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Daikin DBG Series, Service Instructions Manual

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Daikin DBG Series Service Instructions Manual Download Page 108

108 

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Summary of Contents for DBG Series

Page 1: ...CE OR SERVICE PROCEDURES IF YOU SERVICE THIS UNIT YOU ASSUME RESPONSIBILITY FOR ANY INJURY OR PROPERTY DAMAGE WHICH MAY RESULT IN ADDITION IN JURISDICTIONS THAT REQUIRE ONE OR MORE LICENSES TO SERVICE...

Page 2: ...mable liquids or vapors in the vicinity of this appliance as property damage or personal injury could occur Have your contractor point out and identify the various cut off devices switches etc that se...

Page 3: ...e a venting terminal may discharge a combination of a hot lubricating oil and refrigerant b flammable mixture if system is contaminated with air in a stream of spray which may be dangerous to anyone i...

Page 4: ...Stainless Steel Exchanger Controls A Electro mechanical controls X X X X X X X X A 15 16 17 18 19 20 21 22 23 24 Revision Levels Major Minor X X X X A Powered convenience outlet B Non powered conveni...

Page 5: ...ust never be obstructed If used do not allow the economizer manual fresh air damper motorized fresh air damper to become blocked by snow or debris In some climates or locations it may be necessary to...

Page 6: ...and return duct opening areas as damage to the unit might occur NOTE The unit and curb accessories are designed to allow vertical duct installation before unit placement Duct installation after unit...

Page 7: ...e ampacity shown on the unit s database Size wires in accor dance with the ampacity tables in Article 310 of the National ElectricalCode Iflongwiresarerequired itmaybenecessary to increase the wire si...

Page 8: ...mproper voltage or phase unbalance ELECTRICAL ENTRANCE LOCATIONS Unit is equipped with a Low Voltage Terminal Block and has Single Point wiring to the contactor Low Voltage Control Wiring 1 A 24V ther...

Page 9: ...to substances death or serious which can cause illness and which cause cancer birth defects or other reproductive harm are known to the This product contains fiberglass insulation State of California...

Page 10: ...SYSTEM OPERATION 10 Typical Package Cooling or Package Gas DBC DBG XXX XXX Indoor Coil Outdoor Coil Thermostatic Expansion Valve...

Page 11: ...d heating and cooling thermostats with an adjustable heat anticipator NOTE Some night setback thermostats that do not have a common terminal use a power robbing circuit in the off cycle to maintain th...

Page 12: ...is equipped to operate on the type of gas available The gas line installation mustcomplywithlocalcodes orintheabsenceoflocalcodes with the latest edition of the National Fuel Gas Code NFPA 54 ANSI Z22...

Page 13: ...CLOSING ITS 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 48 KPA CAUTION TO AVOID PROPERTY DAMAGE OR PERSONAL IN...

Page 14: ...L 1500 GAL 2000 GAL 3500 GAL 750K BTU HR 300 CFH 750 GAL 1000 GAL 1500 GAL 2000 GAL 2500 GAL 4000 GAL 5000 GAL AVERAGE RATE HOUR WITHDRAWL IN 8 HOUR PERIOD PROPANE GAS PIPING CHARTS Sizing Between Fir...

Page 15: ...ill notfunctionsatisfactorilyifsupplygaspressureislessthan 5 5 w c or greater than 10 5 w c NOTE A minimum horizontal distance of 48 between the regulator and the furnace flue discharge is required 5...

Page 16: ...actor must be certain that All supply and return air ductwork is in place properly sealed and corresponds with installation instructions All thermostats are mounted and wired in accordance with instal...

Page 17: ...tor will operate so RPM can be checked For gas heat units the airflow must be adjusted so that the air temperature rise falls within the ranges given stated on Data Plate Electrical Input Check Make p...

Page 18: ...ted in the burner compartment the control then initiates a 15 second pre purge time delay During this period theventormotorwillclearthecombustionchamber of any residual gas 5 After the pre purge perio...

Page 19: ...first stage compressor should now be operating Allow the unit to run 10 minutes make sure cool air is being supplied by the unit 7 Lower the cooling temperature further until second stage COOL HIGH C...

