Electra WNG 50 DCI Service Manual
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Electra WNG 50 DCI Service Manual

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REFRIGERANT
SM WNGDCI 2-E.4 GB
WNG DC Inverter Series
R410A
NOVEMBER − 2008
CONTENTS
Outdoor Units
DCI 50
DCI 60
DCI 72
DCI 72 Z
DCI 80
HEAT PUMP

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Summary of Contents for Electra WNG 50 DCI

  • Page 1: Table Of Contents

    WNG DC Inverter Series Indoor Units Outdoor Units WNG 50 DCI DCI 50 WNG 60 DCI DCI 60 DCI 72 WNG 72 DCI DCI 72 Z WNG 80 DCI DCI 80 REFRIGERANT R410A HEAT PUMP NOVEMBER − 2008 SM WNGDCI 2-E.4 GB...
  • 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 INTRODUCTION ....................1-1 PRODUCT DATA SHEET ..................2-1 RATING CONDITIONS ..................3-1 OUTLINE DIMENSIONS ..................4-1 PERFORMANCE DATA & PRESSURE CURVES ..........5-1 SOUND LEVEL CHARACTERISTICS ..............6-1 ELECTRICAL DATA ....................7-1 WIRING DIAGRAMS .....................8-1 REFRIGERATION DIAGRAMS ................9-1 10. ELECTRICAL CONNECTIONS ................10-1 11.

  • Page 4: Main Features

    INTRODUCTION INTRODUCTION General The new WNG DCI INVERTER split wall mounted range has expanded, comprising the following RC (heat pump) models: WNG 50 ● WNG 60 ● WNG 72 ● WNG 80 ● 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. Indoor Unit features: Feature WNG 50 WNG 60 WNG 72 / 80 Display LCD or LED Ionizer Fresh air Indoor fan motor Variable speed (PG) Horizontal motorized louver...

  • Page 6: Outdoor Unit

    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 from 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: Indoor Units

    INTRODUCTION 1.11 Matching Table 1.11.1 R410A INDOOR UNITS OUTDOOR UNITS MODEL REFR” WNG 50 DCI WNG 60 DCI WNG 72 DCI WNG 80 DCI √ DCI 50 R410A √ DCI 60 R410A DCI 72 √ R410A DCI 72Z √ DCI 80 R410A SM WNGDCI 2-E.4 GB...

  • Page 8: Wng 50 Dci Dci

    PRODUCT DATA SHEET PRODUCT DATA SHEET WNG 50 DCI Model Indoor Unit WNG 50 Model Outdoor Unit DCI 50 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 17060(5120-20470) 20470(5120-25930) Capacity 5.00(1.50-6.00) 6.00(1.50-7.60) Power input 1.46(0.50-2.00) 1.66(0.45-2.20) EER (Cooling) or COP(Heating) 3.42...

  • Page 9: Wng 60 Dci Dci

    PRODUCT DATA SHEET WNG 60 DCI Model Indoor Unit WNG-60 Model Outdoor Unit DCI60 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 20470(5120-22860) 22180(5120-26950) Capacity 6.00(1.50-6.70) 6.50(1.80-7.90) Power input 1.99(0.50-2.20) 1.90(0.45-2.30) EER (Cooling) or COP(Heating) 3.02 3.42 Energy efficiency class Power supply V/Ph/Hz 220-240V/Single/50Hz...
  • Page 10 PRODUCT DATA SHEET WNG 72 DCI Model Indoor Unit WNG-DCI 72 Model Outdoor Unit GC-DCI 72 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 23188(5100~25575) 25916(5100~30000) Capacity 6.8(1.5-7.5) 7.6(1.5~8.8) Power input 2.25(0.5-2.8) 2.35(0.45~3.0) EER (Cooling) or COP(Heating) 3.01 3.23 Energy efficiency class Power supply...

  • Page 11: Wng 72 Dci Dci

    PRODUCT DATA SHEET WNG 72 / DCI 72Z Model Indoor Unit WNG 72 DCI Model Outdoor Unit DCI 72 Z R410A Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 23200(5120-25590) 24050(5120-30030) Capacity 6.80(1.50-7.50) 7.05(1.50-8.80) Power input 2.25(0.5-2.8) 2.19(0.45-3.0) EER (Cooling) or COP(Heating) 3.01 3.23...
  • Page 12 PRODUCT DATA SHEET WNG 80 DCI Model Indoor Unit WNG- 80 Model Outdoor Unit DCI 80 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 26620(5100~30035) 29010 (5100~32420) Capacity 7.8 (1.50~8.8) 8.5 (1.5~9.5) Power input 2.59 (0.50~3.1) 2.65 (0.5~3.2) EER (Cooling) or COP(Heating) 3.01 3.21...

