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Electra DNG 18 Service Manual

Dng series
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Service Manual

REFRIGERANT
R410A
DNG series
Indoor Units
DNG 18
DNG 24
DNG 30
DNG 37
DNG 44
FEBRUARY 2005
Outdoor Units
GC18
OU7-24
OU8-30
OU10-36
OU10-44
HEAT PUMP
COOLING ONLY

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Summary of Contents for Electra DNG 18

  • Page 1: Service Manual

    Service Manual DNG series Indoor Units Outdoor Units DNG 18 GC18 DNG 24 OU7-24 DNG 30 OU8-30 DNG 37 OU10-36 DNG 44 OU10-44 REFRIGERANT HEAT PUMP R410A COOLING ONLY FEBRUARY 2005...
  • Page 2 LIST OF EFFECTIVE PAGES LIST OF EFFECTIVE PAGES Note: Changes in the pages are indicated by a “Revision#” in the footer of each effected page (when none indicates no changes in the relevant page). All pages in the following list represent effected/ non effected pages divided by chapters.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Table of Contents INTRODUCTION ....................1-1 PRODUCT DATA SHEET ..................2-1 RATING CONDITIONS ..................3-1 OUTLINE DIMENSIONS ..................4-1 PERFORMANCE DATA & PRESSURE CURVES ..........5-1 AIRFLOW CURVES ....................6-1 SOUND LEVEL CHARACTERISTICS ..............7-1 ELECTRICAL DATA ....................8-1 WIRING DIAGRAMS .....................9-1 10. ELECTRICAL CONNECTIONS ................10-1 11.

  • Page 4: Main Features

    (heat pump) models, it is available at 1PH, 3PH as follow: • DNG 18, 24, 30, 37 • DNG 18, 24, 30, 37, 44 Remote control compatibility • The DNG unit is compatible with remote controls RC3, RC4, RCW1, RCW2 Main Features The DNG series benefits from the most advanced technological innovations, namely:...
  • Page 5 INTRODUCTION Indoor Unit The indoor unit can fit easily to many types of residential and commercials applications. It includes: • High technology plastic fan and fan housing. • A drain pool that is under the entire unit with internal downward slope. •...
  • Page 6 Product Data Sheet, Chapter 2. It includes: • Compressor mounted in a soundproofed compartment : Rotary – for DNG 18, 24, 30, 37 Scroll – for DNG 44 • Improved 3- blades axial fans for noise reduction.
  • Page 7 PRODUCT DATA SHEET PRODUCT DATA SHEET R410C Model Indoor Unit DNG 18 Model Outdoor Unit GC 18 R410A Installation Method DUCTED Characteristics Units Cooling Heating Btu/hr 19100 18000 Capacity Power Input 3.05 3.12 Energy Efficiency Class Power Supply V/Ph/Hz 230/50/1...
  • Page 8 PRODUCT DATA SHEET Model Indoor Unit DNG 18 Model Outdoor Unit GC 18 3PH R410A Installation Method DUCTED Characteristics Units Cooling Heating Btu/hr 19100 18000 Capacity Power Input 3.05 3.12 Energy Efficiency Class Power Supply V/Ph/Hz 400/50/1 Rated Current 3*3.5 3*3.1...

  • Page 9: Product Data Sheet

    PRODUCT DATA SHEET Model Indoor Unit DNG 24 Model Outdoor Unit OU7-24 R410A Installation Method DUCTED Characteristics Units Cooling Heating Btu/hr 23500 23850 Capacity Power Input 3.04 Energy Efficiency Class Power Supply V/Ph/Hz 230/50/1 Rated Current 10.8 10.5 Starting Current Circuit Breaker Rating Fan Type &...
  • Page 10 PRODUCT DATA SHEET Model Indoor Unit DNG 24 Model Outdoor Unit OU7-24T R410A Installation Method DUCTED Characteristics Units Cooling Heating Btu/hr 23500 23850 Capacity Power Input 3.03 Energy Efficiency Class Power Supply V/Ph/Hz 400/50/3 Rated Current 3*6.0 3*5.4 Starting Current Circuit Breaker Rating 3*10 Fan Type &...
  • Page 11 PRODUCT DATA SHEET Model Indoor Unit DNG 30 Model Outdoor Unit OU8-30 R410A Installation Method DUCTED Characteristics Units Cooling Heating Btu/hr 29000 30700 Capacity Power Input 2.81 3.22 Energy Efficiency Class Power Supply V/Ph/Hz 230/50/1 Rated Current 13.7 12.5 Starting Current Circuit Breaker Rating Fan Type &...
  • Page 12 PRODUCT DATA SHEET Model Indoor Unit DNG 30 Model Outdoor Unit OU8-30T R410A Installation Method DUCTED Characteristics Units Cooling Heating Btu/hr 29000 30700 Capacity Power Input 2.82 3.24 Energy Efficiency Class Power Supply V/Ph/Hz 400/50/3 Rated Current 3*7.5 3*7.1 Starting Current Circuit Breaker Rating 3*16 Fan Type &...

  • Page 13: Ou10

    PRODUCT DATA SHEET Model Indoor Unit DNG 37 Model Outdoor Unit OU10-36 R410A Installation Method DUCTED Characteristics Units Cooling Heating Btu/hr 36350 38200 Capacity 10.6 11.2 Power Input 2.81 3.05 Energy Efficiency Class Power Supply V/Ph/Hz 230/50/1 Rated Current 16.9 16.3 Starting Current Circuit Breaker Rating...

  • Page 14: Ou10

    PRODUCT DATA SHEET Model Indoor Unit DNG 37 Model Outdoor Unit OU10-36T R410A Installation Method DUCTED Characteristics Units Cooling Heating Btu/hr 35480 37870 Capacity 10.4 11.1 Power Input 2.83 Energy Efficiency Class Power Supply V/Ph/Hz 400/50/3 Rated Current 3*10 3*9.6 Starting Current Circuit Breaker Rating 3*16...
  • Page 15 PRODUCT DATA SHEET Model Indoor Unit DNG44 Model Outdoor Unit OU10-44T R410A Installation Method DUCTED Characteristics Units Cooling Heating Btu/hr 42300 47000 Capacity 12.4 13.8 Power Input 3.03 Energy Efficiency Class Power Supply V/Ph/Hz 400/50/3 Rated Current 3*13.7 3*13.0 Starting Current Circuit Breaker Rating 3*16 Fan Type &...

  • Page 16: Rating Conditions

    RATING CONDITIONS RATING CONDITIONS Standard conditions in accordance with ISO 5151 and 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...

  • Page 17: Outline Dimensions

    OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit: DNG 18, 24, 30, 37, 44 Model DNG 18,24,30 DNG 37,44 Service Manual - DNG Series Revision Y05-01 CONTENT...
  • Page 18 OUTLINE DIMENSIONS Outdoor Unit: GC 18 Outdoor Unit: OU7 24 Revision Y05-01 Service Manual - DNG Series CONTENT...
  • Page 19 OUTLINE DIMENSIONS Outdoor Unit: OU8-33 Outdoor Unit: OU10 36, 44 Service Manual - DNG Series Revision Y05-01 CONTENT...

