Amana GCCA115AX50 Service Manual

ServiceInstructionsThis manual is to be used by qualified HVAC technicians only. Amanadoes not assume any responsibility for property damage or person

PRODUCT IDENTIFICATION10 Rev. 1This section will identify the models covered and the changes per each model group from one release to the next.Model #

SYSTEM OPERATION100 Rev. 1Abnormal Operation(80% Two-Stage Variable Speed Models with White-Rodgers 50A51-225 Ignition Control)(90% Two-Stage Variable

SYSTEM OPERATION101 Rev. 1Symptoms ofAbnormalOperationAssociatedRed LED Code(See Note 2)Fault Description(s) Possible Causes Corrective ActionCautions

SYSTEM OPERATION102 Rev. 1NORMAL SEQUENCE OF OPERATION(90% Two-Stage Models with White- Rodgers 50M61-288 Integrated Ignition Control)Power UpThe norm

SYSTEM OPERATION103 Rev. 1Cooling ModeThe normal operational sequence in cooling mode is asfollows:1. R and Y thermostat contacts close, initiating a

SYSTEM OPERATION104 Rev. 10 10 30 33 34 64 0 15 30 60, 90120, or180AirCirculatorBlowerGas ValveIgniterPressureSwitchesInduced DraftBlowerThermostat(Ca

SYSTEM OPERATION105 Rev. 1Example 4: Initial Call For High Heat, Subsequent Call To Low Heat010 30333464 0 15 30 60,90120, or180AirCirculatorBlowerGas

SYSTEM OPERATION106 Rev. 105 0 45OnOffOnOffOnOffCirculatorBlowerOutdoor FanAndCompressorThermostat(Call For Cool)Time (sec)00OnOffOnOffCirculatorBlowe

SYSTEM OPERATION107 Rev. 1Abnormal Operation(90% Two-Stage Models with White- Rodgers 50M61-288 Ignition Control)The following presents the probable c

SYSTEM OPERATION108 Rev. 1NORMAL SEQUENCE OF OPERATION(90% Two-Stage Variable Speed Models with White-Rodgers 50V61-288 Integrated Ignition Control)Po

SYSTEM OPERATION109 Rev. 1Cooling ModeThe normal operational sequence in cooling mode is asfollows:1. R and YLO or Y thermostat contacts close, initi

PRODUCT IDENTIFICATION11 Rev. 1This section will identify the models covered and the changes per each model group from one release to the next.Model #

SYSTEM OPERATION110 Rev. 10 10 30 33 34 64 94 0 15 30 60, 90 90, 120,120, or 150, or180 210AirCirculatorBlowerGas ValveIgniterPressureSwitchesInduced

SYSTEM OPERATION111 Rev. 1Example 4: Initial Call For High Heat, Subsequent Call To Low Heat010 30333464 0 15 30 60,90120, or180AirCirculatorBlowerGas

SYSTEM OPERATION112 Rev. 10535 0 45HighLowOffAirCirculatorBlowerOutdoor FanAndCompressorThermostat(Call for Cool)Time (sec)HighLowOffHighLowOff(88% of

SYSTEM OPERATION113 Rev. 1Abnormal Operation(90% Two-Stage Variable Speed Models with White-Rodgers 50V61-228 Ignition Control)The following presents

SYSTEM OPERATION114 Rev. 1Symptoms of AbnormalOperationAssociatedRED LED Code(See Note 2)Fault Descriptions Possible Causes Corrective ActionCautions

SYSTEM OPERATION115 Rev. 1Symptoms of AbnormalOperationAssociatedRED LED Code(See Note 2)Fault Descriptions Possible Causes Corrective ActionCautions

SYSTEM OPERATION116 Rev. 1OPERATING INSTRUCTIONS1. Close the manual gas valve external to the furnace.2. Turn off the electrical power supply to the f

SYSTEM OPERATION117 Rev. 1OUTLET (MANIFOLD)PRESSURE TAP(SIDE OF VALVE)PRESSURE REGULATORADJUSTMENT(UNDER CAP SCREW)GAS VALVEON/OFFCONTROL LEVERINON PO

POLARIZATION AND PHASING118 Rev. 1As more and more electronic's are introduced to the Heat-ing Trade, Polarization of incoming power and phasingo

119 Rev. 1MAINTENANCEWARNINGTO AVOID ELECTRICAL SHOCK, INJURY OR DEATH,DISCONNECT ELECTRICAL POWER BEFORE PER-FORMING ANY MAINTENANCE.CAUTIONIF YOU MU

