Airwell CAD024 Service Manual
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Airwell CAD024 Service Manual

Airwell CAD024 Service Manual

Yud series
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CAD024
CAD030
CAD036
CAD036
CAD042
REFRIGERANT
SM YUD 2-A.1 GB
Version:2
YUD Series
Indoor Units
DBD024
DBD030
DBD036
DBD036
DBD048
DBD060
R410A
Outdoor Units
FAD024
FAD030
FAD036
FAD036
FAD048
JAN - 2012
YUD024
YUD030
YUD036
YUD036T
YUD042
YUD048
YUD060
HEAT PUMP

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Summary of Contents for Airwell CAD024

  • Page 1 YUD Series Indoor Units Outdoor Units CAD024 DBD024 FAD024 YUD024 CAD030 DBD030 FAD030 YUD030 CAD036 DBD036 FAD036 YUD036 CAD036 DBD036 FAD036 YUD036T CAD042 YUD042 DBD048 FAD048 YUD048 DBD060 YUD060 REFRIGERANT R410A HEAT PUMP SM YUD 2-A.1 GB JAN - 2012...
  • 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 ......................... 5-1 AIRFLOW CURVES........................6-1 ELECTRICAL DATA........................7-1 WIRING DIAGRAMS ........................8-1 REFRIGERATION DIAGRAMS ...................... 9-1 TUBING CONNECTIONS ....................... 10-1 CONTROL SYSTEM ........................

  • Page 4: Introduction

    INTRODUCTION INTRODUCTION General The YUD/VUD series DC inverter is major designed for light commercial air- conditioning needs with the DC inverter technology, this series of products provides the most comfort and energy saving. The outdoor can match following indoors: -Indoor Floor/Ceiling DCI: 4 sizes including 24/30/36/48kBtu/h -Indoor Cassette DCI: 4 sizes including 24/30/36/42kBtu/h -Indoor Ducted DCI:5 sizes including 24/30/36/48/60kBtu/h The outdoor unit has two options of 1 phase/3 phases:...

  • Page 5: Indoor Unit

    INTRODUCTION Indoor Unit The CAD indoor unit is ceiling mounted, the FAD indoor unit is ceiling or floor mounted, the DBD indoor unit is a low silhouette ducted unit and can be easily fitted to many types of residential and commercials applications. It includes: •...

  • Page 6: Outdoor Unit

    INTRODUCTION Outdoor Unit The outdoor units can be installed as floor or wall mounted units by using a wall supporting bracket. The metal sheets are protected by anti- corrosion paint work allowing long life resistance. All outdoor units are pre-charged. For further information please refer to the Product Data Sheet, Chapter 2.
  • Page 7 INTRODUCTION 1.10 Matching Table INDOOR UNITS AWSI-DBD024-N11 AWSI-DBD030-N11 AWSI-DBD036-N11 AWSI-DBD048-N11 AWSI-DBD060-N11 OUTDOOR UNITS AWSI-CAD024-N11 AWSI-CAD030-N11 AWSI-CAD036-N11 AWSI-CAD042-N11 AWSI-FAD024-N11 AWSI-FAD030-N11 AWSI-FAD036-N11 AWSI-FAD048-N11 √ AWAU-YUD024-H11 √ AWAU-YUD030-H11 √ AWAU-YUD036-H11 √ AWAU-YUD036-H13 √ AWAU-YUD042-H13 √ AWAU-YUD048-H13 √ AWAU-YUD060-H13 SM YUD 2-A.1 GB...