  • Page 13: 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 14: Outline Dimensions

    OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit: WNG 50 / 60 / 72 DCI Outdoor Unit: DCI 50 SM WNGDCI 2-E.4 GB CONTENTS...
  • Page 15 OUTLINE DIMENSIONS Outdoor Unit: DCI 60 Indoor Unit: WNG 80 SM WNGDCI 2-E.4 GB CONTENTS...
  • Page 16 OUTLINE DIMENSIONS Outdoor Unit: DCI 72 / 72 Z / 80 SM WNGDCI 2-E.4 GB CONTENTS...

  • Page 17: Performance Data

    PERFORMANCE DATA & PRESSURE CURVES PERFORMANCE DATA WNG 50 / DCI 50 5.1.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21...
  • Page 18 PERFORMANCE DATA & PRESSURE CURVES 5.1.3 Heating Capacity (kW) - Run Mode) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ 2.73 2.34 1.94 -15/-16 1.16 1.24 1.33 3.60 3.21...
  • Page 19 PERFORMANCE DATA & PRESSURE CURVES WNG 60 / DCI 60 5.2.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OD COIL 22/15 24/17 27/19 29/21 32/23 ENTERING AIR DB DATA TEMPERATURE [ 80 - 110 % of nominal...
  • Page 20 PERFORMANCE DATA & PRESSURE CURVES 5.2.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ 2.96 2.53 2.11 -15/-16 1.33 1.42 1.52 3.90 3.48...
  • Page 21 PERFORMANCE DATA & PRESSURE CURVES WNG 72 / DCI 72 5.3.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OD COIL 22/15 24/17 27/19 29/21 32/23 ENTERING AIR DB DATA TEMPERATURE [ 80 - 110 % of nominal...
  • Page 22 PERFORMANCE DATA & PRESSURE CURVES 5.3.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ 3.46 2.96 2.46 -15/-16 1.64 1.76 1.88 4.57 4.07...
  • Page 23 PERFORMANCE DATA & PRESSURE CURVES WNG 72 / DCI 72Z 5.4.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OD COIL 22/15 24/17 27/19 29/21 32/23 ENTERING AIR DB DATA TEMPERATURE [ 80 - 110 % of nominal...
  • Page 24 PERFORMANCE DATA & PRESSURE CURVES 5.4.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ 3.21 2.75 2.28 -15/-16 1.53 1.64 1.75 4.23 3.77...

  • Page 25: Wng 80 Dci Dci

    PERFORMANCE DATA & PRESSURE CURVES WNG 80 DCI / DCI 80 5.5.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OD COIL 22/15 24/17 27/19 29/21 32/23 ENTERING AIR DB DATA TEMPERATURE [ 80 - 110 % of nominal...
  • Page 26 PERFORMANCE DATA & PRESSURE CURVES 5.5.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ OD COIL ENTERING AIR DB/WB DATA TEMPERATURE 3.87 3.31 2.75 -15/-16 1.85 1.99 2.12 5.11 4.55 3.99...
  • Page 27 PERFORMANCE DATA & PRESSURE CURVES Capacity Correction Factor Due to Tubing Length 5.6.1 WNG 50/60/72/80 DCI: Cooling 1.02 1.00 0.98 0.96 0.94 0.92 0.90 0.88 0.86 Tubing length(m) 5.6.2 Heating 1.02 1.00 0.98 0.96 0.94 0.92 0.90 0.88 0.86 0.84 Tubing Length(m) SM WNGDCI 2-E.4 GB 5-11...

  • Page 28: Pressure Curves

    PERFORMANCE DATA & PRESSURE CURVES Pressure Curves 5.7.1. Model: WNG 50 DCI / DCI 50 Cooling — Test Mode Suction Pressure VS.Outdoor Temp. 1100 1000 Indoor DB/WB Tem p' 2 2 / 1 5 2 4 / 1 7 2 7 / 1 9...
  • Page 29 PERFORMANCE DATA & PRESSURE CURVES 5.7.2. Heating — Test Mode Suction Pressure VS.Outdoor Temp. 1100 1000 Indoor DB Outdoor WB Temperature[ºC ] Discharge Pressure VS. Outdoor Temp. 4000 3500 Indoor DB 3000 2500 2000 1500 1000 Outdoor WB Temperature SM WNGDCI 2-E.4 GB 5-13 CONTENTS...