Page 20: ...T DAMAGE DUE TO DUST AND LINT BUILD UP ON INTERNAL PARTS NEVER OPERATE UNIT WITHOUT AN AIR FILTER INSTALLED IN THE RETURN AIR SYSTEM CAUTION Everyapplicationmayrequireadifferentfrequencyofreplace ment...

Page 21: ...s panel NOTE Periodic observation of the flame and a log of C02 measurements are recommended This will aid in determining whether the furnace is operating efficiently or if the furnace requires cleani...

Page 22: ...tacts S 7 Open Control Circuit Test Control Circuit with Voltmeter S 4 Low Voltage Test Voltage S 1 Faulty Evap Fan Motor Repair or Replace S 16 Shorted or Grounded Fan Motor Test Motor Windings S 16...

Page 23: ...4 Faulty Induced Draft Blower Test Blower S 303 Dirty Flame Sensor Low uA Clean Flame Sensor S 314 Flame Sensor not in Flame Low uA Test Adjust Position of Flame Sensor S 314 Faulty Gas Valve Replace...

Page 24: ...eration Test 33 S 18 Testing Crankcase Heater Optional Item 33 S 50 Checking Heater Limit Control s 33 S 100 Refrigeration Repair Practice 34 S 101 Leak Testing 34 S 102 Evacuation 34 S 103 Charging 3...

Page 25: ...he voltage tabulation as shown If the voltage falls below the minimum voltage check the line wire size Long runs of undersized wire can cause low voltage If wire size is adequate notify the local powe...

Page 26: ...trouble is in the thermostat or wiring 4 Check the continuity of the thermostat and wiring Repair or replace as necessary S 3B COOLING ANTICIPATOR The cooling anticipator is a small heater resistor i...

Page 27: ...normally open con tacts or opens the normally closed contacts When the coil is de energized springs return the contacts to their normal position NOTE Most single phase contactors break only one side o...

Page 28: ...e present Failure to do so may cause property damage personal injury or death Checking EBTDR High Voltage Contacts 1 With power off remove wires from terminals NC COM and NO 2 Using a VOM check for re...

Page 29: ...itself with a rise in pressure The low pressure control is designed to cut out open at approximately 22 PSIG 7 PSIG It will automatically cut in close at approximately 50 PSIG 7 PSIG Test for continu...

Page 30: ...the increase in voltage across the start winding will energize the start relay holding coil and open the contacts to the start capacitor Two quick ways to test a capacitor are a resistance and a capac...

Page 31: ...SOR WINDINGS WARNING Hermetic compressor electrical terminal venting can be dangerous When insulating material which supports a hermetic compressor or electrical terminal suddenly disintegrates due to...

Page 32: ...electrical problem exists and must be found and corrected The circuit protective device rating must be checked and its maximum rating should coincide with that marked on the equipment nameplate With...

Page 33: ...tinuity should test continuous If not replace The condition of the scroll flanks is checked in the following manner 1 Attach gauges to the high and low side of the system 2 Start the system and run a...

Page 34: ...o finish charging the system to working pressure then apply the detector to suspect areas If leaks are found repair them After repair repeat the pressure test If no leaks exist proceed to system evacu...

Page 35: ...cause future prob lems 1 Using a quality set of charging scales weigh the proper amountofrefrigerantforthesystem Allowliquidrefrigerant only to enter the high side 2 After the system will take all it...

Page 36: ...g by the expansion valve results in high suction pressure cold suction line and possible liquid slugging of the compressor If these symptoms are observed 1 Check for an overcharged unit by referring t...

Page 37: ...lizer tube is plugged 5 Capture the charge replace the valve and drier evacuate and recharge S 112 CHECKING RESTRICTED LIQUID LINE When the system is operating the liquid line is warm to the touch If...

Page 38: ...60 8 6 162 0 57 0 264 0 87 4 366 0 110 4 468 0 129 0 600 0 149 0 62 10 0 164 0 57 7 266 0 87 9 368 0 110 8 470 0 129 3 604 0 149 5 64 11 3 166 0 58 4 268 0 88 4 370 0 111 2 472 0 129 7 608 0 150 1 66...

