Service manual

ManualsBrandsElectra ManualsHeat PumpWNG 21

WNG DC Inverter Series

Indoor Units Outdoor Units

WNG 50 DCI DCI 50

WNG 60 DCI DCI 60

WNG 72 DCI

DCI 72

DCI 72 Z

WNG 80 DCI DCI 80

NOVEMBER − 2008

REFRIGERANT

R410A

HEAT PUMP

SM WNGDCI 2-E.4 GB

CONTENTS

Summary of content (105 pages)

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WNG DC Inverter Series Indoor Units WNG 50 DCI WNG 60 DCI WNG 72 DCI WNG 80 DCI Outdoor Units DCI 50 DCI 60 DCI 72 DCI 72 Z DCI 80 REFRIGERANT R410A SM WNGDCI 2-E.
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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. Dates of issue for original and changed pages are: Original ....... 0 ........September 2006 Total number of pages in this publication is 107 consisting of the following: Page No. Revision No. # Page No. Revision No.
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TABLE OF CONTENTS Table of Contents 1. INTRODUCTION ...................................................................................................1-1 2. PRODUCT DATA SHEET ......................................................................................2-1 3. RATING CONDITIONS ..........................................................................................3-1 4. OUTLINE DIMENSIONS .......................................................................................4-1 5.
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INTRODUCTION 1. INTRODUCTION 1.1 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. 1.2 Main Features The WNG DCI series beneﬁts from the most advanced technological innovations, namely: ● DC inverter technology. ● R410A. ● High COP.
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INTRODUCTION 1.3 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 Display WNG 72 / 80 LCD or LED LCD Ionizer YES ESF YES Fresh air 1.
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INTRODUCTION 1.7 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. Outdoor Unit Feature Feature 1.
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INTRODUCTION 1.11 Matching Table 1.11.1 R410A INDOOR UNITS OUTDOOR UNITS MODEL REFR” DCI 50 R410A DCI 60 R410A DCI 72 DCI 72Z DCI 80 WNG 50 DCI WNG 60 DCI WNG 72 DCI WNG 80 DCI √ √ √ R410A √ R410A SM WNGDCI 2-E.
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PRODUCT DATA SHEET 2. PRODUCT DATA SHEET 2.
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PRODUCT DATA SHEET 2.2 WNG 60 DCI Model Indoor Unit WNG-60 Model Outdoor Unit Installation Method of Pipe Characteristics DCI60 Flared Capacity (1) Power input (1) OUTDOOR INDOOR EER (Cooling) or COP(Heating) (1) Energy efﬁciency class Power supply Rated current Starting current Circuit breaker rating Fan type & quantity Fan speeds Air ﬂow (2) External static pressure Sound power level (3) Sound pressure level(4) Moisture removal Condenstate drain tube I.
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PRODUCT DATA SHEET 2.3 WNG 72 DCI Model Indoor Unit WNG-DCI 72 Model Outdoor Unit Installation Method of Pipe Characteristics GC-DCI 72 Flared Capacity (1) OUTDOOR INDOOR Power input (1) EER (Cooling) or COP(Heating) (1) Energy efﬁciency class Power supply Rated current Starting current Circuit breaker rating Fan type & quantity Fan speeds H/M/L Air ﬂow (2) H/M/L External static pressure Min-Max Sound power level (3) H/M/L Sound pressure level (4 ) H/M/L Moisture removal Condenstate drain tube I.
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PRODUCT DATA SHEET 2.
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PRODUCT DATA SHEET 2.5 WNG 80 DCI Model Indoor Unit Model Outdoor Unit WNG- 80 DCI 80 Installation Method of Pipe Characteristics Flared Capacity (1) OUTDOOR INDOOR Power input (1) EER (Cooling) or COP(Heating) (1) Energy efﬁciency class Power supply Rated current Starting current Circuit breaker rating Fan type & quantity Fan speeds H/M/L Air ﬂow (2) H/M/L External static pressure Min-Max (3) Sound power level H/M/L Sound pressure level(4) H/M/L Moisture removal Condensate drain tube I.
