Electra ONG 25 DCI INV Service Manual Download

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Service Manual

WNG LED/LCD DCI Inverter series

REFRIGERANT

R410A

HEAT PUMP

DECEMBER 2004

Indoor Units

Outdoor Units

WNG 25 DCI INV

ONG 25 DCI INV

WNG 35 DCI INV

ONG 35 DCI INV

Summary of Contents for ONG 25 DCI INV

Page 1: ...Service Manual WNG LED LCD DCI Inverter series REFRIGERANT R410A HEAT PUMP DECEMBER 2004 Indoor Units Outdoor Units WNG 25 DCI INV ONG 25 DCI INV WNG 35 DCI INV ONG 35 DCI INV...

Page 2: ...G QRQ HIIHFWHG SDJHV GLYLGHG E FKDSWHUV DWHV RI LVVXH IRU RULJLQDO DQG FKDQJHG SDJHV DUH 2ULJLQDO XJXVW 7RWDO QXPEHU RI SDJHV LQ WKLV SXEOLFDWLRQ LV FRQVLVWLQJ RI WKH IROORZLQJ 3DJH 1R 5HYLVLRQ 1R 3DJ...

Page 3: ...SHEET 2 1 3 RATING CONDITIONS 3 1 4 OUTLINE DIMENSIONS 4 1 5 PERFORMANCE DATA 5 1 6 PRESSURE CURVES 6 1 7 ELECTRICAL DATA 7 1 8 WIRING DIAGRAMS 8 1 9 REFRIGERATION DIAGRAMS 9 1 10 TUBING CONNECTIONS...

Page 4: ...detector or power shedding functions configurable x Base heater connection x Cooling operation at outdoor temperature down to 10 C x Heating operation at outdoor temperature down to 15 C x Supports I...

Page 5: ...n The WNG DCI INV series presents several types of air filters x Easily accessible and re usable pre filters mesh x Pre charged electrostatic filter disposable x Active carbon filter disposable x ESF...

Page 6: ...35 DCI Display 3 LED s Base Heater Optional Outdoor Fan Variable Speed DC Inverter M2L cable Port No 1 8 Tubing Connections Flare type interconnecting tubing to be produced on site For further detail...

Page 7: ...5 DCI WNG35 DCI K25 DCI K35 DCI ONG 25 DCI R410A ONG 35 DCI R410A The above table lists outdoor units and WNG indoor units which can be matched together In addition the listed outdoor units can be mat...

Page 8: ...in 16 5 8 Dimensions W D H Weight kg Packing dimensions W D H mm Unit stacking units 7 Refrigerant control Electronic Expansion Valve Compressor type Single Rotary DC Inverter Compressor Model Starter...

Page 9: ...mensions W D H Weight kg Packing dimensions W D H mm Unit stacking units 7 Refrigerant control Electronical Expansion Valve Compressor type Single Rotary DC Inverter Compressor Model Starter type Prot...

Page 10: ...nits and EN 14511 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 Indoor Outdoor Cooling Upper limit 32o C DB 23o C WB 46o C DB...

Page 11: ...TUBING WALL OPENING FOR REAR ROUTING TUBING WALL OPENING FOR REAR LEFT ROUTING MOUNTING TEMPLATE TO BE USED FOR LOCATION OF INDOOR UNIT ON THE WALL MOUTING PLATE OUTLINE INDOOR UNIT OUTLINE CEELING 7...

Page 12: ...30 2 46 2 62 2 77 2 93 SC 1 60 1 63 1 67 1 70 1 73 30 PI 0 52 0 53 0 54 0 55 0 56 TC 2 18 2 34 2 50 2 66 2 82 SC 1 56 1 59 1 63 1 66 1 69 35 PI 0 58 0 59 0 60 0 60 0 61 TC 2 07 2 23 2 38 2 54 2 70 SC...

Page 13: ...8 2 53 2 38 1 2 PI 0 70 0 75 0 80 TC 2 75 2 59 2 44 2 1 PI 0 72 0 77 0 82 TC 3 55 3 40 3 25 7 6 PI 0 76 0 81 0 86 TC 3 75 3 60 3 44 10 9 PI 0 81 0 86 0 90 TC 3 94 3 79 3 64 15 12 PI 0 85 0 90 0 95 15...

Page 14: ...Length 5 2 1 Cooling 0 91 0 92 0 93 0 94 0 95 0 96 0 97 0 98 0 99 1 00 1 01 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Tubing Length m Capacity Ratio 5 2 2 Heating 0 90 0 92 0 94 0 96 0 98 1 00 1...

