Electra DELTA 25 Service Manual Download

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1-3

INTRODUCTION

Revision Y05-01

Service Manual - Delta DCI

1.7 Tubing

Connections

Flare type interconnecting tubing to be produced on site.
For further details please refer to the Installation Manual, Appendix A

1.8 Inbox

Documentation

Each unit is supplied with its own installation and operation manuals,

1.9 Matching

Table

OUTDOOR UNITS

INDOOR UNITS

MODEL

REFR”

Delta 25

Delta 35

DCR 25

R410A

√

DCR 35

R410A

√

Summary of Contents for DELTA 25

Page 1: ...Service Manual DC Inverter Delta Series REFRIGERANT R410A HEAT PUMP MARCH 2005 Indoor Units Outdoor Units Delta 25 DCR 25 Delta 35 DCR 35...

Page 2: ...original and changed pages are Original 0 15 March 2005 Total number of pages in this publication is 54 consisting of the following Page No Revision No Page No Revision No Page No Revision No Title 0...

Page 3: ...ING CONDITIONS 3 1 4 OUTLINE DIMENSIONS 4 1 5 PERFORMANCE DATA PRESSURE CURVES 5 1 6 SOUND LEVEL CHARACTERISTICS 6 1 7 ELECTRICAL DATA 7 1 8 WIRING DIAGRAMS 8 1 9 REFRIGERATION DIAGRAMS 9 1 10 TUBING...

Page 4: ...d crystal display Indoor large diameter cross ow fan allowing low noise level operation Bended indoor coil with treated aluminum ns and coating for improved ef ciency High COP Pre Charged units up to...

Page 5: ...c lter optional Active carbon lter optional 1 5 Control The microprocessor indoor controller and an infrared remote control supplied as standard provide complete operating function and programming For...

Page 6: ...cting tubing to be produced on site For further details please refer to the Installation Manual Appendix A 1 8 Inbox Documentation Each unit is supplied with its own installation and operation manuals...

Page 7: ...ight kg 10 Units per pallet units 36 units per pallet Stacking height units 9 levels OUTDOOR Refrigerant control EEV Compressor type model Rotary Panasonic 5RS092XDJ01 Fan type quantity Propeller dire...

Page 8: ...nits per pallet units 36 units per pallet Stacking height units 9 levels OUTDOOR Refrigerant control EEV Compressor type model Rotary Panasonic 5RS102XAB Fan type quantity Propeller direct x 1 Fan spe...

Page 9: ...ucted units Cooling Indoor 27o C DB 19o C WB Outdoor 35 o C DB Heating Indoor 20o C DB Outdoor 7o C DB 6o C WB 3 1 Operating Limits 3 1 1 R410A Indoor Outdoor Cooling Upper limit 32o C DB 23o C WB 46o...

Page 10: ...4 1 OUTLINE DIMENSIONS Revision Y05 01 Service Manual Delta DCI 4 OUTLINE DIMENSIONS 4 1 Indoor Unit Delta 25 DCI 4 2 Indoor Unit Delta 35 DCI...

Page 11: ...4 2 OUTLINE DIMENSIONS Revision Y05 01 Service Manual Delta DCI 4 3 Outdoor Unit DCR 25 35 DCI AI R O U TLET AI R I N TAKE...

Page 12: ...1 0 62 30 TC 2 30 2 46 2 62 2 77 2 93 SC 1 63 1 67 1 70 1 76 1 77 PI 0 64 0 65 0 66 0 67 0 68 35 TC 2 18 2 34 2 50 2 66 2 82 SC 1 59 1 63 1 66 1 69 1 73 PI 0 71 0 72 0 73 0 74 0 75 40 TC 2 07 2 23 2 3...

Page 13: ...77 1 2 TC 2 21 2 09 1 96 PI 0 71 0 76 0 81 2 1 TC 2 26 2 14 2 01 PI 0 73 0 78 0 83 7 6 TC 32 92 2 80 2 68 PI 0 77 0 82 0 87 10 9 TC 3 09 2 96 2 84 PI 0 82 0 87 0 92 15 12 TC 3 25 3 12 3 00 PI 0 86 0...

Page 14: ...6 3 88 4 10 SC 2 48 2 53 2 58 2 63 2 68 PI 0 89 0 90 0 92 0 93 0 95 35 TC 3 06 3 28 3 50 3 72 3 94 SC 2 42 2 47 2 52 2 57 2 62 PI 0 98 0 99 1 01 1 03 1 04 40 Protection Range TC 2 90 3 12 3 34 3 56 3...