  • Page 20: Performance Data & Pressure Curves

    PERFORMANCE DATA & PRESSURE CURVES PERFORMANCE DATA & PRESSURE CURVES DNG 18, GC18 1PH / 3PH 5.1.1 Cooling Capacity (kW) Entering Air DB Entering Air WB/DB ID Coil( Data OD Coil( 15/21 17/24 19/27 21/29 23/32 5.71 6.05 6.33 6.61 6.83...
  • Page 21 PERFORMANCE DATA & PRESSURE CURVES 5.1.2 Heating ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 3.06 1.36 2.94 1.45 2.83 1.52 3.29 1.39 3.18 1.47 3.06 1.55 3.50 1.41 3.38 1.50 3.26 1.58 4.26 1.48 4.08 1.57 3.91 1.67 5.46 1.59 5.30...
  • Page 22 PERFORMANCE DATA & PRESSURE CURVES Pressure Curves 5.3.1 Cooling Suction Pressure VS.Outdoor Temp 12.0 21/15(DB/WB ºC) 11.5 24/17(DB/WB ºC) 11.0 27/19(DB/WB ºC) 10.5 29/21(DB/WB ºC) 32/23(DB/WB ºC) 10.0 Outdoor Temp.(DB Discharge Pressure VS.Outdoor Temp 21/15(DB/WB ºC) 24/17(DB/WB ºC) 27/19(DB/WB ºC) 29/21(DB/WB ºC) 32/23(DB/WB ºC) Outdoor Temp.(DB...
  • Page 23 PERFORMANCE DATA & PRESSURE CURVES 5.3.2 Heating Suction Pressure VS.Outdoor Temp' 10.0 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB Discharge Pressure VS.Outdoor Temp' 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB Revision Y05-01 Service Manual - DNG Series CONTENT...
  • Page 24 PERFORMANCE DATA & PRESSURE CURVES DNG 24, OU7- 24 1PH / 3PH 5.4.1 Cooling Capacity (kW) Entering Air DB Entering Air WB/DB ID Coil( Data OD Coil( 15/21 17/24 19/27 21/29 23/32 7.04 7.45 7.80 8.14 8.42 5.17 5.48 5.78 5.64 5.74 1.70...
  • Page 25 PERFORMANCE DATA & PRESSURE CURVES 5.4.2 Heating ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 4.04 1.84 3.89 1.96 3.73 2.06 4.35 1.89 4.20 1.99 4.04 2.10 4.62 1.91 4.47 2.02 4.31 2.14 5.62 2.00 5.39 2.13 5.16 2.25 7.21 2.15 7.00...
  • Page 26 PERFORMANCE DATA & PRESSURE CURVES Pressure Curves 5.6.1 Cooling Suction Pressure VS.Outdoor Temp 12.0 11.5 21/15(DB/WB ºC) 11.0 24/17(DB/WB ºC) 27/19(DB/WB ºC) 10.5 29/21(DB/WB ºC) 10.0 32/23(DB/WB ºC) Outdoor Temp.(DB Discharge Pressure VS.Outdoor Temp 21/15(DB/WB ºC) 24/17(DB/WB ºC) 27/19(DB/WB ºC) 29/21(DB/WB ºC) 32/23(DB/WB ºC) Outdoor Temp.(DB...
  • Page 27 PERFORMANCE DATA & PRESSURE CURVES 5.6.2 Heating Suction Pressure VS.Outdoor Temp 10.0 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB Discharge Pressure VS.Outdoor Temp 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB Revision Y05-01 Service Manual - DNG Series CONTENT...
  • Page 28 PERFORMANCE DATA & PRESSURE CURVES DNG 30, OU8- 30 1PH / 3PH 5.7.1 Cooling Capacity (kW) Entering Air DB Entering Air WB/DB ID Coil( Data OD Coil( 15/21 17/24 19/27 21/29 23/32 8.67 9.18 9.61 10.03 10.37 6.27 6.65 7.01 6.85 6.96 2.13...
  • Page 29 PERFORMANCE DATA & PRESSURE CURVES 5.7.2 Heating ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 5.20 2.24 5.00 2.39 4.80 2.51 5.59 2.30 5.40 2.42 5.20 2.55 5.94 2.32 5.74 2.46 5.54 2.60 7.23 2.44 6.93 2.59 6.63 2.74 9.27 2.62 9.00...
  • Page 30 PERFORMANCE DATA & PRESSURE CURVES Pressure Curves 5.9.1 Cooling Suction Pressure VS.Outdoor Temp' 12.0 11.5 21/15(DB/WB ºC) 24/17(DB/WB ºC) 11.0 27/19(DB/WB ºC) 10.5 29/21(DB/WB ºC) 10.0 32/23(DB/WB ºC) Outdoor Temp.(DB Discharge Pressure VS.Outdoor Temp' 21/15(DB/WB ºC) 24/17(DB/WB ºC) 27/19(DB/WB ºC) 29/21(DB/WB ºC) 32/23(DB/WB ºC) Outdoor Temp.(DB...
  • Page 31 PERFORMANCE DATA & PRESSURE CURVES 5.9.2 Heating Suction Pressure VS.Outdoor Temp' 10.0 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB Discharge Pressure VS.Outdoor Temp' 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB 5-12 Revision Y05-01 Service Manual - DNG Series...
  • Page 32 PERFORMANCE DATA & PRESSURE CURVES 5.10 DNG 37, OU10- 36 1PH 5.10.1 Cooling Capacity (kW) Entering Air DB Entering Air WB/DB ID Coil( Data OD Coil( 15/21 17/24 19/27 21/29 23/32 10.81 11.45 11.98 12.51 12.93 7.92 8.40 8.85 8.65 8.80 2.70 2.70...
  • Page 33 PERFORMANCE DATA & PRESSURE CURVES 5.10.2 Heating ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 6.47 2.94 6.22 3.13 5.98 3.28 6.96 3.01 6.71 3.17 6.47 3.35 7.39 3.05 7.15 3.23 6.90 3.41 8.99 3.19 8.62 3.39 8.25 3.60 11.54 3.43 10.81...
  • Page 34 PERFORMANCE DATA & PRESSURE CURVES 5.12 DNG 37, OU10- 36 3PH 5.12.1 Cooling Capacity (kW) Entering Air DB Entering Air WB/DB ID Coil( Data OD Coil( 15/21 17/24 19/27 21/29 23/32 10.61 11.23 11.75 12.27 12.69 7.77 8.24 8.68 8.49 8.63 2.61 2.61...
  • Page 35 PERFORMANCE DATA & PRESSURE CURVES 5.12.2 Heating ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 6.41 2.86 6.17 3.05 5.92 3.20 6.90 2.94 6.65 3.10 6.41 3.26 7.33 2.97 7.08 3.15 6.84 3.33 8.91 3.11 8.55 3.31 8.18 3.51 11.43 3.35 11.10...
  • Page 36 PERFORMANCE DATA & PRESSURE CURVES 5.14 Pressure Curves – DNG 37 1PH/3PH 5.14.1 Cooling Suction Pressure VS.Outdoor Temp 12.0 11.5 21/15(DB/WB ºC) 11.0 24/17(DB/WB ºC) 27/19(DB/WB ºC) 10.5 29/21(DB/WB ºC) 10.0 32/23(DB/WB ºC) Outdoor Temp.(DB Discharge Pressure VS.Outdoor Temp 21/15(DB/WB ºC) 24/17(DB/WB ºC) 27/19(DB/WB ºC) 29/21(DB/WB ºC)
  • Page 37 PERFORMANCE DATA & PRESSURE CURVES 5.14.2 Heating Suction Pressure VS.Outdoor Temp 10.0 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB Discharge Pressure VS.Outdoor Temp 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB 5-18 Revision Y05-01 Service Manual - DNG Series...
  • Page 38 PERFORMANCE DATA & PRESSURE CURVES 5.15 DNG 44, OU10- 44 3PH 5.15.1 Cooling Capacity (kW) Entering Air DB Entering Air WB/DB ID Coil( Data OD Coil( 15/21 17/24 19/27 21/29 23/32 12.65 13.39 14.01 14.63 15.13 8.93 9.47 9.98 9.75 9.92 3.27 3.27...
  • Page 39 PERFORMANCE DATA & PRESSURE CURVES 5.15.2 Heating ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 7.97 3.64 7.67 3.88 7.36 4.07 8.58 3.73 8.27 3.94 7.97 4.15 9.11 3.78 8.80 4.00 8.50 4.23 11.08 3.96 10.63 4.21 10.17 4.46 14.21 4.25 13.80...
  • Page 40 PERFORMANCE DATA & PRESSURE CURVES 5.17 Pressure Curves 5.17.1 Cooling Suction Pressure VS.Outdoor Temp 11.0 10.5 21/15(DB/WB ºC) 24/17(DB/WB ºC) 10.0 27/19(DB/WB ºC) 29/21(DB/WB ºC) 32/23(DB/WB ºC) Outdoor Temp.(DB Discharge Pressure VS.Outdoor Temp 21/15(DB/WB ºC) 24/17(DB/WB ºC) 27/19(DB/WB ºC) 29/21(DB/WB ºC) 32/23(DB/WB ºC) Outdoor Temp.(DB Service Manual - DNG Series...
  • Page 41 PERFORMANCE DATA & PRESSURE CURVES 5.17.2 Heating Suction Pressure VS.Outdoor Temp 10.0 15 DB (ºC) 20 DB (ºC) 25 DB (ºC) Outdoor Temp.( WB Discharge Pressure VS.Outdoor Temp 25 DB (ºC) 20 DB (ºC) 15 DB (ºC) Outdoor Temp.( WB 5-22 Revision Y05-01 Service Manual - DNG Series...

