Electra DUO 38 DCI Manuel de service

DNG DC Inverter SeriesIndoor Units Outdoor UnitsDNG 50 DCI DCI 50DNG 60 DCI DCI 60DNG 72 DCIDCI 72DCI 72ZDNG 80 DCI DCI 80APRIL 2007REFRIGERANTR410A

2-3PRODUCT DATA SHEETRevision Y07-02Service Manual - DNG DCI2.3 DNG72 DCI Model Indoor Unit DNG 72 DCIModel Outdoor Unit DCI 72 R410AInstallation Meth

2-4PRODUCT DATA SHEETRevision Y07-02 Service Manual - DNG DCI2.4 DNG72Z DCI Model Indoor Unit DNG 72 DCIModel Outdoor Unit DCI 72 Z R410AInstallation

2-5PRODUCT DATA SHEETRevision Y07-02Service Manual - DNG DCI2.5 DNG80 DCI Model Indoor Unit DNG 80 DCIModel Outdoor Unit DCI 80 R410AInstallation Meth

3-1RATING CONDITIONS Revision Y07-02Service Manual - DNG DCI3. RATING CONDITIONSStandard conditions in accordance with

4-1OUTLINE DIMENSIONSRevision Y07-02Service Manual - DNG DCI4. OUTLINE DIMENSIONS4.1 Indoor Unit: DNG 50, 60, 72, 80Model A B C D E F G H I J K LDNG5

4-2OUTLINE DIMENSIONSRevision Y07-02 Service Manual - DNG DCI4.2 Outdoor Unit: DCI 504.3 Outdoor Unit: DCI 60CONTENT

4-3OUTLINE DIMENSIONSRevision Y07-02Service Manual - DNG DCI4.4 Outdoor Unit: DCI 72/80CONTENT

5-1PERFORMANCE DATA & PRESSURE CURVESRevision Y07-02Service Manual - DNG DCI5. PERFORMANCE DATA & PRESSURE CURVES5.1 DNG50 DCI / DCI 505.1.1

5-2PERFORMANCE DATA & PRESSURE CURVES Revision Y07-02 Service Manual - DNG DCI5.1.3 HeatingID COIL ENTERING AIR DB TEMPERATURE [C0]OD COIL

5-3PERFORMANCE DATA & PRESSURE CURVESRevision Y07-02Service Manual - DNG DCI5.1.5 Pressure Curves (Cooling – Test Mode) Discharge Pressure VS. Out

ALIST OF EFFECTIVE PAGESRevision Y07-02Service Manual - DNG DCILIST OF EFFECTIVE PAGESNote: Changes in the pages are indicated by a “Revision#” in th

5-4PERFORMANCE DATA & PRESSURE CURVES Revision Y07-02 Service Manual - DNG DCI5.1.6 Pressure Curves (Heating – Test Mode)Suction Pressure V

5-5PERFORMANCE DATA & PRESSURE CURVESRevision Y07-02Service Manual - DNG DCI5.1.7 Capacity Correction Factor Due to Tubing Length Cooling Heating

5-6PERFORMANCE DATA & PRESSURE CURVES Revision Y07-02 Service Manual - DNG DCI5.2 DNG60 DCI / DCI 605.2.1 Cooling Capacity (kW)ID COIL ENT

5-7PERFORMANCE DATA & PRESSURE CURVESRevision Y07-02Service Manual - DNG DCI5.2.3 HeatingID COIL ENTERING AIR DB TEMPERATURE [C0]OD COIL ENTERING

5-8PERFORMANCE DATA & PRESSURE CURVES Revision Y07-02 Service Manual - DNG DCI5.2.5 Pressure Curves (Cooling – Test Mode)Discharge Pressure

5-9PERFORMANCE DATA & PRESSURE CURVESRevision Y07-02Service Manual - DNG DCI5.2.6 Pressure Curves (Heating – Test Mode)Suction Pressure VS.Outdoor

5-10PERFORMANCE DATA & PRESSURE CURVES Revision Y07-02 Service Manual - DNG DCI5.2.7 Capacity Correction Factor Due to Tubing Length Cooli

5-11PERFORMANCE DATA & PRESSURE CURVESRevision Y07-02Service Manual - DNG DCI5.3 DNG72 DCI / DCI72, DNG72 DCI / DCI 72Z5.3.1 Cooling Capacity (k

5-12PERFORMANCE DATA & PRESSURE CURVES Revision Y07-02 Service Manual - DNG DCI5.3.3 HeatingID COIL ENTERING AIR DB TEMPERATURE [C0]OD COIL

5-13PERFORMANCE DATA & PRESSURE CURVESRevision Y07-02Service Manual - DNG DCI5.3.5 Pressure Curves (Cooling – Test Mode)Discharge Pressure VS. Out

iTABLE OF CONTENTSRevision Y07-02Service Manual - DNG DCITable of Contents1. INTRODUCTION ...