Page 15: ...0 95 1 2 TC 2 84 2 68 2 52 PI 0 87 0 93 0 99 2 1 TC 2 91 2 75 2 59 PI 0 90 0 96 1 02 7 6 TC 3 76 3 60 3 44 PI 0 95 1 01 1 07 10 9 TC 3 97 3 81 3 65 PI 1 01 1 07 1 13 15 12 TC 4 17 4 01 3 85 PI 1 06 1...

Page 16: ...ty Correction Factor Due to Tnbing Length 5 3 1 Delta 25 DCI Cooling 5 3 2 Heating 0 90 0 91 0 92 0 93 0 94 0 95 0 96 0 97 0 98 0 99 1 00 1 01 3 5 7 9 11 13 15 Tubing Length m Capacity Ratio 0 84 0 86...

Page 17: ...05 01 Service Manual Delta DCI 5 3 3 Delta 35 DCI Cooling 5 3 4 Heating 0 94 0 95 0 96 0 97 0 98 0 99 1 00 1 01 3 5 7 9 11 13 15 Tubing Length m Capacity Ratio 0 97 0 98 0 98 0 99 0 99 1 00 1 00 1 01...

Page 18: ...00 800 900 1000 1100 10 15 20 25 30 35 40 45 Outdoor DB Temperature C Suction Pressure kPa 22 15 DB WB 24 17 DB WB 27 19 DB WB 29 21 DB WB 32 23 DB WB Discharge Pressure VS Outdoor Temp 1000 1250 1500...

Page 19: ...essure VS Outdoor Temp 300 400 500 600 700 800 900 1000 15 10 5 0 5 10 15 Outdoor WB Temperature C Suction Pressure kPa 15 DB 20 DB 25 DB Discharge Pressure VS Outdoor Temp 1500 1750 2000 2250 2500 27...

Page 20: ...1000 1100 1200 10 15 20 25 30 35 40 45 Outdoor DB Temperature C Suction Pressure kPa 22 15 DB WB 24 17 DB WB 27 19 DB WB 29 21 DB WB 32 23 DB WB Discharge Pressure VS Outdoor Temp 1000 1250 1500 1750...

Page 21: ...essure VS Outdoor Temp 300 400 500 600 700 800 900 1000 15 10 5 0 5 10 15 Outdoor WB Temperature C Suction Pressure kPa 15 DB 20 DB 25 DB Discharge Pressure VS Outdoor Temp 1500 1750 2000 2250 2500 27...

Page 22: ...e Level Spectrum Measured as Figure 1 Delta 25 Delta 35 BAND CENTER FREQUENCIES Hz APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 70 NC 60 NC 50 NC 40 NC 30 NC 20 OCTAVE BAND SOUND PRESSURE...

Page 23: ...ND SOUND PRESSURE LEVEL dB re 0 002 MICRO BAR BAND CENTER FREQUENCIES Hz APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 70 NC 60 NC 50 NC 40 NC 30 NC 20 OCTAVE BAND SOUND PRESSURE LEVEL dB r...

Page 24: ...ply To indoor To indoor 1PH 220 240V 50Hz 1PH 220 240V 50Hz Max Current A 6 3 7 5 Circuit Breaker A 12 15 Power Supply Wiring No X Cross Section mm2 3x1 0 mm2 3x1 5 mm2 Interconnecting Cable RC Model...

Page 25: ...rown Red C N L Jumper Flash 4 3 2 JP9 1 JP1 6 5 3 1 2 4 P10 P1 P8 P22 To metal sheet 1 2 JUMPER J1 J2 L O F AN OFAN 1 2 R ed OUTDOOR UNIT CIRCUIT DIAGRAM Reverse COMP R ed B lack B row n W V U 1 2 B l...

Page 26: ...9 1 REFRIGERATION DIAGRAMS Revision Y05 01 Service Manual Delta DCI 9 REFRIGERATION DIAGRAMS 9 1 Heat Pump Models 9 1 1 Delta 25 35 DCR 25 35 DCI Cooling Mode EEV EEV...

Page 27: ...3 11 13 11 13 1 Valve Protection Cap end 2 Refrigerant Valve Port use Allen wrench to open close 3 Valve Protection Cap 4 Refrigerant Valve 5 Service Port Cap 6 Flare Nut 7 Unit Back Side 8 Copper Tub...

Page 28: ...by a parameter called NLOAD NLOAD is an integer number with values between 0 and 127 and it represents the heat or cool load felt by the indoor unit 11 1 2 Compressor Frequency Control NLOAD setting T...

Page 29: ...for each model 5 speeds for cool dry fan modes and 5 speeds for heat mode When user sets the indoor fan speed to a xed speed Low Medium High unit will operate constantly at set speed When Auto Fan is...

Page 30: ...wFreq Freq OFMedFreq High Low Low Low OFMedFreq Freq High Low Low High Notes When OAT is faulty or disabled OFAN will follow Normal cases rules left column 1 OFLowFreq OFLowFreqC in cool mode and OFLo...