Page 15: ...66 3 88 4 11 SC 2 34 2 39 2 44 2 49 2 54 30 PI 0 87 0 88 0 90 0 91 0 93 TC 3 06 3 28 3 50 3 72 3 94 SC 2 28 2 33 2 38 2 43 2 48 35 PI 0 96 0 98 0 99 1 00 1 02 TC 2 89 3 12 3 34 3 56 3 78 SC 2 22 2 27...

Page 16: ...3 01 1 2 PI 0 97 1 04 1 11 TC 3 47 3 28 3 09 2 1 PI 1 00 1 07 1 14 TC 4 49 4 30 4 11 7 6 PI 1 06 1 13 1 19 TC 4 74 4 55 4 36 10 9 PI 1 12 1 19 1 26 TC 4 99 4 80 4 60 15 12 PI 1 18 1 25 1 32 15 24 TC...

Page 17: ...bing Length 5 4 1 Cooling 0 91 0 92 0 93 0 94 0 95 0 96 0 97 0 98 0 99 1 00 1 01 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Tubing Length m Capacity Ratio 5 4 2 Heating 0 90 0 92 0 94 0 96 0 98 1...

Page 18: ...uction Pressure VS Outdoor Temp Indoor DB WB Temp Outdoor Temp C DB 1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 10 15 20 25 30 35 40 45 Discharge Pressure kPa 22 15 24 17 27 19 29...

Page 19: ...1000 1100 1200 1300 15 10 5 0 5 10 15 Suction Pressure kPa 15 20 25 Suction Pressure VS Outdoor Temp Outdoor Temp C WB Indoor DB Temp 1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 15 10 5 0 5...

Page 20: ...5 Suction Pressure kPa 22 15 24 17 27 19 29 21 32 23 Suction Pressure VS Outdoor Temp Indoor DB WB Temp Outdoor Temp C DB 1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 10 15 20 25 3...

Page 21: ...1000 1100 1200 1300 15 10 5 0 5 10 15 Suction Pressure kPa 15 20 25 Suction Pressure VS Outdoor Temp Indoor DB Temp Outdoor Temp C WB 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 15 10 5 0 5...

Page 22: ...arting Current b 10 A Circuit breaker 16 A Power supply wiring no x cross section 3 X 1 5 mm2 Interconnecting cable no x cross section 4 X 1 5 mm2 a Inrush current is the current when power is up char...

Page 23: ...3 P1 2 P12 red 1 P8 1 2 ESF power in ESF power out P6 3 1 2 1 4 5 ESF step motor M1 2 PH 12 P9 Display Dry contact clock Ionzer Jumper P17 megatool SUCT EARTH EMI filter PCB EARTH NCOM COM N F Outdoor...

Page 24: ...CI 9 1 1 Cooling Mode 9 1 2 Heating Mode Strainer Outdoor coil Sensor Reverse Strainer valve OUTDOOR UNIT INDOOR UNIT Flared connection Valves Indoor coil Sensor EEV Strainer Outdoor coil Sensor Rever...

Page 25: ...3ERVICE 0ORT AP LARE UT 5NIT ACK 3IDE OPPER 4UBE 7HEN THE OUTDOOR UNIT IS INSTALLED ABOVE THE INDOOR UNIT AN OIL TRAP IS REQUIRED EVERY M ALONG THE SUCTION LINE AT THE LOWEST POINT OF THE RISER NCASE...

Page 26: ...d it represents the heat or cool load felt by the indoor unit 11 1 2 Compressor Frequency Control 11 1 2 1 NLOAD setting The NLOAD setting is done by the indoor unit controller based on a PI control s...

Page 27: ...7 Indoor Fan Control 10 Indoor fan speeds are determined 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 fixed speed Low Medium High...

Page 28: ...req Medium Low Very Low Low OFMedFreq CF High Low Low Medium When compressor is switched to OFF and the heat sink temperature is above 55 degrees the outdoor fan will remain ON in low speed for up to...

Page 29: ...speed In AutoFan user setting fan speed will be ad8usted automatically according to the calculated NLOAD 11 4 Heat Mode NLOAD is calculated according to the difference between actual room temperature...

Page 30: ...een 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 Protections There are 5 protect...

Page 31: ...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 control zones 4 in protection and 1 normal according to the following...