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RATING CONDITIONS 3. RATING CONDITIONS Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units). Cooling: Indoor: 27oC DB 19oC WB Outdoor: 35 oC DB Heating: Indoor: 20oC DB Outdoor: 7oC DB 6oC WB 3.1 Operating Limits 3.1.1 R410A Indoor Cooling Heating Outdoor Upper limit 32oC DB 23oC WB 46oC DB Lower limit 21oC DB 15oC WB -10oC DB Upper limit 27oC DB 24oC DB 18oC WB Lower limit 10oC DB -15oC DB -16oC WB 198 – 264 V Voltage 3-1 SM WNGDCI 2-E.
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OUTLINE DIMENSIONS 4. OUTLINE DIMENSIONS 4.1 Indoor Unit: WNG 50 / 60 / 72 DCI 4.2 Outdoor Unit: DCI 50 4-1 SM WNGDCI 2-E.
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OUTLINE DIMENSIONS 4.3 Outdoor Unit: DCI 60 4.4 Indoor Unit: WNG 80 4-2 SM WNGDCI 2-E.
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OUTLINE DIMENSIONS 4.5 Outdoor Unit: DCI 72 / 72 Z / 80 4-3 SM WNGDCI 2-E.
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PERFORMANCE DATA & PRESSURE CURVES 5. PERFORMANCE DATA 5.1 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 [0C] OD COIL ENTERING AIR DB TEMPERATURE [0C] DATA TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI -10 - 20 (protection range) 25 30 35 40 46 22/15 24/17 27/19 29/21 32/23 4.93 4.10 1.10 4.67 3.94 1.26 4.42 3.78 1.41 4.17 3.62 1.56 3.86 3.43 1.
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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 [0C] OD COIL ENTERING AIR DB/WB TEMPERATURE [0C] DATA 15 20 25 TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI 2.73 1.16 3.60 1.31 4.26 1.43 4.59 1.48 4.81 1.52 6.39 1.58 6.72 1.61 7.06 1.64 2.34 1.24 3.21 1.40 3.87 1.51 4.19 1.57 4.41 1.60 6.00 1.66 6.33 1.69 6.66 1.72 85 - 105 % of nominal 80 - 120 % of nominal 1.94 1.33 2.82 1.48 3.47 1.59 3.
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PERFORMANCE DATA & PRESSURE CURVES 5.2 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 [0C] OD COIL ENTERING AIR DB TEMPERATURE [0C] DATA TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI -10 - 20 (protection range) 25 30 35 40 (Protection Range) 46 (Protection Range) 22/15 24/17 27/19 29/21 32/23 5.91 4.64 1.50 5.61 4.46 1.71 5.30 4.28 1.92 5.00 4.10 2.13 4.64 3.88 2.
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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 [0C] OD COIL ENTERING AIR DB/WB TEMPERATURE [0C] -15/-16 -10/-12 -7/-8 -1/-2 2/1 7/6 10/9 15/12 15-24 (Protection Range) DATA 15 20 25 TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI 2.96 1.33 3.90 1.50 4.61 1.63 4.97 1.70 5.21 1.74 6.93 1.81 7.28 1.84 7.64 1.87 2.53 1.42 3.48 1.60 4.19 1.73 4.54 1.79 4.78 1.84 2.11 1.52 3.05 1.69 3.76 1.82 4.12 1.
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PERFORMANCE DATA & PRESSURE CURVES 5.3 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 [0C] OD COIL ENTERING AIR DB TEMPERATURE [0C] 22/15 DATA -10 - 20 (protection range) 25 30 35 40 (Protection Range) 46 (Protection Range) 24/17 27/19 29/21 TC 80 - 110 % of nominal SC 80 - 105 % of nominal PI 25 - 50 % of nominal 32/23 TC 6.70 7.09 7.49 7.88 8.28 SC 5.04 5.12 5.19 5.27 5.34 PI 1.70 1.74 1.
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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 [0C] OD COIL ENTERING AIR DB/WB TEMPERATURE [0C] -15/-16 -10/-12 -7/-8 -1/-2 2/1 7/6 10/9 15/12 15-24 (Protection Range) DATA 15 20 25 TC 3.46 2.96 2.46 PI 1.64 1.76 1.88 TC 4.57 4.07 3.57 PI 1.86 1.98 2.09 TC 5.40 4.90 4.40 PI 2.02 2.14 2.25 TC 5.81 5.31 4.81 PI 2.10 2.22 2.33 TC 6.09 5.59 5.09 PI 2.15 2.27 2.39 TC 8.
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PERFORMANCE DATA & PRESSURE CURVES 5.4 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 [0C] OD COIL ENTERING AIR DB TEMPERATURE [0C] 22/15 DATA -10 - 20 (protection range) 25 30 35 40 (Protection Range) 46 (Protection Range) 24/17 27/19 29/21 TC 80 - 110 % of nominal SC 80 - 105 % of nominal PI 25 - 50 % of nominal 32/23 TC 6.70 7.09 7.49 7.88 8.28 SC 5.04 5.12 5.19 5.27 5.34 PI 1.70 1.
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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 [0C] OD COIL ENTERING AIR DB/WB TEMPERATURE [0C] -15/-16 -10/-12 -7/-8 -1/-2 2/1 7/6 10/9 15/12 15-24 (Protection Range) DATA 15 20 25 TC 3.21 2.75 2.28 PI 1.53 1.64 1.75 TC 4.23 3.77 3.31 PI 1.73 1.84 1.95 TC 5.00 4.54 4.08 PI 1.88 1.99 2.10 TC 5.39 4.93 4.47 PI 1.96 2.07 2.17 TC 5.65 5.18 4.72 PI 2.01 2.12 2.22 TC 7.
