Daikin DM80SE, Service Instructions Manual

Page 1: ...ERSONNEL THAT HAVE BEEN TRAINED TO INSTALL ADJUST SERVICE MAINTENANCE OR REPAIR HEREIN AFTER SERVICE THE EQUIPMENT SPECIFIED IN THIS MANUAL SHOULD SERVICE THE EQUIPMENT THE MANU FACTURER WILL NOT BE R...

Page 2: ...L BEFORE BEGINNING REPAIRS IMPORTANT NOTICES FOR CONSUMERS AND SERVICERS RECOGNIZE SAFETY SYMBOLS WORDS AND LABELS WARNING TO PREVENT THE RISK OF PROPERTY DAMAGE PERSONAL INJURY OR DEATH DO NOT STORE...

Page 3: ...er assistance please contact Outside the U S call 1 713 861 2500 Not a technical assistance line for dealers Your telephone company will bill you for the call CONSUMER INFORMATION LINE DAIKIN BRAND PR...

Page 4: ...El mon xido de carbono puede causar enfermedades severas como da o cerebral permanente muerte Las emisiones de mon xido de carbono pueden circular a trav s del aparato cuando se opera en cualquier mo...

Page 5: ...ervice or parts information U Ultra Low NOx 14ng J 80 80 AFUE B 17 D M 80 S E 60 3 A U 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Brand Minor Revision D Daikin Brand B 1st Revision Con gura on Major Revision B...

Page 6: ...equipped with an ignition device which automatically lights the burner Do not try to light the burner by hand B BEFORE OPERATING smell all around the appliance area for gas Be sure to smell next to t...

Page 7: ...talling the control on a furnace Return any old or new controls to their containers before touching any ungrounded object Product Application This product is designed for NATURAL GAS ONLY This product...

Page 8: ...INLET GAS SUPPLY PRESSURE GAS VALVE This unit is equipped with a 24 volt gas valve controlled during furnace operation by the integrated control module Taps for measuring the gas supply pressure and m...

Page 9: ...to the furnace must be N E C Class 1 and must comply with all applicable codes The furnace must be electrically grounded in accordance with local codes or in their absence with the latest edition of...

Page 10: ...TH DO NOT REMOVE ANY INTERNAL COMPARTMENT COVERS OR ATTEMPT ANY ADJUSTMENT CONTACT A QUALIFIED SERVICE AGENT AT ONCE IF AN ABNORMAL FLAME APPEARANCE SHOULD DEVELOP DM80SE U Connect the correct motor l...

Page 11: ...fic Blower Speed for 2nd Stage Compressor Mode AC2 F01 F09 Model specific Cooling Fan Off Delay CFd 0 120 seconds 65 seconds Cooling Fan On Delay Cnd 0 35 seconds 7 seconds Blower Speed for Gas Heat M...

Page 12: ...cycle through available speed number every time the option button is pressed 3 When the menu button is pressed the current displayed speed shall stop flashing Press the menu button again to select th...

Page 13: ...scribe lines connecting the dimples Cut out the opening on these lines An undersized opening will cause reduced airflow For bottom return connection remove the bottom of the cabinet before setting the...

Page 14: ...ator blower continues running for selected heat off delay period factory set at 120 seconds If required this can be changed in the field Electronic air cleaner is de energized Furnace awaits the next...

Page 15: ...TROUBLESHOOTING 15 DM80SE U...

Page 16: ...TROUBLESHOOTING 16 DM80SE U...

Page 17: ...the Fault Code History up to 5 fault codes from newest to oldest Fault Code Clear Function When the SW1 button is pressed and held for an extended period more than 5 seconds less than 10 seconds the c...

Page 18: ...sly No furnace operation Primary limit circuit is open Insufficient conditioned air over the heat exchanger Blocked filters restrictive ductwork improper circulator blower speed or failed circulator b...

Page 19: ...fails to operate Redundant relay stuck closed alarm Replace integrated control board Furnace fails to operate Inducer communication alarm Check Red Black White harness connections to inducer control b...

Page 20: ...icated by the manufacturer No further lubrication is required Check motor windings for accumulation of dust which may cause overheating Clean as necessary FLAME SENSOR QUALIFIED SERVICER ONLY Under so...

Page 21: ...ifices CAUTION Always connect a manometer to the outlet tap at the gas valve before adjusting the pressure regulator In no case should the final manifold pressure vary more than plus or minus 2 inches...

Page 22: ...160 400 20 45 90 180 360 900 46 78 157 391 21 43 86 171 343 857 47 19 38 76 153 383 22 41 82 164 327 818 48 75 150 375 23 39 78 157 313 783 49 147 367 24 37 75 150 300 750 50 18 36 72 144 360 25 36 72...

Page 23: ...er Tubular Heat Exchanger Pressure Sensor Assembly Flue Pipe Connection Gas Valve Inducer Gas Manifold Assembly Grommet Burner Assembly Integrated Control Module Transformer Blower Door Interlock Swit...

Page 24: ...ed replace withAWM 105 C 2 64 thick insulation of the same gauge or its equivalent CHECKING THERMOSTAT WIRING AND ANTICIPATOR THERMOSTAT AND WIRING DISCONNECT ALL POWER BEFORE SERVICING WARNING 1 Remo...

Page 25: ...ical power and verify proper unit operation DISCONNECT ALL POWER BEFORE SERVICING WARNING CHECKING DUCT STATIC The maximum and minimum allowable external static pressures are found in the specificatio...

Page 26: ...d to reduce temperature rise Decrease blower speed to increase temperature rise Refer to Circulator Blower Speed section in the Product Design section of this manual for speed changing details Tempera...

Page 27: ...windings have a continuity reading reconnect wires Turn power on to the furnace and turn the thermostat on in the heating mode Check voltage for 115V at the induced draft motor terminals during the tr...

Page 28: ...of fuel being consumed The line pressure supplied to the gas valve must be within the range specified below The supply pressure can be measured at the gas valve inlet pressure tap or at a hose fittin...

Page 29: ...nnections LINE VOLTAGE NOW PRESENT WARNING 3 Turn ON the gas and electrical power supply and operate the furnace 4 Measure gas manifold pressure with burners firing Adjust manifold pressure using the...

Page 30: ...be powered and the thermostat satisfied no call for heat or cool Depress and hold the SW1 button for at least 10 seconds but not more than 15 seconds until the LED is blinking in AMBER then release Th...

Page 31: ...less than the minimum specified check for high resistance wiring connections sensor to burner gap dirty flame sensor or poor grounding 6 If absolutely no reading check for continuity on all component...

Page 32: ...FIED REPLACEMENT PARTS MUST BE USED WHEN SERVICING 1 SET HEAT ANTICIPATOR ON ROOM THERMOSTAT AT 0 7 AMPS NOTES HI VOLTAGE FIELD HI VOLTAGE 120V LOW VOLTAGE FIELD LOW VOLTAGE 24V COLOR CODES RD RED GY...

Page 33: ...N RD 3 1 WH 2 4 BL 5 4 3 2 1 WH 40 VA TRANSFORMER 115 VAC 24 VAC BK BR BR GR BL BL PK BR PU SENSOR YL FLAME BR 1 GAS VALVE 2 M C BL BLOWER COMPARTMENT AUTO RESET AUXILIARY LIMIT CONTROL PU BL AUTO RES...

Page 34: ...PRODUCT REGISTRATION Thank you for your recent purchase Though not required to get the protection of the standard warranty registering your product is a relatively short process and entitles you to ad...