Related Manuals for Electra WNG 25 DCI
Summary of Contents for Electra WNG 25 DCI
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Page 1: Service Manual
Service Manual WNG/LEX DCI Inverter Series 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 REFRIGERANT HEAT PUMP R410A MARCH – 2006... - 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.
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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: Main Features
INTRODUCTION INTRODUCTION General The new WNG DCI / LEX DCI INVERTER split wall mounted range has expanded, comprising two additional RC (heat pump) models: WNG 25 DCI ● WNG 35 DCI ● LEX 25 DCI ● LEX 35 DCI ●... -
Page 5: Indoor Unit
INTRODUCTION Indoor Unit The indoor unit is wall mounted, and can be easily fitted to many types of residential and commercials applications. WNG 25, 35 ● New design is available in LCD and LED versions. Old design is available in LED version only. LEX 25, 35 ●... -
Page 6: Outdoor Unit
INTRODUCTION Control The microprocessor indoor controller, and an infrared remote control, supplied as standard, provide complete operating function and programming. Remote controllers: RC-2/3/4/5/7, RC-4i-1, RCW, μBMS. Networking system Airconet version 4.2 and up, MIU SW version H8 and up. For further details please refer to the Operational Manual, Appendix A. Outdoor Unit The WNG DCI INV / LEX DCI INV outdoor units can be installed as floor or wall mounted units by using a wall supporting bracket. - Page 7 INTRODUCTION 1.11 Matching Table 1.11.1 R410A INDOOR UNITS OUTDOOR UNITS WNG25 WNG35 MODEL REFR” K25DCI K35DCI 25DCI 35DCI ONG25 √ √ √ R410A ONG35 √ √ 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.
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Page 8: Product Data Sheet
PRODUCT DATA SHEET PRODUCT DATA SHEET WNG 25 DCI (1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN 14511. (2) Airflow in ducted units; at nominal external static pressure. (3) Sound power in ducted units is measured at air discharge. - Page 9 PRODUCT DATA SHEET WNG 35 DCI (1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN 14511. (2) Airflow in ducted units; at nominal external static pressure. (3) Sound power in ducted units is measured at air discharge. (4) Sound pressure level measured at 1 meter distance from unit.
- Page 10 PRODUCT DATA SHEET LEX 25 DCI Model Indoor Unit LEX 25 DCI Model Outdoor Unit DCI 25 R410A Installation Method of Pipe Flared Characteristics Cooling Heating Units Btu/hr 8530(4780-12280) 11600(5120-17060) Capacity (4) 2.5(1.4-3.6) 3.4(1.5-5.0) Power input (4) 0.595(0.42-1.0) 0.81(0.39-1.6) EER (Cooling) or COP(Heating) (4) 4.20 4.20 Energy efficiency class...
- Page 11 PRODUCT DATA SHEET LEX 35 DCI Model Indoor Unit LEX 35 DCI Model Outdoor Unit DCI 35 R410A Installation Method of Pipe Flared Characteristics Cooling Heating Units Btu/hr 11940(4780-14670) 14670(5100-19790) Capacity (4) 3.5(1.4-4.3) 4.3(1.5-5.8) Power input (4) 0.99(0.42-1.25) 1.125(0.39-1.75) EER (Cooling) or COP(Heating) (4) 3.54 3.82 Energy efficiency class...
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Page 12: Rating Conditions
RATING CONDITIONS RATING CONDITIONS Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units). Cooling: Indoor: C DB 19 C WB Outdoor: 35 C DB Heating: Indoor: C DB Outdoor: 7 C DB 6 C WB Operating Limits 3.1.1 R410A Indoor... -
Page 13: Outline Dimensions
OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit: WNG 25, 35 DCI Indoor Unit: LEX 25, 35 DCI Revision Y06-01 Service Manual - WNG/LEX DCI CONTENT WNG/LEX DCI... - Page 14 OUTLINE DIMENSIONS Outdoor Unit: ONG 25,35 DCI Revision Y06-01 Service Manual - WNG/LEX DCI CONTENT WNG/LEX DCI...
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Page 15: Performance Data
PERFORMANCE DATA PERFORMANCE DATA WNG 25/LEX 25 DCI 5.1.1 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 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range) - Page 16 PERFORMANCE DATA 5.1.3 Heating Capacity (kW) - Run Mode) ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 2.16 2.01 1.86 -15/-16 0.49 0.54 0.58 2.41 2.26 2.11 -10/-12 0.59 0.64 0.68 2.59 2.44 2.29 -7/-8 0.66...
- Page 17 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 18 PERFORMANCE DATA WNG 35/LEX 35 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 19 PERFORMANCE DATA 5.3.3 Heating Capacity (kW) - Run Mode ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 2.74 2.55 2.35 -15/-16 0.68 0.74 0.81 3.05 2.86 2.66 -10/-12 0.81 0.88 0.95 3.28 3.09 2.90 -7/-8 0.92...