5-14PERFORMANCE DATA & PRESSURE CURVES Revision Y07-02 Service Manual - DNG DCI5.3.6 Pressure Curves (Heating – Test Mode)Suction Pressure

5-15PERFORMANCE DATA & PRESSURE CURVESRevision Y07-02Service Manual - DNG DCI5.3.7 Capacity Correction Factor Due to Tubing Length Cooling Heatin

5-16PERFORMANCE DATA & PRESSURE CURVES Revision Y07-02 Service Manual - DNG DCI5.4 DNG80 DCI / DCI 805.4.1 Cooling Capacity (kW)ID COIL EN

5-17PERFORMANCE DATA & PRESSURE CURVESRevision Y07-02Service Manual - DNG DCI5.4.3 HeatingID COIL ENTERING AIR DB TEMPERATURE [C0]OD COIL ENTERING

5-18PERFORMANCE DATA & PRESSURE CURVES Revision Y07-02 Service Manual - DNG DCIDischarge Pressure VS. Outdoor Temp'.100012501500175020

5-19PERFORMANCE DATA & PRESSURE CURVESRevision Y07-02Service Manual - DNG DCISuction Pressure VS.Outdoor Temp'.200300400500600700800900100011

5-20PERFORMANCE DATA & PRESSURE CURVES Revision Y07-02 Service Manual - DNG DCI5.4.7 Capacity Correction Factor Due to Tubing Length Cooli

6-1AIRFLOW CURVESRevision Y07-02Service Manual - DNG DCI6. AIRFLOW CURVES6.1 Model: DNG 50 DCI6.2 Model: DNG 60 DCICONTENT

6-2AIRFLOW CURVES Revision Y07-02 Service Manual - DNG DCI6.3 Model: DNG 72 DCI6.4 Model: DNG 80 DCICONTENT

6-3AIRFLOW CURVESRevision Y07-02Service Manual - DNG DCI6.5 DNG UNITS RANGE AIR FLOW CORRECTION FACTORS (at nominal rating conditions — Test mode).Ai

1-1INTRODUCTIONRevision Y07-02Service Manual - DNG DCI1. INTRODUCTION1.1 GeneralThe DNG DCI ducted split unit range comprises the following RC (heat

7-1SOUND LEVEL CHARACTERISTICSRevision Y07-02Service Manual - DNG DCI7. SOUND LEVEL CHARACTERISTICS7.1 Sound Pressure LevelFigure 17.2 Soud Pressur

7-2SOUND LEVEL CHARACTERISTICS Revision Y07-02 Service Manual - DNG DCIDNG 72 DNG 80FAN SPEED LINEHIMELOCONTENT

7-3SOUND LEVEL CHARACTERISTICSRevision Y07-02Service Manual - DNG DCI7.3 Outdoor units7.4 Sound Pressure Level Spectrum (Measured as Figure 2)DCI 50

7-4SOUND LEVEL CHARACTERISTICS Revision Y07-02 Service Manual - DNG DCIDCI 72 Cooling DCI 72 HeatingDCI 72Z Cooling DCI 72Z HeatingCONTENT

7-5SOUND LEVEL CHARACTERISTICSRevision Y07-02Service Manual - DNG DCIDCI 80 Cooling DCI 80 HeatingCONTENT

8-1ELECTRICAL DATARevision Y07-02Service Manual - DNG DCI8. ELECTRICAL DATA8.1 Single Phase UnitsModel DNG50 DNG60 DNG72 DNG80 Power Supply 1 PH

9-1WIRING DIAGRAMSRevision Y07-02Service Manual - DNG DCI9. WIRING DIAGRAMS9.1 Indoor Unit: DNG 50 DCI9.2 Indoor Unit: DNG 60 DCICONTENT

9-2WIRING DIAGRAMS Revision Y07-02 Service Manual - DNG DCI9.3 Indoor Unit: DNG 72/80 DCICONTENT