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PERFORMANCE DATA & PRESSURE CURVES 5.5 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 [0C] OD COIL ENTERING AIR DB TEMPERATURE [0C] DATA TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI -10 - 20 (protection range) 25 30 35 40 (Protection Range) 46 (Protection Range) 22/15 24/17 27/19 29/21 32/23 7.68 6.41 1.96 7.29 6.16 2.23 6.90 5.91 2.50 6.50 5.66 2.77 6.03 5.36 3.
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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 [0C] OD COIL ENTERING AIR DB/WB TEMPERATURE [0C] -15/-16 -10/-12 -7/-8 -1/-2 2/1 7/6 10/9 15/12 15-24 (Protection Range) DATA 15 20 25 TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI TC PI 3.87 1.85 5.11 2.09 6.03 2.28 6.50 2.37 6.81 2.43 9.06 2.52 9.53 2.57 10.00 2.61 3.31 1.99 4.55 2.23 5.48 2.41 5.94 2.50 6.25 2.56 2.75 2.12 3.99 2.36 4.92 2.54 5.38 2.
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PERFORMANCE DATA & PRESSURE CURVES 5.6 Capacity Correction Factor Due to Tubing Length 5.6.1 WNG 50/60/72/80 DCI: Cooling 1.02 Capacity ratio 1.00 0.98 0.96 0.94 0.92 0.90 0.88 0.86 4 6 8 10 12 14 16 18 20 22 24 26 20 22 24 26 28 30 Tubing length(m) Heating Capacity ratio 5.6.2 1.02 1.00 0.98 0.96 0.94 0.92 0.90 0.88 0.86 0.84 4 6 8 10 12 14 16 18 28 30 Tubing Length(m) SM WNGDCI 2-E.
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PERFORMANCE DATA & PRESSURE CURVES 5.7 Pressure Curves 5.7.1. Model: WNG 50 DCI / DCI 50 Cooling — Test Mode Suction Pressure VS.Outdoor Temp. Suction Pressure [kPa] 1100 1000 900 Indoor DB/WB Tem p' 800 22/ 15 24/ 17 700 27/ 19 29/ 21 600 32/ 23 500 10 15 20 25 30 35 40 45 Outdoor DB Temperature[ºC ] Discharge Pressure VS. Outdoor Temp.
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PERFORMANCE DATA & PRESSURE CURVES 5.7.2. Heating — Test Mode Suction Pressure VS.Outdoor Temp. Suction Pressure [kPa] 1100 1000 900 Indoor DB 800 700 15 20 600 25 500 400 300 200 -15 -10 -5 0 5 10 15 Outdoor WB Temperature[ºC ] Discharge Pressure VS. Outdoor Temp. Discharge Pressure [kPa] 4000 3500 Indoor DB 3000 15 2500 20 25 2000 1500 1000 -15 -10 -5 0 5 10 15 Outdoor WB Temperature SM WNGDCI 2-E.
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PERFORMANCE DATA & PRESSURE CURVES Model: WNG 60 DCI / DCI 60 Cooling — Test Mode. 5.7.3 Suction Pressure VS.Outdoor Temp. Suction Pressure [kPa] 1100 1000 900 Indoor DB/WB Tem p' 800 22/ 15 24/ 17 700 27/ 19 29/ 21 600 32/ 23 500 10 15 20 25 30 35 40 45 Outdoor DB Temperature[ºC ] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp.
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PERFORMANCE DATA & PRESSURE CURVES 5.7.4 Heating — Test Mode Suction Pressure VS.Outdoor Temp. Suction Pressure [kPa] 1100 1000 900 800 Indoor DB 700 15 20 25 600 500 400 300 200 -15 -10 -5 0 5 10 15 Outdoor WB Temperature[ºC ] Discharge Pressure VS. Outdoor Temp. Discharge Pressure [kPa] 4000 3500 3000 Indoor DB 15 2500 20 25 2000 1500 1000 -15 -10 -5 0 5 10 15 Outdoor WB Temperature [ºC ] SM WNGDCI 2-E.
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PERFORMANCE DATA & PRESSURE CURVES Model: WNG 72 DCI / DCI 72 Cooling — Test Mode. 5.7.5 Suction Pressure VS. Outdoor Temp. Suction Pressure [kPa] 1200 1100 Indoor DB/WB Temp. 1000 900 22/15 24/17 27/19 29/21 32/23 800 700 600 10 15 20 25 30 35 40 45 o Outdoor DB Temperature [ C] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp. 4000 Indoor DB/WB Temp.
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PERFORMANCE DATA & PRESSURE CURVES 5.7.6 Heating — Test Mode Suction Pressure VS. Outdoor Temp. Suction Pressure [kPa] 1200 1100 1000 900 800 Indoor DB 700 15 20 25 600 500 400 300 -15 -10 -5 0 5 10 15 o Outdoor WB Temperature[ C] Discharge Pressure VS. Outdoor Temp. Discharge Pressure [kPa] 4000 3500 Indoor DB 3000 15 20 25 2500 2000 1500 -15 -10 -5 0 5 10 15 Outdoor WB Temperature[oC] SM WNGDCI 2-E.