  • Page 30: Test Mode

    PERFORMANCE DATA & PRESSURE CURVES — Test Mode 5.7.3 Model: WNG 60 DCI / DCI 60 Cooling Suction Pressure VS.Outdoor Temp. 1100 1000 Indoor DB/WB Tem p' 2 2 / 1 5 2 4 / 1 7 2 7 / 1 9 2 9 / 2 1 3 2 / 2 3 Outdoor DB Temperature[ºC ]...
  • Page 31 PERFORMANCE DATA & PRESSURE CURVES 5.7.4 Heating — Test Mode Suction Pressure VS.Outdoor Temp. 1100 1000 Indoor DB Outdoor WB Temperature[ºC ] Discharge Pressure VS. Outdoor Temp. 4000 3500 3000 Indoor DB 2500 2000 1500 1000 Outdoor WB Temperature [ºC ] SM WNGDCI 2-E.4 GB 5-15 CONTENTS...
  • Page 32 PERFORMANCE DATA & PRESSURE CURVES — Test Mode 5.7.5 Model: WNG 72 DCI / DCI 72 Cooling Suction Pressure VS. Outdoor Temp. 1200 1100 Indoor DB/WB 1000 Temp. 22/15 24/17 27/19 29/21 32/23 Outdoor DB Temperature [ Discharge Pressure VS. Outdoor Temp. 4000 Indoor 3500...
  • Page 33 PERFORMANCE DATA & PRESSURE CURVES 5.7.6 Heating — Test Mode Suction Pressure VS. Outdoor Temp. 1200 1100 1000 Indoor DB Outdoor WB Temperature[ Discharge Pressure VS. Outdoor Temp. 4000 3500 Indoor DB 3000 2500 2000 1500 Outdoor WB Temperature[ SM WNGDCI 2-E.4 GB 5-17 CONTENTS...
  • Page 34 PERFORMANCE DATA & PRESSURE CURVES — Test Mode 5.7.7 Model: WNG 72 DCI / DCI 72Z Cooling Suction Pressure vs. Outdoor Temperature 1000 Indoor DB/WB 22/15 24/17 27/19 29/21 32/23 Outdoor DB Temperature Discharge Pressure vs. Outdoor Temperature Indoor 3750 DB/WB 3500 3250...
  • Page 35 PERFORMANCE DATA & PRESSURE CURVES 5.7.8 Heating — Test Mode Suction Pressure vs. Outdoor Temperature 1200 1100 1000 Indoor DB Outdoor WB Temperature Discharge Pressure vs. Outdoor Temperature 4000 3750 3500 3250 Indoor DB 3000 2750 2500 2250 2000 1750 1500 Outdoor WB Temperature SM WNGDCI 2-E.4 GB...

  • Page 36: Performance Data & Pressure Curves

    PERFORMANCE DATA & PRESSURE CURVES — Test Mode 5.7.9 Model: WNG 80 DCI / DCI 80 Cooling Suction Pressure VS.Outdoor Temp. 1100 1000 Indoor DB/WB Tem p' 2 2 / 1 5 2 4 / 1 7 2 7 / 1 9 2 9 / 2 1 3 2 / 2 3 Outdoor DB Temperature[ºC ]...
  • Page 37 PERFORMANCE DATA & PRESSURE CURVES 5.7.10 Heating — Test Mode Suction Pressure VS.Outdoor Temp. 1100 1000 Indoor DB Outdoor WB Temperature[ºC ] Discharge Pressure VS. Outdoor Temp. 4000 3750 3500 3250 Indoor DB 3000 2750 2500 2250 2000 1750 1500 1250 1000 Outdoor WB Temperature[ºC ]...

  • Page 38: Sound Level Characteristics

    SOUND LEVEL CHARACTERISTICS SOUND LEVEL CHARACTERISTICS Sound Pressure Level Unit Wall 0.8m FAN SPEED LINE Mic. Figure 1 Sound Pressure Level Spectrum (Measured as Figure 1) WNG 50 WNG 60 NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE APPROXIMATE THRESHOLD OF...

  • Page 39: Sound Level Characteristics

    SOUND LEVEL CHARACTERISTICS Outdoor units Unit Mic. Ground Figure 2 Sound Pressure Level Spectrum (Measured as Figure 2) DCI 50 Cooling DCI 50 Heating NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE APPROXIMATE THRESHOLD OF THRESHOLD OF HEARING FOR HEARING FOR NC-20...
  • Page 40 SOUND LEVEL CHARACTERISTICS Sound Pressure Level Spectrum (Measured as Figure 2) DCI 72Z Cooling DCI 72Z Heating DCI 72 / 80 Cooling DCI 72 / 80 Heating NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE APPROXIMATE THRESHOLD OF THRESHOLD OF HEARING FOR HEARING FOR...