  • Page 8: Product Data Sheet

    PRODUCT DATA SHEET PRODUCT DATA SHEET AWSI-DBD024-N11 // AWAU-YUD024-H11 Model Indoor Unit AWSI-DBD024-N11 Model Outdoor Unit AWAU-YUD024-H11 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 22520(6820-26270) 24570(8190-27300) Capacity (4) 6.6(2.0-7.7) 7.2(2.4-8.0) Power input (4) 2.05 2.11 EER (Cooling) or COP(Heating) (4) 3.22 3.41 Energy efficiency class...
  • Page 9 PRODUCT DATA SHEET AWSI-CAD024-N11 // AWAU-YUD024-H11 Model Indoor Unit AWSI-CAD024-N11 Model Outdoor Unit AWAU-YUD024-H11 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 23880(8190-27300) 27980(10580-32070) Capacity (4) 7.0(2.4-8.0) Power input (4) 2.18 2.4(0.74-2.5) EER (Cooling) or COP(Heating) (4) 3.21 3.42...
  • Page 10 PRODUCT DATA SHEET AWSI-FAD024-N11 // AWAU-YUD024-H11 Model Indoor Unit AWSI-FAD024-N11 Model Outdoor Unit AWAU-YUD024-H11 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 22520(10240-26610) 25930(8190-29000) Capacity (4) 6.6(3.0-7.8) 7.6(2.4-8.5) Power input (4) 2.05 EER (Cooling) or COP(Heating) (4) 3.22 3.45 Energy efficiency class 220-240...
  • Page 11 PRODUCT DATA SHEET AWSI-DBD030-N11 // AWAU-YUD030-H11 Model Indoor Unit AWSI-DBD030-N11 Model Outdoor Unit AWAU-YUD030-H11 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 26610(9210-28320) 27980(6820-31730) Capacity (4) 7.8(2.7-8.3) 8.2(2.0-9.3) Power input (4) EER (Cooling) or COP(Heating) (4) 3.42 Energy efficiency class 220-240 Power supply Rated current...
  • Page 12 PRODUCT DATA SHEET AWSI-CAD030-N11 // AWAU-YUD030-H11 Model Indoor Unit AWSI-CAD030-N11 Model Outdoor Unit AWAU-YUD030-H11 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 29340(10240-31050) 30710(8530-33780) Capacity (4) 8.6(3.0-9.1) 9.0(2.5-9.9) Power input (4) 2.49 EER (Cooling) or COP(Heating) (4) 3.31 3.61 Energy efficiency class 220-240...
  • Page 13 PRODUCT DATA SHEET AWSI-FAD030-N11 // AWAU-YUD030-H11 Model Indoor Unit AWSI-FAD030-N11 Model Outdoor Unit AWAU-YUD030-H11 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 29340(10580-32380) 30710(9210-33780) Capacity (4) 8.6(3.1-9.49) 9.0(2.7-9.9） Power input (4) 2.49 EER (Cooling) or COP(Heating) (4) 3.31 3.61 Energy efficiency class 220-240...
  • Page 14 PRODUCT DATA SHEET AWSI-DBD036-N11 // AWAU-YUD036-H11 Model Indoor Unit AWSI-DBD036-N11 Model Outdoor Unit AWAU-YUD036-H11 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 33780(11940-39240) 37530(12970-43670) Capacity (4) 9.9(3.5-11.5) 11.0(3.8-12.8) Power input (4) 3.05 EER (Cooling) or COP(Heating) (4) 3.00 3.61 Energy efficiency class 220-240...
  • Page 15 PRODUCT DATA SHEET AWSI-CAD036-N11 // AWAU-YUD036-H11 Model Indoor Unit AWSI-CAD036-N11 Model Outdoor Unit AWAU-YUD036-H11 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 32760(10240-39240) 35830(11940-43670) Capacity (4) 9.6(3.0-11.5) 10.5(3.5-12.8) Power input (4) 3.15 EER (Cooling) or COP(Heating) (4) 3.33 Energy efficiency class 220-240 Power supply...
