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Electra K 25 DCI INV Service Manual

K dci inverter series
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Service Manual

REFRIGERANT
R410A
K DCI Inverter series
Indoor Units
K 25 DCI INV
K 35 DCI INV
K 35S DCI INV
K 50 DCI INV
DECEMBER 2004
Outdoor Units
ONG 25 DCI INV
ONG 35 DCI INV
ONG 35S DCI INV
ONG 50 DCI INV
HEAT PUMP

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Summary of Contents for Electra K 25 DCI INV

  • Page 1: Service Manual

    Service Manual K DCI Inverter series Indoor Units Outdoor Units K 25 DCI INV ONG 25 DCI INV K 35 DCI INV ONG 35 DCI INV K 35S DCI INV ONG 35S DCI INV K 50 DCI INV ONG 50 DCI INV...
  • Page 2 LIST OF EFFECTIVE PAGES LIST OF EFFECTIVE PAGES Note: Changes in the pages are indicated by a “Revision#” in the footer of each effected page (when none indicates no changes in the relevant page). All pages in the following list represent effected/ non effected pages divided by chapters.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Table of Contents INTRODUCTION ....................1-1 PRODUCT DATA SHEET ..................2-1 RATING CONDITIONS ..................3-1 OUTLINE DIMENSIONS ..................4-1 PERFORMANCE DATA ..................5-1 PRESSURE CURVES ...................6-1 ELECTRICAL DATA ....................7-1 WIRING DIAGRAMS .....................8-1 REFRIGERATION DIAGRAMS ................9-1 10. TUBING CONNECTIONS ..................10-1 11. CONTROL SYSTEM .....................11-1 12.

  • Page 4: Introduction

    INTRODUCTION INTRODUCTION General The new K DCI INVERTERS split Cassette range comprise the following RC (heat pump) models: • K 25 DCI INV • K 35 DCI INV • K 35S DCI INV • K 50 DCI INV The New DCI K units can be easly fitted to resedential and comercial aplications featuring esthetic design, compact dimensions, and low noise operation.
  • Page 5 INTRODUCTION Filtration The WNG DCI INV series presents several types of air filters: • Easily accessible, and re-usable pre-filters (mesh) • Pre-charged electrostatic filter (disposable) • Active carbon filter (disposable) Control The microprocessor indoor and outdoor controllers, and an infrared remote control, supplied as standard, provide complete operating function and programming.
  • Page 6 INTRODUCTION Matching Table 1.9.1 R410A INDOOR UNITS OUTDOOR UNITS MODEL REF” WNG25DCI WNG35 DCI K25 DCI K35 DCI K35S DCI K50 DCI √ √ ONG 25 DCI R410A ONG 35 DCI R410A √ √ √ 0NG 50 DCI R410A √ The above table lists outdoor units and K indoor units which can be matched together.

  • Page 7: Product Data Sheet

    PRODUCT DATA SHEET PRODUCT DATA SHEET K25 DCI Model Indoor Unit K25 DCI Model Outdoor Unit ONG25 DCI Installation Method Flare Characteristics Units Cooling Heating Btu/hr 8530 (5120-12970) 11600 (5120-17060) Capacity 2500 (1500 - 3800) 3400 (1500 - 5000) Power Input 590 (420-1000) 915 (400-1500) 4.24...
  • Page 8 PRODUCT DATA SHEET K35 DCI Model Indoor Unit K35 DCI Model Outdoor Unit ONG35 DCI Installation Method Flare Characteristics Units Cooling Heating Btu/hr 11940 (5100 - 14960) 14620 (5100 - 18700) Capacity 3500 (1500 - 4400) 4300 (1500 - 5500) Power Input 950 (420-1250) 1330 (400-1850)
  • Page 9 PRODUCT DATA SHEET K35S DCI Model Indoor Unit K35S DCI Model Outdoor Unit ONG35 DCI Installation Method Flare Characteristics Units Cooling Heating Btu/hr 11940 (5800 - 16380) 15300 (5780-19720) Capacity 3500 (1700 - 4800) 4500 (1700 - 5800) Power Input 870 (460 - 1300) 1180 (350-1580) 4.02...
  • Page 10 PRODUCT DATA SHEET K50 DCI Model Indoor Unit K50 DCI Model Outdoor Unit ONG35 DCI Installation Method Flare Characteristics Units Cooling Heating Btu/hr 17060 (4610 – 21840) 21500 (4610 - 25590) Capacity 5000 (1350 – 6400) 6300 (1350 – 7500) Power Input 1550 (530 –...