Page 31: ...1 2 Fan Mode In high medium low indoor fan user setting unit will operate fan in selected speed In AutoFan user setting fan speed will be adjusted automatically according to the difference between act...

Page 32: ...mpressor will work between 0 and MaxNLOADIF1C Hz When the room temperature is lower than the set point compressor will be switched OFF and indoor fan will cycle 3 minutes OFF 1 minute ON 11 7 Protecti...

Page 33: ...SR SR D1 D2 D2 47 ICT 49 SR SR SR D1 D2 45 ICT 47 Norm Norm SR SR D1 43 ICT 45 Norm Norm Norm SR SR ICT 43 Normal 11 7 3 Compressor over Heating Protection Compressor temperature can be in one of 5 c...

Page 34: ...OCT is Invalid AND TLD DI Case 4 Unit is just switched to STBY AND OCT OAT 8 Case 5 NLOAD 0 AND OCT OAT 8 OCT Outdoor Coil Temperature OAT Outdoor Air Temperature TLD Time from Last Deicing DI Deicing...

Page 35: ...Revision Y05 01 Service Manual Delta DCI Deicing Protection Procedure T1 60 seconds T2 36 seconds T3 6 seconds COMP RV OFAN EEV ON HEAT COOL ON OFF EEVDeicerOpen Any T1 T2 T3 T3 T1 12 0 Threshold max...

Page 36: ...ows to start stop and operate in Cooling or Heating in pre set temperature according to the following table Forced operation Mode Pre set Temperature Cooling 200 C Heating 280 C 11 9 On Unit Controls...

Page 37: ...uring Timer and Sleep operation FILTER INDICATOR Lights up when Air Filter needs to be cleaned MODE RESET BUTTON As long as the lter Led is off the Mode Reset button functions as Mode switch Once lter...

Page 38: ...iagnostics mode de nitions when either fault or protection occurs FAULT LED Blinks according to diagnostics mode de nitions when either fault or protection occurs 11 11 Jumper Settings 11 11 1 Indoor...

Page 39: ...ON PIN7 PIN8 ON PIN5 PIN6 OFF OFF L ON PIN7 PIN8 ON PIN5 PIN6 OFF ON PIN1 PIN2 M ON PIN7 PIN8 ON PIN5 PIN6 ON PIN3 PIN4 OFF N ON PIN7 PIN8 ON PIN5 PIN6 ON PIN3 PIN4 ON PIN1 PIN2 O 11 12 Test Mode 11 1...

Page 40: ...T to Hz Down when ICT is stable 0 ICTDef6 ICT to stop compressor 2 Parameters for indoor coil over heating protection ICTOH1 ICT to go back to normal 45 ICTOH2 ICT to stop rise when ICT increase 48 IC...

Page 41: ...5 45 Step2Freq 55 55 Step3Freq 65 65 Frequency limits as a function of outdoor air temperature MaxFreqAsOATC 50 60 MaxFreqAsOAT1H 58 60 MaxFreqAsOAT2H 50 50 Compressor Over Heating Protection CTTOH1 9...

Page 42: ...to remote control message but Operate indicator Green LED does not light up Problem with display PCB Replace display PCB If still not OK replace controller Unit in heat mode and coil is still not war...

Page 43: ...essor motor is generating noise and no suction occurs Phase order to compressor is wrong Check compressor phase order 14 Water leakage from indoor unit Indoor unit drainage tube is blocked Check and o...

Page 44: ...operation mode The last fault code will be displayed even if the system has recovered from that fault The last fault will be deleted from the EEPROM after the system has exit diagnostics mode In diagn...

Page 45: ...e required for unit operation 8 Bad Communication Communication quality is low reliabilityCheck Indoor to Outdoor wiring and grounding 9 Using EEPROM data No problem System is using EEPRRRROM paramete...

Page 46: ...rounding 8 Compressor Lock Switch unit to STBY and restart 9 Bad Communication Communication quality is low reliability Check Indoor to Outdoor wiring and grounding 12 4 Judgment by MegaTool MegaTool...

Page 47: ...voltage is 220VAC 12 5 6 Checking the electrical expansion valve EEV The EEV has two parts drive part and valve The drive part is a step motor it is ringed on the valve Check the drive voltage 12VDC...

Page 48: ...13 1 EXPLODED VIEWS AND SPARE PARTS LISTS Revision Y05 01 Service Manual Delta DCI 13 EXPLODED VIEWS AND SPARE PARTS LISTS 13 1 Indoor Unit Delta 25 35 DCI...

