warning - Docs.hvacpartners.com

More documents

Recommendations

Info

STARTIs LED status light on?YESIs LED status light blinking rapidly withouta pause?NOIs LED status light blinking ON/OFFslowly with a combination of short andlong flashes?YESDetermine status code. The status codeis a 2 digit number with the first digitdetermined by the number of shortflashes and the second digit by thenumber of long flashes?Go to section below for the status codethat was flashed.NOYESNOYES59TP5ATroubleshooting GuideNONOIs there 115V at L1 and L2?Is door switch closed?Is door switch closed?YESYESNONOIs there 24V at SEC-1 and SEC-2?Is there 115V going to switch?Is circuit breaker closed?YES YES YESReplace furnace control.Replace door switch.Check for continuity in wire from circuitbreaker to furnace.Check for correct line voltage polarity. Ifunits are twinned, check for proper lowvoltage(24V) transformer phasing.Replace transformer.Close circuit breaker and go back toSTART.To recall status code briefly remove and reconnect one RED wire from the draftsafeguard switch to display stored status code. You can also recall the previousstatus code by momentarily shorting the TEST/TWIN terminal to Com24V terminaluntil the LED goes out. LED will flash the status code of the previous fault or statuscode #11 (1 short and 1 long flash) if there was no previous fault. After the controlrepeats the code 4 times, the control will start the component test sequence. Onceinitiated the control will turn the inducer ON at high-heat speed. The inducer will runfor the entire component test. The HSI, blower motor LO HEAT speed, HI HEATspeed, and COOL speed will run for 10 – 15 seconds each. Gas valve andhumidifier will not be turned on. When the blower motor is turned OFF the inducerwill be switched to low-speed for 10 seconds.Check room thermostat orinterconnecting cable.NOWas there a previous status code otherthan #11?NODoes the control respond to W/W1, W2,Y1, Y/Y2, and G (24V) thermostatsignals?NOIs 24V present at W/W1, W2, Y1, Y/Y2 orG thermostat terminals on the furnacecontrol?YESYESRun system through a low-heat, highheat,or cooling cycle to check operation.Status codes are erased after 72 hours.Disconnect all the thermostat wires fromthe furnace control.Replace furnace control.YESDoes the problem repeat when using ajumper wire?NOThe thermostat is not compatible with thefurnace control. Either install a ballastresistor, connect the Com24V thermostatterminal to the thermostat, or replace thethermostat.NOFig. 62 - Troubleshooting GuideA11323A80
11 NO PREVIOUS CODE – Stored codes areerased after 72 hours. Run systemthrough a low-heat, high-heat, or coolingcycle to check system.12 BLOWER ON AFTER POWER UP –(115V OR 24V) – Normal operation.Blower runs for the selected blower offdelay,if unit is powered up during a callfor heat (R-W/W1 closed) or when (R-W/W1 opens) during the blower on-delayperiod.13 LIMIT CIRCUIT LOCKOUT – Lockoutoccurs if the limit or flame rollout is openlonger than 3 minutes. Control will autoresetafter 3 hours. See code 33.14 IGNITION LOCKOUT – System failed toignite gas and prove flame in 4 attempts.Control will auto-reset after 3 hours. Seestatus code 34.21 GAS HEATING LOCKOUT – Turn offpower and wait 5 minutes to retry. Checkfor:- Stuck closed gas valve relay on control.- Miswire or short to gas valve wire.22 ABNORMAL FLAME-PROVING SIGNALFlame is proved while gas valve is deenergized.Inducer will run until fault iscleared. Check for:- Stuck open or leaky gas valve.23 PRESSURE SWITCH DID NOT OPEN –Check for:- Obstructed pressure tube.- Pressure switch stuck closed.24 SECONDARY VOLTAGE FUSE IS OPENCheck for:- Short circuit in secondary voltage (24V)wiring including thermostat leads.Disconnect thermostat leads to isolateshort circuit.31 HIGH-HEAT PRESSURE SWITCH ORRELAY DID NOT CLOSE ORREOPENED - Check for:- Control relay may be defective.- Gas valve is miswired.- See status code 32.32 LOW-HEAT PRESSURE SWITCH DIDNOT CLOSE OR REOPENED – If opensduring blower on-delay period, blower willcome on for the selected blower off-delay.If open longer than 5 minutes inducershuts off for 15 minutes before retry.Check for:- Proper vent sizing.- Air leak between vestibule and blowercompartment.- Low inlet gas pressure (if LGPS used).- Disconnected or obstructed pressuretubing.- Defective or miswired pressure switches- Excessive wind.- Plugged condensate drain- Water in vent piping, possible saggingpipe- Restricted vent.- Defective Inducer motor.- Low inducer voltage (115 VAC)33 LIMIT CIRCUIT FAULT – Indicates thelimit or flame rollout is open. Blower willrun for 4 minutes or until open switchremakes whichever is longer. If openlonger than 3 minutes, code changes tolockout #13. If open less than 3 min.status code #33 continues to flash untilblower shuts off. Flame rollout requiresmanual reset. Check for:- Loose blower wheel.- Defective switch or connections.- Dirty filter or restricted duct system.