Shinko STB-48CWN1 Technical Manual

Commercial Air Conditioners R410A

1 Content Part. 1 General Information .............. 2 Part. 2 Indoor Unit ............................. 7 Part. 3 Outdoor Unit ........................ 18 Part. 4 Installation ........................... 24 Part. 5 Wired controller .................. 62

2 Part. 1 General Information 1. Model Names of Indoor/Outdoor Units .................................. 3 2. External Appearance ............................................................. 3 3. Nomenclature ....................................................................... 4 4. Product features .................................................................... 5

3 1. Model Names of Indoor/Outdoor Units Nominal Capacity Indoor unit Outdoor unit Model Power supply Model Power supply 4ton (3Ph) STB-48CWN1 220-240V~, 50Hz, 1Ph SOVC-48CN1-RC7C 380-415V~, 50Hz, 3Ph 5ton (3Ph) STB-60CWN1 220-240V~, 50Hz, 1Ph SOVC-60CN1-RC5C 380-415V~, 50Hz, 3Ph 2. External Appearance 2.1 Indoor units STB-48CWN1, STB-60CWN1 2.2 Outdoor unit SOVC-48CN1-RC7C, SOVC-60CN1-RC5C

4 3. Nomenclature 3.1 Indoor unit: S T B – C 48 W N1 Refrigerant Type - N1: R410A Control Type: Wired controller Nominal Cooling Capacity (18×1,000Btu/h) Cooling only Series Number: B type Medium Static Pressure Duct Type SHINKO 3.2 Outdoor unit: S OV C - 48 C N1 – R C7 C Compressor - C: Copeland EER Power Supply - R: 380-415V~, 3Ph, 50Hz Omit: 220-240V~, 1Ph, 50Hz Refrigerant Type - N1: R410A Cooling only Nominal Cooling Capacity (36×1,000Btu/h) Series Number: C type Top-discharge Outdoor Unit SHINKO

5 4. Product features Indoor Unit General These duct type indoor units which capacity range is from 4ton to 5ton, are suitable for mounting above ceiling. The units are factory assembled, internally wired and tested before leaving the manufacturer. The indoor units are insulated by polyethylene foam. Casing The units are constructed form Heavy Gauge Zinc coated steel sheets. The sheet steel zinc coated by hot dip process conforming to standard ASTM A653. Evaporator Internally finned, copper tubes mechanically bonded to a configured hydrophilic aluminum fin shall be standard. Coils are leak tested at the factory to ensure the pressure integrity. The evaporator coil is already leak tested to 3,100kPa (450 psig). Anti-corrosion treatment for coils is optional. Drain pan The condensate drain pan is fabricated of EPS. The inner of the drain pan adopts vacuum forming technology. Indoor fan The indoor units have centrifugal fan. The fan is directly driven by indoor fan motor. Filter The filter is already fix in the frame of air return. It is Nylon washable type. Outdoor unit General The outdoor units are top-discharge type. The units with weatherproof heavy gauge base are factory assembled, internally wired, fully charged refrigerant and 100% run tested to check cooling operation, fan rotation and control sequence before leaving the factory.

6 Casing Unit casing is constructed of zinc coated, heavy gauge, and galvanized steel. Exterior surfaces shall be cleaned, G90 galvanized heavy gauge plate conforming to ASTM A653, followed by baked on electrostatic polyester dry powder coat paint on all external panels, completely weatherized for outdoor installation and properly reinforced and brazed. Salt spray test for steel sheet under 1,000 hours, specially treated can be up to 2,000 hours and even more (It should be customized.). Cabinet construction allows for all maintenance on one side of the unit. Service panels are removed easily and re-installed by removing screws. Compressor All the outdoor units have single totally enclosed hermetically scroll compressor - Copeland. The compressors have internal overload relay. High pressure switch, low pressure switch and discharge temperature sensor is standard. Condenser Internally finned, copper tubes mechanically bonded to a configured hydrophilic aluminum fin shall be standard. Coils are leak tested at the factory to ensure the pressure integrity. The condenser coil is already leak tested to 3,100kPa (450 psig). Anti-corrosion treatment for coils is optional. Outdoor fan The fan is direct driven by weather proof motor (IP44 and insulation class F) to ensure reliable continuous operation. Statically and dynamically balanced drive motor design with maintenance – free bearing for outdoor installation. The fan is multi-blade vane-axial type, made of metal material for quiet operation and durability. Electrical control box In the electrical control box with the PCB board, wiring internal to the unit shall be colored and numbered for simplified identification. The PCB parts can be coated with double-side moisture proof paint, and the outer side of electric box metal cover is spray-painted (It should be customized.).

