplied in the doc pack 1 Remove three inducer screws 2 Rotate the inducer so that the outlet is pointing vertically 3 Use the three inducer screws to reattach the...

Page 84: ...Install the combustion air inlet PVC pipe Note The vent outlet adapter is used for strain relief against the weight of the venting The clamp should be tightened after the internal connection is made N...

Page 85: ...ondensate port trap 3 Hand tighten screw 1 Connect PS2 tubing to switch and new sensing location Important Trim the condensate pressure switch tubing to length to ensure there is no sag or trap create...

Page 86: ...Remove drain tubing from bottom of inducer housing 4 Remove rain gutter tubing from inducer outlet 5 Remove tubing from condensate pressure switch 6 Remove the screws that hold the condensate trap bra...

Page 87: ...onto the cold header outlet located on the bottom left of the cold header 4 Rotate the inducer 180 degrees so that the elbow is pointing towards the left 5 Use the three inducer screws to reattach the...

Page 88: ...l vent inlet gasket and vent inlet using 4 screws supplied in the doc pack Note The vent outlet adapter is used for strain relief against the weight of the venting The clamp should be tightened after...

Page 89: ...r condensate drain operation 2 Install condensate trap into new location by fitting into grommet and aligning the hole on the condensate trap with the hole labeled HR Important When installing a 21 0...

Page 90: ...sary 3 Install previously removed port cap onto bottom port of the inducer As viewed in upflow 4 Connect condensate pressure switch tubing to pressure port on the condensate trap Important Cut to leng...

Page 91: ...n the doc pack 1 Slide PVC pipe through vent outlet adaptor and insert into inducer outlet 2 Twist to insure PVC is fully inserted 3 Tighten the two clamps 4 Install the combustion air inlet PVC pipe...

Page 92: ...on air Important Right side vent outlet is not allowed because condensate will not drain Before proceeding lay unit on its back to make conversion easier 1 Disconnect all drain tubes from condensate t...

Page 93: ...tion air exhaust and inlet 2 Reuse the two 3 plugs to seal the two 3 default openings on the top of the cabinet 1 Loosen the clamp holding the 45 elbow Remove the elbow and discard F Fu ur rn na ac ce...

Page 94: ...to 30 in lbs Do not overtighten 1 Remove the pressure switch bracket assembly 2 Remove the screw that holds PS2 rotate 90 degrees counterclockwise and reattach 3 Reattach the pressure switch bracket...

Page 95: ...n applications may use BAYREDUCE to meet ULC S636 requirements See Horizontal Venting section for proper orientation of 2 x 3 offset coupling 1 Connect PS2 tubing to switch and sensing location Import...

Page 96: ...95 125 065 A952V060BD3SAA 103 103 113 080 090 A952V080BD4SAA 126 126 133 148 120 A952V100CD4SAA 183 183 189 150 162 A952V100CD5SAA 210 210 152 180 187 A952V120DD5SAA 225 225 175 185 195 Model ODT Op o...

Page 97: ...Airflow display is rounded down to the nearest 10 cfm NOTES 1 The menu status displayed is solely dependent on the input of 24VAC that is applied to the low voltage terminal strip 2 The status will al...

Page 98: ...lower on 2nd stage compressor speed for 10 seconds Turns the circula ng blower on 1st stage gas heat speed for 10 seconds Turns on the circula ng blower on 2nd stage gas heat speed for 10 seconds The...

Page 99: ...ge CpC Cooling CFM Ton CpH Heat Pump Heating CFM Ton Xod Heat Off Delay Seconds sd Inter Stage Delay Seconds gXC Gas Heating CFM 2nd Stage 1st Stage is not adjustable run Run Test Mode Error Codes Ala...

Page 100: ...nu appears 2 Enter the menu by pressing the Option key 3 The last 6 faults can be viewed Clearing the Last 6 Faults 1 To clear the last 6 faults press the Menu key until the Last 6 Faults L6F menu app...

Page 101: ...e flame sensor Flame sensing must take place within 4 seconds N No ot te e There are two flame sense pads located on the IFC marked FP To measure the flame current use a VOM set to DC volts 1VDC 1 mic...

Page 102: ...wer motor will ramp down to 1st stage and the unit will continue to run until R W1 contacts open 12 When the temperature raises enough to satisfy the thermostat setting contacts R W1 will open 13 The...

Page 103: ...to satisfy the thermostat setting contacts R Y1 Y2 G will open 8 The OD unit shuts off and the indoor blower shuts off unless a blower off delay has been enabled in the IFC setup menu options The sev...

Page 104: ...rotect food and perishables and increase industrial productivity and efficiency We are a global business committed to a world of sustainable progress and enduring results ingersollrand com Ingersoll R...

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