Page 32: ...CT is Invalid AND TLD DI Case 4 Unit is ust switched to STBY AND OCT j 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 33: ...n Any T1 T2 T3 T3 T1 12 0 Threshold max 12 minutes DT OCT T1 T2 36 seconds T3 nds 6 seco 11 8 Condensate Water Over Flow Protection Each of the pins P1 P2 P3 can have two options 1 When it is shorted...

Page 34: ...ANY 0 ON NLOAD PUMP OFF ON OPER LED OFF Overflow Water Level Normal BLINK NLOAD is forced to 0 8 min 8 min Overflow when unit is ON Overflow when unit is OFF 8 min 11 9 Indoor Unit Dry Contact Indoor...

Page 35: ...t a R C infrared signal has been received and stored Blinks continuously during protections according to the relevant spec section TIMER INDICATOR Lights up during Timer and Sleep operation FILTER IND...

Page 36: ...2 OFF 2 OFF 2 OFF 2 OFF 2 SPT 1 ON 2 ON 2 ON 2 ON 2 ON 2 SPT 1 SPT 1 SPT 1 SPT 1 Low OFF Med OFF High OFF Turbo OFF Auto OFF User setting IFAN speed User setting IFAN speed User setting IFAN speed Use...

Page 37: ...h one of the seven indicators indicates the following SPT 18 20 22 24 26 28 30 o c The odd number temperatures are indicated by turning on the two adcent indicators FAN SPEED BUTTON Press this button...

Page 38: ...Family selection Jumper J3 J4 and J5 Family J5 J4 J 3 Reserved Reserved Reserved Wall Mounted WNG FLO Floor Ceiling PXD Reserved Ducted LS Cassette K 0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 Mo...

Page 39: ...ON PIN7 PIN8 OFF OFF OFF H ON PIN7 PIN8 OFF OFF ON PIN1 PIN2 I ON PIN7 PIN8 OFF ON PIN3 PIN4 OFF J ON PIN7 PIN8 OFF ON PIN3 PIN4 ON PIN1 PIN2 K ON PIN7 PIN8 ON PIN5 PIN6 OFF OFF L ON PIN7 PIN8 ON PIN...

Page 40: ...y low speed 30 ICTHSpeed ICT to start in increase speed from very low 32 ICTTSpeed ICT to enable Turbo fan speed 40 Model Depended Parameters Parameter name Wall Mounted Models DCI 25 DCI 35 NLOAD lim...

Page 41: ...eqAsOATC 50 50 64 62 MaxFreqAsOAT1H 65 75 85 85 MaxFreqAsOAT2H 60 60 60 60 Compressor Over Heating Protection CTTOH1 94 94 94 90 CTTOH2 98 98 98 95 CTTOH3 102 102 102 102 CTTOH4 105 105 105 105 Compre...

Page 42: ...check display and display wiring if OK replace display PCB If still not OK replace controller 3 Unit responds to remote control message but Operate indicator Green LED does not light up Problem with d...

Page 43: ...system problem Perform diagnostics See 12 3 below and follow the actions described 13 Compressor motor is generating noise and no suction occurs Phase order to compressor is wrong Check compressor ph...

Page 44: ...d from that fault The last fault will be deleted from the EEPROM after the system has exit diagnostics mode In diagnostics mode system fault status will be indicated by blinking of Heat d Cool LEDs Th...

Page 45: ...iring and grounding 4 No Encoder Indoor electronics or motor Checkmotorwiring ifok replace motor if still not ok replace Indoor controller 5 Outdoor Unit Fault Outdoor controller problem Switch to Out...

Page 46: ...TSUC is shorted when enabled 0 1 0 1 0 11 IPM Fault 0 1 0 1 1 12 Bad EEPROM 0 1 1 0 0 13 DC under voltage 0 1 1 0 1 14 DC over voltage 0 1 1 1 0 15 AC under voltage 0 1 1 1 1 16 IDU ODU Communication...

Page 47: ...e required for unit operation DC under over Voltage Electronics HW problem Check outdoor unit power supply voltage AC under Voltage Check outdoor unit power supply voltage Indoor Outdoor unit Communic...

Page 48: ...of the Indoor unit If the fuse is OK replace the Indoor unit controller If the fuse has blown replace the fuse and power up again Checking Power Input procedure for the Outdoor unit is the same as wit...

Page 49: ...o the controller when power is on 12 6 2 Charged Capacitors Three large capacity electrolytic capacitors are used in the Outdoor unit controller Therefore charging voltage 380VDC remains after power d...