  • Page 11: Rating Conditions

    RATING CONDITIONS RATING CONDITIONS Standard conditions in accordance with ISO 5151, ISO 13253 (for ducted units) and EN 14511. Cooling: Indoor: C DB 19 C WB Outdoor: 35 C DB Heating: Indoor: C DB Outdoor: 7 C DB 6 C WB Operating Limits Indoor Outdoor...

  • Page 12: Outline Dimensions

    OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit: K 25, 35, 35S, 50 DCI Outdoor Unit: ONG 25, 35, 35S, 50 DCI Service Manual - K DCI Revision Y05-02 CONTENTS CONTENTS...

  • Page 13: Performance Data

    PERFORMANCE DATA PERFORMANCE DATA K25 DCI 5.1.1 Cooling Capacity (kW) - Run Mode ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL 22/15 24/17 27/19 29/21 32/23 ENTERING AIR DB DATA TEMPERATURE [C 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range) 25 - 50 % of nominal...
  • Page 14 PERFORMANCE DATA 5.1.3 Heating Capacity (kW) - Run Mode ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/ DATA WB TEMPERATURE [ºC] 2.16 2.01 1.86 -15/-16 0.55 0.60 0.66 2.41 2.26 2.11 -10/-12 0.66 0.72 0.77 2.59 2.44 2.29 -7/-8...
  • Page 15 PERFORMANCE DATA Capacity Correction Factor Due to Tubing Length 5.2.1 Cooling 1.01 1.00 0.99 0.98 0.97 0.96 0.95 0.94 0.93 0.92 0.91 9 10 11 12 13 14 15 16 17 18 19 20 Tubing Length [m] 5.2.2 Heating 1.02 1.00 0.98 0.96...
  • Page 16 PERFORMANCE DATA K35 DCI 5.3.1 Cooling Capacity (kW) - Run Mode ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range) 25 - 50 % of nominal...
  • Page 17 PERFORMANCE DATA 5.3.3 Heating Capacity (kW) - Run Mode ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/ DATA WB TEMPERATURE [ºC] 2.74 2.55 2.35 -15/-16 0.80 0.88 0.96 3.05 2.86 2.66 -10/-12 0.96 1.04 1.12 3.28 3.09 2.90 -7/-8...
  • Page 18 PERFORMANCE DATA Capacity Correction Factor Due to Tubing Length 5.4.1 Cooling 1.01 1.00 0.99 0.98 0.97 0.96 0.95 0.94 0.93 0.92 0.91 9 10 11 12 13 14 15 16 17 18 19 20 Tubing Length [m] 5.4.2 Heating 1.02 1.00 0.98 0.96...
  • Page 19 PERFORMANCE DATA K35S DCI 5.5.1 Cooling Capacity (kW) - Run Mode ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL 22/15 24/17 27/19 29/21 32/23 ENTERING AIR DB DATA TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range) 25 - 50 % of nominal...
  • Page 20 PERFORMANCE DATA 5.5.3 Heating Capacity (kW) - Run Mode ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/ DATA WB TEMPERATURE [ºC] 2.86 2.66 2.46 -15/-16 0.71 0.78 0.85 3.19 2.99 2.79 -10/-12 0.85 0.93 1.00 3.43 3.23 3.03 -7/-8...
  • Page 21 PERFORMANCE DATA 15.6 Capacity Correction Factor Due to Tubing Length 5.6.1 Cooling 1.01 1.00 0.99 0.98 0.97 0.96 0.95 0.94 0.93 0.92 0.91 9 10 11 12 13 14 15 16 17 18 19 20 Tubing Length [m] 5.6.2 Heating 1.02 1.00 0.98...
  • Page 22 PERFORMANCE DATA K50 DCI 5.7.1 Cooling Capacity (kW) - Run Mode ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range) 25 - 50 % of nominal...
  • Page 23 PERFORMANCE DATA 5.7.3 Heating Capacity (kW) - Run Mode ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 2.66 2.28 1.90 -15/-16 1.15 1.23 1.31 3.52 3.13 2.75 -10/-12 1.30 1.38 1.46 4.16 3.77 3.39 -7/-8 1.41...
  • Page 24 PERFORMANCE DATA Capacity Correction Factor Due to Tubing Length 5.8.1 Cooling 1.001 1.000 0.999 0.998 0.997 0.996 0.995 0.994 0.993 Tubing Length[m] 5.8.2 Heating 1.02 1.00 0.98 0.96 0.94 0.92 0.90 0.88 0.86 Tubing Length[m] 5-12 Revision Y05-02 Service Manual - K DCI CONTENTS CONTENTS...

