Related Manuals for Electra WNG 25 DCI INV
Summary of Contents for Electra WNG 25 DCI INV
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Page 1: Service Manual
Service Manual WNG LED/LCD DCI Inverter series Indoor Units Outdoor Units WNG 25 DCI INV ONG 25 DCI INV WNG 35 DCI INV ONG 35 DCI INV REFRIGERANT R410A HEAT PUMP DECEMBER 2004... -
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
General The new WNG DCI INVERTERS split wall mounted range comprise the following RC (heat pump) models: WNG 25 DCI INV WNG 35 DCI INV The indoor WNG units are available as LED or LCD display types, featuring esthetic design, compact dimensions, and low noise operation. - Page 5 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 o New design is available in LCD and LED versions. o Old design is available in LED version only. Indoor Unit Features: Features WNG 25,35...
- Page 6 INTRODUCTION Outdoor Unit The WNG DCI INV outdoor units can be installed as floor or wall mounted units by using a wall supporting bracket. The metal sheets are protected by anti- corrosion paint work allowing long life resistance. All outdoor units are pre-charged. For further information please refer to the Product Data Sheet, Chapter 2.
- Page 7 INTRODUCTION 1.11 Matching Table 1.11.1 R410A INDOOR UNITS OUTDOOR UNITS WNG25 DCI MODEL REFRIGERENT 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 matched with other types of indoor units such as cassettes, For further information please refer to the relevant Service Manual.
- Page 8 PRODUCT DATA SHEET PRODUCT DATA SHEET WNG 25 DCI R410A WNG/ONG3 SPLIT DC INVERTER Item Model WNG-25 DCI / ONG3-25 DCI Cooling Heating Capacity 8530 4780-12280 11600 5120-17060 Btu/hr Kcal/hr 2150(1200-3100) 2920(1290-4300) 2500 1400-3600 3400 1500-5000 Total Input (Cooling / Heating) 595 420-1000 810 390-1600 E.E.R(Cooling) / C.O.P(Heating)
- Page 9 PRODUCT DATA SHEET WNG 35 DCI R410A WNG/ONG3 SPLIT DC INVERTER Item Model WNG-35 DCI / ONG3-35 DCI Cooling Heating Capacity 11940 4780-14670 14670(5100-19790 Btu/hr Kcal/hr 3010(1200-3700) 3700(1290-4990) 3500 1400-4300 4300 1500-5800 Total Input (Cooling / Heating) 990 420-1250 1125 390-1750 3.54 3.82 E.E.R(Cooling) / C.O.P(Heating)
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Page 10: 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 11: Outline Dimensions
OUTLINE DIMENTIONS OUTLINE DIMENSIONS WNG 25/35 DCI Indoor Unit CEELING MOUNTING TEMPLATE TO BE USED FOR LOCATION OF INDOOR UNIT ON THE WALL INDOOR UNIT OUTLINE 810.0 MOUTING PLATE OUTLINE 30.0 167.5 167.5 70.0 93.0 93.0 TUBING WALL OPENING 70.0 )FOR REAR ROUTING( TUBING WALL OPENING )FOR REAR LEFT ROUTING(... -
Page 12: Performance Data
PERFORMANCE DATA PERFORMANCE DATA WNG 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) 25 - 50 % of nominal... - Page 13 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 14 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 15 PERFORMANCE DATA WNG 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 16 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 17 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 18 OP RATING CURVES PRESSURE CURVES Model: WNG 25+25 DUO 50 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 19 OP RATING CURVES Model: WNG 25 DCI 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 Indoor DB 3250 Temp' 3000 2750 2500 2250 2000 1750...
- Page 20 OP RATING CURVES Model: WNG 35 DCI 6.2.1 Cooling – Test Mode Suction Pressure VS. Outdoor Temp' Indoor DB/WB 1400 Temp. 1300 1200 22/15 1100 24/17 1000 27/19 29/21 32/23 Outdoor Temp.(°C DB) Discharge Pressure VS. Outdoor Temp' Indoor DB/WB 4000 Temp.
- Page 21 OP RATING CURVES Model: WNG 35 DCI 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 Temp' 3750 3500 3250 3000 2750 2500 2250...
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Page 22: Electrical Data
ELECTRICAL DATA ELECTRICAL DATA Single Phase Units model WNG 25 WNG 35 Power Supply 1 PH, 220-240 VAC, 50Hz Connected to Indoor Maximum Current 10 A 35 A Inrush Current 10 A Starting Current Circuit breaker 16 A Power supply wiring no. x cross section 3 X 1.5 mm Interconnecting cable no. -
Page 23: Wiring Diagram
ELECTRICAL CONNECTIONS WIRING DIAGRAM WNG 25/35 DCI Service Manual – WNG DCI Revision 0 CONTENT... -
Page 24: Refrigeration Diagram
REFRIGERATION DIAGRAM REFRIGERATION DIAGRAM WNG 25/35 DCI 9.1.1 Cooling Mode OUTDOOR UNIT INDOOR UNIT Sensor Sensor Flared Valves connection Reverse valve Indoor coil Strainer Strainer Outdoor coil 9.1.2 Heating Mode OUTDOOR UNIT INDOOR UNIT Sensor Sensor Flared Valves connection Reverse valve Indoor coil Strainer... - Page 25 TUBE (Inch) ¼’’ ’’ TORQUE (Nm) Flare Nuts 11-13 40-45 Valve Cap 13-20 13-20 Service Port Cap 11-13 11-13 CONTENT...