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PERFORMANCE DATA & PRESSURE CURVES Model: WNG 72 DCI / DCI 72Z Cooling — Test Mode. 5.7.7 Suction Pressure [kPa] Suction Pressure vs. Outdoor Temperature 1000 Indoor DB/WB 900 22/15 24/17 27/19 29/21 32/23 800 700 600 10 15 20 25 30 35 40 45 Outdoor DB Temperature Discharge Pressure [kPa] Discharge Pressure vs.
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PERFORMANCE DATA & PRESSURE CURVES 5.7.8 Heating — Test Mode Suction Pressure [kPa] Suction Pressure vs. Outdoor Temperature 1200 1100 1000 900 800 700 600 500 400 300 Indoor DB 15 20 25 -15 -10 -5 0 5 10 15 Outdoor WB Temperature Discharge Pressure [kPa] Discharge Pressure vs. Outdoor Temperature 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500 Indoor DB 15 20 25 -15 -10 -5 0 5 Outdoor WB Temperature SM WNGDCI 2-E.
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PERFORMANCE DATA & PRESSURE CURVES Model: WNG 80 DCI / DCI 80 Cooling — Test Mode. 5.7.9 Suction Pressure VS.Outdoor Temp. Suction Pressure [kPa] 1100 1000 Indoor 900 DB/WB Tem p' 800 22/ 15 24/ 17 27/ 19 29/ 21 700 32/ 23 600 10 15 20 25 30 35 40 45 Outdoor DB Temperature[ºC ] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp. 4000 3500 Indoor DB/WB Tem p.
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PERFORMANCE DATA & PRESSURE CURVES 5.7.10 Heating — Test Mode Suction Pressure VS.Outdoor Temp. Suction Pressure [kPa] 1100 1000 900 800 Indoor DB 700 15 20 600 25 500 400 300 200 -15 -10 -5 0 5 10 15 Outdoor WB Temperature[ºC ] Discharge Pressure [kPa] Discharge Pressure VS. Outdoor Temp. 4000 3750 3500 3250 3000 2750 2500 2250 2000 1750 1500 1250 1000 -15 Indoor DB 15 20 25 -10 -5 0 5 10 15 Outdoor WB Temperature[ºC ] SM WNGDCI 2-E.
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SOUND LEVEL CHARACTERISTICS 6. SOUND LEVEL CHARACTERISTICS 6.1 Sound Pressure Level Unit 1m Wall 0.8m FAN SPEED LINE HI Mic. ME LO Figure 1 6.2 Sound Pressure Level Spectrum (Measured as Figure 1) WNG 60 NC-70 NC-60 NC-50 NC-40 NC-30 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC-20 OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.
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SOUND LEVEL CHARACTERISTICS 6.3 Outdoor units Unit 1m Mic. Ground Figure 2 6.4 Sound Pressure Level Spectrum (Measured as Figure 2) DCI 50 Heating NC-70 NC-60 NC-50 NC-40 NC-30 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC-20 OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.
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SOUND LEVEL CHARACTERISTICS DCI 72Z Cooling DCI 72Z Heating DCI 72 / 80 Cooling DCI 72 / 80 Heating NC-70 NC-60 NC-50 NC-40 NC-30 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC-20 OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.
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ELECTRICAL DATA 7. ELECTRICAL DATA 7.1 Single Phase Unit Model Power Supply Connected to Maximum Current Inrush Current \(a) Starting Current\(b) Circuit Breaker Power Supply Interconnecting cable WNG 50 WNG 60 WNG 72 / 80 1 PH ,220-240VAC ,50HZ To indoor To outdoor 13.5A 15A 15.7A 45 A <35A 13.5 A 15A 15.7A 20 A 3 X 2.5 mm² 4 X 2.5 mm² (a) Inrush current is the current when power is up (charging the DC capacitors at outdoor unit controller).
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WIRING DIAGRAMS 8. WIRING DIAGRAMS 8.
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WIRING DIAGRAMS Indoor & Outdoor Units: WNG 72 DCI OUTDOOR UNIT INDOOR UNIT 8.3 8-2 SM WNGDCI 2-E.
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WIRING DIAGRAMS Outdoor Units: DCI 72Z CHOKE COIL REVERSE BASE HEATER U V W P 13 P3 P9 P11 VALVE BLUE OFAN (OPTIONAL) 1 2 3 4 5 6 1 2 P4 P14 1 2 P1 1 2 1 2 1 2 1 2 1 2 P19 P20 P2 P8 P5 1 P6 ODU CONTROLLER PCBA P10 L N COM N-COM P7 6 5 4 3 2 1 JP9 1 2 3 4 5 6 P12 EARTH Y/ G FERRITE CORE OCT CTT OAT OMT HST EEV AC MAINS EMI FILTER PCBA EARTH EARTH BLACK RED BLUE BROWN NCOM COM N-F L-F COM N L L FUSE N RED BROWN BLUE RED BROWN BLUE L N C L N BLK BRN RED COMP WHITE 8.
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WIRING DIAGRAMS Indoor & Outdoor Units: WNG 80 DCI OUTDOOR UNIT INDOOR UNIT 8.5 8-4 SM WNGDCI 2-E.