  • Page 25: Pressure Curves

    PRESSURE CURVES PRESSURE CURVES Model: K 25 DCI 6.1.1 Cooling – Test Mode Suction Pressure Vs.Outdoor Temp' - Cooling 1400 Indoor DB/WB 1300 Tem p. 1200 22/15 1100 24/17 1000 27/19 29/21 32/23 Outdoor DB Temperature [ºC] Discharge Pressure Vs.Outdoor Temp'- Cooling 4000 Indoor 3750...
  • Page 26 PRESSURE CURVES 6.1.2 Heading – Test Mode Suction Pressure Vs. Outdoor Temp' - Heating 1300 1200 1100 Indoor DB 1000 Outdoor WB Temperature[ºC] Discharge Pressure Vs.Outdoor Temp'- Heating 4000 3750 3500 Indoor DB 3250 3000 2750 2500 2250 2000 1750 1500 1250 1000...
  • Page 27 PRESSURE CURVES Model: K 35 DCI 6.2.1 Cooling – Test Mode Suction Pressure Vs.Outdoor Temp' - Cooling 1400 Indoor 1300 DB/WB 1200 22/15 1100 24/17 1000 27/19 29/21 32/23 Outdoor DB Temperature [ºC] Discharge Pressure Vs.Outdoor Temp'- Cooling Indoor 4000 DB/WB 3750 3500...
  • Page 28 PRESSURE CURVES 6.2.2 Heating – Test Mode Suction Pressure Vs.Outdoor Temp' - Cooling 1400 Indoor 1300 DB/WB 1200 22/15 1100 24/17 1000 27/19 29/21 32/23 Outdoor DB Temperature [ºC] Discharge Pressure Vs.Outdoor Temp'- Cooling Indoor 4000 DB/WB 3750 3500 22/15 3250 3000 24/17...
  • Page 29 PRESSURE CURVES Model: K 35S DCI 6.3.1 Cooling – Test Mode Suction Pressure Vs.Outdoor Temp' - Cooling 1400 Indoor 1300 DB/WB 1200 22/15 1100 24/17 1000 27/19 29/21 32/23 Outdoor DB Temperature[ºC] Discharge Pressure Vs.Outdoor Temp' - Cooling 4000 3750 Indoor 3500 DB/WB...
  • Page 30 PRESSURE CURVES 6.3.2 Heating – Test Mode Suction Pressure Vs.Outdoor Temp' - Heating 1300 1200 1100 Indoor DB 1000 Outdoor WB Temperature[ºC] Discharge Pressure Vs.Outdoor Temp' - Heating 4000 3750 3500 Indoor DB 3250 3000 2750 2500 2250 2000 1750 1500 1250 1000...
  • Page 31 PRESSURE CURVES Model: K 50 DCI 6.4.1 Cooling – Test Mode Suction Pressure Vs.Outdoor Temp' - Cooling 1400 Indoor 1300 DB/WB 1200 22/15 1100 24/17 1000 27/19 29/21 32/23 Outdoor DB Temperature[ºC] Discharge Pressure Vs.Outdoor Temp' - Cooling 4250 Indoor 4000 3750 DB/WB...