  • Page 42: Airflow Curves

    AIRFLOW CURVES AIRFLOW CURVES Model: DNG 18 Low Speed Medium Speed High Speed Super Speed Operating range Model: DNG 24 Low Speed Medium Speed High Speed Super Speed Operating range Service Manual - DNG Series Revision Y05-01 CONTENT...
  • Page 43 AIRFLOW CURVES Model: DNG 30 Low Speed Medium Speed High Speed Super Speed Operating range Model: DNG 37 Low Speed Medium Speed High Speed Super Speed Operating range Revision Y05-01 Service Manual - DNG Series CONTENT...
  • Page 44 AIRFLOW CURVES Model: DNG 44 Low Speed Medium Speed High Speed Operating range DNG UNITS RANGE AIR FLOW CORRECTION FACTORS (at nominal rating conditions). Air Flow Rate [% of nominal] 100% 0.88 0.91 0.94 0.97 Cooling 0.78 0.84 0.89 0.95 0.95 0.97 0.98...

  • Page 45: Sound Level Characteristics

    SOUND LEVEL CHARACTERISTICS SOUND LEVEL CHARACTERISTICS Sound Pressure Level Figure 1. Wall Mounted Figure 2. Floor Mounted Figure 3. Ducted Figure 4. Cassette Soud Pressure Level Spectrum (Measured as Figure 3) DNG 18 DNG 24 NC-70 NC-70 NC-60 NC-60 NC-50 NC-50...
  • Page 46 SOUND LEVEL CHARACTERISTICS DNG 30 DNG 37 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 NC-20 CONTINUOUS CONTINUOUS NOISE NOISE BAND CENTER FREQUENCIES, Hz BAND CENTER FREQUENCIES, Hz DNG 44 NC-70 NC-60...

  • Page 47: Outdoor Units

    SOUND LEVEL CHARACTERISTICS Outdoor units Microphone Distance from Unit Sound Pressure Level Spectrum (Measured as Figure 5) GC 18 Cooling GC 18 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 NC-20...
  • Page 48 SOUND LEVEL CHARACTERISTICS OU8-30 Cooling OU8-30 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 NC-20 CONTINUOUS CONTINUOUS NOISE NOISE BAND CENTER FREQUENCIES, Hz BAND CENTER FREQUENCIES, Hz OU10-36 Cooling OU10-36 Heating NC-70...
  • Page 49 SOUND LEVEL CHARACTERISTICS OU10-44 Cooling OU10-44 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 NC-20 CONTINUOUS CONTINUOUS NOISE NOISE BAND CENTER FREQUENCIES, Hz BAND CENTER FREQUENCIES, Hz Service Manual - DNG Series Revision Y05-01 CONTENT...

  • Page 50: Electrical Data

    ELECTRICAL DATA ELECTRICAL DATA Single Phase Units MODEL DNG 18 DNG 24 To Indoor To Outdoor Power Supply 1PH – 230V – 50 Hz 1PH – 230V – 50 Hz Max Current, A Circuit Breaker Power Supply Wiring No. X 3 X 2.5 mm...

  • Page 51: Wiring Diagrams

    WIRING DIAGRAMS WIRING DIAGRAMS Indoor Unit: DNG 18 Indoor Unit: DNG 24 Service Manual - DNG Series Revision Y05-01 CONTENT...
  • Page 52 WIRING DIAGRAMS Indoor Unit: DNG 30, 37 Indoor Unit: DNG 44 Revision Y05-01 Service Manual - DNG Series CONTENT...
  • Page 53 WIRING DIAGRAMS Outdoor Unit: GC 18 1PH Outdoor Unit: GC 18 3PH AN TI - PH ASE PR O TEC TO R I N D I C ATO R LI G H T 380 ~ 400V BU BU A/ C C O N TAC TO R C O M P.
  • Page 54 WIRING DIAGRAMS Outdoor Unit: OU8-30 1PH Outdoor Unit: OU8-30 3PH Revision Y05-01 Service Manual - DNG Series CONTENT...
  • Page 55 WIRING DIAGRAMS Outdoor Unit: OU8-36 1PH Outdoor Unit: OU8-36 3PH Service Manual - DNG Series Revision Y05-01 CONTENT...
  • Page 56 WIRING DIAGRAMS 9.10 Outdoor Unit: OU10-44 3PH Revision Y05-01 Service Manual - DNG Series CONTENT...

  • Page 57: Electrical Connections

    ELECTRICAL CONNECTIONS ELECTRICAL CONNECTIONS 10.1 DNG 18 1PH 1. Indoor Unit CLOCK 2. Outdoor Unit 3. Power supply 4. Control cable (2 x 0.5mm²) 5. Display connector 6. Display unit 4 5 6 7. Wireless remote control ²) 8. Inter connecting cable (5 x 2.5mm...
  • Page 58 ELECTRICAL CONNECTIONS 10.3 DNG 18, 24, 30, 37, 44 3PH 1. Indoor unit 2. Outdoor unit 3. Power supply cable CLOCK 4. Control cable (2 x 0.5mm²) 5. Display connector 6. Display unit 7. Wireless remote control ²) 8. Inter connecting cable (6 x 1.5mm 4 5 6 9.