  • Page 41: Electrical Data

    ELECTRICAL DATA ELECTRICAL DATA Single Phase Unit Model WNG 50 WNG 60 WNG 72 / 80 Power Supply 1 PH ,220-240VAC ,50HZ Connected to To indoor To outdoor Maximum Current 13.5A 15.7A 45 A <35A Inrush Current \ Starting Current\ 13.5 A 15.7A Circuit Breaker...

  • Page 42: Wiring Diagrams

    WIRING DIAGRAMS WIRING DIAGRAMS Indoor Unit: WNG 50 / 60 DCI Horizontal step motor Vertical step motor IFAN RAT ICT F resh A i r Ionizer capacitor 2uF 450V P11P15 ( red) P5(white) P8 ( Red) P6(White) P10(Red) Indoor unit controller PCB megatool Jumper PH-12...
  • Page 43 WIRING DIAGRAMS Indoor & Outdoor Units: WNG 72 DCI SM WNGDCI 2-E.4 GB CONTENTS...
  • Page 44 WIRING DIAGRAMS Outdoor Units: DCI 72Z SM WNGDCI 2-E.4 GB CONTENTS...
  • Page 45 WIRING DIAGRAMS Indoor & Outdoor Units: WNG 80 DCI SM WNGDCI 2-E.4 GB CONTENTS...

  • Page 46: Refrigeration Diagrams

    REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS Heat Pump Models 9.1.1 WNG 50, 60 / DCI 50, 60 Cooling Mode 9.1.2 WNG 50, 60 / DCI 50, 60 Heating Mode E E V SM WNGDCI 2-E.4 GB CONTENTS...

  • Page 47: Heating Mode

    REFRIGERATION DIAGRAMS 9.1.3 WNG 72, 80 / DCI 72, 72 Z, 80 OUTDOOR UNIT INDOOR UNIT Sensor Sensor Flared Valves connection Reverse valve Indoor coil Strainer Strainer Outdoor coil COOLING & DRY MODE OUTDOOR UNIT INDOOR UNIT Sensor Sensor Flared Valves connection Reverse...

  • Page 48: Electrical Connections

    ELECTRICAL CONNECTIONS ELECTRICAL CONNECTIONS 10.1 WNG 50, WNG 60 DCI ESF-PWR COOL ESF-EN HEAT RESET MODE 1. Indoor unit terminal 5. Multiple wire cable. 2. Ground wire. 6. Cable clamp. 3. Indoor coil. 7. Outdoor unit wire terminal. 4.Power cable in the indoor side. A.
  • Page 49 ELECTRICAL CONNECTIONS 10.2 WNG 72, WNG 80 DCI ESF-PWR COOL ESF-EN HEAT RESET MODE 1. Indoor unit terminal 5. Cable clamp. 2. Ground wire. 6. Outdoor unit wire terminal. 3. Indoor coil. 7. Power cable in the outdoor side 4. Multiple wire cable. (only for outdoor unit power supply) A.

  • Page 50: 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 51: Control System

    CONTROL SYSTEM CONTROL SYSTEM 12.1 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 52 CONTROL SYSTEM Target frequency limits as a function of outdoor air temperature (OAT): OAT Range Cooling Mode limits Heating Mode limits OAT < 6 No limit 6 ≤ OAT < 15 MaxFreqAsOATC MaxFreqAsOAT1H 15 ≤ OAT < 28 MaxFreqAsOAT2H 28≤ OAT No limit 12.1.3.2 Target Frequency Setting for DCI 72 / 80 The compressor Target Speed is calculated according to the following formula:...
  • Page 53 CONTROL SYSTEM 12.1.5.2 Compressor starting control for DCI72/80 Step 1 Whenever the compressor starts up, after it has been off for more than 45 minutes, the compressor frequency cannot go below Step1RPS for 3 continuous minutes (this rule comes to ensure oil return to the compressor).
  • Page 54 CONTROL SYSTEM OFAN Speed Compressor Routin Routin Routin Routin Target Frequency Freq=0 10 ≤ Freq < OFLowFreq OFLowFreq ≤ Freq< OFMedFreq Medium OFMedFreq≤ Freq High 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 3 minutes.