  • Page 32: Service Manual - K Dci

    PRESSURE CURVES 6.4.2 Cooling – Test Mode Suction Pressure Vs.Outdoor Temp' - Heating 1100 1000 Indoor DB Outdoor WB Temperature[ºC] Discharge Pressure Vs.Outdoor Temp' - Heating 4000 3750 3500 3250 Indoor DB 3000 2750 2500 2250 2000 1750 1500 1250 1000 Outdoor WB Temperature[ºC] Revision Y05-02...

  • Page 33: Electrical Data

    ELECTRICAL DATA ELECTRICAL DATA Single Phase Units Model K 25 DCI K 35/35S DCI K 50 DCI Power Supply 1 PH, 220-240 VAC, 50Hz Connected to Indoor Maximum Current 10 A 12 A 35 A Inrush Current 10 A 10.5 A Starting Current Circuit breaker 16 A...

  • Page 34: Wiring Diagrams

    WIRING DIAGRAMS WIRING DIAGRAMS K25, 35, 35S, 50 DCI Service Manual - K DCI Revision Y05-02 CONTENTS CONTENTS...

  • Page 35: Refrigeration Diagrams

    REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS K 25, 35,35S, 50 DCI Service Manual - K DCI Revision Y05-02 CONTENTS CONTENTS...

  • Page 36: Tubing Connections

    TUBING CONNECTIONS TUBING CONNECTIONS TUBE (Inch) ¼” ⅜” ½” ⅝” ¾” TORQUE (Nm) Flare Nuts 11-13 40-45 60-65 70-75 80-85 Valve Cap 13-20 13-20 18-25 18-25 40-50 Service Port Cap 11-13 11-13 11-13 11-13 11-13 Valve Protection Cap-end Refrigerant Valve Port (use Allen wrench to open/close) Valve Protection Cap Refrigerant Valve Service Port Cap...

  • Page 37: Control System

    CONTROL SYSTEM CONTROL SYSTEM 11.1 General Functions and Operating Rules The DCI software is fully parametric. All the model dependent parameters are shown in Blue color and with Italic style [parameter]. The parameters values are given in the last section of this control logic chapter of the service manual.
  • Page 38 CONTROL SYSTEM Target frequency limits as a function of outdoor air temperature )OAT(: OAT Range Cool mode limits Heat mode limits < 6 MaxFreqAsOATC No limit 6 ≤ OAT < 15 MaxFreqAsOAT1H 15 ≤ OAT < 24 MaxFreqAsOAT2H 24 ≤ OAT No limit 11.1.4 Frequency Changes Control...
  • Page 39 CONTROL SYSTEM 11.1.8 Heating Element Control Heating element can be started if LOAD > * Maxi mumNLOAD AND Indoor Coil temperature <45. The heating element will be stopped when LOAD < MaximumNLOAD OR if Indoor Coil Temperature > 11.1.9 Outdoor Fan Control 7 outdoor fan speeds are determined for each model.

  • Page 40: Fan Mode

    CONTROL SYSTEM 11.1.13 Electro Static Filter )ESF( Control ESF is on when ESF switch is on, Safety switch is pressed, unit is on, AND indoor fan is on. 11.1.14 Base Heater Control When OAT is connected, Base Heater will be on when unit is in heating and OAT<2 When OAT is disconnected, Base Heater will be on when unit is in heating.