7 Part. 2 Indoor Unit 1. Features .............................................................................. 8 2. Specifications ...................................................................... 9 3. Dimensions ........................................................................ 10 4. Service Space ................................................................... 11 5. Refrigerant circuit .............................................................. 11 6. Wiring Diagrams ................................................................ 12 7. Capacity Table ................................................................... 13 8. Fan performance ............................................................... 15 9. Electric Characteristics ...................................................... 16 10. Sound Levels ..................................................................... 16 11. Accessories ....................................................................... 17

8 1. Features  Capacity range: 4ton and 5ton.  Suitable for using refrigerant R410A.  Tropical design with Copeland compressor.  Blue hydrophilic fin and inner grooved copper pipe.  3-speed indoor fan for enhanced comfort.  Air intake filter as standard.  Highly efficient scroll compressor, with thermal protectors to prevent motor overheating.  Power supply of indoor and outdoor is separated, easy installation.  Long piping length. Max. equivalent piping length is 55m, and Max. vertical distance between outdoor unit and indoor unit is 46m, when outdoor unit is up.

9 2. Specifications STB-48CWN1/ STB-60CWN1 specifications Model name STB-48CWN1 STB-60CWN1 Power supply 1-phase, 220-240V, 50Hz Cooling1 Capacity Btu/h 48000 57000 Rated input (IDU) W 560 680 EER (Btu/h)/W 38412.5 11.7 Cooling2 Capacity Btu/h 44500 51000 Rated input (IDU) W 560 680 EER (Btu/h)/W 9.4 8.6 Fan motor Model ZKSN-750-8 ZKSN-750-8 Type DC Brand Panasonic Rated speed r/min 1280 1280 Coil Number of rows 4 4 Tube pitch × row pitch mm 25.4*22 25.4*22 Fin spacing mm 1.6 1.6 Fin type Hydrophilic aluminum fin Tube OD and type mm Ф9 / Inner grooved copper pipe Dimensions (L×H ×W) mm 996×355.6×88 996*355.6*88 Number of circuits 7 Airflow rate CFM 1550@50Pa 1650@50Pa External static pressure Pa 50(0-125) 50(0-125) Sound pressure level3 dB(A) 54/52/51 55/53/51 Net dimensions (W×H×D) mm 1311×422×692 Packed dimensions (W×H×D) mm 1436×450×768 Net/Gross weight kg 68/76 68/76 Refrigerant type R410A Throttle Type Throttle valve Model 077 080 Design pressure (H/L) MPa 4.4/2.6 Pipe connections Liquid/Gas pipe mm Ф9.5/Ф22 Ф9.5/Ф28 Drain pipe mm Ф25 Ф25 Piping Length m 55 15 Level Difference m 46 10 Controller SKJR-86E/BFK-E Notes: 1. The nominal T1 cooling capacities are based on the following conditions: Indoor temperature: 27°CDB, 19°CWB; Outdoor temperature: 35°CDB; 2. The nominal T3 cooling capacities are based on the following conditions: Indoor temperature: 29°CDB, 19°CWB; Outdoor temperature: 46°CDB; 3. The noise is measured in the semi noise suppression lab. The sound level is measured 1m below the unit.

10 3. Dimensions STB-48CWN1/ STB-60CWN1 (Unit: mm) ELECTRICAL CONTROL BOX PLASTIC COVER 422 139 874 249 140 AIR OUTLET 6-Φ5 HOLES FOR AIR OUTLET DUCT CONNECTION AIR OUTLET DUCT FLANGE AIR INTAKE DUCT FLANGE 4-12*25 OBLONG SUSPENTION BOLT HOLES AIR INTAKE 4-Φ5 HOLES FOR AIR OUTLET DUCT CONNECTION CONNECTING POINT OF DRAIN PIPE 69 604 638 639 50 392 27 400 1311 1213 140 400 1151 800 37 36 340 68 1077 REFRIGERANT-PIPE FLANED CONNECTION Φ19(7/8) REFRIGERANT-PIPE FLANED CONNECTION Φ9.52(3/8) SAFETY DRAIN CONNECTING PIPE CONNECTING POINT OF DRAIN PIPE 89 180 422 158 161 123 44 11 44 692 27 115 119 26 115 160