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Page 26: 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 27 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 28 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 29: 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 30: 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 31 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 32 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 33 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 34 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 35 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 36 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 37 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 38 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...
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Page 39: 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 40 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 41 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...
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Page 42: 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 43 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 44 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 45 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 46 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 47 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 48 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 49 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 50 CONTENT...
- Page 51 SPARE PARTS LIST 13.2 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. 4523060 4526299 Partition Outdoor DC inverter controller (English) 4526403...
- Page 52 EXPLODED VIEW 13.3 N-WNG 25/35 DCI INDOOR UNIT LCD Service Manual – WNG DCI Revision 0 13-3 CONTENT...
- Page 53 Motor Cover 4519365 Step Motor Wire B 4518737 Step Motor Wire A 4518679 Step Motor 4520061 Power Wire (Elco) Power Wire (Electra) Power Wire (Airwell) 4519900 Ionizer Cable A(Optional) 433134 Ionizer Power(Optional) 452867800 Transformer (Optional) 4526180 Indoor DC inverter controller 916-512-00...
- Page 54 EXPLODED VIEW 13.5 WNG 25/35 DCI INDOOR UNIT LED Service Manual – WNG DCI Revision 0 13-5 CONTENT...
- Page 55 SPARE PARTS LIST 13.6 WNG 25/35 DCI INDOOR UNIT LED Part No. Name Total Quan. Version 4518647 Grill A 4519364 Grill B Display panel (Only for grille A) 4518648 4523611 Display Air filter 4518655 4519132 Active carrbon filter 4519744 Cold catalyst filter Frame Assy 4518734 4518653...
- Page 56 EXPLODED VIEW 13.7 N-WNG 25/35 DCI INDOOR UNIT LED Service Manual - WNG DCI Revision 0 13-7 CONTENT...
- Page 57 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) 4522565 Power Wire (Airwell for Australia) 4521159 Power Wire (Gorenje)
- Page 58 APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL Service Manual – WNG DCI Revision 0 Appendix A CONTENT...
- Page 59 AUTO APPENDIX A...
- Page 60 APPENDIX A...
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Page 61: Tubing Connections
I N S T A L L A T I O N I N S T R U C T I O N S FO R DCI SPLIT WA LL MO U NT ED A IR CO NDIT IO NER ACCESSORIES SUPPLIED WITH LOCATION OF INDOOR AND THE AIR CONDITIONER... - Page 62 950mm 1800mm AUTO 80 mm Fig 3 50 mm 50 mm AUTO 2300 mm 100 mm 100 mm Fig 4 500 mm 400 mm 100 mm NO T E: Distance between indoor and outdoor units should be 20m. Height difference between indoor and outdoor units should be 10m.
- Page 63 INSTALLATION OF THE INDOOR UNIT Installation of the indoor unit only with one unit for REFRIGERATION TUBE ROUTING the sample. 1.T here are five possible routes for installing the INSTALLATION OF THE MOUNTING PLATE refrigeration tube as shown in fig 7. 2.For route (6), cut the bottom notch in the rear.
- Page 64 CONDENSATE HOSE SUSPENDING AND RELEASING THE UNIT FROM THE CONNECTION MOUNTING PLATE 1. Make sure that the refrigerant tubes, electric cables and 1. A ttach the condensate drain hose to the corrugated hose condensate water hose are well insulated with closed in the rear groove of the indoor unit.
- Page 65 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. T he air conditioner units must be grounded. T he air conditioner unit must be connected to an adequate power outlet from a separate branch circuit protected by a time delay circuit breaker, as Fig6a...
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Page 66: Refrigerant Tubing
TU BE SIZE TO RQU E Tightening REFRIGERANT TUBING Liquid line 1/4" 15-20 N.M. torques of unions Suction line 3/8" 30-35 N.M. and valve caps: Suction line 1/2" 50-54 N.M. CONNECT THE INDOOR TO THE OUTDOOR UNIT Suction line 5/8" 75-78 N.M. - Page 67 FINAL TASKS 1. Check all valve caps and ensure that they had tightened properly. Close the valve cover. 2. Fill gaps on the wall between hole sides and tubing with sealer. 3. A ttach wiring and tubing to the wall with clamps where necessary. 4.
- Page 68 APPENDIX A...
- Page 69 APPENDIX A...
- Page 70 AUTO APPENDIX A...
- Page 71 AUTO APPENDIX A...
- Page 72 APPENDIX A...
- Page 73 APPENDIX A...
- Page 74 F/A-PWR ESP-PWR COOL RESET HEAT MODE ESF-EN APPENDIX A...
- Page 75 APPENDIX A...
- Page 76 AUTO AUTO APPENDIX A...
- Page 77 APPENDIX A...
- Page 78 APPENDIX A...
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