  • Page 55: Fan Mode

    CONTROL SYSTEM 12.1.9.2 EEV Control for DCI72/72Z/80 The target EEV value is the sum of open loop value (OL) and a result of the accumulative correction values (CV). ¦ The EEV intial value(OL) is defined as follow: = EEVBaseOpenLoop + EEVOpenLoopCpctyCrct + EEVTubeCompnst EEV tube Length Basic EEV open loop Open Loop correction...

  • Page 56: Cool Mode

    CONTROL SYSTEM 12.3 Cool Mode NLOAD is calculated according to the difference between actual room temperature and user set point temperature by PI control. In high/ medium/ low indoor fan user setting, unit will operate fan in selected speed. In AutoFan user setting, fan speed will be adjusted automatically according to the calculated NLOAD.

  • Page 57: Dry Mode

    CONTROL SYSTEM 12.6 Dry Mode As long as room temperature is higher then the set point, indoor fan will work in low speed and compressor 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.
  • Page 58 CONTROL SYSTEM 12.7.2.2 Indoor Coil Overheating Protection For WNG 72 / 80 ICT Trend <-2 -1,0,1 >2 ICT >62 60 ≤ ICT < 62 58≤ ICT <60 56≤ ICT < 58 54≤ ICT < 56 Norm Norm 52≤ ICT ≤ 54 Norm Norm Norm...
  • Page 59 CONTROL SYSTEM 12.7.3.2 Compressor Overheating Protection for DCI 72 / 80 CTT Trend Fast Fast Decreasing Increasing Cool Heat Decreasing Change Increasing CTT >105 CTT >105 100≤ CTT < 100≤ CTT < 98≤CTT <100 95≤CTT <100 93≤CTT < 100 85≤CTT < 95 90≤CTT ≤...
  • Page 60 CONTROL SYSTEM 12.7.5.2 Heat Sink Overheating Protection For DCI 72 / 80 Delta HST <-2 -1,0,1 >2 HST≥ 81 79 ≤ HST < 81 75 ≤ HST < 79 73≤ HST< 75 71 ≤ HST ≤ 73 Norm Norm Norm HST <...
  • Page 61 CONTROL SYSTEM Deicing Operation Procedure ► O C T T h re s h o ld C O M P D e ic e F re q C h R V m a x. 1 2 m in u te s H E A T C O O L O F A N...
  • Page 62 CONTROL SYSTEM Deicing Operation Procedure ► Threshold COMP max. 12 minutes HEAT COOL OFAN EEVDeicerOpen T1=50 secondes;T2=36 secondes;T3=6 secondes 12.7.8 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 63 CONTROL SYSTEM Overflow when Overflow when unit is ON unit is OFF Overflow Water Level Normal OPER BLINK NLOAD is NLOAD forced to 0 PUMP 8 min 8 min 8 min 12.8 Indoor Unit Dry Contact Indoor unit Dry contact has two alternative functions that are selected by J9. Function Contact=open Contact=short...
  • Page 64 CONTROL SYSTEM 12.10 On Unit Controls and Indicators 12.10.1 Indoor Unit controller Controls and Indicatiors for All Models Except for Floor/Ceiling model During OFF, Fan, Cool, Heat, Dry, and Auto modes (for operation in other modes, see at the relevant spec paragraph): 1.