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REFRIGERATION DIAGRAMS 9. REFRIGERATION DIAGRAMS 9.1 Heat Pump Models 9.1.1 WNG 50, 60 / DCI 50, 60 Cooling Mode EEV 9.1.2 WNG 50, 60 / DCI 50, 60 Heating Mode EEV 9-1 SM WNGDCI 2-E.
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REFRIGERATION DIAGRAMS 9.1.3 WNG 72, 80 / DCI 72, 72 Z, 80 OUTDOOR UNIT INDOOR UNIT Sensor Compressor Sensor Reverse valve Valves Flared connection Indoor coil EEV Outdoor coil Strainer Strainer COOLING & DRY MODE OUTDOOR UNIT INDOOR UNIT Sensor Compressor Sensor Reverse valve Valves Indoor coil EEV Outdoor coil Strainer Flared connection Strainer HEATING MODE 9-2 Revision Y07 CONTENTS SM WNGDCI 2-E.
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ELECTRICAL CONNECTIONS 10. ELECTRICAL CONNECTIONS 10.1 WNG 50, WNG 60 DCI 1 ESF-PWR 3 COOL ESF-EN HEAT RESET MODE 5/C 4/L N L 2 4 N 4/L 5/C 7 A B 6 5 1. Indoor unit terminal 2. Ground wire. 3. Indoor coil. 4.Power cable in the indoor side. 5. Multiple wire cable. 6. Cable clamp. 7. Outdoor unit wire terminal. A. OUTDOOR B. INDOOR 10-1 SM WNGDCI 2-E.
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ELECTRICAL CONNECTIONS 10.2 WNG 72, WNG 80 DCI 1 ESF-PWR 3 COOL ESF-EN HEAT RESET MODE 5/C 4/L N L 2 7 N 4/L 5/C 6 A B 5 4 1. Indoor unit terminal 2. Ground wire. 3. Indoor coil. 4. Multiple wire cable. A. OUTDOOR B. INDOOR 5. Cable clamp. 6. Outdoor unit wire terminal. 7. Power cable in the outdoor side (only for outdoor unit power supply) 10-2 SM WNGDCI 2-E.
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TUBING CONNECTIONS 11. TUBING CONNECTIONS TUBE (Inch) ¼” ⅜” ½” ⅝” ¾” 11-13 13-20 11-13 40-45 13-20 11-13 60-65 18-25 11-13 70-75 18-25 11-13 80-85 40-50 11-13 TORQUE (Nm) Flare Nuts Valve Cap Service Port Cap 1. 2. 3. 4. 5. 6. 7. 8.
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CONTROL SYSTEM 12. 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. 12.1.1 System Operation Concept The control function is divided between indoor and outdoor unit controllers.
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CONTROL SYSTEM Target frequency limits as a function of outdoor air temperature (OAT): OAT Range Cooling Mode limits OAT < 6 Heating Mode limits No limit 6 ≤ OAT < 15 MaxFreqAsOATC 15 ≤ OAT < 28 28≤ OAT MaxFreqAsOAT1H MaxFreqAsOAT2H No limit 12.1.3.
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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). Step 2 The compressor speed cannot go above Step2RPS once after each compressor start up for 3 continuous minutes (this rule comes to prevent oil exit from the compressor after its start up).
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CONTROL SYSTEM OFAN Speed Compressor Target Frequency Routin A Routin B Routin C Routin D Freq=0 OFF OFF OFF OFF 10 ≤ Freq < OFLowFreq Low Low VL Low OFLowFreq ≤ Freq< OFMedFreq Medium Low VL Low OFMedFreq≤ Freq High Low Low Medium When compressor is switched to OFF and the heat sink temperature is above 55 degrees, the outdoor fan will remain ON in low speed for up to 3 minutes.
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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).
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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. 12.4 Heat Mode NLOAD is calculated according to the difference between actual room temperature and user set point temperature by PI control.
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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. 12.7 Protections There are 5 protection codes. Normal (Norm) – unit operate normally. Stop Rise (SR) – compressor frequency can not be raised but does not have to be decreased.
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CONTROL SYSTEM 12.7.2.2 Indoor Coil Overheating Protection For WNG 72 / 80 ICT Trend ICT <-2 -2 -1,0,1 2 >2 ICT >62 SC SC SC SC SC 60 ≤ ICT < 62 D1 D1 D2 D2 D2 58≤ ICT <60 SR SR D1 D2 D2 56≤ ICT < 58 SR SR SR D1 D2 54≤ ICT < 56 Norm Norm SR SR D1 52≤ ICT ≤ 54 Norm Norm Norm SR SR ICT <52 12.7.3 Norm Compressor Overheating Protection 12.7.3.