  • Page 59: Refrigeration Diagrams

    REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS 11.1 Heat Pump Models 11.1.1 DNG 18/ GC 18 RC OUTDOOR UNIT INDOOR UNIT Service Sensor port Sensor Flared Valves connection Reverse valve Capillary tube Capillary Indoor coil tube Strainer Check Strainer Outdoor coil valve COOLING MODE...
  • Page 60 REFRIGERATION DIAGRAMS 11.2 Heat Pump Models 11.2.1 DNG 24/ OU7-24 RC, DNG 30/ OU8-30 RC 11-2 Revision Y05-01 Service Manual - DNG Series CONTENT...
  • Page 61 REFRIGERATION DIAGRAMS 11.3 Heat Pump Models 11.3.1 DNG 37/ OU10-36 RC DNG 44/ OU10-44 RC Service Manual - DNG Series Revision Y05-01 11-3 CONTENT...
  • Page 62 REFRIGERATION DIAGRAMS 11.4 Cooling Model Only 11.2.1 DNG 18 ST OUTDOOR UNIT INDOOR UNIT Service Sensor port Sensor Flared Valves connection Capillary Indoor coil tube Strainer Outdoor coil 11.5 Cooling Models Only 11.2.1 DNG 24, 30, 37, 44 ST 11-4...

  • Page 63: Tubing Connections

    TUBING CONNECTIONS TUBING CONNECTIONS TUBE (Inch) ¼” ⅜” ½” ⅝” ¾” TORQUE (Nm) Flare Nuts 15-18 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 64: Introduction

    CONTROL SYSTEM CONTROL SYSTEM 13.1 Electronic Control 13.1.1 Introduction The electronic control information is designed for service applications, and is common to the following groups of air-conditioners: x ST/RC group -Cooling only / cooling and heating by heat pump. x SH group -Cooling and heating by heat pump and supplementary heater.
  • Page 65 CONTROL SYSTEM 13.1.3 Remote Control DIP Switch Settings SETTING SWITCH STATUS DEFINITION NO. 1 NO. 2 NO. 3 NO. 4 RC-ALL MODES OF OPERATION STD-COOL, FAN, DRY, ACTIVE HEAT-COOL, FAN, DRY, ACTIVE AUTO FAN (AF) TEMP. DISPLAY IN qC DEGREES VERTICAL SWING ONLY HORIZONTAL &...
  • Page 66 CONTROL SYSTEM 13.1.4 Main PCB Controller Ionizer Connection Plugs Water Pump Humidity Indoor Fan Indoor Fan capacitor To Room Thermistor To In Thermistor To Out Thermistor To MIU Buzzer Enabled Jumper To RC-W To RS485 Level IR Enabled Jumper Clock To DIN Plug Cable Model Plug for display box...
  • Page 67 CONTROL SYSTEM 13.1.5 Display Board Display Display Board PCB Legend Name Plate Cooling LED Heating LED Push Button (Mode) Timer LED STBY LED Operation LED IR Receiver Buzzer 10. Display Port Connection 13-4 Revision Y05-01 Service Manual - DNG Series CONTENT...
  • Page 68 CONTROL SYSTEM 13.2 Abbreviations - Alternate Current - Air-Conditioner - ON or OFF status CLOCK - ON/OFF Operation Input, (dry contact) COMP - Compressor - Central Processing Unit - Heating Element - High Pressure Control - Hardware - Indoor Condensation Pump - Indoor Coil Temperature (RT2) sensor IF, I FAN -Indoor Fan...
  • Page 69 CONTROL SYSTEM 13.3 General functions for all models 13.3.1 COMP operation o For each Mode including POWER OFF & SB, a Min time delay of 3 min before COMP restarting, excluding DEICING Mode. o The Min operation time of COMP under different operating conditions is Min operation time of Operation Mode COMP...
  • Page 70 CONTROL SYSTEM 13.3.3 OFAN operation o Min time interval between OFAN ON/OFF state change is 30 sec. 13.3.4 HE operation o Minimum Heaters ON or OFF time is 30 sec. o Heaters can be activated only if IFAN is on. o In RH group, HE-1 and HE-2 will be activated only when COMP (or WVL) is not operating, except in Dry Mode.
  • Page 71 CONTROL SYSTEM III.Cases for disabling thermistor short/disconnected detection The detection of thermistor faults (a) and (b) above, are disabled when Deicer Protection is started. The detection will be enabled again only after the deicing is completed, and COMP has been restarted and operated for 30 sec. When all the following conditions are fulfilled: a.
  • Page 72 CONTROL SYSTEM 13.4 Cooling Mode: Cool, Auto (at Cooling) Temp: Selected desired temperature. Fan: HIGH, MED, and LOW Timer: Any I Feel: On or Off Control function Maintains room temp at desired level by comparing RT and SPT. (RT - SPT) [ COMP (WVL) OFAN...
  • Page 73 CONTROL SYSTEM 13.4.1 Cooling with Autofan Mode: Cool, Auto (at cooling) Temp: Selected desired temperature Fan: Auto Timer: Any I Feel: On or Off Control function Maintains room temp at desired level and controls the IFAN speed for optimal comfort. (RT - SPT) [ COMP (WVL)