Page 39: ...9 88 86 84 82 80 78 308 90 88 86 84 82 80 317 92 90 88 86 84 82 326 94 92 90 88 86 84 335 96 94 92 90 88 86 345 98 96 94 92 90 88 354 100 98 96 94 92 90 364 102 100 98 96 94 92 374 104 102 100 98 96 9...

Page 40: ...ystem for a minimum of twelve 12 hours and recheck the pressure drop across the drier Pressure drop should not exceed 6 PSIG 7 Continue to run the system for several days repeatedly checking pressure...

Page 41: ...talled on a drive the initial tension will drop rapidly during the first few hours Check tension frequently during the first 24 hours of operation Subsequent retensioning should fall between the minim...

Page 42: ...OL DCG units use a snap disk type primary limit device Some times referred to as stat on a stick The limit setting is fixed and must not be readjusted in the field TESTING PRIMARY LIMIT CONTROL Refer...

Page 43: ...ain if still open replace the control 3 If limit tests open allow unit to cool and retest 4 If still open replace the control TESTING AUXILIARY LIMIT CONTROL S 302 CHECKING FLAME ROLLOUT SWITCH DCGuni...

Page 44: ...should be drawn into firing tubes a If only one burners flame is not drawn into the tube that tube is restricted b If withouttheaircirculationblowerrunning allflames are not drawn into the tubes eith...

Page 45: ...fice which has a fixed bore and position A GAS STREAM B DENT OR BURR GAS STREAM B The length of Dimension A determines the angle of Gas Stream Defraction B A dent or burr will cause severe deflection...

Page 46: ...sure should be a nominal 7 w c b 2 stage heat models only Manifold pressure on low stage should be 2 0 w c 3 w c c Manifold pressure for single stage heat models and 2 stage heat models on high stage...

Page 47: ...operty damage personal injury or death 1 Remove wires from the electrical terminals 2 Using a VOM check from Common to NO Normally Open should read open IfswitchreadsasnotedproceedtoStep3 otherwise re...

Page 48: ...ks the pressure switch for open condition If the pressure switch is closed the control will flash code 3 and wait for the pressure switch to open 2 Theinduceddraftmotorisenergizedandthecontrolflashes...

Page 49: ...lower motor speed tap see wiring diagram and limit An interruption in electrical power during a heating cycle may also cause the auxiliary limit to open The automatic re set secondary limit is located...

Page 50: ...signal is not present the control will de energize the gas valve and retry for ignition or lockout DSI Direct Spark Ignition Systems HIGH VOLTAGE Disconnect ALL power before servicing or installing th...

Page 51: ...51 ACCESSORIES GAS ELECTRIC...

Page 52: ...ACCESSORIES 52 GAS ELECTRIC...

Page 53: ...53 ACCESSORIES...

Page 54: ...ACCESSORIES 54...

Page 55: ...URB D14CURB180300 Measurement in inches MOTORIZED FRESH AIR DAMPERS Models A B C 15 25 Ton 78 123 14 5 D14CURB180300 INSULATED PANELS A C B MODELS MOTORIZED MANUAL 15 25 Tons S50MFD180300 S50MFD180300...

Page 56: ...WITH DB MODELS FLUE EXTENSION KIT MODELS KIT A B C D E 15 25 Tons 220 GX 03 4 25 3 00 6 50 3 18 36 00 FLUE EXTENSION KIT MODEL VOLTAGE USED WITH 424651121 208 230V 15 25 Ton 424651131 460V 15 25 Ton 4...

Page 57: ...BEFORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH Wiring is subject to change Always refer to the wiri...

Page 58: ...NV OUTLET 15 25 TON UNITS GFI CO L1 L2 L3 CC T1 T2 T3 TRAN X2 X3 BK OB BK X1 SEE NOTE 2 GR GR WH H4 H3 H2 H1 BK SEE NOTE 1 RD 208V 230V 460 575V NOTES 1 FOR 208V OPERATION MOVE BLACK WIRE FROM H2 TO H...