  • Page 41: Dry Mode

    CONTROL SYSTEM 11.4.2 Indoor Fan Control in Heat Mode Indoor fan speed depends on the indoor coil temperature: ICTST ICTVL ICTL ICTH ICTT 11.5 Auto Cool/Heat Mode When in auto cool heat mode unit will automatically select between cool and heat mode according to the difference between actual room temperature and user set point temperature )∆T(.
  • Page 42 CONTROL SYSTEM 11.7.2 Indoor Coil over Heating Protection ICT Trend Fast Decreasing No Change Increasing Fast Decreasing Increasing > 53 <ICT ≤ 55 49 < ICT ≤ 53 47 < ICT ≤ 49 45 < ICT ≤ 47 Norm Norm 43 <...
  • Page 43 CONTROL SYSTEM 11.7.5 Heat Sink Over Heating Protection (NA for DCI 25 and 35) HST Trend Decreasing No Change Increasing > 90 85 < HST ≤ 90 82 < HST ≤ 85 80 < HST ≤ 82 78 < HST ≤ 80 Norm Norm HST ≤...
  • Page 44 CONTROL SYSTEM 11.7.6.2 Deicing Protection Procedure Threshold COMP max. 12 minutes HEAT COOL OFAN EEVDeicerOpen T1 = T2 = 36 seconds, T3 = 6 seco 11.8 Condensate Water Over Flow Protection Each of the pins P1, P2, P3 can have two options: 1 –...
  • Page 45 CONTROL SYSTEM Water Level LEVEL4 LEVEL 3 LEVEL1 Pump NLOAD BLINK OPER LED NORMAL 11.8.2 1 Level Logic (used in all models except for floor/ceiling models) Level Don`t Normal care Don`t Overflow care Overflow when Overflow when unit is ON unit is OFF Overflow Water Level...
  • Page 46 CONTROL SYSTEM 11.10 Operating the Unit from the Mode Button Forced operation allows 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 Heating 11.11 On Unit Controls and Indicators 11.11.1 Indoor Unit Controller Controls and Indicators For All Models Except for Floor/Ceiling model...
  • Page 47 CONTROL SYSTEM 11.11.2 Indoor Unit Controls and Indicators for LCD Display STBY Cool Heat Auto SPT(1*) SPT(1*) SPT(1*) SPT(1*) SPT(1*) SPT(1*) OFF(2*) ON(2*) ON(2*) ON(2*) ON(2*) ON(2*) OFF(2*) OFF(2*) OFF(2*) OFF(2*) OFF(2*) OFF(2*) (Low) User User User User User (Med) setting setting setting...
  • Page 48 CONTROL SYSTEM 11.11.3 Indoor Unit Controller Controls and Indicators for Floor/Ceiling Model STANDBY Lights up when the Air Conditioner is connected to power and is ready INDICATOR for operation OPERATE 1. Lights up during operation. INDICATOR 2. Blinks for 300 msec., to announce that a R/C infrared signal has been received and stored.
  • Page 49 CONTROL SYSTEM 11.12 Jumper Setting 11.1 . Indoor Unit Controller 0 = Open Jumper (connect jumper). 1 = Close Jumper (connect jumper). Self test Jumper – OPERATION SELF-TEST NORMAL Compensation Jumper – J2 Model J2 (Default) Compensation Wall Mounted Activated Floor/Ceiling Deactivated Ducted/cassette...