11 4. Service Space Top view 5. Refrigerant circuit

12 6. Wiring Diagrams STB-48CWN1/ STB-60CWN1

13 7. Capacity Table SOVC-48CN1-RC7C + STB-48CWN1 Indoor air flow Outdoor Temp. (DB) IWB (℃) 15 17.2 19 19.4 21.7 IDB (℃) 21.1 23.9 26.7 29.4 21.1 23.9 26.7 29.4 27 29 21.1 23.9 26.7 29.4 21.1 23.9 26.7 29.4 1550CFM 29.4 TC 41.4 43.6 45.9 48.4 44.2 46.5 48.0 49.3 50.4 51.5 47.0 49.5 51.0 52.6 / 51.0 52.6 54.2 SC 31.0 40.5 45.9 48.4 25.6 34.4 43.2 49.3 36.9 50.6 18.8 29.7 37.0 51.0 / 20.4 31.5 40.7 kW 3.37 3.41 3.44 3.46 3.39 3.42 3.46 3.58 3.45 3.55 3.41 3.44 3.48 3.49 / 3.46 3.49 3.51 35 TC 39.4 41.5 43.8 46.1 42.1 44.3 45.7 47.0 48.0 49.1 44.8 47.2 48.6 50.1 / 48.6 50.1 51.6 SC 30.4 39.4 43.8 46.1 25.3 33.7 42.0 46.9 36.0 48.2 17.9 28.3 36.2 48.6 / 19.9 30.5 39.2 kW 3.75 3.79 3.82 3.84 3.77 3.80 3.84 3.98 3.84 3.96 3.79 3.82 3.86 3.88 / 3.84 3.88 3.90 40.6 TC 37.2 39.1 41.3 43.5 39.7 41.8 43.1 44.2 45.3 46.1 42.3 44.5 45.9 47.3 / 45.8 47.2 48.7 SC 29.4 38.4 41.3 43.5 24.2 32.6 41.0 44.2 34.8 45.4 16.9 26.7 35.0 45.9 / 19.0 29.0 37.3 kW 4.16 4.21 4.25 4.27 4.18 4.23 4.27 4.42 4.26 4.38 4.21 4.25 4.29 4.31 / 4.27 4.31 4.33 46.1 TC 35.1 36.9 38.9 41.9 37.5 39.5 40.7 42.6 42.7 44.5 39.9 42.0 43.3 45.5 / 43.2 44.6 46.9 SC 28.4 36.6 38.9 41.9 23.2 31.6 39.9 42.6 33.7 43.8 15.9 25.2 33.9 44.1 / 18.2 27.6 36.1 kW 4.63 4.67 4.72 4.60 4.65 4.70 4.74 4.76 4.74 4.73 4.67 4.72 4.77 4.65 / 4.74 4.79 4.67 47.8 TC 34.4 36.2 38.2 40.2 36.7 38.7 39.9 41.1 41.9 42.9 39.1 41.1 42.4 43.7 / 42.4 43.7 45.0 SC 28.2 36.2 38.2 40.2 22.8 31.7 39.9 41.0 33.7 42.2 15.6 24.7 34.1 42.4 / 18.2 27.5 35.1 kW 4.77 4.82 4.87 4.89 4.79 4.84 4.89 5.06 4.89 5.02 4.82 4.87 4.92 4.94 / 4.89 4.94 4.96 51.7 TC 33.3 35.0 36.9 38.9 35.5 37.4 38.5 39.8 40.6 41.5 37.8 39.8 41.0 42.3 / 41.0 42.2 43.5 SC 27.9 35.0 36.9 38.9 22.7 31.4 38.5 39.7 30.5 40.8 15.1 23.9 34.0 41.0 / 18.0 27.0 34.4 kW 5.11 5.16 5.21 5.24 5.13 5.19 5.24 5.41 5.24 5.37 5.16 5.21 5.26 5.29 / 5.24 5.29 5.32 Notes: 1. IDB = Indoor Dry Bulb Temp. (℃); IWB = Indoor Wet Bulb Temp. (℃); TC = Total Cap. (1,000Btu/h); SC = Sensible Cap. (1,000Btu/h); kW = Power Input (kW). Airflow Correction Factors Airflow(CFM) TC1 Sensible2 KW 1450 ×0.98 ×0.96 ×0.99 1700 ×1.02 ×1.06 ×1.01