PRODUCT IDENTIFICATION12 Rev. 1This section will identify the models covered and the changes per each model group from one release to the next.Model #

MAINTENANCE120 Rev. 14. Replace filter and blower compartment door opposite ofremoval and turn ON thermostat or electrical power.FRONT OF FURNACEBLOWE

121 Rev. 1MAINTENANCEFLAME SENSOR (QUALIFIED SERVICER ONLY)Under some conditions, the fuel or air supply can create anearly invisible coating on the f

122 Rev. 1SERVICINGTEST EQUIPMENTProper test equipment for accurate diagnosis is as essen-tial as regulator hand tools.The following is a must for eve

SERVICING123 Rev. 1CUBICFEET102345687910234568791234568791234568791 Million100 Thousand10 Thousand1 ThousandOneFootQuarterFoot1/4cu/ft1/2cu/ft1cu/ft2c

124 Rev. 1SERVICINGComplaint No Heat Unsatisfactory HeatPOSSIBLE CAUSEDOTS IN ANALYSISGUIDE INDICATE"POSSIBLE CAUSE"SYMPTOMSystem Will Not S

SERVICING125 Rev. 1SERVICING SECTION INDEXS-1 Checking Voltage 126S-2 Checking Wiring 126S-3 Checking Thermostat, Wiring, and Anticipator 126-127S-4 C

126 Rev. 1SERVICINGS-1 CHECKING VOLTAGEWARNINGDisconnect Electrical Power Supply:1. Remove the burner door on 80% furnace or blower com-partment door

SERVICING127 Rev. 1If the anticipator current draw is unknown, then an ampdraw should be taken to determine the anticipator setting.Use an amprobe as

128 Rev. 1SERVICINGSTYLE 1 & 3STYLE 2Primary Limit Control Styles(80% Furnaces)All 90% furnaces use a nonadjustable, automatic reset,Klixon type l

SERVICING129 Rev. 1S-6 CHECKING AUXILIARY LIMIT CONTROLAll the 80% and 90% furnaces use an additional limit switchrequired for safety control of high

PRODUCT IDENTIFICATION13 Rev. 1This section will identify the models covered and the changes per each model group from one release to the next.Model #

130 Rev. 1SERVICINGWARNINGTo avoid possible fire, only reset the auxiliary limitcontrol once. If it should open a second time, a quali-fied servicer m

SERVICING131 Rev. 1c. If voltage is measured on both sides of the controlthe wiring to gas valve or valve is a fault.3. After check and/or replacement

132 Rev. 1SERVICING7. Begin to restrict the flue outlet until the pressure controltrips - cycling OFF the burner. Also a blocked drain testwill need t

SERVICING133 Rev. 1PowerConditioningAC to DCConversionInverterMotorControlECMBlowerMotorHVAC System ControlINPUTS24 Volts A/CCompressorOn/Hi/LowFan On

134 Rev. 1SERVICINGSymptoms ofAbnormalOperationFault Description(s) Possible Causes Corrective ActionCautions andNotes- Motor rocks slightlywhen start

SERVICING135 Rev. 187654321161514131211109OUT -ADJUST +/-Y1COOLDELAYCOMMON 2W/W1COMMON 1OUT +G(fan)Y/Y2EM HT/W224VAC (R)HEATBK/Pwm (Speed)O(RevValve)C

136 Rev. 1SERVICING13. The installation is now complete. Reapply power to thefurnace and verify that the new motor control module isworking properly.F

SERVICING137 Rev. 1WARNINGDisconnect Electrical Power Supply:1. Remove wire connections from gas valve terminals.2. Using an ohmmeter, test across the

138 Rev. 1SERVICINGThe ignition control is a combination electronic and electro-mechanical device and is not field repairable. Complete unitmust be re

SERVICING139 Rev. 1ally reduces the "ON" time of the ignitor. The effect is thatthe ignitor operates at a cooler temperature. The learningro

PRODUCT IDENTIFICATION14 Rev. 1This section will identify the models covered and the changes per each model group from one release to the next.Model #

140 Rev. 1SERVICINGS-14 CHECKING FLAME RECTIFICATIONFLAME SENSORA flame sensing device is used in conjunction with the igni-tion control module to pro