  • Page 50: Test Mode

    CONTROL SYSTEM 11.12.2 Outdoor Unit Controller JP9 JUMPER LAYOUT Reserved (PIN ODU3 (PIN 7) ODU2 (PIN 5) ODU1 (PIN 3) ODU0 (PIN 1) GND (PIN 10) GND (PIN 8) (PIN 6) (PIN 4) (PIN 2) ODU MODEL SELECTION ODU3 ODU2 ODU1 ODU0 ODU Model...
  • Page 51 CONTROL SYSTEM 11.13.2 Unit Operation in Test Mode In test mode, the unit will operate in fixed settings according to the indoor fan speed setting: Indoor Fan Speed Setting Unit Setting Minimum Capacity Setting High Nominal Capacity Setting Auto Maximum Capacity Setting During test mode, protections are disabled, except for stop compressor status.
  • Page 52 CONTROL SYSTEM 11.14.2 Outdoor Units SW Parameters Parameter Name DCI25 DCI35 DCI 50 DCI50 DUO Compressor Parameters MinFreqC MaxFreqC MinFreqH MaxFreqH Step1Freq Step2Freq Step3Freq Frequency limits as a function of outdoor air temperature MaxFreqAsOATC MaxFreqAsOAT1H MaxFreqAsOAT2H Compressor Over Heating Protection CTTOH1 CTTOH2 CTTOH3...

  • Page 53: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING Warning When Power Up – the whole outdoor unit controller, including the wiring, is under HIGH VOLTAGE Never open the Outdoor unit before turning off the PowerHIG When turned off, the system is still charged (400V)yle It takes about 4 Min. to discharge the system. Touching the controller before discharging may cause an electrical shock For safe handling of the controller please refer to section 12.6 below.
  • Page 54 TROUBLESHOOTING SYMPTOM PROBABLE CORRECTIVE ACTION CAUSE Compressor is on but Problem with Check outdoor fan motor according outdoor fan does not outdoor electronics to the procedure in section 12.5.3 work or outdoor fan below, if not OK replace controller Unit works in wrong Electronics or Check RV power connections, if OK, mode )cool instead of...
  • Page 55 TROUBLESHOOTING 12.3 Judgment by Indoor/Outdoor Unit Diagnostics Enter diagnostics mode - press for five seconds Mode button in any operation mode. Acknowledgment is by 3 short beeps and lights of COOL and HEAT LEDs. Then, every short pressing of Mode button will scroll between Indoor and Outdoor unit diagnostic modes by the acknowledgment of 3 short beeps and lighting of COOL and HEAT LED s.
  • Page 56 TROUBLESHOOTING 12.3.2 Indoor unit diagnosis and corrective actions Probable Cause Corrective Action Fault Check sensor connections or Sensor failures of replace sensor. all types Indoor and Outdoor Replace Indoor controller. Communication controllers are with different mismatch Versions. No Communication Communication or grounding Check Indoor to Outdoor wiring is not good.
  • Page 57 TROUBLESHOOTING 12.3.3 Outdoor unit Diagnostics Problem OCT is disconnected OCT is shorted CTT is disconnected CTT is shorted HST is disconnected (when enabled) HST is shorted (when enabled) OAT is disconnected (when enabled) OAT is shorted (when enabled) TSUC is disconnected (when enabled) TSUC is shorted (when enabled) IPM Fault Bad EEPROM...
  • Page 58 TROUBLESHOOTING 12.3.4 Outdoor unit diagnosis and corrective actions Probable Cause Corrective Action Fault Sensors failures of all Check sensors types connections or replace sensors. IPM Fault Electronics HW Check all wiring and problem umper settings, if OK, replace electronics. Bad EEPROM No action, unless special parameters are required for unit operation.
  • Page 59 TROUBLESHOOTING 12.4 Judgment by MegaTool MegaTool is a special tool to monitor the system states. Using MegaTool requires: • A computer with RS232C port. • A connection wire for MegaTool. • A special MegaTool software. Use MegaTool according to following procedure: •...
  • Page 60 TROUBLESHOOTING 12.6 Precaution, Advise and Notice Items 12.6.1 High voltage in Outdoor unit controller. Whole controller, including the wires that are connected to the Outdoor unit controller may have the potential hazard voltage when power is on. Touching the Outdoor unit controller may cause an electrical shock.