Page 59: ...OR UNITS WITH SERIALS 1607 AND NEWER 15 25 TON UNITS 0140L05871 A NOTES 1 FOR 208v OPERATION MOVE BLACK WIRE FROM H3 TO H2 ON TRANSFORMER 460v AND 575v UNITS WILL LEAVE FACTORY WITH BK WIRE CONNECTED...

Page 60: ...OSE ON TEMPERATURE FALL 1 2 Y O C W1 G R E R Y Y R G O O G W BR BL BL R PACKAGE UNIT LOW VOLTAGE JUNCTION BOX BL W2 C R Y O W1 G E TYPICAL HP ROOM THERMOSTAT 1 2 OUTDOOR THERMOSTAT CLOSE ON TEMPERATUR...

Page 61: ...OTE 2 NOTES 1 USE COPPER CONDUCTORS ONLY 2 ALTERNATE WIRING FOR HEAT PUMP APPLICATION MAKE A PARALLEL CONNECTION FROM THE REVERSING VALVE 24 VAC POWER SUPPLY TO THE HEAT PUMP TERMINALS ON THE CONTROL...

Page 62: ...refer to the wiring diagram on the unit for the most up to date wiring FOR UNITS WITH SERIALS 1409 AND NEWER MOTOR 2 LINE 2 VARIABLE SPPED FULL SPEED 480 600 VAC 120 277 VAC 10 AMP MAX CUT OUT SPEED...

Page 63: ...BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH Wiring is subject to change Always refer to the wiring diagram on the unit for the most up to date wiring FACTORY INSTALL...

Page 64: ...BR RD PK WH BL PK PK PK PK BR RD WH BK BK BL BR RD PK WH PK BL TB XREL SDCONT SEE NOTE 3 SEE NOTE 1 TO X13 MOTOR TO CONTACTOR COMMON SEE NOTE 5 SEE NOTE 2 NOTES 1 RED JUMPER SHOWN ON UNIT DIAGRAM IS...

Page 65: ...40L05994 A BK BC TB1 BLOWER CONTACTOR TERMINAL BLOCK COMPONENT LEGEND WIRE CODE BL BK PK RD OR BLUE BLACK PINK RED ORANGE WIRING LINE VOLTAGE LOW VOLTAGE T1 T2 T3 L1 L2 L3 L1 L2 L3 3 PHASE MONITOR BC...

Page 66: ...BLOCK SMOKE DETECTOR COMPONENT LEGEND WIRE CODE BL BK PK RD OR BLUE BLACK PINK RED ORANGE WIRING LINE VOLTAGE LOW VOLTAGE SMK EMG T1 T2 T3 L1 L2 L3 L1 L2 L3 3 PHASE MONITOR BC RD OR OR BK RD TB1 DH T1...

Page 67: ...requirements UNIT HEATER KIT MODEL NUMBER MINIMUM CFM Downshot HEATER KIT MODEL NUMBER MINIMUM CFM Downshot HEATER KIT MODEL NUMBER MINIMUM CFM Downshot EHK3 31 5250 EHK4 31 5250 EHK7 31 5250 15 TON E...

Page 68: ...OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH Wiring is subject to change Always refer to the wiring diagram on the...

Page 69: ...PC 9 PIN CONNECTOR HTR HEATER ELEMENT TL TH ERM AL LIM IT RS RELAY SEQUENCER FL FUSE LINK OR NO N RESETTING THERMO STAT OP OVERLO AD PRO TECTIO N 01 40L01 003 A BK BK BK BK YL YL YL RD RD RD M1 M2 OP...

Page 70: ...TL THERMAL LIMIT RS RELAY SEQUENCER FL FUSE LINK OR NON RESETTING THERMOSTAT OP OVERLOAD PROTECTION 0140L02287 A T2 COM NO T1 WIRING CODE HIGH VOLTAGE LOW VOLTAGE BK BK BK BK YL YL YL RD RD RD M1 M2...