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CONTROL SYSTEM 12.7.3.2 Compressor Overheating Protection for DCI 72 / 80 CTT Trend CTT Fast Decreasing Decreasing No Change Increasing Fast Increasing CTT >105 100≤ CTT < 105 95≤CTT <100 SC SC SC SC SC D1 D1 D2 D2 D2 SR SR D1 D2 D2 93≤CTT < 100 85≤CTT < 95 SR SR SR D1 D1 90≤CTT ≤ 93 80≤CTT ≤ 85 Norm Norm Norm SR SR CTT <90 CTT <80 Cool Heat CTT >105 100≤ CTT < 105 98≤CTT <100 12.7.
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CONTROL SYSTEM 12.7.5.2 Heat Sink Overheating Protection For DCI 72 / 80 Delta HST HST <-2 -2 -1,0,1 2 >2 HST≥ 81 SC SC SC SC SC 79 ≤ HST < 81 D1 D1 D2 D2 D2 75 ≤ HST < 79 SR SR D1 D2 D2 73≤ HST< 75 SR SR SR D1 D1 71 ≤ HST ≤ 73 Norm Norm Norm SR SR HST < 71 12.7.
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CONTROL SYSTEM Deicing Operation Procedure ► OCT 12 0 T h re s h o ld COMP ON T1 T2 DT m a x. 1 2 m in u te s D e ic e F re q C h R V RV HEAT COOL O FAN T1 T3 T3 ON OFF EEV E E V D e ic e rO p e n Any T1=60 secondes;T2=36 secondes;T3=6 secondes 12.7.7.2 Outdoor coil Deicing Protection For DCI 72 / 80 Entering Deicing Conditions Deicing operation will start when either one of the following conditions exist: Case 1: OCT < OAT – 8 AND TLD > DI Case 2: OCT < OAT – 12 AND TLD > 30 minutes.
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CONTROL SYSTEM Deicing Operation Procedure ► OCT 12 0 Threshold COMP ON T1 T2 T1 max. 12 minutes DT HEAT RV T3 COOL OFAN T3 ON OFF EEVDeicerOpen EEV Any T1=50 secondes;T2=36 secondes;T3=6 secondes 12.7.
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CONTROL SYSTEM Overflow when unit is ON Overflow Water Level Overflow when unit is OFF Normal ON OPER LED OFF BLINK ANY NLOAD NLOAD is forced to 0 0 ON PUMP OFF 8 min 12.8 8 min 8 min Indoor Unit Dry Contact Indoor unit Dry contact has two alternative functions that are selected by J9. Function Contact=open Contact=short J9=open Presence Detector Connection No limit Force to STBY J9=short Power Shedding Function No limit Limit NLOAD 12.
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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): STAND BY INDICATOR 1. Lights up when the Air Conditioner is connected to power and ready to receive the R/C commands OPERATION INDICATOR 1. Lights up during operation. 2. Blinks for 300 msec.
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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) Or 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 Mode = Heat, Set point = 30 12.11.
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CONTROL SYSTEM Model dependent parameters - DNG Unit A DNG 50 B DNG 60 C DNG 72 D DNG 80 3 62 74 22 28 30 32 40 50 63 120 127 127 20 127 127 127 127 127 127 127 27 62 74 3 77 80 22 28 30 32 40 50 63 120 127 127 20 127 127 127 127 127 127 127 27 77 80 4 57 55 22 28 30 32 40 63 85 115 127 127 20 127 127 127 127 127 127 127 27 57 55 4 60 63 22 28 30 32 40 78 100 127 127 127 20 127 127 127 127 127 127 127 27 60 63 Cap .
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CONTROL SYSTEM Model dependent parameters - PXD A PXD 50 B PXD 60 C PXD 72 D PXD 80 Cap .
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CONTROL SYSTEM 12.12.
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CONTROL SYSTEM Model dependent parameters for DCI 72Z No.
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CONTROL SYSTEM Model dependent parameters for DCI72/80 Compressor Parameters Value EEV Parameters Value NormEEVRate 30 EEVCompOFFOpen 200 EEVCompOFFTime 60 EEVMaxOpen 500 EEVMinOperOpenC 60 EEVMaxOperOpenC 500 EEVMinOperOpenH 70 75 EEVMaxOperOpenH 500 MaxSpeedH 95 EEVMinOperOpenHInIDU 60 Step1RPS 40 EEVMaxOperOpenHInIDU 140 Step2RPS 60 EEVIDUOFFOpen 130 Step3RPS 75 EEVMoveSteps 20 NormAcc (sec/RPS) 1 EEVTConstC 30 EEVTConstH 30 NormDec (sec/RPS) 1 BlncTimTrnsStC
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TROUBLESHOOTING 13. 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. to discharge the system. Touching the controller before discharging may cause an electrical shock!!! 13.1.
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TROUBLESHOOTING No Symptom 9 Unit works in wrong mode (cool instead of heat or heat instead of cool) Electronics or power connection to RV Check RV power connections, if OK, check RV operation with direct 230VAC power supply, if OK, replace outdoor controller. 10 All components are operating properly but no cooling or no heating Refrigerant leak Check refrigeration system. 11 Compressor is over heated and unit does not generate capacity EEV problem Check EEV.