Page 50: ...n 0 13 1 13 EXPLODED VIEW AND SPARE PART LIST 13 1 Outdoor Unit ONG 25 35 DCI 2 1 3 4 5 6 7 8 42 41 10 9 24 26 35 ONG3 9 12 DCI R410A ONG3 9 12 DCI R410A 40 38 37 33 34 27 28 32 11 12 13 14 15 16 18 1...

Page 51: ...6219 Fuse 65TS 15A 230 150 031 00 1 20 204107 Cable clip nylon 1 21 4519188 4 poles terminal block 1 22 433229 Value cover 1 23 4522509 4 Way valve coil 1 24 4526367 4 way valve welding Assy DCI25 1 4...

Page 52: ...EXPLODED VIEW Service Manual WNG DCI Revision 0 13 3 13 3 N WNG 25 35 DCI INDOOR UNIT LCD 5HYLVLRQ...

Page 53: ...er Flap 1 1 16 4518642 Vert Louver Link 1 1 17 4518640 Vert Louver A 2 1 4518641 Vert Louver B 10 1 18 4518643 Vert Louver Lock 1 1 1 4518644 Vert Louver Lock 2 1 1 4518645 Vert Louver Lock 3 1 1 19 4...

Page 54: ...EXPLODED VIEW Service Manual WNG DCI Revision 0 13 5 13 5 WNG 25 35 DCI INDOOR UNIT LED 5HYLVLRQ...

Page 55: ...3 4518646 Louver support 2 1 14 4518638 Upper flap 1 1 15 4518639 Lower flap 1 1 16 4518642 Vert louver link 1 1 17 4518640 Vert louver A 2 1 4518641 Vert louver B 10 1 18 4518643 Vert louver lock 1 1...

Page 56: ...EXPLODED VIEW Service Manual WNG DCI Revision 0 13 7 13 7 N WNG 25 35 DCI INDOOR UNIT LED 5HYLVLRQ...

Page 57: ...1 17 4518640 Vert Louver A 2 1 4518641 Vert Louver B 10 1 18 4518643 Vert Louver Lock 1 1 1 4518644 Vert Louver Lock 2 1 1 4518645 Vert Louver Lock 3 1 1 19 4518662 Bearing Assy 1 1 20 4518661 Cross...

Page 58: ...APPENDIX A Service Manual WNG DCI Revision 0 Appendix A APPENDIX A INSTALLATION AND OPERATION MANUAL 5HYLVLRQ...

Page 59: ...AUTO...

Page 60: ......

Page 61: ...rical wiring drainage and tubing connections 4 The appliance must be positioned so that the plug is accessible 5 Installation site should provide an easy passage to outdoors 6 The unit must be mounted...

Page 62: ...0 mm n mi 500 mm n mi 400 mm n mi 100 mm n mi Fig 5 1 Mounting pads 4 Fig 4 Fig 5 NO TE Distance between indoor and outdoor units should be 20m Height difference between indoor and outdoor units shoul...

Page 63: ...te on the wall in a horizontal position 2 Mark the position of the four mounting holes on the wall and drill four holes to accommodate the dowels 3 Mount the mounting plate on to the wall by the four...

Page 64: ...in fig 9 and fig 10 Fig 9 1 Indoor unit 2 Snap catches 3 Top hooks 4 Bottom hooks Fig 10 1 Mounting plate 2 Lower hook 1 A ttach the condensate drain hose to the corrugated hose in the rear groove of...

Page 65: ...ig 16 A OUTDOOR B INDOOR Fig 17 1 Indoor unit terminal 4 Power cable in the indoor side 2 Ground wire 5 Multiple wire cable 3 Indoor coil 6 Cable clamp 7 Outdoor unit wire terminal A OUTDOOR B INDOOR...

Page 66: ...ion tube large dia 4 Plugs 5 Flare nuts 6 Tubing between units 7 Suction tube 8 Liquid tube 9 OUTDOOR UNIT 10 Flare nuts 11 Suction valve larger 12 Liquid valve small EVACUATION OF THE REFRIGERATION T...

Page 67: ...ng with sealer 3 A ttach wiring and tubing to the wall with clamps where necessary 4 O perate the unit for no less than 5 minutes at heating or cooling mode 5 Explain filter removal cleaning and insta...

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Page 70: ...1 AUTO...

Page 71: ...2 9 10 11 12 13 14 15 AUTO 1 2 3 4 5 6 7 8 16 17 18...

Page 72: ...3...

Page 73: ...4...

Page 74: ...5 COOL ESF EN RESET HEAT MODE F A PWR ESP PWR...

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Page 76: ...7 AUTO AUTO...

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