9-3WIRING DIAGRAMSRevision Y07-02Service Manual - DNG DCI9.4 Outdoor Unit: DCI 50/609.4.1 DCI 50/60 for Indoor Power Supply9.4.2 DCI 50/60 for Outd

9-4WIRING DIAGRAMS Revision Y07-02 Service Manual - DNG DCI9.5 Outdoor Unit: DCI 72ZABCPRELLORTNOCUDORETAEHESAB)LANOITPO(9PJABCPRETLIFIMEPMOCN

1-2INTRODUCTIONRevision Y07-02 Service Manual - DNG DCI1.3 Indoor Unit The indoor unit is a low silhouette ducted unit, and can be easily fitted to man

9-5WIRING DIAGRAMSRevision Y07-02Service Manual - DNG DCI9.6 Outdoor Unit: DCI 72/80CONTENT

10-1REFRIGERATION DIAGRAMSRevision Y07-02Service Manual - DNG DCI10. REFRIGERATION DIAGRAMS10.1 Heat Pump Models10.1.1 DNG 50/60/72/80 Cooling mode He

11-1TUBING CONNECTIONSRevision Y07-02Service Manual - DNG DCI11. TUBING CONNECTIONS TUBE (Inch)TORQUE (Nm)¼” ⅜” ½” ⅝” ¾”Flare Nuts15-18 40-45 60-

12-1CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCI12. CONTROL SYSTEM12.1 General Functions and Operating RulesThe DCI software is fully param

12-2CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCITarget frequency limits as a function of outdoor air temperature (OAT):OAT Range Cooling Mod

12-3CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCI12.1.5.2 Compressor starting control for DCI72/80 Step 1Whenever the compressor starts up,

12-4CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCICompressor Target FrequencyOFAN SpeedRoutinARoutinBRoutinCRoutinDFreq=0 OFF OFF OFF OFF10 ≤

12-5CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCI12.1.9.2 EEV Control for DCI72/72Z/80The target EEV value is the sum of open loop value (OL)

12-6CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCI12.3 Cool ModeNLOAD is calculated according to the difference between actual room temperatur

12-7CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCI12.6 Dry ModeAs long as room temperature is higher then the set point, indoor fan will work

1-3INTRODUCTIONRevision Y07-02Service Manual - DNG DCI1.7 Outdoor UnitThe DNG DCI INV outdoor units can be installed as floor or wall mounted units by

12-8CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCI12.7.2.2 Indoor Coil Overheating Protection For 72/80ICTICT Trend<-2 -2 -1,0,1 2 >2ICT

12-9CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCI12.7.3.2 Compressor Overheating Protection for DCI72/80CTTCTT TrendFast DecreasingDecreasing

12-10CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCI12.7.5.2 Heat Sink Overheating Protection For DCI72/80HSTDelta HST<-2 -2 -1,0,1 2 >2H

12-11CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCI► Deicing Operation ProcedureCOMPRVOFANEEVONHEATCOOLONOFFEEVDeicerOpenAnyT1 T2T3 T3T1120Th

12-12CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCI► Deicing Operation ProcedureCOMPRVOFANEEVONHEATCOOLONOFF EEVDeicerOpenAnyT1 T2T3

12-13CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCIANY0ONNLOADPUMPOFFONOPERLEDOFFOverflowWater LevelNormalBLINKNLOAD isforced to 08 min 8 minO

12-14CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCI12.10 On Unit Controls and Indicators12.10.1 Indoor Unit controller Controls and Indicati

12-15CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCI12.11 Test Mode12.11.1 Entering Test ModeSystem can enter Test mode in two ways:Automatical

12-16CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCIModel dependent parameters - DNGUnitA(DNG50)B(DNG60)C(DNG72)D(DNG80)Cap .Group 3344NomLoad

12-17CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCIModel dependent parameters - PXDUnitA(PXD50)B(PXD60)C(PXD72)D(PXD80)Cap .Group 3 344NomLoa

1-4INTRODUCTIONRevision Y07-02 Service Manual - DNG DCI1.11 Matching Table1.11.1 R410AOUTDOOR UNITSINDOOR UNITSMODELREFRIGER.DNG 50 DCI DNG 60 DCI

12-18CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCI12.12.2 Outdoor Units SW Parameters:Model dependent parameters for DCI50/60# Name Single D

12-19CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCIModel dependent parameters for DCI72ZNo. NameSingleDCI-72Z1 MinFreqC 152 MaxFreqC 703 MinFr