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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. During the Outdoor unit diagnostics all four Indoor LED’s (STBY, Operate, Filter and Timer) are blinking.
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TROUBLESHOOTING 13.1.4.1 No. Indoor Unit Diagnostics and Corrective Actions Fault Probable Cause Corrective Action 1 Sensor failures of all types Check sensor connections or replace sensor 2 Communication mismatch Indoor and Outdoor controllers are with different versions Replace Indoor controller 3 No Communication Communication or grounding wiring is not good.
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TROUBLESHOOTING No. Fault Probable Cause Check the voltage between indoor fan terminals on the main P.C.B. 14 The outdoor fan does not function correctly. There is voltage between outdoor fan terminals on the outdoor unit. There is no voltage between outdoor fan terminals on the outdoor unit. Corrective Action - If there is no voltage replace main P.C.B - Replace capacitor or motor. - Check and repair electrical wiring between indoor and outdoor units. -If no voltage replace main P.C.B.
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TROUBLESHOOTING No. 20 21 Fault No cooling or heating takes place, indoor and outdoor fans working. No air supply at indoor unit, compressor operates. Probable Cause Corrective Action - Overload safety device on compressor is cut out (low voltage or high temperature) - Check for proper voltage, switch off power and try again after one hour. - Compressor run capacitor faulty. - Replace compressor capacitor. - Compressor windings are shorted. - Replace compressor.
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TROUBLESHOOTING 13.1.
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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.
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TROUBLESHOOTING 13.1.8 13.1.8.1 Precaution, Advise and Notice Items 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. Advise: Don’t touch the naked lead wire and don’t insert ﬁnger, conductor or anything else into the controller when power is on. 13.1.
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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. to discharge the system. Touching the controller before discharging may cause an electrical shock!!! 13.2.
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TROUBLESHOOTING No 7 8 Symptom Outdoor unit display board and leds are off Compressor operates but no capacity Probable Cause No power supply Check the connections and the wiring on the main terminal - Repair if needed.
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TROUBLESHOOTING No Symptom Probable Cause 21 Other home appliances operation is faulty such as noise appears EMC interference by in the television picture, or the the A/C unit picture is distorted or static occurs in the radio sound 22 All others 13.2.
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TROUBLESHOOTING No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 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 reserved reserved Compressor- Ilegal Speed System Conﬁguration Changed System Conﬁguration Problem Heat sink O
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TROUBLESHOOTING 13.2.3.2 Outdoor fault corrective actions No Fault Name 1 OCT bad 2 CTT bad 3 HST bad 4 OAT bad 5 TSUC bad 6 RGT bad 7 OFAN/Compressor Feedback Loss Probable Cause Corrective Action Thermistor not connected or damaged Check Thermistor OFAN halls or wires bad.
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TROUBLESHOOTING No Fault Name Probable Cause Corrective Action 18 No communication A No signals in line A Check communication 19 Compressor- Ilegal Speed Exceeds speed low limit See # 13 20 System Conﬁguration Changed Communication lines changed from last operation No problem just an announcement 21 System Conﬁguration Problem Miss-match between the IDUs connected to port A,B,C or D, or the total capacity code of IDUs is higher than the ODU maximum capacity code Change conﬁguration if ne