SERVICING141 Rev. 1NOTE: Any bending, twisting, or distortion of the electricaltabs on the sensor will adversely affect the calibration ofthe switch a

142 Rev. 1SERVICINGS-17 HIGH ALTITUDE APPLICATION (USA)When these furnaces are installed at high altitude, the ap-propriate High Altitude Orifice or P

SERVICING143 Rev. 1WARNINGDisconnect Electrical Power and Shut Off Gas Supply:6. Disconnect manometer after turning off gas at manualshutoff valve. Re

144 Rev. 1SERVICING4. Remove the cap screw from the high stage manifoldpressure regulator.5. Using a 3/32" Allen wrench, adjust the high stage ma

SERVICING145 Rev. 1S-20 CHECKING FOR FLASHBACKFlashback will also cause burning in the burner venturi, butis caused by the burning speed being greater

146 Rev. 1SERVICINGS-22 CHECKING TEMPERATURE RISEThe more air (CFM) being delivered through a given furnace,the less the rise will be; so the less air

TO AVOID POSSIBLE ELECTRICAL SHOCK, PERSONAL INJURY,OR DEATH, DISCONNECT THE POWER BEFORE SERVICING.WARNING!ACCESSORY WIRING DIAGRAMS147 Rev. 1FURNACE

TO AVOID POSSIBLE ELECTRICAL SHOCK, PERSONAL INJURY,OR DEATH, DISCONNECT THE POWER BEFORE SERVICING.WARNING!ACCESSORY WIRING DIAGRAMS148 Rev. 1Point t

TO AVOID POSSIBLE ELECTRICAL SHOCK, PERSONAL INJURY,OR DEATH, DISCONNECT THE POWER BEFORE SERVICING.WARNING!ACCESSORY WIRING DIAGRAMS149 Rev. 1FURNACE

PRODUCT IDENTIFICATION15 Rev. 1AVERTISSEMENT:Quiconquenerespectepasálalettrelesinstructionsdansleprésentmanuelrisquededéclecherunincendieouuneexplosio

TO AVOID POSSIBLE ELECTRICAL SHOCK, PERSONAL INJURY,OR DEATH, DISCONNECT THE POWER BEFORE SERVICING.WARNING!ACCESSORY WIRING DIAGRAMS150 Rev. 1FOSSIL

TO AVOID POSSIBLE ELECTRICAL SHOCK, PERSONAL INJURY,OR DEATH, DISCONNECT THE POWER BEFORE SERVICING.WARNING!ACCESSORY WIRING DIAGRAMS151 Rev. 1TWO-STA

TO AVOID POSSIBLE ELECTRICAL SHOCK, PERSONAL INJURY,OR DEATH, DISCONNECT THE POWER BEFORE SERVICING.WARNING!ACCESSORY WIRING DIAGRAMS152 Rev. 1DE-HUMI

TO AVOID POSSIBLE ELECTRICAL SHOCK, PERSONAL INJURY,OR DEATH, DISCONNECT THE POWER BEFORE SERVICING.WARNING!ACCESSORY WIRING DIAGRAMS153 Rev. 13OFFONT

PRODUCT IDENTIFICATION16 Rev. 1AVERTISSEMENT:Quiconquenerespectepasálalettrelesinstructionsdansleprésentmanuelrisquededéclecherunincendieouuneexplosio

PRODUCT IDENTIFICATION17 Rev. 1AVERTISSEMENT:Quiconquenerespectepasálalettrelesinstructionsdansleprésentmanuelrisquededéclecherunincendieouuneexplosio

PRODUCT IDENTIFICATION18 Rev. 1AVERTISSEMENT:Quiconquenerespectepasálalettrelesinstructionsdansleprésentmanuelrisquededéclecherunincendieouuneexplosio

PRODUCT IDENTIFICATION19 Rev. 1AVERTISSEMENT:Quiconquenerespectepasálalettrelesinstructionsdansleprésentmanuelrisquededéclecherunincendieouuneexplosio

2 Rev. 1INDEXIMPORTANT INFORMATIONPride and workmanship go into every product to provide our customers with quality products. It is possible, howev

PRODUCT IDENTIFICATION20 Rev. 1AVERTISSEMENT:Quiconquenerespectepasálalettrelesinstructionsdansleprésentmanuelrisquededéclecherunincendieouuneexplosio