  • Page 16 PRODUCT DATA SHEET AWSI-FAD036-N11 // AWAU-YUD036-H11 Model Indoor Unit AWSI-FAD036-N11 Model Outdoor Unit AWAU-YUD036-H11 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 34120(11940-44360) 37530(11940-44360) Capacity (4) 10.0(3.5-13.0) 11.0(3.5-13.0) Power input (4) 3.32 3.05 EER (Cooling) or COP(Heating) (4) 3.01 3.61 Energy efficiency class...
  • Page 17 PRODUCT DATA SHEET 2.10 AWSI-DBD036-N11 // AWAU-YUD036-H13 Model Indoor Unit AWSI-DBD036-N11 Model Outdoor Unit AWSI-YUD036-H13 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 33780(11940-39240) 37530(12970-43670) Capacity (4) 9.9(3.5-11.5) 11.0(3.8-12.8) Power input (4) 3.05 EER (Cooling) or COP(Heating) (4) 3.00 3.61 Energy efficiency class...
  • Page 18 PRODUCT DATA SHEET 2.11 AWSI-CAD036-N11 // AWAU-YUD036-H13 Model Indoor Unit AWSI-CAD036-N11 Model Outdoor Unit AWAU-YUD036-H13 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 32760(10240-39240) 35830(11940-43670) Capacity (4) 9.6(3.0-11.5) 10.5(3.5-12.8) Power input (4) 3.15 EER (Cooling) or COP(Heating) (4) 3.00 3.33 Energy efficiency class...
  • Page 19 PRODUCT DATA SHEET 2.12 AWSI-FAD036-N11 // AWAU-YUD036-H13 Model Indoor Unit AWSI-FAD036-N11 Model Outdoor Unit AWAU-YUD036-H13 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 34120(11940-44360) 37530(11940-42650) Capacity (4) 10.0(3.5-13.0) 11.0(3.5-12.5) Power input (4) 3.32 3. 05 EER (Cooling) or COP(Heating) (4) 3.01 3.61 Energy efficiency class...
  • Page 20 PRODUCT DATA SHEET 2.13 AWSI-CAD042-N11 // AWAU-YUD042-H13 Model Indoor Unit AWSI-CAD042-N11 Model Outdoor Unit AWAU-YUD042-H13 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 36850(11940-44360) 40260(12970-49470) Capacity (4) 10.8(3.5-13.0) 11.8(3.8-14.5) Power input (4) 3.44 3.45 EER (Cooling) or COP(Heating) (4) 3.14 3.42 Energy efficiency class...
  • Page 21 PRODUCT DATA SHEET 2.14 AWSI-DBD048-N11 // AWAU-YUD048-H13 Model Indoor Unit AWSI-DBD048-N11 Model Outdoor Unit AWSI-YUD048-H13 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 47770(16720-48110) 56300(18080-62440) Capacity (4) 14.0(4.9-14.1) 16.5(5.3-18.3) Power input (4) 4.37 4.58 EER (Cooling) or COP(Heating) (4) 3.20 3.60 Energy efficiency class...
  • Page 22 PRODUCT DATA SHEET 2.15 AWSI-FAD048-H11 // AWAU-YUD048-H13 Model Indoor Unit AWSI-FAD048-N11 Model Outdoor Unit AWSI-YUD048-H13 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 47770(16720-48110) 56300(18080-62780) Capacity (4) 14.0(4.9-14.1) 16.5(5.3-18.4) Power input (4) 4.37 4.58 EER (Cooling) or COP(Heating) (4) 3.20 3.60 Energy efficiency class...
  • Page 23 PRODUCT DATA SHEET 2.16 AWSI-DBD060-H11 // AWAU-YUD060-H13 Model Indoor Unit AWSI-DBD060-N11 Model Outdoor Unit AWSI-YUD060-H13 Installation Method of Pipe Flared Characteristics Units Cooling Heating Btu/hr 58000(13650-59710) 61420(17060-64150) Capacity (4) 17.0(4.0-17.5) 18.0(5.0-18.8) Power input (4) EER (Cooling) or COP(Heating) (4) 3.21 3.60 Energy efficiency class 380-415...