Page 71: ...E MODEL EHK3 46 COMPONENT CODE PC 9 PIN CONNECTOR HTR HEATER ELEMENT TL THERMAL LIMIT RS RELAY SEQUENCER FL FUSE LINK OR NON RESETTING THERMOSTAT OP OVERLOAD PROTECTION CT CONTACTOR 0140L02353 A BK BK...

Page 72: ...L FUSE LINK OR NON RESETTING THERMOSTAT O P OVERLOAD PROTECTIO N LOW VOLTAGE W IRING CODE HIGH VOLTAGE BK BK BK BK BK YL YL YL RD RD RD M1 M2 OP TL TL TL HTR 3 HTR 2 FL FL HTR 1 FL RS 2 M3 M4 RS 1 M1...

Page 73: ...RELAY SEQUENCER FL FUSE LINK OR NON RESETTING THERMOSTAT OP OVERLOAD PROTECTION T2 COM NO T1 WIRING CODE HIGH VOLTAGE LOW VOLTAGE BK BK BK BK BK YL YL YL RD RD RD M1 M2 OP TL TL TL HTR 3 HTR 2 FL FL H...

Page 74: ...TL THERMAL LIMIT RS RELAY SEQUENCER FL FUSE LINK OR NON RESETTING THERMOSTAT OP OVERLOAD PROTECTION CT CONTACTOR LOW VOLTAGE WIRING CODE HIGH VOLTAGE BK BK BK YL YL OP TL TL TL HTR 3 HTR 2 FL FL HTR...

Page 75: ...ON LOW VOLTAG E W IRING CODE HIG H VO LTAG E BK BK BK BK BK YL YL YL RD RD RD M1 M2 OP TL TL TL HTR 3 HTR 2 FL FL HTR 1 FL RS 2 M3 M4 RS 1 M1 M2 OP L3 L2 L1 OP BK BK BK BK YL YL YL RD RD RD M1 M2 OP T...

Page 76: ...INK OR NON RESETTING THERMOSTAT OP OVERLOAD PROTECTION CT CONTACTOR BK YL YL RD L1 OP TL TL TL HTR 3 HTR 2 FL FL HTR 1 FL OP L3 L2 L1 OP LOW VOLTAGE WIRING CODE HIGH VOLTAGE L2 L3 RD BK YL BK BK YL YL...

Page 77: ...FORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH Wiring is subject to change Always refer to the wiring...

Page 78: ...INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH Wiring is subject to change Always refer to the wiring diagram on the uni...

Page 79: ...4 46 EHK7 46 COMPONENT CODE PC 9 PIN CONNECTOR HTR HEATER ELEMENT TL THERM AL LIMIT RS RELAY SEQUENCER FL FUSE LINK OR NON RESETTING THERMOSTAT OP OVERLOAD PROTECTION 0140L01002 A BK BK BK BK BK BK WH...

Page 80: ...ENT CODE PC 9 PIN CONNECTOR HTR HEATER ELEMENT TL THERMAL LIMIT RS RELAY SEQUENCER FL FUSE LINK OR NON RESETTING THERMOSTAT OP OVERLOAD PROTECTION 0140L02286 A T2 COM NO T1 BK BK BK BK BK BK WH BL RS...

Page 81: ...LTAGE MODEL EHK4 46 EHK7 46 COMPONENT CODE PC 9 PIN CONNECTOR HTR HEATER ELEMENT TL THERMAL LIMIT RS RELAY SEQUENCER FL FUSE LINK OR NON RESETTING THERMOSTAT OP OVERLOAD PROTECTION CT CONTACTOR 0140L0...

Page 82: ...TER ELEMENT TL THERMAL LIMIT RS RELAY SEQUENCER FL FUSE LINK OR NONRESETTING THERMOSTAT OP OVERLOAD PROTECTION 01 40L01 001 A BR YL RD BK M1 M2 OP TL TL TL HTR 3 HTR 2 FL FL HTR 1 FL RS 2 M3 M4 RS 1 M...