  • Page 74: Heating Mode

    CONTROL SYSTEM 13.5 Heating Mode 13.5.1 Heating Mode - General In heating Mode, temp. compensation schedule will be activated for wall mounted and ducted models (i.e. FCD/RWK, ELD, ECC, WAX, WMF and WMN/WHX) according to the following table: SPT [ Add to SPT I-FEEL ON I-FEEL OFF...
  • Page 75 CONTROL SYSTEM (b) In RC and SH groups, whenever COMP & HE are both OFF, excluding protection modes, IFAN operation will be according to the following: In WAX, flour mounted or mobile models, IFAN switches to LOW for 30 sec and then stops. In other models IFAN will operate in low speed for 30 sec and then stop.
  • Page 76 CONTROL SYSTEM 13.5.4 Heating, RC or SH Group Mode: Heat, Auto (at heating) Temp: Selected desired temperature Fan: HIGH, MED, LOW Timer: Any I Feel: On or Off Control function Maintains room temp. at desired level by comparing RAT or RCT to SPT. (RT - SPT) [ COMP (WVL)
  • Page 77 CONTROL SYSTEM 13.5.5 Heating, RC or SH Group with Autofan Mode: Heat, Auto (at heating) Temp: Selected desired temperature Fan: Auto Timer: Any I Feel: On or Off Control function Maintains room temp at desired level by controlling COMP, IFAN and OFAN. (RT - SPT) [ COMP (WVL)
  • Page 78 CONTROL SYSTEM 13.5.6 OFAN operation is controlled by the graph below when (RAT t SPT – 2 c), AND (ICT t 45 c), AND (COMP is ON) Otherwise, OFAN runs together with COMP. OCT [ OFAN Service Manual - DNG Series Revision Y05-01 13-15 CONTENT...
  • Page 79 CONTROL SYSTEM 13.5.7 Heating, RH Group Mode: Heat, Auto (at Heating) Temp: Selected desired temperature Fan: HIGH, MED, LOW Timer: Any I Feel: On or Off Control Function Maintains room temp. at desired level by controlling Heating Elements : HE1 or HE2. (RT - SPT) in H/M/L IFAN...
  • Page 80 CONTROL SYSTEM 13.5.8 Heating, RH Group, with Autofan Mode: Heat, Auto (at Heating) Temp: Selected desired temperature Fan: Auto Timer: Any I Feel: On or Off Control function Maintains room temp at desired level by controlling the 2-Stage Electric Heaters. (RT - SPT) [ IFAN 30 sec...
  • Page 81 CONTROL SYSTEM 13.6 Automatic Cooling or Heating - General 13.6.1 The Auto Mode is for model with compressor and the WVL-RH only. The WVL-ST, RC and SH units do not work in Auto Mode. o Switching-temperature between Cooling and Heating is SPT r 3 o Autofan in Automatic Cooling and Heating Mode will activate “Cooling with Autofan Mode”...
  • Page 82 CONTROL SYSTEM 13.6.2 Auto Cooling or Heating, RC or SH Groups Mode: Auto Temp: Selected desired temperature Fan: Timer: Any I Feel: On or Off Control function Maintains room temp at desired level by selecting between cooling and heating modes. (RT - SPT) [ Auto Heat Mode Auto Cool Mode...
  • Page 83 CONTROL SYSTEM 13.6.3 Auto Cooling or Heating RH Group Mode: Auto Temp: Selected desired temperature Fan: Any Timer: Any I Feel: On or Off Control function Maintains room temp at desired level by selecting between Cooling or Heating Modes. (RT - SPT) [ Auto Heat Mode Auto Cool Mode Auto Heat Mode...
  • Page 84 CONTROL SYSTEM Dry, ST or RC group or P2000 model with any group settings Mode: Dry Temp: Selected desired temp Fan: Low (automatically selected by software) Timer: Any I FEEL:Any Control function Reduce room humidity with minimum temp. fluctuations by operating in Cool Mode with low speed IFAN.
  • Page 85 CONTROL SYSTEM 13.7.1 Dry, SH or RH group excluding P2000 model Mode : Dry Temp: Selected desired temp. Fan: Low (automatically selected by software) Timer: Any I FEEL: Any Control function Reduce room humidity with minimum Temp. fluctuations by operating in Cool Mode with low speed IFAN and HE.
  • Page 86 CONTROL SYSTEM 13.8 Cooling Mode Protections 13.8.1 Indoor Coil Defrost Mode: Cooling, Dry, Auto Temp: Selected desired temp. Fan: Any Timer: Any I Feel: On or Off Control Function Protect the indoor coil from ice formation at low ambient temperature. ICT [ OFAN COMP...
  • Page 87 CONTROL SYSTEM 13.8.2 High Pressure Protection Mode: (Auto) Cooling or Dry Temp: Selected desired temp. Fan: Timer: Any I Feel: On or Off Control Function To protect the COMP from the high pressure built-up in the outdoor coil during normal cooling operation, by switching OFF the IFAN and COMP.
  • Page 88 CONTROL SYSTEM 13.8.3 Outdoor coil Deicing (excluding RH Group) Mode: Heating, Auto (at heating) Temp: Selected desired Temp Fan: Timer: Any I FEEL:Any Control function Protects the Outdoor coil from ice formation by controlling COMP & RV operation. Deicing procedure: OCT [ (DDT) 3 min...
  • Page 89 CONTROL SYSTEM Notes : 1. At the first COMP activation after SB or OFF, if (OCT < 0 c), then DI = 10 min, else DI = 40 min. 2. In the following Deicing cycles, the time interval between two Deicing cycles activation is between 30 to 80 min (refer to the flow chart).
  • Page 90 CONTROL SYSTEM 13.8.5 Condensation Pump (DNC model only) Mode: Cool, Dry, Auto Temp: Selected desired temperature Fan: Timer: Any I FEEL: Any Control function: Prevent Condensed water from Overflowing. Overflow when Overflow when unit is ON unit is OFF Overflow Water Level Normal OPER...
  • Page 91 CONTROL SYSTEM 13.9 Controller Self-Test Procedure 13.9.1 By Shorting Test Jumper J1 SELF-TEST FLOW CHART FOR CONTROLLER (VERSION 4V5 OR HIGHER) SHORT JUMPER Step 1 RC/ST TEST (CONTROL PCB) MODEL CONFIGURATION TEST PRESS ON Step 2 POWER BUTTON STEP MOTOR TEST FREQUENCY TEST STANDBY...
  • Page 92 CONTROL SYSTEM 13.9.2 By Remote Control Settings: STEP 1: TURNING ON THE POWER. Turn ON the power, make sure that the unit is in operation. STEP 2 : ENABLE SELF-TEST MODE Use the remote control to send the first settings to display / indoor unit HEAT mode, HIGH IFAN, set temperature to 16 ºC, no I-FEEL Sleep or any other timer settings are needed.
  • Page 93 CONTROL SYSTEM STEP 3: AUTO LED WALK TEST. 1) All the LEDS will turn OFF. 2) All the LEDS will turn ON for 1 second one by one in the following sequence: STAND-BY Ö OPERATE Ö TIMER Ö FILTER Ö COOL Ö HEAT. 3) In PRX all the LEDS will turn ON for 1 second one by one in the following sequence : 18 °c Ö...
  • Page 94 CONTROL SYSTEM Fail condition: 0 sec - STAND-BY is turned ON 3 sec - STAND-BY, OPER, TIMER and FILTER are turned ON When the timing reset test is completed, the next test will start automatically. STEP 8: MEMORY TEST (EEPROM) The test purpose is to check if the memory is functioning correctly.
  • Page 95 CONTROL SYSTEM 13.10 System Diagnostics Pressing Mode button for 5-10 seconds in SB or any other operation mode will activate the DIAGNOSTICS mode, acknowledged by 3 short beeps and lighting of COOL and HEAT LEDs. In DIAGNOSTICS mode, system failures will be indicated by the blinking of HEAT & COOL LEDs.

  • Page 96: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING ELECTRICAL & CONTROL TROUBLESHOOTING ATTENTION: check for broken or loose cable lugs first. SYMPTON PROBABLE CAUSE CORRECTIVE ACTION The stand-by indicator There is no correct voltage -If the voltage is low repair power (red led) on the central between the line and neutral supply.
  • Page 97 TROUBLESHOOTING ATTENTION : check for broken or loose cable lugs first SYMPTON PROBABLE CAUSE CORRECTIVE ACTION Only indoor fan and Outdoor fan blocked. - Remove obstructions. compressor working. Only indoor fan -Run capacitor of outdoor - Replace capacitor. working. fan motor faulty. -Windings of outdoor fan are -Replace motor.