  • Page 24: 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 R410A Indoor Outdoor...

  • Page 25: Outline Dimensions

    OUTLINE DIMENSIONS OUTLINE DIMENSIONS OUTLINE DIMENSIONS Unit:mm Unit:mm Model Model CAD024 CAD030/036/042 DBD 024/030/036/048 Unit: mm DBD024/030 1101 1159 1270 1002 DBD036 1011 1115 1226 DBD048 1015 1115 1226 SM YUD 2-A.1 GB...
  • Page 26 OUTLINE DIMENSIONS DBD 060 Unit: mm Model DBD060 1353 1150 1463 Unit: mm Model FAD024 1158 1220 FAD030/036 1354 1420 FAD048 1634 1700 SM YUD 2-A.1 GB...
  • Page 27 OUTLINE DIMENSIONS Outdoor Unit: 4.5.1 Outdoor unit: YUD 024/030 4.5.2 Outdoor unit: YUD 036/042 SM YUD 2-A.1 GB...

  • Page 28: Outdoor Unit: Yud

    OUTLINE DIMENSIONS 4.5.3 Outdoor unit: YUD 048/060 SM YUD 2-A.1 GB...

  • Page 29: Performance Data

    PERFORMANCE DATA PERFORMANCE DATA AWAU-YUD024-H11 5.1.1 Cooling Capacity (kW) Entering Air Data Entering Air WB/DB ID Coil( DB OD 15/21 17/24 19/27 21/29 23/32 Coil( 6.67 7.06 7.39 7.72 7.99 4.75 5.05 5.34 5.18 5.29 1.57 1.58 1.59 1.60 1.60 6.40 6.86 7.26...
  • Page 30 PERFORMANCE DATA 5.1.3 Heating Capacity (kW) ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 3.78 1.69 3.64 1.80 3.49 1.89 4.07 1.73 3.92 1.83 3.78 1.92 4.32 1.75 4.18 1.86 4.03 1.96 5.26 1.84 5.04 1.95 4.82 2.07 7.42 1.97 7.20 2.11...
  • Page 31 PERFORMANCE DATA AWAU-YUD030-H11 5.2.1 Cooling Capacity (kW) Entering Air Data Entering Air WB/DB ID Coil( DB OD 15/21 17/24 19/27 21/29 23/32 Coil( 7.88 8.35 8.74 9.13 9.44 5.62 5.97 6.31 6.12 6.26 1.99 2.00 2.02 2.03 2.03 7.57 8.11 8.58 8.97 9.28...
  • Page 32 PERFORMANCE DATA 5.2.3 Heating Capacity (kW) ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 4.31 1.92 4.14 2.04 3.98 2.15 4.63 1.97 4.47 2.08 4.31 2.19 4.92 1.99 4.76 2.11 4.59 2.23 5.99 2.09 5.74 2.22 5.49 2.35 8.45 2.24 8.20 2.40...
  • Page 33 PERFORMANCE DATA AWAU-YUD036-H11 5.3.1 Cooling Capacity (kW) Entering Air Data Entering Air WB/DB ID Coil( DB OD 15/21 17/24 19/27 21/29 23/32 Coil( 10.00 10.59 11.09 11.58 11.98 7.13 7.57 8.01 7.77 7.94 2.53 2.54 2.56 2.57 2.58 9.60 10.30 10.89 11.39 11.78...
  • Page 34 PERFORMANCE DATA 5.3.3 Heating Capacity (kW) ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 5.78 2.44 5.56 2.60 5.34 2.73 6.22 2.50 6.00 2.64 5.78 2.78 6.60 2.53 6.38 2.68 6.16 2.84 8.03 2.65 7.70 2.82 7.37 2.99 11.33 2.85 11.00 3.05...
  • Page 35 PERFORMANCE DATA AWAU-YUD036-H13 5.4.1 Cooling Capacity (kW) Entering Air Data Entering Air WB/DB ID Coil( DB OD 15/21 17/24 19/27 21/29 23/32 Coil( 10.00 10.59 11.09 11.58 11.98 7.13 7.57 8.01 7.77 7.94 2.53 2.54 2.56 2.57 2.58 9.60 10.30 10.89 11.39 11.78...
  • Page 36 PERFORMANCE DATA 5.4.3 eating Capacity (kW) ENTE RING AIR DB ID COIL( ENTERING WB OD OIL( 5.78 2.44 5.56 2.60 5.34 2.73 6.22 2.50 6.00 2.64 5.78 2.78 6.60 2.53 6.38 2.68 6.16 2.84 8.03 2.65 7.70 2.82 7.37 2.99 11.33 2.85 11.00...
  • Page 37 PERFORMANCE DATA AWAU-YUD042-H13 5.5.1 Cooling Capacity (kW) Entering Air Data Entering Air WB/DB ID Coil( DB OD 15/21 17/24 19/27 21/29 23/32 Coil( 10.91 11.56 12.10 12.64 13.07 7.78 8.26 8.73 8.48 8.66 2.64 2.65 2.67 2.68 2.69 10.48 11.23 11.88 12.42 12.85...
  • Page 38 PERFORMANCE DATA 5.5.3 Heating Capacity (kW) ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 6.20 2.76 5.96 2.94 5.72 3.09 6.67 2.83 6.43 2.98 6.20 3.15 7.08 2.86 6.84 3.04 6.61 3.21 8.61 3.00 8.26 3.19 7.91 3.38 12.15 3.23 11.80 3.45...
  • Page 39 PERFORMANCE DATA AWAU-YUD048-H13 5.6.1 Cooling Capacity (kW) Entering Air Data Entering Air WB/DB ID Coil( DB OD 15/21 17/24 19/27 21/29 23/32 Coil( 14.14 14.98 15.68 16.38 16.94 10.08 10.71 11.32 10.99 11.23 3.35 3.37 3.39 3.41 3.42 13.58 14.56 15.40 16.10 16.66...
  • Page 40 PERFORMANCE DATA 5.6.3 Heating Capacity (kW) ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 8.66 3.66 8.33 3.90 8.00 4.10 9.32 3.76 8.99 3.96 8.66 4.18 9.90 3.80 9.57 4.03 9.24 4.26 12.05 3.98 11.55 4.24 11.06 4.49 17.00 4.28 16.50 4.58...
  • Page 41 PERFORMANCE DATA AWAU-YUD060-H13 5.7.1 Cooling Capacity (kW) Entering Air Data Entering Air WB/DB ID Coil( DB OD 15/21 17/24 19/27 21/29 23/32 Coil( 17.17 18.19 19.04 19.89 20.57 12.24 13.01 13.75 13.35 13.64 4.07 4.09 4.11 4.13 4.14 16.49 17.68 18.70 19.55 20.23...
  • Page 42 PERFORMANCE DATA 5.7.3 Heating Capacity (kW) ENTERING AIR DB ID COIL( ENTERING WB OD COIL( 9.45 4.00 9.09 4.26 8.73 4.48 10.17 4.10 9.81 4.33 9.45 4.56 10.80 4.15 10.44 4.40 10.08 4.65 13.14 4.35 12.60 4.63 12.06 4.90 18.54 4.68 18.00 5.00...
  • Page 43 PERFORMANCE DATA Capacity Correction Factor Due to Tubing Length 5.8.1 Cooling TOTAL TUBING LENGTH Model 7.5m 1.02 0.98 0.96 0.95 0.95 0.93 0.91 0.89 Minimum recommended tubing length between indoor and outdoor units is 3m. 5.8.2 Heating TOTAL TUBING LENGTH Model 7.5m 1.02...

