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Electra LEX 25 DCI, Service Manual

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Electra LEX 25 DCI Service Manual Download Page 7

1-4

INTRODUCTION

Revision Y06-01

Service Manual - WNG/LEX DCI

1.11 Matching 

Table

1.11.1 R410A

OUTDOOR 

UNITS

INDOOR UNITS

MODEL

REFR”

WNG25 

DCI

WNG35

DCI

K25DCI

K35DCI

LEX

25DCI

LEX

35DCI

ONG25 

DCI

R410A

√

√

√

ONG35 

DCI

R410A

√

√

√

The above table lists outdoor units and WNG/LEX indoor units which can be matched together. In

addition the listed outdoor units can be matched with other types of indoor units such as
cassettes.

For further information please refer to the relevant Service Manual.

Summary of Contents for LEX 25 DCI

Page 1: ...Service Manual WNG LEX DCI Inverter Series REFRIGERANT R410A HEAT PUMP MARCH 2006 Indoor Units Outdoor Units WNG 25 DCI ONG 25 DCI WNG 35 DCI ONG 35 DCI LEX 25 DCI ONG 25 DCI LEX 35 DCI ONG 35 DCI...

Page 2: ...inal and changed pages are Original 0 March 2006 Total number of pages in this publication is 76 consisting of the following Page No Revision No Page No Revision No Page No Revision No Title 0 A 0 i 0...

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 1...

Page 4: ...tubing distance Networking system connectivity A dry contact for clock or power shedding functions con gurable Base heater connection Cooling operation at outdoor temperature down to 10 C Heating oper...

Page 5: ...l Indoor fan motor Variable speed PG Horizontal motorized louver YES Vertical motorized louver Optional Heating element NO M2L Cable port YES Dry contact Presence detector or jumper selected power she...

Page 6: ...lowing long life resistance All outdoor units are pre charged For further information please refer to the Product Data Sheet Chapter 2 ONG 25 DCI ONG 35 DCI Outdoor Unit Feature Feature ONG 25 35 DCI...

Page 7: ...I WNG35 DCI K25DCI K35DCI LEX 25DCI LEX 35DCI ONG25 DCI R410A ONG35 DCI R410A The above table lists outdoor units and WNG LEX indoor units which can be matched together In addition the listed outdoor...

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Page 9: ...VLRQV HLJKW NJ 3DFNLQJ GLPHQVLRQV PP 8QLW VWDFNLQJ XQLWV 5HIULJHUDQW FRQWURO OHFWURQLFDO SDQVLRQ 9DOYH RPSUHVVRU W SH 6LQJOH 5RWDU QYHUWHU RPSUHVVRU 0RGHO 6WDUWHU W SH 3URWHFWLRQ GHYLFH 2XWGRRU 6 FRQW...

Page 10: ...ax 20 Max height difference Stacking height 3 levels Package dimensions 945 395 655 Packaged weight 42 Units per pallet 9 Dimensions 795 290 610 Weight 38 Sound pressure level 3 60 50 61 51 Fan speeds...

Page 11: ...rrent Starting current 10 5 4 6 5 2 Circuit breaker rating 15 INDOOR Fan type quantity Crossflow x 1 Fan speeds Air flow 1 External static pressure Sound power level 2 Sound pressure level 3 1100 950...

Page 12: ...ducted 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 46...

Page 13: ...4 1 OUTLINE DIMENSIONS Revision Y06 01 Service Manual WNG LEX DCI 4 OUTLINE DIMENSIONS 4 1 Indoor Unit WNG 25 35 DCI 4 2 Indoor Unit LEX 25 35 DCI...

Page 14: ...4 2 OUTLINE DIMENSIONS Revision Y06 01 Service Manual WNG LEX DCI 4 3 Outdoor Unit ONG 25 35 DCI...

Page 15: ...49 0 50 TC 2 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...

Page 16: ...TC 2 68 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...

Page 17: ...Due to Tubing 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 9...

Page 18: ...3 22 3 44 3 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...

Page 19: ...TC 3 39 3 20 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...

Page 20: ...Due to TUbing 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 9...

Page 21: ...1300 1400 10 15 20 25 30 35 40 45 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...

Page 22: ...0 900 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...

Page 23: ...0 10 15 20 25 30 35 40 45 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...

Page 24: ...0 900 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...

Page 25: ...rush Current a 35A Starting Current b 10A Circuit Breaker 16A Power Supply wiring no x cross section 3 X 1 5 mm Interconnecting cable no x cross section 4 X 1 5 mm a Inrush current is the current when...

Page 26: ...egulator 2 1 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 CO...