- Page 20 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...
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Page 21: Pressure Curves
PRESSURE CURVES PRESSURE CURVES Model: WNG 25/LEX 25 DCI 6.1.1 Cooling - Test Mode Suction Pressure VS. Outdoor Temp' Indoor DB/WB 1400 Temp. 1300 22/15 1200 24/17 1100 27/19 1000 29/21 32/23 Outdoor Temp.(°C DB) Discharge Pressure VS. Outdoor Temp' 4000 Indoor DB/WB 3750... - Page 22 PRESSURE CURVES 6.1.2 Heating - Test Mode Suction Pressure VS. Outdoor Temp' 1300 Indoor DB 1200 Temp' 1100 1000 Outdoor Temp.(°C WB) Discharge Pressure VS. Outdoor Temp' 3500 3250 Indoor DB 3000 Temp' 2750 2500 2250 2000 1750 1500 1250 1000 Outdoor Temp.(°C WB) Revision Y06-01...
- Page 23 PRESSURE CURVES Model: WNG 35/LEX 35 DCI 6.2.1 Cooling - Test Mode Suction Pressure VS. Outdoor Temp' Indoor DB/WB 1400 Temp. 1300 22/15 1200 1100 24/17 1000 27/19 29/21 32/23 Outdoor Temp.(°C DB) Discharge Pressure VS. Outdoor Temp' 4000 Indoor DB/WB 3750 Temp.
- Page 24 PRESSURE CURVES 6.2.2 Heating - Test Mode Suction Pressure VS. Outdoor Temp' 1300 Indoor DB 1200 Temp' 1100 1000 Outdoor Temp.(°C WB) Discharge Pressure VS. Outdoor Temp' Indoor DB 4000 3750 Temp' 3500 3250 3000 2750 2500 2250 2000 1750 1500 Outdoor Temp.(°C WB) Revision Y06-01...
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Page 25: Electrical Data
ELECTRICAL DATA ELECTRICAL DATA Single Phase Unit Model WNG25/LEX25 DCI WNG35/LEX35 DCI Power Supply 1 PH ,220-240VAC ,50HZ Connected to Indoor Maximum Current Inrush Current \ Starting Current\ Circuit Breaker Power Supply wiring no. x cross section 3 X 1.5 mm² Interconnecting cable no. -
Page 26: Wiring Diagrams
WIRING DIAGRAMS WIRING DIAGRAMS WNG 25, 35 DCI/LEX 25, 35 DCI Revision Y06-01 Service Manual - WNG/LEX DCI CONTENT WNG/LEX DCI... -
Page 27: Refrigeration Diagrams
REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS Heat Pump Models 9.1.1 WNG 25, 35 DCI /LEX 25, 35 DCI: Cooling Mode OUTDOOR UNIT INDOOR UNIT Sensor Sensor Flared Valves connection Reverse valve Indoor coil Strainer Strainer Outdoor coil 9.1.2 WNG 25, 35 DCI /LEX 25, 35 DCI: Heating Mode OUTDOOR UNIT INDOOR UNIT Sensor... - Page 28 TUBING CONNECTIONS TUBING CONNECTIONS TUBE (Inch) ¼’’ ’’ TORQUE (Nm) Flare Nuts 11-13 40-45 Valve Cap 13-20 13-20 Service Port Cap 11-13 11-13 Revision Y06-01 10-1 Service Manual - WNG/LEX DCI CONTENT WNG/LEX DCI...
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Page 29: 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 30 CONTROL SYSTEM Target frequency limits as a function of outdoor air temperature )OAT(: OAT Range Cool mode limits Heat mode limits < 6 No limit MaxFreqAsOATC 6 ≤ OAT < 15 MaxFreqAsOAT1H 15 ≤ OAT < 24 MaxFreqAsOAT2H 24 ≤ OAT No limit 11.1.4 Frequency Changes Control...
- Page 31 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.
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Page 32: 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 33: 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 )ΔT(. - Page 34 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 35 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 36 CONTROL SYSTEM 11.7.6.2 Deicing Protection Procedure Threshold COMP max. 12 minutes HEAT COOL OFAN EEVDeicerOpen 36 seconds, T3 = 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 with P4 0 –...
- Page 37 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 38 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 39 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 40 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.