  • Page 65 CONTROL SYSTEM 12.11 Test Mode 12.11.1 Entering Test Mode System can enter Test mode in two ways: Automatically when the following conditions exists for 30 minutes continuously: Mode = Cool, Set point = 16, Room temperature = 27(+1/−2), Outdoor temperature = 35(+2/-1) Mode = Heat, Set point = 30, Room temperature = 20±1, Outdoor temperature = 7±(+1/-2) Manually when entering diagnostics with the following settings: Mode = Cool, Set point = 16...
  • Page 66 CONTROL SYSTEM Model dependent parameters - DNG Unit DNG 50 DNG 60 DNG 72 DNG 80 Cap .Group NomLoadC NomLoadH ICTSTSpeed ICTVLSpeed ICTLSpeed ICTHSpeed ICTTSpeed MaxNLOADIF1C MaxNLOADIF2C MaxNLOADIF3C MaxNLOADIF4C MaxNLOADIF5C MinRTC MaxNLOADRTC MaxNLOADIF1H MaxNLOADIF2H MaxNLOADIF3H MaxNLOADIF4H MaxNLOADIF5H MaxNLOADRTH MaxRTH MaxNLOADPSC MaxNLOADPSH Model dependent parameters - WNG (WNG) Wall Mounted Models...
  • Page 67 CONTROL SYSTEM Model dependent parameters - PXD Unit PXD 50 PXD 60 PXD 72 PXD 80 Cap .Group NomLoadC NomLoadH MaxNLOADIF1C MaxNLOADIF2C MaxNLOADIF3C MaxNLOADIF4C MaxNLOADIF5C MinRTC MaxNLOADRTC MaxNLOADIF1H MaxNLOADIF2H MaxNLOADIF3H MaxNLOADIF4H MaxNLOADIF5H MaxNLOADRTH MaxRTH MaxNLOADPSC MaxNLOADPSH SM WNGDCI 2-E.4 GB 12-17 CONTENTS...
  • Page 68 CONTROL SYSTEM 12.12.2 Outdoor Units SW Parameters: Model dependent parameters for DCI50/60 Name Single DCI-50 Single DCI 60 1 MinFreqC MaxFreqC MinFreqH MaxFreqH NormAccel NormDecel Step1Freq Step2Freq Step3Freq 10 OFVL 11 OFLOWC 12 OFMEDC 13 OFMAXC 14 OFLOWH 15 OFMEDH 16 OFMAXH 17 OFANTESTMODEC 18 OFANTESTMODEH...
  • Page 69 CONTROL SYSTEM Model dependent parameters for DCI 72Z Name Single DCI 72Z MinFreqC MaxFreqC MinFreqH MaxFreqH Step1Freq Step2Freq Step3Freq OFMinRPM OFMaxRPM NightRPM OFNNoiseMaxRPM CTTOH1 CTTOH2 CTTOH3 CTTOH4 CCROC1 12.5 CCROC2 13.3 CCROC3 14.1 CCROC4 14.9 ProtFreqLimit EEVMinOperOpenC EEVMaxOperOpenC EEVMinOperOpenH EEVMaxOperOpenH HeaterDisableFlag HST Enable OATLimitC...
  • Page 70 CONTROL SYSTEM Model dependent parameters for DCI72/80 EEV Parameters Value Compressor Parameters Value NormEEVRate MinOFFTime EEVCompOFFOpen MinOnTime EEVCompOFFTime MaxCTT1 EEVMaxOpen MaxCTT2 EEVMinOperOpenC MinSpeedAsCTT1 EEVMaxOperOpenC MinSpeedAsCTT2 EEVMinOperOpenH MaxSpeedC EEVMaxOperOpenH MaxSpeedH EEVMinOperOpenHInIDU EEVMaxOperOpenHInIDU Step1RPS EEVIDUOFFOpen Step2RPS EEVMoveSteps Step3RPS EEVTConstC NormAcc (sec/RPS) EEVTConstH NormDec (sec/RPS) BlncTimTrnsStC Down1(Sec/RPS)