  • Page 44: Airflow Curves

    PRESSURE CURVES AIRFLOW CURVES AIRFLOW CURVES Model: AWSI-DBD024-N11 Model: AWSI-DBD024-N11 Nominal System Curve Max System Curve Airflow Vs. External Static Pressure High speed Medium Speed Low Speed Operating Range Performance test point at 50 Pa 1000 1200 1400 1600 1800 Airflow Rate,(m ³/ hr) Model: AWSI-DBD030-N11...
  • Page 45 PRESSURE CURVES Model: AWSI-DBD036-N11 Nominal System Curve Max System Curve Airflow Vs. External Static Pressure High speed Medium Speed Low Speed Operating Range Performance test point at 50 Pa 1200 1400 1600 1800 2000 2200 2400 2600 Airflow Rate,(m ³/ hr) Model: AWSI-DBD048-N11 Nominal System Curve...
  • Page 46 PRESSURE CURVE Model: AWSI-DBD060-N11 Nominal System Curve Max System Curve Airflow Vs. External Static Pressure High speed Medium Speed Low Speed Operating Range Performance test point at 50 Pa 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 Airflow Rate,(m ³/ hr) SM YUD 2-A.1 GB...

  • Page 47: Electrical Data

    ELECTRICAL DATA ELECTRICAL DATA DATA MODEL MODEL YUD024 YUD024 YUD030 YUD030 YUD036 YUD036 YUD036 YUD036 YUD042 YUD042 YUD048 YUD048 YUD060 YUD060 Separately Power Supply 1PH-220-240V-50Hz 3PH-380-415V-50Hz Capability of Air Switch(A) (Indoor) Capability of Air Switch(A) (Outdoor) Power Supply Wiring No. X Cross Section 3x4.0mm2 5x2.5mm2 5 x4.0mm2...

  • Page 48: Wiring Diagrams

    WIRING DIAGRAMS WIRING DIAGRAMS AWAU-YUD024-H11, AWAU-YUD030-H11 SM YUD 2-A.1 GB...
  • Page 49 WIRING DIAGRAMS AWAU-YUD036-H11 SM YUD 2-A.1 GB...
  • Page 50 WIRING DIAGRAMS AWAU-YUD036-H13 , AWAU-YUD042-H13 SM YUD 2-A.1 GB...
  • Page 51 WIRING DIAGRAMS AWAU-YUD048-H13, AWAU-YUD060-H13 SM YUD 2-A.1 GB...
  • Page 52 WIRING DIAGRAMS AWSI-CAD024-N11 SM YUD 2-A.1 GB...
  • Page 53 WIRING DIAGRAMS AWSI-CAD030/036/042-N11 SM YUD 2-A.1 GB...
  • Page 54 WIRING DIAGRAMS AWSI-FAD024-N11 SM YUD 2-A.1 GB...
  • Page 55 WIRING DIAGRAMS AWSI-FAD030/036/048-N11 SM YUD 2-A.1 GB...
  • Page 56 WIRING DIAGRAMS AWSI-DBD024/030/036/048/060-N11 SM YUD 2-A.1 GB...

  • Page 57: Refrigeration Diagrams

    REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS Cooling Mode Heating Mode SM YUD 2-A.1 GB...

  • Page 58: Tubing Connections

    TUBING CONNECTIONS TUBING CONNECTIONS TUBING CONNECTIONS When the outdoor unit is installed above the indoor unit an oil trap is required every 5m along the suction line at the lowest point of the riser. In case the indoor unit is installed above the outdoor, no trap is required. SM YUD 2-A.1 GB 10-1...

  • Page 59: Control System

    CONTROL SYSTEM CONTROL SYSTEM 11.1 Electronic Control 11.1.1 Abbreviations Abbreviation Definition Air Condition Building Management System System Power Compressor Top Temperature sensor DC Inverter Electronic Expansion Valve Heating Element Human Machine Interface Heat Sink Temperature sensor Hertz (1/sec) – electrical frequency Indoor Coil Temperature (RT2) sensor Indoor Unit Micro Controller Unit...
  • Page 60 CONTROL SYSTEM 2. I control If the operating frequency is not change more than a certain fixed time, adjust the frequency up and down according to the ΔD value. Obtaining the fixed ΔD value When the ΔD value is small- decrease the frequency When the ΔD value is large- increase the frequency 3.
  • Page 61 CONTROL SYSTEM 11.1.5 Indoor Fan Control 3 Indoor fan speeds are determined for each model. The cassette unit indoor fan speed table Unit Model High Medium The floor/ceiling cassette unit indoor fan speed table Unit Model High Medium 1200 1000 1000 1280 1140...