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Page 41: Test Mode
CONTROL SYSTEM 11.12 Test Mode 11.12.1 Entering Test Mode System can enter Test mode in two ways: Automatically when the following conditions exists for 30 minutes continuously: Mode = Coo l, Set point 16, Room temper ature = 27±1, Outdoor temperature = 35±1 Mode = Heat, Set point = 30, Room temperature = 20±1, Outdoor temperature = 7±1 Manually when entering diagnostics with the following settings: Mode = Cool, Set point = 16... - Page 42 CONTROL SYSTEM 11.13 SW Parameters 11.13.1 Indoor Units SW Parameters General Parameters for All Models: Parameters defining the indoor fan speed as a function of Indoor Coil temperature in heat mode (ICT): ICTST Speed ICT to stop indoor fan ICTVLSpeed ICT to go down to very low speed ICTLSpeed ICT to start in very low speed...
- Page 43 CONTROL SYSTEM 11.13.2 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...
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Page 44: Troubleshooting
TROUBLESHOOTING TROUBLESHOOTING WNG25, 35/LEX25, 35 DCI 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. - Page 45 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 46 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 47 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 48 TROUBLESHOOTING 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 DC under voltage...
- Page 49 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 50 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 51 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.
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Page 52: Exploded Views And Spare Parts Lists
EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS 13.1 Outdoor Unit: ONG 25/35 DCI Service Manual - WNG/LEX DCI Revision Y06-01 13-1 CONTENT WNG/LEX DCI... - Page 53 EXPLODED VIEWS AND SPARE PARTS LISTS 13.2 Outdoor Unit: ONG 25/35 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 54 EXPLODED VIEWS AND SPARE PARTS LISTS 13.3 Indoor Unit: N-WNG 25/32 LCD DCI Service Manual - WNG/LEX DCI Revision Y06-01 13-3 CONTENT WNG/LEX DCI...
- Page 55 Motor Cover Step Motor Wire B 4519365 Step Motor Wire A 4518737 Step Motor 4518679 4520061 Power Wire (Elco) Power Wire (Electra) Power Wire (Airwell) Ionizer Cable A(Optional) 4519900 433134 Ionizer Power(Optional) 452867800 Transformer (Optional) 4526180 Indoor DC inverter controller 916-512-00...
- Page 56 EXPLODED VIEWS AND SPARE PARTS LISTS 13.5 Indoor Unit: WNG 25/35 LED DCI Service Manual - WNG/LEX DCI Revision Y06-01 13-5 CONTENT WNG/LEX DCI...
- Page 57 EXPLODED VIEWS AND SPARE PARTS LISTS 13.6 Indoor Unit: WNG 25/35 LED DCI Part No. Name Total Quan. Version Grill A 4518647 4519364 Grill B Display panel (Only for grille A) 4518648 4523611 Display Air filter 4518655 Active carrbon filter 4519132 Cold catalyst filter 4519744...
- Page 58 EXPLODED VIEWS AND SPARE PARTS LISTS 13.7 Indoor Unit: WNG 25/35 LED DCI Service Manual - WNG/LEX DCI Revision Y06-01 13-7 CONTENT WNG/LEX DCI...
- Page 59 4518651 Motor Side Cover 4518650 Motor Cover 4518737 Step Motor Wire A 4518679 Step Motor 4520061 Power Wire (Elco) 4520278 Power Wire (Electra without plug) 4521158 Power Wire (European plug) (Airwell for Australia) 4522565 Power Wire 4521159 Power Wire (Gorenje)
- Page 60 EXPLODED VIEWS AND SPARE PARTS LISTS 13.9 Outdoor Unit: ONG 25/35 DCI (new) Service Manual - WNG/LEX DCI Revision Y06-01 13-9 CONTENT WNG/LEX DCI...
- Page 61 EXPLODED VIEWS AND SPARE PARTS LISTS 13.10 Outdoor Unit: ONG 25/35 DCI (new) Part No. Description Unit 433218 Front panel A 4526340 Air inlet ring-420 Painting insulation plate 433223 Axial fan OD=401 4526476 DC motor for DCI25/35 452889600 Motor support 433215 4523060 Base painting Assy.
- Page 62 EXPLODED VIEWS AND SPARE PARTS LISTS 13.11 Indoor Unit: LEX 25/35 DCI Service Manual - WNG/LEX DCI Revision Y06-01 13-11 CONTENT WNG/LEX DCI...
- Page 63 EXPLODED VIEWS AND SPARE PARTS LISTS 13.12 Indoor Unit: LEX 25/35 DCI Description Grill A Assy./ LEX7/9/12/14 for Airwell 465800009 Grill A Assy./ LEX7/9/12/14 for Electra 465800016 4518655 Air Filter Active Carbon Static Fiber filter 4519132 Low Temperature Catalyst Fiber Filter 4519744 Front Frame Assy./ LEX7/9/12/14...
- Page 64 APPENDIX A 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 MANUAL WNG 25/35 DCI Revision Y06-01 14-1 Service Manual - WNG/LEX DCI CONTENT WNG/LEX DCI...