ACCESSORIES21 Rev. 1Model NumberASB01ACVK4CVK5CVK6CVK7EAC5EFR01FFK03AFTK03AHAC1PS01HAC1PS02HAC1PS03HAC1PS04HAC1PS05HAC1PS06HAC1PS07HAC1PS08HAC1PS09HAC

ACCESSORIES22 Rev. 1Model NumberASB01ACVK4CVK5CVK6CVK7EAC5EFR01FFK03AFTK03AHAC1PS01HAC1PS02HAC1PS03HAC1PS04HAC1PS05HAC1PS06HAC1PS07HAC1PS08HAC1PS09HAC

ACCESSORIES23 Rev. 1Model NumberASB01ACVK4CVK5CVK6CVK7EAC5EFR01FFK03AFTK03AHAC1PS11HAC1PS12HALP09HANG07LPTK09MAC1DescriptionAdjustable SubbaseCommon V

ACCESSORIES24 Rev. 1Model NumberCVK4CVK5CVK6CVK7EAC5EFR01FFK03AFTK03AHAC1PS11HAC1PS12HALP07HANG07LPTK09MAC1DescriptionCommon Vent KitCommon Vent KitCo

ACCESSORIES25 Rev. 1Model NumberASB01AEAC5EFR01FFK03AFTK03AHALP09HATS01HATS02HATS03HATS04HATS05HATS06HATS07HATS08HATS09LPTK09MAC1DescriptionAdjustable

ACCESSORIES26 Rev. 1Model NumberCFB16CFB20CFB24DEHUM1EAC5EFR01FFK03AHCVKLPTK09MAC1HALP10HALP11HANG11HANG12HANG13HANG14HAPS27HAPS28HAPS29TSRK01VCVKDesc

ACCESSORIES27 Rev. 1 COUNTERFLOW FLOOR BASEDCBAGFEPlenumGasket1" Min.3/4"FEFront View3/4"FloorFloor BaseFurnaceDuctAB4-7/16"Sid

ACCESSORIES28 Rev. 1 EXTERNAL FILTER RACK KITEFR01 EXTERNAL FILTER RACK KITUsed on Models80% Upflow Model Furnaces90% Upflow Model Furnaces23.5671

ACCESSORIES29 Rev. 1HORIZONTAL FILTER HOUSINGBCCBDEAAMODEL HRMODEL HRBABCDEHR20 6-5/8 25-1/2 22 19-3/4 19 20x25HR25 6-5/8 20-1/2 27 19-3/4 19 20x25HOR

3 Rev. 1IMPORTANT INFORMATIONIF REPAIRS ARE ATTEMPTED BY UNQUALIFIED PERSONS, DANGER-OUS CONDITIONS (SUCH AS EXPOSURE TO ELECTRICAL SHOCK)MAY RESULT

ACCESSORIES30 Rev. 1DEHUMIDISTATModel Number2274W-21Setpoint - Humidity Range30% to 80% RHOperatingAmbient10° to 40° C (50° to 104° F)Differential5%Vo

ACCESSORIES31 Rev. 1 CONCENTRIC VENT CONVERSION KITHorizontal(HCVK)Vertical(VCVK)Concentric Vents Kits HVCK and VCVK are suitable for usewith the fo

ACCESSORIES32 Rev. 1Vertical Vent InstallationHorizontal Vent InstallationCOMMMON VENT KITFrom furnace Flow To ChimneyYES YESNONOVent DamperInstall ve

PRODUCT DESIGN33 Rev. 1SafetyPlease adhere to the following warnings and cautions wheninstalling, adjusting, altering, servicing, or operating the fur

PRODUCT DESIGN34 Rev. 1WARNINGTo prevent death, personal injury or property damagedue to fire, do not install this furnace in a mobile home,trailer, o

PRODUCT DESIGN35 Rev. 1• Exposure to contaminated combustion air will resultin safety and performance-related problems. Do notinstall the furnace wher

PRODUCT DESIGN36 Rev. 1The following steps shall be followed with each appliance connected tothe venting system placed in operation, while any other a

PRODUCT DESIGN37 Rev. 1Combustion and Ventilation Air RequirementsWARNINGPossible death, personal injury or property damage mayoccur if the furnace is

PRODUCT DESIGN38 Rev. 1(b) All Air from Outdoors: The confined space shall communicatewith the outdoors in accordance with one of the following twomet

PRODUCT DESIGN39 Rev. 15.3.5 Louvers and Grilles:In calculating free area in 5.3.3, consideration shall be given tothe blocking effect of louvers, gri