Page 49: ...SSY FAN 1 11 4523523 FAN ASSY PLASTIC 1 12 452784400 IOD 7 9 AIR OUTLET ASSY NO WIRE 1 13 4523693 DRAIN HOSE 1 14 4526659 REAR PANEL ASSY 1 15 453027400 MOUNT BRACKET ASSY ALFA 7 9 1 16 4526000 TUBE C...

Page 50: ...N 1 11 4527111 FAN ASSY PLASTIC 1 12 452784401 IOD 12 AIR OUTLET ASSY NO WIRE 1 13 4523693 DRAIN HOSE 1 14 4527186 IOD 12 REAR PANEL ASSY 1 15 453027500 MOUNT BRACKET ASSY ALFA 12 1 16 4527512 TUBE CL...

Page 51: ...13 4 EXPLODED VIEWS AND SPARE PARTS LISTS Revision Y05 01 Service Manual Delta DCI 13 4 Outdoor Unit DCR 25 35 DCI...

Page 52: ...VALVE SOLDERING ASSY FOR DCR 9 1 13 453026600 ELECTRONIC EXPANSION VALVE ZDPF L 1 5C 01 1 14 4526216 EEV COIL QA L 12 MD 02 1 15 453047000 LOW PRESSURE STOP VALVE FOR R410A 1 16 4516857 BIG SIDE COVER...

Page 53: ...SOLDERING ASSY FOR DCR 35 1 13 453026600 ELECTRONIC EXPANSION VALVE ZDPF L 1 5C 01 1 14 4526216 EEV COIL QA L 12 MD 02 1 15 453047000 LOW PRESSURE STOP VALVE FOR R410A 1 16 4516857 BIG SIDE COVER 1 1...

Page 54: ...14 1 APPENDIX A Revision Y05 01 Service Manual Delta DCI APPENDIX A INSTALLATION AND OPERATION MANUAL INSTALLATION OPERATING MANUAL DELTA 25 35 DCI...

Page 55: ...SPLIT MURAL ESPA OL Y ESPA OL Y CONDIZIONATORE D ARIA APARETE SPLIT ITALIANO P R O G R A M M I N G A N D O P E R A T I N G M A N U A L M A N U E L D U T I L I S AT I O N D E P R O G R A M M AT I O N...

Page 56: ...ENGLISH AIR CONDITIONER SPLIT WALL MOUNTED PROGRAMMING AND OPERATING...

Page 57: ...RATION FUNCTIONS AND FEATURES ON UNIT INDICATORS AND CONTROLS PROTECTION MODES CARE AND MAINTENANCE OPERATING TIPS PRECAUTIONS BEFORE CALLING FOR SERVICE 1 2 3 5 6 7 8 9 CONTENTS PLEASE READ THESE INS...

Page 58: ...o protect against electrical shock Installation of the air conditioner must be performed by an experienced air conditioning installer observing good refrigeration practice Electrical connections and p...

Page 59: ...icator and on unit control 7 Power cord 8 Outdoor unit air intake 9 Power cable 10 Condensate tube 11 Liquid line 12 Suction line 13 Outdoor unit air outlet 14 Remote control 2 SYSTEM DESCRIPTION 14 1...

Page 60: ...feature prevents uncomfortable cold air drafts Use of AUTO FAN is therefore recommended when the air conditioner is in HEATING mode Switches the temperature sensing point to the place where the remot...

Page 61: ...sent by the remote control has been accepted and stored in the unit s memory The compressor is protected by a three minute delayed restart 4 AUTO FLAP VERTICAL AIR SWING ROOM TEMPERATURE BUZZER 3 MIN...

Page 62: ...ort pressing turns off the filter indicator and reset the filter function after the cleaned filter has been reinstalled SIGNAL RECEIVER Receive signals from the remote control FILTER INDICATOR Lights...

Page 63: ...modes which enables you to use it virtually at any time and in any season regardless of the outdoor temperature Some of the protection modes are listed below Mode Cooling and Dry Heating Operation co...

Page 64: ...ace Reset button B to turn off indicator D CLEANING THE ELECTROSTATIC FILTER PURIFICATION FILTER REPLACEMENT The air purifying filter should be removed from the unit and replaced once a year show as f...

Page 65: ...m time to time In a power failure the microprocessor memory is retained When restarted operation will be resumed in the last mode of operation However if the timer was used the unit will be turned off...

Page 66: ...e air conditioner Do not insert any objects in the air outlet of the indoor or outdoor units Do not splash water on the air conditioner IF NOISE IS HEARD There may be hissing sound during operation or...

Page 67: ...s not operate Stand by indicator does not light up Unit does not operate Stand by indicator lights Unit does not respond properly to remote control command Air does not blow out from indoor unit COOLI...

Page 68: ...P R O G R A M M I N G A N D O P E R AT I N G M A N U A L REMOTE CONTROL ENGLISH...

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