12-20CONTROL SYSTEMRevision Y07-02Service Manual - DNG DCIModel dependent parameters for DCI72/80Compressor Parameters ValueMinOFFTime 3MinOnTime 3Ma

13-1TROUBLESHOOTINGRevision Y07-02Service Manual - DNG DCI 13. TROUBLESHOOTING 13.1 Troubleshooting for DCI50/60/72ZWARNING!!!When Power Up – the who

13-2TROUBLESHOOTING Revision Y07-02 Service Manual - DNG DCI No Symptom Probable Cause Corrective Action 9Unit works in wrong mode (cool instead of

13-3TROUBLESHOOTINGRevision Y07-02Service Manual - DNG DCI 13.1.3 Judgment by Indoor/Outdoor Unit DiagnosticsEnter diagnostics mode - press for five s

13-4TROUBLESHOOTING Revision Y07-02 Service Manual - DNG DCI 13.1.4.1 Indoor Unit Diagnostics and Corrective ActionsNo. Fault Probable Cause Correcti

13-5TROUBLESHOOTINGRevision Y07-02Service Manual - DNG DCI No. Fault Probable Cause Corrective Action14The outdoor fan does not function correctly.Che

13-6TROUBLESHOOTING Revision Y07-02 Service Manual - DNG DCI No. Fault Probable Cause Corrective Action20No cooling or heating takes place, indoor and

13-7TROUBLESHOOTINGRevision Y07-02Service Manual - DNG DCI 13.1.5 Outdoor Unit DiagnositsNo Problem 5 4 3 2 11 OCT is disconnected 0 0 0 0 12 OCT is s

2-1PRODUCT DATA SHEETRevision Y07-02Service Manual - DNG DCI2. PRODUCT DATA SHEET2.1 DNG50 DCI Model Indoor Unit DNG 50 DCIModel Outdoor Unit DCI 50

13-8TROUBLESHOOTING Revision Y07-02 Service Manual - DNG DCI 13.1.6 Judgment by MegaToolMegaTool is a special tool to monitor the system states. Using

13-9TROUBLESHOOTINGRevision Y07-02Service Manual - DNG DCI 13.1.8 Precaution, Advise and Notice Items13.1.8.1 High voltage in Outdoor unit controlle

13-10TROUBLESHOOTING Revision Y07-02 Service Manual - DNG DCI 13.2 Troubleshooting for DCI72/80WARNING!!!When Power Up – the whole outdoor unit contr

13-11TROUBLESHOOTINGRevision Y07-02Service Manual - DNG DCI No Symptom Probable Cause Corrective Action 7Outdoor unit display board and leds are off

13-12TROUBLESHOOTING Revision Y07-02 Service Manual - DNG DCI No Symptom Probable Cause Corrective Action 21Other home appliances operation is fault

13-13TROUBLESHOOTINGRevision Y07-02Service Manual - DNG DCI No Problem 543211OCT bad 000012CTT bad 000103HST bad 000114OAT bad 001005OMT bad 001016RGT

13-14TROUBLESHOOTING Revision Y07-02 Service Manual - DNG DCI 13.2.3.2 Outdoor fault corrective actionsNo Fault Name Probable Cause Corrective Actio

13-15TROUBLESHOOTINGRevision Y07-02Service Manual - DNG DCI No Fault Name Probable Cause Corrective Action18 No communication A No signals in line A

13-16TROUBLESHOOTING Revision Y07-02 Service Manual - DNG DCI 13.2.4 Fault Code for Indoor unitPressing Mode button for long will activate diagnostic

13-17TROUBLESHOOTINGRevision Y07-02Service Manual - DNG DCI 13.2.4.1 Indoor unit diagnostics and corrective actionsNo.Fault Probable Cause Corrective

2-2PRODUCT DATA SHEETRevision Y07-02 Service Manual - DNG DCI2.2 DNG60 DCI Model Indoor Unit DNG 60 DCIModel Outdoor Unit DCI 60 R410AInstallation Met

13-18TROUBLESHOOTING Revision Y07-02 Service Manual - DNG DCI 13.2.5.4 Checking the Outdoor Fan MotorCheck FAN-Power and FAN-Halls connections - Repa

13-19TROUBLESHOOTINGRevision Y07-02Service Manual - DNG DCI 13.2.5.10 Checking for electromagnetic interferance (EMC problems)EMC troubles to the A/C

13-20TROUBLESHOOTING Revision Y07-02 Service Manual - DNG DCI 13.2.6.3 Advise:Open the Outdoor unit controller cover only after one minute from power