PRODUCT IDENTIFICATION4 Rev. 1This section will identify the models covered and the changes per each model group from one release to the next.Model #

PRODUCT DESIGN40 Rev. 1SupplyAir80% Upflow Rotated Induced Draft BlowerCounterflow units are shipped with the induced draftblower discharging from the

PRODUCT DESIGN41 Rev. 1This inspection is based upon a draft topical report, "Ma-sonry Chimney Inspection and Relining", issued by the GasRe

PRODUCT DESIGN42 Rev. 1Appliances which burn propane (sometimes referred to asLP (liquefied petroleum)) gas are considered gas-fired ap-pliances.Check

PRODUCT DESIGN43 Rev. 1If dilution air will not be available, the chimney must be re-lined (Fix 4).Check 7 - Complete the Installation.If Checks 1 thr

PRODUCT DESIGN44 Rev. 1• Heavier gauge 300 and 400 series stainless steelliners were developed for use with oil or solid fuelappliances. They are not

PRODUCT DESIGN45 Rev. 1AIRDISCHARGEAIRDISCHARGEAIRDISCHARGEBottomReturnDuctConnectionBottomReturnDuctConnectionBottomReturnDuctConnectionSideReturnDuc

PRODUCT DESIGN46 Rev. 1It is the responsibility of the installer to follow the manufac-turers’ recommendations and to verify that all vent/flue pip-in

PRODUCT DESIGN47 Rev. 1• The vent termination of vent pipe run vertically througha roof must terminate at least 12 inches above theroof line (or the a

PRODUCT DESIGN48 Rev. 1Non-Direct Vent InstallationsA minimum of one 90° elbow must be installed on the com-bustion air intake “coupling” to guard aga

PRODUCT DESIGN49 Rev. 1CAUTIONBe sure not to damage internal wiring or other compo-nents, when reinstalling coupling and screws.For non-direct vent in

PRODUCT IDENTIFICATION5 Rev. 1This section will identify the models covered and the changes per each model group from one release to the next.Model #

PRODUCT DESIGN50 Rev. 1Vent/Flue Pipe Terminations (90% Furnaces Only)The vent/flue pipe may terminate vertically, as through aroof, or horizontally,

PRODUCT DESIGN51 Rev. 1DIRECT VENT (DUAL PIPE) PIPING (90% FURNACESONLY)Direct vent installations require both a combustion air in-take and a vent/flu

PRODUCT DESIGN52 Rev. 1Horizontal terminations should be as shown in the follow-ing figure. Refer to Vent/Flue Pipe and Combustion Pipe -Termination

PRODUCT DESIGN53 Rev. 1If more than one direct vent furnace is to be installed hori-zontally through a common side wall, use the alternate ter-minatio

PRODUCT DESIGN54 Rev. 1UPRIGHT INSTALLATIONSIn an upright installation drain hoses are connected to drainports on the rubber elbow and the recouperato

PRODUCT DESIGN55 Rev. 1HORIZONTAL INSTALLATIONSRight Side DownHorizontal installations with the right side down require thatthe drain hoses be connect

PRODUCT DESIGN56 Rev. 1Gas Supply and PipingThe furnace rating plate includes the approved furnace gasinput rating and gas types. The furnace must be

PRODUCT DESIGN57 Rev. 1Length of Nominal Black Pipe SizePipe in Feet 1/2" 3/4" 1" 1 1/4" 1 1/2"10 132 278 520 1050 160020 92

PRODUCT DESIGN58 Rev. 1NOTES:1.WHENGASLINEISINTHEALTERNATELOCATION,SWAP THE POSITION OFTHE PLUG AND GROMMET.2. DRIP LEG MAY TERMINATE WITHA 1/2"

PRODUCT DESIGN59 Rev. 1Gas Piping ChecksBefore placing unit in operation, leak test the unit and gasconnections.WARNINGTo avoid the possibility of exp

PRODUCT IDENTIFICATION6 Rev. 1This section will identify the models covered and the changes per each model group from one release to the next.Model #

PRODUCT DESIGN60 Rev. 1WARNINGIf the information in these instructions is not followedexactly, a fire or explosion may result causing prop-erty damage

PRODUCT DESIGN61 Rev. 1WARNINGIn 90% furnace upright upflow installations, the draintrap must be mounted on the opposite side of the unitfrom the junc