  • Page 62: Fan Mode

    CONTROL SYSTEM 4. Outdoor fan OFF will delay 60sec when compressor is OFF during cooling, dring and heating mode. 11.1.6.3 OFAN control in cooling mode: If HPS2 is cut off (Pressure higher than 3.0Mpa), the OFAN will go to high fan speed. If the HPS2 is recovery (pressure is 2.4MPa), the OFAN speed will reduce by 1 speed until the pressure is reaching 3.0MPa.

  • Page 63: Heat Mode

    CONTROL SYSTEM 11.3.1 Indoor Fan operation under Cool Mode The indoor fan will run at high speed for 5 seconds before it is put into operation according to the setting then run at the setting speed. In Auto Fan user setting, fan speed will be adjusted automatically according to the SPT and RAT, refer to 11.1.5 11.4 Heat Mode...

  • Page 64: Dry Mode

    CONTROL SYSTEM 11.4.1 Indoor Fan Control in Heat Mode Indoor fan speed depends on the indoor coil temperature Anti-cold air function When starting the heating mode, anti-cold air function will be activated and indoor fan can run at low speed or stop running. This function will terminate after the unit runs for 1.5min. Residual heat blowing function During heating, when the stopping condition for the compressor is reached.
  • Page 65 CONTROL SYSTEM When the unit is operating in low frequency for long time, the compressor will be forced to decrease frequency for 4 min to make sure the oil, which accumulated into the system, back to compressor. During the oil return operation, the IDU has no any indication 11.8 Protections There are 4 protection codes.
  • Page 66 CONTROL SYSTEM 11.5 11.5 14.5 14.5 11.8.5 Outdoor Coil Deicing Protection This protection is for Heat Pump Only This protection is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor heat exchanger temperature must be more than its setting values when finishing the deicing protection.
  • Page 67 CONTROL SYSTEM 11.8.6 Condensate Water Over Flow Protection for cassette Outdoor unit receives “overflow’ signal from the indoor side. In cooling and dry mode, the pump is always on with the compressor on. And the pump will be on for 10 min after the compressor is off, in heating mode, the pump is off except that the overflow fault occurs.
  • Page 68 CONTROL SYSTEM The Over Load Protector is used to detect the compressor's shell temperature. If the compressor temperature rises above a certain level, the compressor OLP will be cut off. Which will happen within 3 seconds continuously, the unit will stop and report fault. The unit will restart after 3 min if the fault is eliminated.
  • Page 69 CONTROL SYSTEM POWER Lights up when the unit is connected to power COOL Lights up when the unit is running in cooling mode HEAT Lights up when the unit is running in heat mode Timer icon Lights up when the timer is set 11.11 Forced Mode (Compulsory operating function) Entering into forced mode :...

  • Page 70: Characteristics Of Sensor

    CONTROL SYSTEM 11.12 Characteristics of sensor 11.12.1 RAT/OAT RAT/OAT R-T chart Temperature(C) 11.12.2 ICT/OCT ICT/OCT R-T Chart Temperature(C) 11-12 SM YUD 2-A.1 GB...
  • Page 71 CONTROL SYSTEM 11.12.3 CTT R-T Chart Temperature(C) SM YUD 2-A.1 GB 11-13...

  • Page 72: Troubleshooting

    TROUBLESHOOTING TROUBLESHOOTING 12.1 ELECTRICAL & CONTROL TROUBLESHOOTING 12.1.1 Precautions before Performing Inspection or Repair Be cautious during installation and maintenance. Do operation following the regulations to avoid electric shock and casualty or even death due to drop from high attitude. * Static maintenance is the maintenance during de-energization of the air conditioner.
  • Page 73 TROUBLESHOOTING 12.1.3 Judgment by Indoor/Outdoor Unit Diagnostics The error code will be directly displayed through indoor display and wired controller. 12.1.3.1 Indoor Unit Diagnostics Error code Malfunction Water Pump failure High-pressure switch protection Defrost protection Low-pressure switch protection Compressor over heating protection Compressor overload protection Communication malfunction Water overflow protection...
  • Page 74 TROUBLESHOOTING 12.1.3.3 Outdoor Unit Diagnostics Outdoor unit display of dual 8 Malfunction Item Indoor Unit Display numeral tube DC over voltage protection Heat sink overheating protection Current sensor failure HST failure Compressor phase current detection problem DC under voltage protection Compressor startup failure PFC protection Compressor lock...
  • Page 75 TROUBLESHOOTING 12.1.3.4 Outdoor Unit Diagnostics and Corrective Actions Indoor Failure Possible Reasons/Corrective actions indicators indicators AC power supply is higher than 265V DC over voltage protection Outdoor PCB circuit malfunction Insufficient grease on heatsink or poor connection of Heat sink overheating heatsink to PCB protection Outdoor PCB problem.
  • Page 76 TROUBLESHOOTING Connection of compressor OLP is loosen (the resistance Compressor over load for this terminal should be less than 1ohm) protection EEV connection problem or damaged/Capillary problem Refrigerant leakage Wiring mistakes Communication malfunction IDU or ODU PCB problem OAT failure Senor was broken or damaged OCT failure PCB temperature detection circuit has problem...