Page 83: ...FL FUSE LINK OR NONRESETTING THERMOSTAT OP OVERLOAD PROTECTION 0140L02285 A BR YL RD BK M1 M2 OP TL TL TL HTR 3 HTR 2 FL FL HTR 1 FL RS 2 M3 M4 RS 1 M1 YL M2 RD BK OP L3 L2 L1 OP YL RD BK M1 M2 OP TL...

Page 84: ...0 EHK7 60 COMPONENT CODE PC 9 PIN CONNECTOR HTR HEATER ELEMENT TL THERMAL LIMIT RS RELAY SEQUENCER FL FUSE LINK OR NONRESETTING THERMOSTAT OP OVERLOAD PROTECTION CT CONTACTOR 0140L02356 A OP TL TL TL...

Page 85: ...E LINK OR NONRESETTING THERMOSTAT OP OVERLOAD PROTECTION 0140L01000 A WH BL RS 4 M2 M1 BK BK BK BK BK BK BK BK BK BK PU PU WH BR BL 1 PC 2 3 4 5 6 7 8 9 OP L1 L2 L3 OP BK RD M2 YL M1 RS 1 M4 M3 RS 2 F...

Page 86: ...E LINK OR NONRESETTING THERMOSTAT OP OVERLOAD PROTECTION CT CONTACTOR 0140L02358 A RS1 M2 M1 BK BK PU PU WH BR BL 1 PC 2 3 4 5 6 7 8 9 OP L1 L2 L3 OP RD CT1 OP L1 LOW VOLTAGE WIRING CODE HIGH VOLTAGE...

Page 87: ...1409 AND NEWER COMPONENT CODE PC 9 PIN CONNECTOR HTR HEATER ELEMENT TL THERMAL LIMIT RS RELAY SEQUENCER FL FUSE LINK OP OVERLOAD PROTECTION LOW VOLTAGE WIRING CODE HIGH VOLTAGE CT CONTACTOR BK RD YL...

Page 88: ...NNECTOR HTR HEATER ELEMENT TL THERMAL LIMIT RS RELAY SEQUENCER FL FUSE LINK OP OVERLOAD PROTECTION LOW VOLTAGE WIRING CODE HIGH VOLTAGE CT CONTACTOR MODEL EHK3 46 RS1 9 8 7 6 5 4 3 2 PC 1 BR BL BR WH...

Page 89: ...SEQUENCER FL FUSE LINK OP OVERLOAD PROTECTION LOW VOLTAGE WIRING CODE HIGH VOLTAGE CT CONTACTOR MODEL EHK3 60 RS1 9 8 7 6 5 4 3 2 PC 1 BR BL BR WH PU PU BL M 1 M 2 BL WH CT3 CT2 CT1 CT4 BR BL BL WH BK...

Page 90: ...OW VOLTAGE WIRING CODE HIGH VOLTAGE CT CONTACTOR MODEL EHK3 75 RS1 9 8 7 6 5 4 3 2 PC 1 BR BL BR WH PU PU BL M 1 M 2 BL WH CT4 CT3 CT2 CT5 BR BL BL WH BK RD YL BK FL HTR 3 FL FL HTR 2 HTR 1 TL TL TL R...

Page 91: ...ng EHK4 31 EHK7 31 FOR UNITS WITH SERIALS 1409 AND NEWER LOW VOLTAGE WIRING CODE HIGH VOLTAGE MODEL EHK4 31 EHK7 31 COMPONENT CODE PC 9 PIN CONNECTOR HTR HEATER ELEMENT TL THERMAL LIMIT RS RELAY SEQUE...

Page 92: ...AND NEWER COMPONENT CODE PC 9 PIN CONNECTOR HTR HEATER ELEMENT TL THERMAL LIMIT RS RELAY SEQUENCER FL FUSE LINK OR NON RESETTING THERMOSTAT OP OVERLOAD PROTECTION LOW VOLTAGE WIRING CODE HIGH VOLTAGE...

Page 93: ...ENT CODE PC 9 PIN CONNECTOR HTR HEATER ELEMENT TL THERMAL LIMIT RS RELAY SEQUENCER FL FUSE LINK OR NONRESETTING THERMOSTAT OP OVERLOAD PROTECTION WH M2 M1 BK BK BK BK BK BK BK BK PU PU WH BR BL 1 PC 2...