  • Page 98: Exploded Views And Spare Parts Lists

    EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS 15.1 Indoor Unit: DNG 18, 24, 30, 37, 44 Service Manual - DNG Series Revision Y05-01 15-1 CONTENT...
  • Page 99 P.C ASSY WITHOUT RELAY DNC 402713 WIRED DISPLAY BOX EMD/ELD 473907 FAN HOUSING ASSY DNG 18-24 11 473248 AIR FILTER FRAME ASSY DNG 18-30 12 473250 MOTOR LEG ASSY DNG 16 436673 REMOTE CONTROL RC4/RC 17 489117 RELAY AC, SPST, 30A...
  • Page 100 P.C ASSY WITHOUT RELAY DNC 402713 WIRED DISPLAY BOX EMD/ELD 473905 FAN HOUSING ASSY DNG 30 11 473248 AIR FILTER FRAME ASSY DNG 18-30 12 473250 MOTOR LEG ASSY DNG 16 436673 REMOTE CONTROL RC4/RC 18 442019 CAPACITOR 8mF 400V P1/P2...
  • Page 101 EXPLODED VIEWS AND SPARE PARTS LISTS 15.6 Indoor Unit: DNG 44 No. Part No. Description 473440 IU COIL GR/HDR DNG 44 473231 FLOAT SUPPORT DNG 473902 DNG METAL FILTER 37-44 473247 INSULATED DRAIN POOL ASSY DNG 473700 DNG OVER FLOW SWITCH 473211 COIL SUPPORT DNG 44 433432...
  • Page 102 EXPLODED VIEWS AND SPARE PARTS LISTS 15.7 Outdoor Unit: GC 18 RC 1PH Service Manual - DNG Series Revision Y05-01 15-5 CONTENT...
  • Page 103 EXPLODED VIEWS AND SPARE PARTS LISTS 15.8 Outdoor Unit: GC 18 RC 1PH SP No. Part No. Description 4517144 COVER PP+UV 452795700 PAINTED LEFT CABINET ASSY 452989200 Base welding plate assy. 4516786 PAINTED RIGHT CABINET ASSY 4516985 Partition Plate 455000506 Compressor Capacitor With Screw 45uF (CBB65) 455000104 Double patch Capacitor for fan motor 4uF (CBB61S)
  • Page 104 EXPLODED VIEWS AND SPARE PARTS LISTS 15.9 Outdoor Unit: GC 18 ST 1PH Service Manual - DNG Series Revision Y05-01 15-7 CONTENT...
  • Page 105 EXPLODED VIEWS AND SPARE PARTS LISTS 15.10 Outdoor Unit: GC 18 ST 1PH SP No. Part No. Description 4517144 FAN COVER PP+UV 452795700 PAINTED LEFT CABINET ASSY 452989200 Base welding plate assy. 4516786 PAINTED RIGHT CABINET ASSY 4516985 Partition Plate 455000506 Compressor Capacitor With Screw 45uF (CBB65) 455000104...
  • Page 106 EXPLODED VIEWS AND SPARE PARTS LISTS 15.11 Outdoor Unit: GC 18 RC 3PH Service Manual - DNG Series Revision Y05-01 15-9 CONTENT...
  • Page 107 EXPLODED VIEWS AND SPARE PARTS LISTS 15.12 Outdoor Unit: GC 18 RC 3PH SP No. Part No. Description 4517144 Grid A 452795700 left-cover 452881901 base panel 4516786 right cover 4516985 partition 455000104 capacitance for fan 204107 cable clip 452872000 cantactor 4522469 4 bit terminal 4521289...
  • Page 108 EXPLODED VIEWS AND SPARE PARTS LISTS 15.13 Outdoor Unit: GC 18 ST 3PH Service Manual - DNG Series Revision Y05-01 15-11 CONTENT...
  • Page 109 EXPLODED VIEWS AND SPARE PARTS LISTS 15.14 Outdoor Unit: GC 18 ST 3PH SP No. Part No. Description 4517144 Fan cover 452795700 Painted left cabinet assy 452881901 Base plate paint assy. 4516786 Painted right cabinet assy 4516985 Partition plate 455000104 capacitance for fan 204107 cable clip...
  • Page 110 EXPLODED VIEWS AND SPARE PARTS LISTS 15.15 Outdoor Unit: OU7-24 RC 1PH Service Manual - DNG Series Revision Y05-01 15-13 CONTENT...
  • Page 111 EXPLODED VIEWS AND SPARE PARTS LISTS 15.16 Outdoor Unit: OU7-24 RC 1PH No. SP No. Part No. Description 190443 HEATER CRANKCASE MITSUBISHI CO 402283 SUCTION ACCUMULATOR 3"x5/8" 3. 402495 BOARD TPHN 5B 433285 COIL OU7-24 HDR 433288 CAPILLARY ASSY OU7-24 R410A 433291 TUBING ASSY OU7 R410A 433293 COMPRESSOR NN27VBAMT 433294 NEW BASE ASSY OU 2005 EXPORT...
  • Page 112 EXPLODED VIEWS AND SPARE PARTS LISTS 15.17 Outdoor Unit: OU7-24 ST 1PH *Optional Service Manual - DNG Series Revision Y05-01 15-15 CONTENT...
  • Page 113 EXPLODED VIEWS AND SPARE PARTS LISTS 15.18 Outdoor Unit: OU7-24 ST 1PH No. SP No. Part No. Description 190443 HEATER CRANKCASE MITSUBISHI CO 402283 SUCTION ACCUMULATOR 3"x5/8" 3. 402495 BOARD TPHN 5B 433293 COMPRESSOR NN27VBAMT 433705 NEW BASE ASSY OU 2005 LOCAL 433816 SUCTION ASSY OU7 R410A 433817 TUBING ASSY OU7 ST R410A 433845 CAPILLARY ASSY OU7-24 ST R410A...
  • Page 114 EXPLODED VIEWS AND SPARE PARTS LISTS 15.19 Outdoor Unit: OU7-24 RC 3PH Service Manual - DNG Series Revision Y05-01 15-17 CONTENT...
  • Page 115 EXPLODED VIEWS AND SPARE PARTS LISTS 15.20 Outdoor Unit: OU7-24 RC 3PH No. SP No. Part No. Description 190443 HEATER CRANKCASE MITSUBISHI CO 402283 SUCTION ACCUMULATOR 3"x5/8" 3. 402494 BOARD TPHN 3C 433285 COIL OU7-24 HDR 433288 CAPILLARY ASSY OU7-24 R410A 433291 TUBING ASSY OU7 R410A 433294 NEW BASE ASSY OU 2005 EXPORT 433753 COMPRESSOR NN27YDAMT...
  • Page 116 EXPLODED VIEWS AND SPARE PARTS LISTS 15.21 Outdoor Unit: OU7-24 ST 3PH *Optional Service Manual - DNG Series Revision Y05-01 15-19 CONTENT...
  • Page 117 EXPLODED VIEWS AND SPARE PARTS LISTS 15.22 Outdoor Unit: OU7-24 ST 3PH No. SP No. Part No. Description 190443 HEATER CRANKCASE MITSUBISHI CO 402283 SUCTION ACCUMULATOR 3"x5/8" 3. 402494 BOARD TPHN 3C 433705 NEW BASE ASSY OU 2005 LOCAL 433753 COMPRESSOR NN27YDAMT 433816 SUCTION ASSY OU7 R410A 433817 TUBING ASSY OU7 ST R410A 433845 CAPILLARY ASSY OU7-24 ST R410A...
  • Page 118 EXPLODED VIEWS AND SPARE PARTS LISTS 15.23 Outdoor Unit: OU8-30 RC 1PH Service Manual - DNG Series Revision Y05-01 15-21 CONTENT...
  • Page 119 EXPLODED VIEWS AND SPARE PARTS LISTS 15.24 Outdoor Unit: OU8-30 RC 1PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 402930 SIDE PANEL OU8-33 436357 SMALL ELECTRICAL COVER OU 439929 FRONT PANEL/COLLECTOR OU8-30 437091 OU SQUARE FAN GUARD 433294 NEW BASE ASSY OU 2005 EXPORT 433807...
  • Page 120 EXPLODED VIEWS AND SPARE PARTS LISTS 15.25 Outdoor Unit: OU8-30 RC 1PH Soft Starter Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 402930 SIDE PANEL OU8-33 436357 SMALL ELECTRICAL COVER OU 439929 FRONT PANEL/COLLECTOR OU8-30 437091 OU SQUARE FAN GUARD 433294...
  • Page 121 EXPLODED VIEWS AND SPARE PARTS LISTS 15.26 Outdoor Unit: OU8-30 ST 1PH 15-24 Revision Y05-01 Service Manual - DNG Series CONTENT...
  • Page 122 EXPLODED VIEWS AND SPARE PARTS LISTS 15.27 Outdoor Unit: OU8-30 ST 1PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 402930 SIDE PANEL OU8-33 436357 SMALL ELECTRICAL COVER OU 439929 FRONT PANEL/COLLECTOR OU8-30 437091 OU SQUARE FAN GUARD 433705 NEW BASE ASSY OU 2005 LOCAL 433834...
  • Page 123 EXPLODED VIEWS AND SPARE PARTS LISTS 15.28 Outdoor Unit: OU8-30 ST 1PH Soft Starter Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 402930 SIDE PANEL OU8-33 436357 SMALL ELECTRICAL COVER OU 439929 FRONT PANEL/COLLECTOR OU8-30 437091 OU SQUARE FAN GUARD 433705...
  • Page 124 EXPLODED VIEWS AND SPARE PARTS LISTS 15.29 Outdoor Unit: OU8-30 RC 3PH Service Manual - DNG Series Revision Y05-01 15-27 CONTENT...
  • Page 125 EXPLODED VIEWS AND SPARE PARTS LISTS 15.30 Outdoor Unit: OU8-30 RC 3PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 402930 SIDE PANEL OU8-33 436357 SMALL ELECTRICAL COVER OU 439929 FRONT PANEL/COLLECTOR OU8-30 437091 OU SQUARE FAN GUARD 433294 NEW BASE ASSY OU 2005 EXPORT 433807...
  • Page 126 EXPLODED VIEWS AND SPARE PARTS LISTS 15.31 Outdoor Unit: OU8-30 ST 3PH Service Manual - DNG Series Revision Y05-01 15-29 CONTENT...
  • Page 127 EXPLODED VIEWS AND SPARE PARTS LISTS 15.32 Outdoor Unit: OU8-30 ST 3PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 402930 SIDE PANEL OU8-33 436357 SMALL ELECTRICAL COVER OU 439929 FRONT PANEL/COLLECTOR OU8-30 437091 OU SQUARE FAN GUARD 433705 NEW BASE ASSY OU 2005 LOCAL 433834...
  • Page 128 EXPLODED VIEWS AND SPARE PARTS LISTS 15.33 Outdoor Unit: OU10-36 RC 1PH Service Manual - DNG Series Revision Y05-01 15-31 CONTENT...
  • Page 129 EXPLODED VIEWS AND SPARE PARTS LISTS 15.34 Outdoor Unit: OU10-36 RC 1PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 439655 SIDE PANEL OU10 436357 SMALL ELECTRICAL COVER OU 439653 FRONT PANEL OU10 439662 GRILLE OU10 433294 NEW BASE ASSY OU 2005 EXPORT 433854...
  • Page 130 EXPLODED VIEWS AND SPARE PARTS LISTS 15.35 Outdoor Unit: OU10-36 ST 1PH Service Manual - DNG Series Revision Y05-01 15-33 CONTENT...
  • Page 131 EXPLODED VIEWS AND SPARE PARTS LISTS 15.36 Outdoor Unit: OU10-36 ST 1PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 439655 SIDE PANEL OU10 436357 SMALL ELECTRICAL COVER OU 439653 FRONT PANEL OU10 439662 GRILLE OU10 433705 NEW BASE ASSY OU 2005 LOCAL 433868...
  • Page 132 EXPLODED VIEWS AND SPARE PARTS LISTS 15.37 Outdoor Unit: OU10-36 RC 3PH Service Manual - DNG Series Revision Y05-01 15-35 CONTENT...
  • Page 133 EXPLODED VIEWS AND SPARE PARTS LISTS 15.38 Outdoor Unit: OU10-36 RC 3PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 439655 SIDE PANEL OU10 436357 SMALL ELECTRICAL COVER OU 439653 FRONT PANEL OU10 439662 GRILLE OU10 433294 NEW BASE ASSY OU 2005 EXPORT 433854...
  • Page 134 EXPLODED VIEWS AND SPARE PARTS LISTS 15.39 Outdoor Unit: OU10-36 ST 3PH Service Manual - DNG Series Revision Y05-01 15-37 CONTENT...
  • Page 135 EXPLODED VIEWS AND SPARE PARTS LISTS 15.40 Outdoor Unit: OU10-36 ST 3PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 439655 SIDE PANEL OU10 436357 SMALL ELECTRICAL COVER OU 439653 FRONT PANEL OU10 439662 GRILLE OU10 433705 NEW BASE ASSY OU 2005 LOCAL 433868...
  • Page 136 EXPLODED VIEWS AND SPARE PARTS LISTS 15.41 Outdoor Unit: OU10-44 RC 3PH Service Manual - DNG Series Revision Y05-01 15-39 CONTENT...
  • Page 137 EXPLODED VIEWS AND SPARE PARTS LISTS 15.42 Outdoor Unit: OU10-44 RC 3PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 439655 SIDE PANEL OU10 436357 SMALL ELECTRICAL COVER OU 439653 FRONT PANEL OU10 439662 GRILLE OU10 439833 NEW BASE ASSY OU EXPORT 433875...
  • Page 138 EXPLODED VIEWS AND SPARE PARTS LISTS 15.43 Outdoor Unit: OU10-44 ST 3PH Service Manual - DNG Series Revision Y05-01 15-41 CONTENT...
  • Page 139 EXPLODED VIEWS AND SPARE PARTS LISTS 15.44 Outdoor Unit: OU10-44 ST 3PH Drawing Number Item Code Item Description Quantity 437045 UPPER COVER EL13 OU LARGE 439655 SIDE PANEL OU10 436357 SMALL ELECTRICAL COVER OU 439653 FRONT PANEL OU10 439662 GRILLE OU10 439841 NEW BASE ASSY OU LOCAL 433876...