  • Page 61: Exploded Views And Spare Parts Lists

    EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS 13.1 Indoor Unit: K 25, 35, 35S, 50 DCI K9/12/18 DCI LV Service Manual - K DCI Revision Y05-02 13-1 CONTENTS CONTENTS...
  • Page 62 EXPLODED VIEWS AND SPARE PARTS LISTS 13.2 Indoor Unit: K 25, 35, 35S 50 DCI (page 2) （Grill B P/N:372231） CASSETTE AUTO LOUVER 13-2 Revision Y05-02 Service Manual - K DCI CONTENTS CONTENTS...
  • Page 63 EXPLODED VIEWS AND SPARE PARTS LISTS 13.3 Indoor Unit: K 25, 35 DCI Total Quan. Part No. Name Version 200014 SCREW 4X16 208023 Clip 372273 Flap(White) 4521915 Front(White) 391746 Signal Line 234132 RECEIVER ASSEMBLY 908-081-00 377135 Front EPS I 377138 Front EPS II 4520900 Grill Attachment Assy.
  • Page 64 EXPLODED VIEWS AND SPARE PARTS LISTS 13.4 Outdoor Unit: K 35S DCI Total Part No. Name Version Quan. 200014 SCREW 4X16 208023 Clip 372273 Flap(White) 4521915 Front(White) 391746 Signal Line 234132 RECEIVER ASSEMBLY 908-081-00 377135 Front EPS I 377138 Front EPS II 4520900 Grill Attachment Assy.
  • Page 65 EXPLODED VIEWS AND SPARE PARTS LISTS 13.5 Indoor Unit: K 50 DCI Total Quan. No. Part No. Name Version 200014 SCREW 4X16 208023 Clip 391746 Signal Line 234132 RECEIVER ASSEMBLY 908-081-00 4520900 Grill Attachment Assy. 4520923 Drain Pan 232299 Indoor Sensor BLACK 452783900 Gas Pipe Assy K18 DCI R410A 452784000...
  • Page 66 EXPLODED VIEWS AND SPARE PARTS LISTS 13.6 Outdoor Unit: ONG3 25, 35, 35S DCI 13-6 Revision Y05-02 Service Manual - K DCI CONTENTS CONTENTS...
  • Page 67 EXPLODED VIEWS AND SPARE PARTS LISTS 13.7 Outdoor Unit: ONG3 25, 35, 35S DCI Part No. Description Unit Front panel A 433218 Air inlet ring-420 4526340 Painting insulation plate 433223 Axial fan OD=401 4526476 DC motor for DCI25/35 4527092 Motor support 433215 Base painting Assy.
  • Page 68 EXPLODED VIEWS AND SPARE PARTS LISTS 13.8 Outdoor Unit: K 50 DCI 13-8 Revision Y05-02 Service Manual - K DCI CONTENTS CONTENTS...
  • Page 69 EXPLODED VIEWS AND SPARE PARTS LISTS 13.9 Outdoor Unit: K 50 DCI Part No. Description Unit 433218 Front panel A 4526340 Air inlet ring-420 433223 Painting insulation plate 4526476 Axial fan OD=401 4526475 DC motor for DCI 50 4526457 Motor support 4527363 Base painting Assy.
  • Page 70 APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► OPERATION MANUAL K 25, 35, 35S 50 DCI ► INSTALLATION MANUAL K 25, 35, 35S 50 DCI Service Manual - K DCI Revision Y05-02 14-1 CONTENTS CONTENTS...
  • Page 71 FRANCAIS ENGLISH DEUTSCH ESPANOL ITALIANO APPENDIX A...
  • Page 72 APPENDIX A...
  • Page 73 APPENDIX A...
  • Page 74 INTRODUCTION OPERATI NG TEMPERATURE RANGE: ~ 46 This Split Air Conditioner is designed for versatile application: Cooling. Dehumidifying. Heating. Filtration. Ventilation Test Mode APPENDIX A...