Page 94: ...ENT CODE PC 9 PIN CONNECTOR HTR HEATER ELEMENT TL THERMAL LIMIT RS RELAY SEQUENCER FL FUSE LINK OR NONRESETTING THERMOSTAT OP OVERLOAD PROTECTION WH M2 M1 BK BK BK BK BK BK BK BK BK BK PU PU WH BR BL...

Page 95: ...95 DBC COMMERCIAL 15 25 Ton Packaged Air Conditioner Unit WIRING DIAGRAMS...

Page 96: ...RVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH Wiring is subject to change Always refer to the wiring diagram...

Page 97: ...RVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH Wiring is subject to change Always refer to the wiring diagram...

Page 98: ...RELAY BC EBTDR PLM OPTIONAL HIGH VOLTAGE BLOWER RELAY COMPRESSORCONTACTOR RELAY CCR COMPRESSORCONTACTOR CONDENSERMOTOR COMPRESSO R ECONO MIZER EVAPORATOR MOTOR HIGHPRESSURESWITCH LOW PRESSURESWITCH PO...

Page 99: ...LM TO ECON PLF 3 TB3 LOW VOLTAGE TERMINAL BLOCK 4 TERMINALS FOR 24VAC PWR RD BK BR WIRE AND 6 TERMINALS FOR 24VAC COM BL WIRE 4 CONNECTIONS SHOWN ARE FOR 1 STAGE HEAT OPERATION WHEN 2 STAGE OPERATION...

Page 100: ...100 DBG COMMERCIAL 15 25 Ton Packaged Gas Electric Unit WIRING DIAGRAMS...

Page 101: ...W2 O YL POWER SUPPLY SEE NOTE 4 208V 240V 3 ph 60Hz SEE NOTE 7 TO THERMOSTAT LOW SPEED CB2 L2 T3 L1 T2 L3 T1 HIGH SPEED CB1 L2 T3 L1 T2 L3 T1 OR RD BK GY BL YL YL BL GY BK RD OR L3 T3 L2 CC1 L1 T1 T2...

Page 102: ...SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH Wiring is subject to change Always refer to the wiring diag...

Page 103: ...SUPPLY SEE NOTE 4 460V 575V 3 ph 60Hz SEE NOTE 7 TO THERMOSTAT LOW SPEED CB2 L2 T3 L1 T2 L3 T1 HIGH SPEED CB1 L2 T3 L1 T2 L3 T1 OR RD BK GY BL YL YL BL GY BK RD OR L3 T3 L2 CC1 L1 T1 T2 L3 T3 L2 CC2 L...

Page 104: ...ERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH Wiring is subject to change Always refer to the wiring diagra...

Page 105: ...E SENSER FLAME ROLLOUT BAD SWITCH AUX LIMIT OPEN CHECK PRESSURE SWITCH CHECK PRESSURE SWITCH MAIN LIMIT OPEN BAD SWITCH STICKING GAS VALVE 3 MIN COMP ANTI CYCLE TIMER L2 L3 L1 L2 L3 L1 IIC DIAGNOSTIC...

Page 106: ...IIC DIAGNOSTIC BLINK CODES LINE VOLTAGE YL RD BK PU OR 6 6 SEE ACCESSORY KIT LITERATURE FOR OPTIONAL CONVENIENCE OUTLET WIRING DIAGRAM POWER DIAGRAM DCG300 4 7 F L P M L P PLM PLF BK RD PU L1 L2 L3 T...

Page 107: ...OPTIONAL ECONOMIZER IS INSTALLED REMOVE ECON SHRT PLM AND CONNECT ECON PLM TO ECON PLF 3 TB3 LOW VOLTAGE TERMINAL BLOCK 4 TERMINALS FOR 24VAC PWR RD BK BR WIRE AND 6 TERMINALS FOR 24VAC COM BL WIRE 4...

Page 108: ...Daikin is very interested in all product comments Please fill out the feedback form on the following link https daikincomfort com contact us You can also scan the QR code on the right to be directed...

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