- Improper gas input adjustment- Improper limit switch or no limit gasket.34 IGNITION PROVING FAILURE – If flameis not sensed during the trial for ignitionperiod, the control will repeat the ignitionsequence 3 more times before lockout #14occurs. If flame signal is lost during theblower on-delay period, blower will comeon for the selected blower off-delay.Check the following items first beforeproceeding to the next step.- Gas valve turned off.- Manual shut-off valve.- Green/Yellow wire MUST be connectedto furnace sheet metal.- Flame sensor must not be grounded.To determine whether the problem is inthe gas valve, igniter, or flame sensor thesystem can be operated in the componenttest mode to check the igniter. Firstremove the R thermostat connection fromthe control and initiate the component testsequence. Does the igniter gloworange/white by the end of the 15 secondwarm-up period?NOYES43 LOW-HEAT PRESSURE SWITCHOPEN WHILE HIGH-HEATPRESSURE SWITCH IS CLOSED -Check for:- Low-heat pressure switch stuckopen.- Disconnected or obstructedpressure tube.- Miswired pressure switches.- Low inlet gas pressure (if LGPSused).Unplug igniter harness from control andinitiate another component testsequence. Check for 115V between pin1 and NEUTRAL-L2 on the control. Was115V present for the 15 second period?NOYES45 CONTROL CIRCUITRYLOCKOUT Auto-resetafter 1 hour lockout dueto:- Flame circuit failure.- Gas valve relay stuckopen.- Software check error.Reset power to clearlockout. Replace controlif code repeats.Replace furnace control.Check for continuity in theharness and igniter. Replacedefective component.Reconnect the R thermostat lead and setthermostat to call for heat. Connectvoltmeter across gas valve connections.Does gas valve receive 24V?YESNOCheck connections. If OK,replace control.Check that all gas valves areturned on. Replace valve.Does gas valve open and allow gas toflow?YESDo the main burners ignite?YESNONOCheck for:- Inadequate flame carryoveror rough ignition.- Low inlet gas pressure.- Proper firing rate.Do the main burners stay on?NOYESAllow blower to come on andrepeat test to check forintermittent operation.Repeat call for heat and check flamesensor current during trial for ignitionperiod. Is the DC microamps below 0.5?YESClean flame sensor with fine steel wooland recheck current. Nominal current is4.0 to 6.0 microamps.NOCheck connections and retry.If current is near typical value(4.0-6.0 nominal) and burnerswill not stay on, repeat checkin high-heat. If burners willstill not stay on replacecontrol. If burners operate inhigh-heat then switch to lowheat,check manifoldpressure. If OK, checkburner carryover and flamesensor location.NOIs current near typical value? Replace electrode.YESNOWill main burners ignite and stay on? Replace furnace control.YESFixed.59TP5ATroubleshooting Guide (Cont)A11323B81
Page 3 and 4:
SAFETY CONSIDERATIONS! WARNINGFIRE,
Page 5 and 6:
6. Before removing a new control fr
Page 7 and 8:
!LOCATIONCAUTIONPERSONAL INJURY AND
Page 9 and 10:
Fig. 4 - Prohibited InstallationsA1
Page 11:
FURNACEINPUT(BTUH)Table 3 - Minimum
Page 14 and 15:
Remove pressure switch tube fromfro
Page 16 and 17:
5If alternate vent positionis requi
Page 18 and 19:
INSTALL CLAMPS ON DRAIN TUBEATTACH
Page 20 and 21:
59TP5AINSTALLATIONUpflow Installati
Page 22 and 23:
FURNACE CASING WIDTH14---3/16 (360)
Page 24 and 25:
FURNACE(OR COIL CASINGWHEN USED)FUR
Page 26 and 27:
59TP5AANY COMBINATION OF 1, 2, OR 3
Page 28 and 29:
59TP5AAIR DUCTSGeneral Requirements
Page 30 and 31: NOMINALIRON PIPESIZEIN. (MM)Table 8
Page 32 and 33: 59TP5A8. Attach furnace J-Box cover
Page 34 and 35: 1To Humidifier LeadsTo HUM Terminal
Page 36: NOTES FOR THERMOSTAT WIRING DIAGRAM
Page 39 and 40: Allowable vent and combustion air t
Page 41 and 42: 6. Tighten the clamp around the out
Page 43 and 44: Table 12 - Maximum Allowable Expose
Page 45 and 46: Table 15 - Maximum Equivalent Vent
Page 47 and 48: 76Any other unusedknockout may be u
Page 49 and 50: Rotate vent elbow torequired positi
Page 51 and 52: HORIZONTAL RIGHT -VERTICAL VENT CON
Page 53 and 54: VV59TP5AItem Clearance Description
Page 55 and 56: Roof T e rm ination (Pref erred)At
Page 57 and 58: Ventilated CombustionAir intake pip
Page 59 and 60: In Canada, the input rating must be
Page 61 and 62: !CAUTIONFURNACE OVERHEATING HAZARDF
Page 63 and 64: 59TP5AFig. 54 - Service Label Infor
Page 65 and 66: U.S.A. and CanadaU.S.A. Only U.S.A.
Page 67 and 68: SERVICE AND MAINTENANCEPROCEDURES!
Page 69 and 70: !CAUTIONCUT HAZARDFailure to follow
Page 71 and 72: fully seated forward in the burner
Page 73 and 74: NOTE: No thermostat signals may be
Page 75 and 76: 59TP5AFig. 60 - Blower AssemblyA113
Page 77 and 78: the high -heat pressure switch HPS
Page 79: memory to be automatically used fol
Page 83 and 84: PARTS REPLACEMENT INFORMATION GUIDE
show all

warning - Docs.hvacpartners.com

Create successful ePaper yourself

Delete template?

Save as template?