PRODUCT DESIGN62 Rev. 1If it is necessary for the installer to supply additional linevoltage wiring to the inside of the furnace, the wiring mustconfo

PRODUCT DESIGN63 Rev. 1WGYSingle-Stage Heating with Single-Stage CoolingRB/C G R W1 W2YDEHUMTWINY CFurnace IntegratedControl ModuleThermostatSingle-St

PRODUCT DESIGN64 Rev. 1Thermostat Wiring - 80% GUIV-CA/DX & 90% GUVA-AX Two-Stage Variable Speed FurnacesAs a two-stage furnace, the furnace’s int

PRODUCT DESIGN65 Rev. 1W1GYTwo-Stage Heating with Single-Stage CoolingRW2B/C G R W1 W2OYLOYDEHUMTWINY CNEUHOTFurnace IntegratedControl ModuleThermosta

PRODUCT DESIGN66 Rev. 1ModeFurnace Circulator Blower OperationDuring Call From ThermostatOptionRef.24 Volts HOT RFrom RoomThermostatROn Two-StageInteg

PRODUCT DESIGN67 Rev. 1ADJUSTNORM(+)(-)TESTHEATABCDCOOLABCDCUT TOENABLEDEHUMIDIFYDEHUMIDIFICATIONLED (GREEN)DEHUMIDIFICATIONJUMPER WIRE(CUT TO ENABLE)

PRODUCT DESIGN68 Rev. 11. In any application:If "G" from the thermostat is connected to "G" on thefurnace two-stage integrated con

PRODUCT DESIGN69 Rev. 1CFMADJUSTNORM(+)(-)TESTHEATABCDCOOLABCDCUT TOENABLEDEHUMIDIFYJW03VSPDCIRCULATOR BL O WERSPEEDTAPSELECTORPINSCFM LED(RED)Circula

PRODUCT IDENTIFICATION7 Rev. 1This section will identify the models covered and the changes per each model group from one release to the next.Model #

PRODUCT DESIGN70 Rev. 1CIRCULATOR BLOWER TIMINGSSingle Stage 80% & 90% Furnaces and 80% TwoStage FurnacesAll items in this section refer to the ai

PRODUCT DESIGN71 Rev. 1Cabinet Width Filter Size (Inches) Filter Area (in2)16 1/2 14 X 25 X 1 35020 1/2 16 X 25 X 1 40024 1/2 20 X 25 X 1 500BOTTOM RE

PRODUCT DESIGN72 Rev. 1600 CFM 800 CFM 1000 CFM 1200 CFM 1400 CFM 1600 CFM 2000 CFMG(C/U)CA045--30 188 * 192 240 288 ---- ---- ----G(C/U)CA070--30 ---

PRODUCT DESIGN73 Rev. 1600 CFM 800 CFM 1000 CFM 1200 CFM 1400 CFM 1600 CFM 2000 CFMG(C/U)CA045--30 376 * 384 480 576 ---- ---- ----G(C/U)CA070--30 ---

PRODUCT DESIGN74 Rev. 1FILTERFILTERFILTERAIR FLOWEXTERNALFILTERRACK KITCENTRALRETURNGRILLEBOTTOMRETURNFILTERFILTERFILTERAIR FLOWOPTIONALFILTERACCESSDO

SYSTEM OPERATION75 Rev. 1NORMAL SEQUENCE OF OPERATION(80% or 90% Models with White-Rodgers 50A50 orHeatcraft HSI 1-1A Integrated Ignition Control)Powe

SYSTEM OPERATION76 Rev. 1ONOFFOPENCLOSEDONOFFONOFFONOFFCLOSEDOPENAir Circulator BlowerGas ValveIgnitorPressure SwitchInduced Draft BlowerThermostat(Ca

SYSTEM OPERATION77 Rev. 1ABNORMAL OPERATION(80% or 90% Models with White-Rodgers 50A50 orHeatcraft HSI 1-1A Integrated Ignition Control)The following

SYSTEM OPERATION78 Rev. 1NORMAL SEQUENCE OF OPERATION(80% or 90% Models with White-Rodgers 50A55 orHeatcraft HSI-2 Integrated Ignition Control)Power U

SYSTEM OPERATION79 Rev. 1Air Circulator BlowerGas ValveIgnitorPressure SwitchInduced Draft BlowerThermostat(Call for Heat)ONOFFONOFFONOFFONOFFOPENCLOS