  • Page 71: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING 13.1 Troubleshooting for DCI 50 / 60 / 72Z 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 Power!!! When turned off, the system is still charged (400V)!!! It takes about 3 Min.
  • Page 72 TROUBLESHOOTING Symptom Probable Cause Corrective Action Check RV power connections, if Unit works in wrong mode Electronics or power (cool instead of heat or check RV operation with direct connection to RV heat instead of cool) 230VAC power supply, if OK, replace outdoor controller.
  • Page 73 TROUBLESHOOTING 13.1.3 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 LED’s. 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 74 TROUBLESHOOTING 13.1.4.1 Indoor Unit Diagnostics and Corrective Actions Fault Probable Cause Corrective Action Sensor failures of Check sensor connections or all types replace sensor Indoor and Outdoor Communication controllers are with Replace Indoor controller mismatch different versions Communication or Check Indoor to Outdoor No Communication grounding wiring is not wiring and grounding...
  • Page 75 TROUBLESHOOTING Fault Probable Cause Corrective Action Check the voltage - If there is no voltage between indoor fan replace main P.C.B terminals on the main P.C.B. The outdoor fan There is voltage between - Replace capacitor or motor. does not function outdoor fan terminals on correctly.
  • Page 76 TROUBLESHOOTING Fault Probable Cause Corrective Action - Overload safety device on compressor is cut - Check for proper voltage, out (low voltage or high switch off power and try No cooling or temperature) again after one hour. heating takes place, indoor - Compressor run - Replace compressor and outdoor fans...
  • Page 77 TROUBLESHOOTING 13.1.5 Outdoor Unit Diagnosits 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 78 TROUBLESHOOTING 13.1.6 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: Setup MegaTool software: copy the software to the computer. Connect RS232C port in computer with MegaTool port in Indoor/Outdoor unit controller by the connection wire.
  • Page 79 TROUBLESHOOTING 13.1.8 Precaution, Advise and Notice Items 13.1.8.1 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 80 TROUBLESHOOTING 13.2 Troubleshooting for DCI 72 / 80 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 Power!!! When turned off, the system is still charged (400V)!!! It takes about 1 Min.
  • Page 81 TROUBLESHOOTING Symptom Probable Cause Corrective Action Check the connections No power supply and the wiring on the main terminal - Repair if needed. Outdoor unit display board and leds are off PFC Chock coil Check the PFC Chock coil Burnt fuse Check 20A fuse on the Filter EEV problem Check EEV...
  • Page 82 TROUBLESHOOTING Symptom Probable Cause Corrective Action Other home appliances operation is faulty such as noise appears EMC interference by in the television picture, or the Check for EMC problems the A/C unit picture is distorted or static occurs in the radio sound Specific problems of All others Check diagnostics...
  • Page 83 TROUBLESHOOTING Problem OCT bad CTT bad HST bad OAT bad OMT bad RGT bad OFAN/Compressor Feedback Loss OFAN- IPM fault OFAN Lock OFAN- Vospd exceeded Compressor- IPM Fault Compressor Lock Compressor- Vospd exceeded Compressor- Foldback DC under voltage DC over voltage AC under voltage No communication A reserved...
  • Page 84 TROUBLESHOOTING 13.2.3.2 Outdoor fault corrective actions Fault Name Probable Cause Corrective Action OCT bad CTT bad HST bad Thermistor not connected or Check Thermistor damaged OAT bad TSUC bad RGT bad OFAN halls or wires bad. OFAN/Compressor Check OFAN motor and Compressor wire cable bad or Feedback Loss compressor...
  • Page 85 TROUBLESHOOTING Fault Name Probable Cause Corrective Action No communication A No signals in line A Check communication Compressor- Ilegal Exceeds speed low limit See # 13 Speed System Configuration Communication lines changed No problem just an Changed from last operation announcement Miss-match between the IDUs connected to port A,B,C or D,...
  • Page 86 TROUBLESHOOTING 13.2.4 Fault Code for Indoor unit Pressing Mode button for long will activate diagnostic mode by the acknowledgment of 3 short beeps and lighting of COOL and HEAT LED’s. Entering diagnostics in STBY mode allows only viewing of status (fault-display). In diagnostic mode, system problems / information will be indicated by blinking of Heat &...
  • Page 87 TROUBLESHOOTING 13.2.4.1 Indoor unit diagnostics and corrective actions Fault Probable Cause Corrective Action Sensors not connected or Check sensor connections Sensor failures damaged or replace sensor Communication Indoor and Outdoor controllers Replace Indoor controller mismatch are with different versions Communication or grounding Check Indoor to Outdoor No Communication wiring is not good...
  • Page 88 TROUBLESHOOTING 13.2.5.4 Checking the Outdoor Fan Motor Check FAN-Power and FAN-Halls connections - Repair if needed. Rotate the fan slowly by hand. If the fan does not rotate easily, check whether something is obstructing the fan, or if the fan itself is coming into contact with the outer case, preventing it from rotating. Correct if necessary - otherwise, the fan motor bearings have seized.
  • Page 89 TROUBLESHOOTING 13.2.5.10 Checking for electromagnetic interferance (EMC problems) EMC troubles to the A/C unit Locations most susceptible to noise : 1. Locations near broadcast stations where there are strong electromagnetic waves. 2. Locations near amateur radio (short wave) stations. 3. Locations near electronic sewing machines and arc-welding machines. Trouble : Either of the following trouble may occur: 1.
  • Page 90 TROUBLESHOOTING 13.2.6.3 Advise: Open the Outdoor unit controller cover only after one minute from power off. Measure the electrolytic capacitors voltage before farther checking controller. Additional advises When disassemble the controller or the front panel, turn off the power supply. When connecting or disconnecting the connectors on the PCB, hold the whole housing, don’t pull the wire, there are sharp fringes and sting on shell.