  • Page 77: Exploded Views And Spare Part Lists

    SPARE PARTS LIST EXPLODED VIEWS AND SPARE PART LISTS 13.1 Exploded view of Indoor unit: DBD024 SM YUD 2-A.1 GB 13-1...
  • Page 78 SPARE PARTS LIST 13.2 Spare part list of Indoor Unit: DBD024 Part Code Part Description 11125304 Filter 111200515 Filter 11125303 Filter Sub-assy 01265301 Top Cover 01025301 Evaporator Assy 01315304 Right Side Plate 01325301 Fan Fixed Plate 15012454 Motor(left) SYP-160/200J 15705304 Fan motor 15012458 Motor(right) SYP-160/200J...
  • Page 79 SPARE PARTS LIST 13.3 Exploded view of Indoor unit: DBD024-060 SM YUD 2-A.1 GB 13-3...
  • Page 80 SPARE PARTS LIST 13.4 Spare part list of Indoor Unit: DBD030 Part Code Part Description 11125304 Filter 111200515 Filter 11125303 Filter Sub-assy 01265301 Top Cover 01315293 Left Side Plate Assy 15012454 Motor(left) SYP-160/200J 15705304 Fan motor 15012458 Motor(right) SYP-160/200J 01325301 Fan Fixed Plate 01495304 Seal of Connection Pipe...
  • Page 81 SPARE PARTS LIST 13.5 Exploded view of Indoor unit: DBD036 SM YUD 2-A.1 GB 13-5...
  • Page 82 SPARE PARTS LIST 13.6 Spare part list of Indoor Unit: DBD036 Part Code Part Description 111253031 air filter 01495306 Seal of Connection Pipe 01315306 Left Side Plate 01265306 Top Cover 3900012123 Temperature Sensor (15K black) 390001921 Tube Sensor (20K black) 01395776 Electric Box Assy 30228205...
  • Page 83 SPARE PARTS LIST 13.7 Exploded view of Indoor unit: DBD060 SM YUD 2-A.1 GB 13-7...
  • Page 84 SPARE PARTS LIST 13.8 Spare part list of Indoor Unit: DBD060 Part Code Part Description 01315374 Front Side Plate Sub-Assy 01804715 Motor Support Sub-Assy 1570523001 Fan Motor 15705306 Fan motor (Left type) 01285283 Water tray assy 01265357 Lower cover plate assy 76510021 Cable-Cross Loop 01315378...
  • Page 85 SPARE PARTS LIST 13.9 Exploded view of Indoor unit:CAD024 SM YUD 2-A.1 GB 13-9...
  • Page 86 SPARE PARTS LIST 13.10 Spare part list of Indoor Unit: CAD024 Part Code Part Description 01382715 Tube Exit Plate Assy 01432703 Shell Assy 01702701 Motor Mounting Rack 01222701 Base Plate Assy 01302716 Right Side Plate 01302714 Rear Side Plate 15709404...
  • Page 87 SPARE PARTS LIST 13.11 Exploded view of Indoor unit:CAD030 SM YUD 2-A.1 GB 13-11...
  • Page 88 SPARE PARTS LIST 13.12 Spare part list of Indoor Unit:CAD030 Part Code Part Description 05010051 Corrugated Pipe φ16 01332701 Major Mounting Plate 42020063 Sensor Insert 01072732 Evaporator Linkage 76712711 Motor Gasket 05232702 Drain Hose Assy 10312701 Fan Fixer 01382715 Tube Exit Plate Assy 03412704 Shell Assy 01702701...
  • Page 89 SPARE PARTS LIST 13.13 Exploded view of Indoor unit:CAD036/042 SM YUD 2-A.1 GB 13-13...
  • Page 90 SPARE PARTS LIST 13.14 Spare part list of Indoor Unit:CAD036 Part Code Part Description 01382715 Tube Exit Plate Assy 01302713 Front Side Plate 01302711 Left Side Plate Assy 01222701 Base Plate Assy 01302709 Rear Side Plate 01702701 Motor Mounting Rack 15012706 Fan Motor 10310101...
  • Page 91 SPARE PARTS LIST 13.15 Spare part list of Indoor Unit:CAD042 Part Code Part Description 01382715 Tube Exit Plate Assy 01302713 Front Side Plate 01302711 Left Side Plate Assy 01222701 Base Plate Assy 01302709 Rear Side Plate 01702701 Motor Mounting Rack 15012706 Fan Motor 10310101...
  • Page 92 SPARE PARTS LIST 13.16 Exploded view of Indoor unit: FAD024 13-16 SM YUD 2-A.1 GB...