  • Page 140: Appendix A

    APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► INSTALLATION AND OPERATION MANUAL DNG 18, 24, 30, 37, 44 16-1 Service Manual - DNG Series Revision Y05-01 CONTENT...
  • Page 141 PROGRAMMING AND OPERATING MANUAL APPENDIX A...
  • Page 142 CONTENTS MODES OF OPERATION, FUNCTIONS AND FEATURES IF YOUR AIR CONDITIONER IS FOR COOLING ONLY, USE OF REMOTE CONTROL PLEASE DISREGARD THE HEATING INSTRUCTIONS REMOTE CONTROL PLEASE READ THESE OPERATION PROCEDURE INSTRUCTIONS BEFORE Turning on the air conditioner OPERATING THE AIR CONDITIONER Ventilating operation Cooling operation...
  • Page 143 OPERATION MODES, FUNCTIONS AND FEATURES Cools, dehumidifies and filters the room air. Maintains the desired COOL room temperature. Heats and filters the room air. Maintains the desired room temperature. HEAT Automatically switches from COOLING to HEATING or from HEATING to AUTO COOLING, maintaining the desired temperature according to the room conditions.
  • Page 144 The air louvre is automatically positioned for the most suitable blow-out angle, AUTO LOUVRE when COOL, HEAT, DRY or FAN modes are selected. When the air conditioner is turned off, the louvre will close automatically providing an aesthetic appearance. Note: applicable on some models only. Automatic swing of supply air in vertical direction.