  • Page 91: Exploded Views And Spare Parts Lists

    EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS 14.1 Indoor Unit: WNG 50, WNG 60 DCI 14-1 SM WNGDCI 2-E.4 GB CONTENTS...
  • Page 92 EXPLODED VIEWS AND SPARE PARTS LISTS 14.2 Intdoor Unit: WNG 50, WNG 60 DCI Item No. Part No. Description 452917400 Grill A/WNG18 452952800 Grill B/WNG18 452952900 Grill C/WNG18 453080400 Display Board Assy.906-257-00 452919800 Filter 4518113 Fiber Filter Assy. (Optional) 453054000 Frame assy./WNG18 4526946 Display Lens Assy(LCD)
  • Page 93 EXPLODED VIEWS AND SPARE PARTS LISTS 14.3 Outdoor Unit: ONG3-50 DCI 14-3 SM WNGDCI 2-E.4 GB CONTENTS...
  • Page 94 EXPLODED VIEWS AND SPARE PARTS LISTS 14.4 Outdoor Unit: ONG3-50 DCI ItemNo. Part No. Description 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 95 EXPLODED VIEWS AND SPARE PARTS LISTS 14.5 Outdoor Unit: DCI 60 14-5 SM WNGDCI 2-E.4 GB CONTENTS...
  • Page 96 EXPLODED VIEWS AND SPARE PARTS LISTS 14.6 Outdoor Unit: DСI 60 Item No. Part No. Description 4517144 FAN COVER PP+UV 452795700 PAINTED LEFT CABINET ASSY 4521642 Painted Right Cabinet and Isolation Assy. 4523141 M10 Hexagon locked nut M10 4526841 cusion for fan 4526510 FAN D=460mm (3 blade) 453026500...
  • Page 97 EXPLODED VIEWS AND SPARE PARTS LISTS 14.7 Indoor Unit: WNG 72 DCI 14-7 SM WNGDCI 2-E.4 GB CONTENTS...
  • Page 98 EXPLODED VIEWS AND SPARE PARTS LISTS 14.8 Indoor Unit: WNG 72 DCI Item No. Part No. Description Qty. 452917400 Grille 452919800 Air Filter 4518113 Active Carrbon(Cold Catalyst) Filter 465720009 Frame Asy 452919600 Screw Cover 453260400 Evaporator Assy 4522754 Draining Hose 453053900 Air Outlet Assy 452917500...
  • Page 99 EXPLODED VIEWS AND SPARE PARTS LISTS 14.9 Indoor Unit: WNG 80 DCI 14-9 SM WNGDCI 2-E.4 GB CONTENTS...
  • Page 100 EXPLODED VIEWS AND SPARE PARTS LISTS 14.10 Indoor Unit: WNG 80 DCI Item No. Part No. Description 4525902 GRILLE ASSY 4523299 FILTER 4523303 SHAFT LOCKER 4518113 AIR FILTER ASSY 4525610 FRAME ASSY 4523301 SCREW COVER 4523302 FIX LOCKER 462350007 EVAPORATOR ASSY WNG80 R410A 4525112 DISPLAY ASSY.
  • Page 101 EXPLODED VIEWS AND SPARE PARTS LISTS 14.11 Outdoor Unit: DCI 72, DCI 80 14-11 SM WNGDCI 2-E.4 GB CONTENTS...

  • Page 102: Exploded Views And Spare Parts Lists

    EXPLODED VIEWS AND SPARE PARTS LISTS 14.12 Outdoor Unit: DCI 72, DCI 80 Item No. Part No. Description 465100000 Outlet Grille 4523652 Painted Left Cabinet Assy. 452960400 Outdoor Fan 466130001 Motor 452888500 Motor Support 452809900 Base Plate Painting Assy. 452809700 Partition Plate 4526774 Outdoor air thermistor(OAT)
  • Page 103 EXPLODED VIEWS AND SPARE PARTS LISTS 14.13 Outdoor Unit: DCI 72 Z 14-13 SM WNGDCI 2-E.4 GB CONTENTS...

  • Page 104: Outdoor Units Dci

    EXPLODED VIEWS AND SPARE PARTS LISTS 14.14 Outdoor Unit: DCI 72 Z Item Description Quan. 465100000 Grill/ DCI Trio 4523652 PAINTED LEFT CABINET ASSY 4523758 Nut M8 left 452960400 Outdoor Fan 461600023 4-Way Valve Assy. 4522509 4-way Valve Coil 4526522 FOUR-WAY VALVE R410A 466130002R DC Motor 70W 8P...

  • Page 105: Appendix A

    APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► INSTALLATION & OPERATING MANUAL WNG 50 / 60 DCI ► INSTALLATION & OPERATING MANUAL WNG 72 / 80 DCI SM WNGDCI 2-E.4 GB 15-1 CONTENTS...

This manual is also suitable for:

Dci 60Dci 72Dci 72zWng 72 dciDci 80Wng 80 dci

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