  • Page 93 SPARE PARTS LIST 13.17 Spare part list of Indoor Unit:FAD024 Part Code Part Description 01579403 Front Grill sub-assy 01269409 Top Cover Board Sub-assy 01289404 Water Tray Assy 01809417 Supporter 26905206 Rear volute casing 10425200 Centrifugal fan 15709409 Fan Motor 70815201 Bar Clasp sub-assy 70818405 Bar Clasp...
  • Page 94 SPARE PARTS LIST 13.18 Exploded view of Indoor unit: FAD030/036 13-18 SM YUD 2-A.1 GB...
  • Page 95 SPARE PARTS LIST 13.19 Spare part list of Indoor Unit:FAD030 Part Code Part Description 01349408P Front panel 12509424 Front foam assy 26909430 Rotating Shaft 26909432 Guide Louver 26909409 Bracket #3(Guide Louver) 0131941901 Rear side plate assy 1521240206 Step Motor 26909413 Rotating Shaft 26909411 Connecting Rod...
  • Page 96 SPARE PARTS LIST 13.20 Spare part list of Indoor Unit:FAD036 Part Code Part Description 01349408P Front panel 12509424 Front foam assy 26909430 Rotating Shaft 26909432 Guide Louver 26909409 Bracket #3(Guide Louver) 0131941901 Rear side plate assy 1521240206 Step Motor 26909413 Rotating Shaft 26909411 Connecting Rod...
  • Page 97 SPARE PARTS LIST 13.21 Exploded view of Indoor unit: FAD048 SM YUD 2-A.1 GB 13-21...
  • Page 98 SPARE PARTS LIST 13.22 Spare part list of Indoor Unit:FAD048 Part Code Part Description 01579401 Front Grill sub-assy 01269403 Top Cover Board Sub-assy 01289401 Water tray assy 02229408 Spacing Board 26909419 Rear volute casing 73018731 Joint Slack 15709405 Fan Motor 1041410101 Centrifugal fan 73018052...
  • Page 99 SPARE PARTS LIST 13.23 Exploded view of outdoor unit: YUD024 030 SM YUD 2-A.1 GB 13-23...
  • Page 100 SPARE PARTS LIST 13.24 Spare part list of Outdoor Unit YUD024/030 Part Code Part Description 22415003 Front Grill 01435004P Cabinet 26235401 Left Handle 01305086P Front Side Plate 10335005 Axial Flow Fan 1570280202 Fan Motor 01195322P Chassis Sub-assy 765100047 Electrical Heater 00105036 Compressor and fittings 76710207...
  • Page 101 SPARE PARTS LIST 13.25 Exploded view of outdoor unit: YUD036 SM YUD 2-A.1 GB 13-25...
  • Page 102 SPARE PARTS LIST 13.26 Spare part list of Outdoor Unit YUD036 Part Code Part Description 10335010 Axial Flow Fan 1570280201 Fan Motor 01795020 Condenser support plate 01305064P Left Side Plate 26235401 Left Handle 01125392 Condenser Assy 0125500901P Top Cover 01705111 Motor Support Sub-Assy 04655520 Inhalation Tube 1...
  • Page 103 SPARE PARTS LIST 13.27 Exploded view of outdoor unit: YUD036T/YUD042 SM YUD 2-A.1 GB 13-27...
  • Page 104 SPARE PARTS LIST 13.28 Spare part list of Outdoor Unit YUD036T/YUD042: Part Code Part Description 01255009P Top Cover 01355204 Air Guard 01125373 Condenser Assy 01475012 Rear Grill 04145342 4-way Valve Assy 43000338 4-way Valve 46020006 Pressure Protect Switch 3900028002G Temperature Sensor 07334194 Electronic Expansion Valve 07335263...
  • Page 105 SPARE PARTS LIST 13.29 Exploded view of outdoor unit: YUD048/060 SM YUD 2-A.1 GB 13-29...
  • Page 106 SPARE PARTS LIST 13.30 Spare part list of Outdoor Unit: YUD048/YUD060 Part Code Part Description 22415002 Front Grill 01515204P Cabinet 26235253 Handle 01315364P Front Side Plate 10335008 Axial Flow Fan 1570280203 Fan Motor 01195710P Chassis Sub-assy 765100047 Electrical Heater 76815204 Compressor Gasket 00204126 Compressor and fittings...

  • Page 107: Appendix

    APPENDIX APPENDIX APPENDIX SM YUD 2-A.1 GB 14-1...

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