PRODUCT IDENTIFICATION8 Rev. 1This section will identify the models covered and the changes per each model group from one release to the next.Model #

SYSTEM OPERATION80 Rev. 1ABNORMAL OPERATION(80% or 90% Models with White-Rodgers 50A55 orHeatcraft HSI-2 Integrated Ignition Control)The following pre

SYSTEM OPERATION81 Rev. 1NOTE: There is a twenty minute lockout if the pressureswitch has tripped five times during a single call for heat.10. Primary

SYSTEM OPERATION82 Rev. 1Symptoms ofAbnormalOperationAssociatedRed LED Code(See Note 2)Fault Description(s) Possible Causes Corrective ActionCautions

SYSTEM OPERATION83 Rev. 1Symptoms ofAbnormalOperationAssociatedRed LED Code(See Note 2)Fault Description(s) Possible Causes Corrective ActionCautions

SYSTEM OPERATION84 Rev. 1NORMAL SEQUENCE OF OPERATION(80% Models with White-Rodgers 50A52 Radiant SenseIgnition Control)Power UpThe normal power up se

SYSTEM OPERATION85 Rev. 1HEATING TIMING CHART FOR WHITE-RODGERS 50A52RADIANT SENSE IGNITION CONTROLSeconds 0 5 0 45Indoor FanOutdoor FanandCompressorT

SYSTEM OPERATION86 Rev. 1ABNORMAL OPERATION(80% Models with White-Rodgers 50A52 Radiant SenseIgnition Control)1. Internal Control Failure. The system

SYSTEM OPERATION87 Rev. 1NORMAL SEQUENCE OF OPERATION(80% Two-Stage Models with White-Rodgers 50A51-215Integrated Ignition Control)Power UpThe normal

SYSTEM OPERATION88 Rev. 1Cooling ModeThe normal operational sequence in cooling mode is asfollows:1. R and Y thermostat contacts close, initiating a

SYSTEM OPERATION89 Rev. 10 10 273134 64 0 5 30 60,90120, or 180AirCirculatorBlowerGas ValveIgnitorPressureSwitchesInduced DraftBlowerThermostatHighLow

PRODUCT IDENTIFICATION9 Rev. 1This section will identify the models covered and the changes per each model group from one release to the next.Model #

SYSTEM OPERATION90 Rev. 1GUIS/GCIS Example 4: Initial Call For High Heat, Subsequent Call To Low Heat0 10 273134 64 0 5 30 60,90120, or 190AirCirculat

SYSTEM OPERATION91 Rev. 1Seconds 0 5 0 45Indoor FanOutdoor FanandCompressorThermostatONOFFONOFFONOFFCOOLING TIMING CHART FOR WHITE-RODGERS 50A51-215TW

SYSTEM OPERATION92 Rev. 1ABNORMAL OPERATION(80% Two Stage Models with White-Rodgers 50A51-215Integrated Ignition Control)The following presents the pr

SYSTEM OPERATION93 Rev. 1NORMAL SEQUENCE OF OPERATION(80% Two-Stage Variable Speed Models with White-Rodgers 50A51-225 Integrated Ignition Control)(90

SYSTEM OPERATION94 Rev. 1Cooling ModeThe normal operational sequence in cooling mode is asfollows:1. R and Y thermostat contacts close, initiating a

SYSTEM OPERATION95 Rev. 10 10 27 31 34 64 94 0 5 30 60, 90 90, 120,120, or 150, or180 210AirCirculatorBlowerGas ValveIgnitorPressureSwitchesInducedDra

SYSTEM OPERATION96 Rev. 1Example 4: Initial Call For High Heat, Subsequent Call To Low HeatExample 3: Initial Call For Low Heat, Change In Call To Hig

SYSTEM OPERATION97 Rev. 10 10 27 28 31 61 91 0 15 30 60, 90 90, 120,120, or 150, or180 210AirCirculatorBlowerGas ValveIgniterPressureSwitchesInduced D

SYSTEM OPERATION98 Rev. 1Example 4: Initial Call For High Heat, Subsequent Call To Low Heat0 10 27 28 31 61 91 0 15 30 60, 90 90, 120,120, or 150, or1

SYSTEM OPERATION99 Rev. 10535 0 4575OnOffOnOffOnOffIndoor FanOutdoor FanAndCompressorThermostatTime (sec)030 030OnOffOnOffOnOffIndoor FanOutdoor FanAn