  • Page 75: System Description

    SYSTEM DESCRIPTION Not connected in multi split applications APPENDIX A...
  • Page 76 APPENDIX A...
  • Page 77 APPENDIX A...
  • Page 78 Latch C B A APPENDIX A...
  • Page 79 APPENDIX A...
  • Page 80 APPENDIX A...
  • Page 81 APPENDIX A...
  • Page 82 APPENDIX A...
  • Page 83 APPENDIX A...
  • Page 84 APPENDIX A...
  • Page 85 APPENDIX A...
  • Page 86 INSTRUCTIONS D'INSTALLATION INSTALLATION INSTRUCTIONS ENGLISH INSTALLATION SANLEITUNG DEUTSCH INSTRUCCIONES DE INSTALACI[N ITALIANO ISTRZIONE PER L'INSTALLAZIONE APPENDIX A...

  • Page 87: Installation Instructions

    E N G L I S H INSTALLATION INSTRUCTIONS ACCESSORIES SUPPLIED WITH THE AIR CONDITIONER LOCATION OF INDOOR AND OUTDOOR UNIT INSTALLATION OF THE INDOOR UNIT CONDENSATE HOSE CONNECTION ELECTRICAL CONNECTION BETWEEN INDOOR AND OUTDOOR UNIT REFRIGERANT TUBING FINAL TASKS The appliance shall not be installed in the laundry.
  • Page 88 I N S T A L L A T I O N I N S T R U C T I O N S FOR DCI SPLIT WALL MOUNTED AIR CONDITIONER ACCESSORIES SUPPLIED WITH LOCATION OF INDOOR AND THE AIR CONDITIONER OUTDOOR UNIT Shape Name...
  • Page 89 To remove To attach Fig 3 100 mm 100 mm 500 mm 400 mm Capacity L.MAX.(m) H.MAX.(m) 9000 Btu (2500 W) model 12000 Btu (3500 W) model 18000 Btu (5000 W) model 100 mm NOTE: No additional charge is required. Fig 4 Fig.4 1.

  • Page 90: Installation Of The Indoor Unit

    INSTALLATION OF THE INDOOR UNIT CEILING MOUNTING WARNING ! Mark the position of each support rod. If it is indented to install ducting to an adjacent room, refer to Ceiling mounting for removal of the pre-punched panel before installing the cassette. CASSETTE FITTING Present the cassette to the support rods.
  • Page 91 CONDENSATE HOSE 3. Plug the gaps between the ducts and the opening CONNECTION edge with anti-condensation insulation. 4. Use material which can withstand a continuous operating temperature of 60 C. The ducts can be of the CONDENSATE HOSE CONNECTION flexible type with a spring core or of corrugated aluminium, covered inside with an insulating material (12 1.
  • Page 92 ELECTRICAL CONNECTION BETWEEN INDOOR AND OUTDOOR UNIT Power input cable ELECTRICAL REQUIREMENTS Electrical wiring and connections should be made by qualified electricians and in accordance with local electrical codes and regulation. The air conditioner units must be grounded. The air conditioner unit must be connected to an adequate power outlet from a separate branch circuit protected by a time delay circuit breaker, as Fig 15a...

  • Page 93: Refrigerant Tubing

    REFRIGERANT TUBING CONNECT THE INDOOR TO THE OUTDOOR UNIT TUBE SIZE TORQUE Tightening The indoor unit contains a small quantity of nitrogen. Do Liquid line 1/4" 15-20 N.M. torques of unions not unscrew the nuts from the unit until you are ready to Suction line 3/8"...
  • Page 94 3. The seals are illustrated in the diagram below. They EVACUATION OF THE REFRIGERATION TUBES AND avoid: THE INDOOR UNIT Air by pass After connecting the unions of the indoor and outdoor units, purge the air from the tubes and indoor unit as B Treated air being distributed into the suspended follows: ceiling space.

  • Page 95: Heating

    FINAL TASKS 1. Check all valve caps and ensure that they had been tightened properly. Close the valve cover. 2. Fill gaps on the wall between hole sides and tubing with sealer. 3. Attach wiring and tubing to the wall with clamps where necessary. 4.
  • Page 96 Pact No:452815700/01 APPENDIX A...

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