Page 27: ...5 DCI LEX 25 35 DCI Cooling Mode 9 1 2 WNG 25 35 DCI LEX 25 35 DCI Heating Mode Strainer Outdoor coil Sensor Reverse Strainer valve OUTDOOR UNIT INDOOR UNIT Flared connection Valves Indoor coil Sensor...

Page 28: ...AP 2EFRIGERANT 6ALVE 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 POI...

Page 29: ...nd 127 and 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...

Page 30: ...utes 11 1 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 Me...

Page 31: ...CF OFMedFreq 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 f...

Page 32: ...selected 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 tem...

Page 33: ...ompressor 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 Protect...

Page 34: ...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 control zones 4 in protection and 1 normal according to the f...

Page 35: ...TLD 30 minutes Case 3 OCT 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...

Page 36: ...EVDeicerOpen Any T1 T2 T3 T3 T1 12 0 Threshold max 12 minutes DT OCT T 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 s...

Page 37: ...l Don t care 0 Overflow 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...

Page 38: ...ounce that 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 F...

Page 39: ...F SPT 1 OFF 2 OFF 2 OFF 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 Use...

Page 40: ...ATORS Each 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 thi...

Page 41: ...eat Set point 30 Room temperature 20 1 Outdoor temperature 7 1 Manually when entering diagnostics with the following settings Mode Cool Set point 16 Mode Heat Set point 30 11 12 2 Unit Operation in Te...

Page 42: ...ed Models DCI 25 DCI 35 NLOAD limits as a function of selected indoor fan speed MaxNLOADIF1C 40 40 MaxNLOADIF2C 53 53 MaxNLOADIF3C 120 120 MaxNLOADIF4C 127 127 MaxNLOADIF5C 127 127 Indoor Fan speeds I...

Page 43: ...xFreqAsOATC 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 Com...

Page 44: ...if batteries are OK 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 lig...

Page 45: ...igeration 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 comp...

Page 46: ...f the system has recovered 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 blinki...

Page 47: ...Outdoor wiring 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 Swit...

Page 48: ...0 0 1 10 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 Commu...

Page 49: ...meters are 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...

Page 50: ...ighted power down the system and check the fuse 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 p...

Page 51: ...else into 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 afte...

Page 52: ...13 1 EXPLODED VIEWS AND SPARE PARTS LISTS Revision Y06 01 Service Manual WNG LEX DCI 13 EXPLODED VIEWS AND SPARE PARTS LISTS 13 1 Outdoor Unit ONG 25 35 DCI...

Page 53: ...K P N 150 038 00 1 19 4526219 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 val...

Page 54: ...13 3 EXPLODED VIEWS AND SPARE PARTS LISTS Revision Y06 01 Service Manual WNG LEX DCI 13 3 Indoor Unit N WNG 25 32 LCD DCI...

Page 55: ...1 1 15 4526953 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 1 4518644 Vert Louver Lock 2 1 1 4518645 Vert Lou...

Page 56: ...13 5 EXPLODED VIEWS AND SPARE PARTS LISTS Revision Y06 01 Service Manual WNG LEX DCI 13 5 Indoor Unit WNG 25 35 LED DCI...

Page 57: ...om No 13 to No 19 13 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 V...

Page 58: ...13 7 EXPLODED VIEWS AND SPARE PARTS LISTS Revision Y06 01 Service Manual WNG LEX DCI 13 7 Indoor Unit WNG 25 35 LED DCI...

Page 59: ...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 4518662 Bearing Assy 1...

Page 60: ...13 9 EXPLODED VIEWS AND SPARE PARTS LISTS Revision Y06 01 Service Manual WNG LEX DCI 13 9 Outdoor Unit ONG 25 35 DCI new...

Page 61: ...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 4526393 4 way valve...

Page 62: ...13 11 EXPLODED VIEWS AND SPARE PARTS LISTS Revision Y06 01 Service Manual WNG LEX DCI 13 11 Indoor Unit LEX 25 35 DCI...

Page 63: ...function 1 17 4518650 Motor Cover 1 18 452969400 Step Motor A 1 452969500 Step Motor B 1 19 4521158R Power cord cable Euro 1 4520061R Power cord cable Israel 1 4520278R Power cord cable Without plug 1...

Page 64: ...evision Y06 01 Service Manual WNG LEX DCI APPENDIX A INSTALLATION AND OPERATION MANUAL INSTALLATION MANUAL LEX 25 35 DCI OPERATING MANUAL LEX 25 35 DCI INSTALLATION MANUAL WNG 25 35 DCI OPERATING MANU...

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