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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 & Cool LED’s. The coding method will be as follows: Heat led will blink 5 times in 5 seconds, and then will be shut off for the next 5 seconds.
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TROUBLESHOOTING 13.2.4.1 No.
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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. Replace the motor.
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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. The unit may stop suddenly during operation. 2.
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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. Use gloves when disassemble the A/C units. SM WNGDCI 2-E.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14. EXPLODED VIEWS AND SPARE PARTS LISTS 14.1 Indoor Unit: WNG 50, WNG 60 DCI 14-1 SM WNGDCI 2-E.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14.2 Intdoor Unit: WNG 50, WNG 60 DCI Item No. Part No. Description Qty 1A 452917400 Grill A/WNG18 1 1B 452952800 Grill B/WNG18 1 1C 452952900 Grill C/WNG18 1 2A 453080400 Display Board Assy.906-257-00 1 3 452919800 Filter 2 4 4518113 Fiber Filter Assy. (Optional) 1 5 453054000 Frame assy.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14.3 Outdoor Unit: ONG3-50 DCI 14-3 SM WNGDCI 2-E.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14.4 Outdoor Unit: ONG3-50 DCI ItemNo. Part No. Description Qty 1 433218 Front panel A 1 2 4526340 Air inlet ring-420 1 3 433223 Painting insulation plate 1 4 4526476 Axial fan OD=401 1 5 4526475 DC motor for DCI 50 1 6 4526457 Motor support 1 7 4527363 Base painting Assy.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14.5 Outdoor Unit: DCI 60 14-5 SM WNGDCI 2-E.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14.6 Outdoor Unit: DСI 60 Item No. Part No. Description Qty 1 4517144 FAN COVER PP+UV 1 2 452795700 PAINTED LEFT CABINET ASSY 1 3 4521642 Painted Right Cabinet and Isolation Assy.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14.7 Indoor Unit: WNG 72 DCI 14-7 SM WNGDCI 2-E.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14.8 Indoor Unit: WNG 72 DCI Item No. Part No. Description 1 452917400 Grille 1 2 452919800 Air Filter 1 3 4518113 Active Carrbon(Cold Catalyst) Filter 1 4 465720009 Frame Asy 1 5 452919600 Screw Cover 1 6 453260400 Evaporator Assy 1 7 4522754 Draining Hose 1 8 453053900 Air Outlet Assy 1 9 452917500 Flap 1 9 452917600 Flap 1 10 452930700 Vert. Louver 1 10 452918200 Vert.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14.9 Indoor Unit: WNG 80 DCI 14-9 SM WNGDCI 2-E.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14.10 Indoor Unit: WNG 80 DCI Item No. Part No. Description Qty 1 4525902 GRILLE ASSY 1 2 4523299 FILTER 1 3 4523303 SHAFT LOCKER 2 4 4518113 AIR FILTER ASSY 1 5 4525610 FRAME ASSY 1 6 4523301 SCREW COVER 3 7 4523302 FIX LOCKER 4 8 462350007 EVAPORATOR ASSY WNG80 R410A 1 9 4525112 DISPLAY ASSY.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14.11 Outdoor Unit: DCI 72, DCI 80 14-11 SM WNGDCI 2-E.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14.12 Outdoor Unit: DCI 72, DCI 80 Item No. Part No. Description Qty 1 465100000 Outlet Grille 1 2 4523652 Painted Left Cabinet Assy. 1 3 452960400 Outdoor Fan 1 4 466130001 Motor 1 5 452888500 Motor Support 1 6 452809900 Base Plate Painting Assy.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14.13 Outdoor Unit: DCI 72 Z 14-13 SM WNGDCI 2-E.
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EXPLODED VIEWS AND SPARE PARTS LISTS 14.14 Outdoor Unit: DCI 72 Z No. Item Description Quan. 1 465100000 Grill/ DCI Trio 2 4523652 PAINTED LEFT CABINET ASSY 1 3 4523758 Nut M8 left 1 4 452960400 Outdoor Fan 1 5 461600023 4-Way Valve Assy.
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APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► INSTALLATION & OPERATING MANUAL WNG 50 / 60 DCI ► INSTALLATION & OPERATING MANUAL WNG 72 / 80 DCI 15-1 SM WNGDCI 2-E.