  • Page 145: Use Of Remote Control

    USE OF WIRELESS REMOTE CONTROL PRIOR TO OPERATION Prior to operating your air conditioner, make sure that: The red tab protecting the remote control batteries has been removed. For clock setting see page 8. REMOTE CONTROL HOLDER Use the remote control holder when unit is not in use.

  • Page 146: Remote Control

    REMOTE CONTROL START/STOP button Operation mode selection button COOLING HEATING AUTO COOL / HEAT I FEEL temperature sensing mode button FAN SPEED and AUTO FAN button Room temperature UP button Room temperature DOWN button SLEEP button Airflow direction MANUAL positioning control button* Airflow direction AUTO- CONTROL button*...

  • Page 147: Operation Procedure

    OPERATION PROCEDURE TURNING ON THE AIR CONDITIONER Press START/STOP button (1) to turn the air conditioner on. Note that the LCD operation display (13) will always show the last mode of operation and previous function used. Follow the instructions if you choose to change the control settings; otherwise, the air conditioner will start and operate in the same mode and functions prior to being turned off.

  • Page 148: Auto Cooling/Heating Operation

    AUTO COOLING/HEATING OPERATION Select the AUTO mode by pressing MODE button (2). Switch to the desired FAN SPEED or to AUTO FAN by pressing button (4). Select suitable temperature setting. The air flap will automatically move to either horizontal air delivery for cooling or to vertical air delivery for heating. At start, the air conditioner will select its mode of operation according to the room temperature and the temperature setting.

  • Page 149: Timer Operation

    TIMER OPERATION Press TIMER select button (10) to activate the timed operation mode. Each time the TIMER button (10) is pressed, one of the following four types of operation modes will appear on the LCD display. The operation modes are sequenced in the direction of arrow.

  • Page 150: Air Direction Operation

    AIR DIRECTION OPERATION (on some models only) 1. Air Direction Positioning Press button (8) to position the air flap to any desired angle. 2. Automatic Vertical Air Swing Press button (9) to activate the auto air swing. Press button (8) to deactivate this function.
  • Page 151 Comfort Range - Komfort Klimageräte Cooling only Heatpump APPENDIX A...
  • Page 152 INFRARED REMO TE CONTROL RECEIVER COOL: Cooling LED HEAT : Heating LED TIMER : T imer active Operation LED. Comes on when the system is operating. OPER : Flashes to indicate reception of an infrared signal. Standby LED . Lit when the system is connected and STBY: ready to receive commands from the remote control unit.
  • Page 153 CENTRAL AIR CONDITIONER WITH ELECTRONIC CONTROL SPLIT SYSTEM SERIES DNG INSTALLATION INSTRUCTIONS APPENDIX A...

  • Page 154: Getting Started

    Getting started... ATTENTION 1. Selection of the units location. R E Q U I R E D T O O L S L I S T Select a location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance. 1.

  • Page 155: Installation/Service Tooling

    Changes Installation/Service Tooling for R410A Gauge manifold As the working pressure is high, it is impossible to measure the working pressure using conventional gauges. In order to prevent any other refrigerant from being charged, the port diameters have been changed. Charge hose In order to increase pressure resisting strength, hose materials and port sizes have been changed (to 1/2 UNF 20 threads per inch).

  • Page 156: General Information

    GENERAL INFORMATION Indoor Unit Liquid line Suction line Connecting Cable Drainaged tube Outdoor Unit Connecting Cable Suction valve Liquid valve MAXIMUM PIPES LENGTH & HEIGHT CAP. TUBES O.D LENGTH (A) HEIGHT (B) 15/25* 1/4”-1/2” 30/50* 15/25* 3/8”-5/8” 30/50* 3/8”-5/8” 10.5kw 3/8”-3/4”...

  • Page 157: General Precautions

    GENERAL PRECAUTIONS Always use the support of a large radius Do not leave nuts of gas tubes Do not untie gas tubes after installation cylinder for banding the tubes, using pipe uncovered bending tools Avoid placing the indoor unit near water Avoid pipes bending and Making of a water trap (Siphon) or oily mist.

  • Page 158: Indoor Unit

    INDOOR UNIT UNIT LOCATION UNIT DIMENTIONS While selecting a place for the indoor unit: a. Allow max. air flow to the desired space b. Allow max return air flow c. Ensure adequate drainage of condensed water d. Ensure noise reduction near bedrooms e.

  • Page 159: Drainage Installtion

    DRAINAGE INSTALLATION For an efficient functioning of the drainage system please take care of the following: a. Since the drainage basin bottom is sloppy, Alleyways balance the unit by the suspension brackets and not by the drainage basin itself. b. Always lay the drain with downward inclination 2%. Prevent any upward flow or reverse flow in any part.

  • Page 160: Outdoor Unit

    OUTDOOR UNIT UNIT DIMENSIONS CLEARENS AROUND THE UNIT 5 CM 5 CM 25 CM 1 0 0 CAP. 5 Kw 6 Kw 9 Kw 10-13 Kw 14-16 Kw 1250 SEVERAL OUTDOORS INSTALATION When installing several outdoors units please take into account the air flow around the units and follow the minimum distance suggestions as shown in the diagrams bellow.

  • Page 161: Pipes Connections

    PIPES CONNECTIONS CUTTING AND FLARING THE PIPES 1. Please use the pipe cutter for cutting the pipes. To cut Surface Uneven 2. Remove all burrs by using reamer. Gas leakage might damaged thickness happen If burrs are not removed ! Turn pipes edge down to avoid metal powder from Coppet pipe entering down the pipes.

  • Page 162: Electrical Connections

    ELECTRICAL CONNECTIONS E L E C T R I C A L S P E C I F I C A T I O N S POWER SUPPLY 1PH UNITS 3PH UNITS NOMINAL VOLTAGE LIMITS POWER SUPPLY CAP. CIRCUIT BRAKER CAP.

  • Page 163: Display Control Unit

    DISPLAY CONTROL UNIT WARNING The plug should not be cut off the communication cable if the cable length is insufficient. In such case, a 5-meter extension cable may be added. CONSIDERATIONS IN LOCATING THE REMOTE CONTROL UNIT a) Locate the Remote Control Unit in such a way that when mounted on its support on the wall, it will be in line sight with the Display Control Unit (at less than 8 m).

  • Page 164: Check List Before Operation

    Check list before operation AIR VOLUME/STATIC PRESSURE Static pr. (Pa) /Hr) /Hr) /Hr) /Hr) /Hr) /Hr) /Hr) /Hr) /Hr) /Hr) Air Volume 1090 1060 1040 1020 High 5 Kw 1170 1140 1120 1095 High 1105 1090 1050 1040 7 Kw 1340 1300 1275...

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