14 SOVC-60CN1-RC5C + STB-60CWN1 Indoor air flow Outdoor Temp. (DB) IWB (℃) 15 17.2 19 19.4 21.7 IDB (℃) 21.1 23.9 26.7 29.4 21.1 23.9 26.7 29.4 27 29 21.1 23.9 26.7 29.4 21.1 23.9 26.7 29.4 1650CFM 29.4 TC 49.3 51.9 54.7 57.6 52.6 55.4 57.1 58.6 59.8 59.0 56.0 58.9 60.8 62.6 / 60.7 62.6 64.5 SC 36.9 48.2 54.7 57.6 30.5 41.0 51.4 58.5 43.4 57.8 22.4 35.4 43.5 60.8 / 24.3 37.5 48.4 kW 4.28 4.32 4.37 4.39 4.30 4.35 4.39 4.25 4.38 4.46 4.32 4.37 4.41 4.43 / 4.39 4.43 4.46 35 TC 46.9 49.4 52.1 54.9 50.1 52.8 54.4 55.8 57.0 56.3 53.3 56.1 57.9 59.6 / 57.8 59.6 61.4 SC 36.1 46.9 52.1 54.9 30.1 40.1 50.0 55.7 42.4 55.0 21.3 33.7 42.6 57.9 / 23.7 36.4 46.7 kW 4.76 4.80 4.85 4.88 4.78 4.83 4.88 4.72 4.87 4.96 4.80 4.85 4.90 4.93 / 4.88 4.93 4.95 40.6 TC 44.3 46.6 49.1 51.8 47.3 49.8 51.3 52.4 53.7 52.9 50.3 52.9 54.6 56.3 / 54.5 56.2 58.0 SC 35.0 45.7 49.1 51.8 28.8 38.8 48.7 52.5 40.9 51.9 20.1 31.8 41.3 54.6 / 22.6 34.6 44.4 kW 5.29 5.34 5.39 5.42 5.31 5.37 5.42 5.24 5.41 5.49 5.34 5.39 5.45 5.47 / 5.42 5.47 5.50 46.1 TC 41.8 44.0 46.3 50.3 44.6 47.0 48.4 50.6 50.7 51.0 47.5 50.0 51.5 54.7 / 51.4 53.0 56.3 SC 33.8 43.5 46.3 50.3 27.7 37.6 47.4 50.6 39.7 50.0 19.0 30.0 40.0 53.0 / 21.6 32.9 43.4 kW 5.65 5.71 5.77 5.62 5.68 5.74 5.80 5.65 6.01 5.93 5.71 5.77 5.83 5.68 / 5.80 5.85 5.71 47.8 TC 40.5 42.7 45.0 47.4 43.3 45.6 47.0 48.8 49.8 49.1 46.1 48.5 50.0 51.5 / 50.0 51.5 53.1 SC 33.2 42.7 45.0 47.4 26.8 37.4 47.0 48.7 39.7 48.1 18.4 29.1 39.8 50.0 / 21.5 32.4 41.4 kW 5.83 5.89 5.95 5.98 5.86 5.92 5.98 6.00 6.20 6.30 5.89 5.95 6.01 6.04 / 5.98 6.04 6.07 51.7 TC 39.1 41.2 43.5 45.8 41.8 44.0 45.4 47.2 48.2 47.6 44.5 46.8 48.3 49.8 / 48.2 49.7 51.3 SC 32.9 41.2 43.5 45.8 26.8 37.0 45.4 47.1 35.9 46.6 17.8 28.1 38.1 48.3 / 21.2 31.8 40.5 kW 6.40 6.46 6.53 6.56 6.43 6.49 6.56 6.42 6.64 6.73 6.46 6.53 6.59 6.63 / 6.56 6.63 6.66 Notes: 1. IDB = Indoor Dry Bulb Temp. (℃); IWB = Indoor Wet Bulb Temp. (℃); TC = Total Cap. (1,000Btu/h); SC = Sensible Cap. (1,000Btu/h); kW = Power Input (kW). Airflow Correction Factors Airflow(CFM) TC1 Sensible2 KW 1500 ×0.98 ×0.96 ×0.99 1950 ×1.02 ×1.06 ×1.01

15 8. Fan performance STB-48WN1 External Static Pressure CFM Wet Coil with filter External Static Pressure-Inches W.C. In.H2O 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 Switch Setting 1 2 3 4 5 6 7 8 9 A B Air volume High CFM 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700 Power/W 313 335 356 377 398 427 457 480 504 533 563 Medium CFM 1550 1550 1550 1550 1550 1550 1550 1550 1550 1550 1550 Power/W 249 269 290 311 331 350 368 389 410 434 457 Low CFM 1450 1450 1450 1450 1450 1450 1450 1450 1450 1450 1450 Power/W 200 223 247 261 276 305 333 346 359 386 414 Notes: The values are based the unit with filter operating under cooling mode. STB-60WN1 External Static Pressure CFM Wet Coil with filter External Static Pressure-Inches W.C. In.H2O 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 Switch Setting 1 2 3 4 5 6 7 8 9 A B Air volume High CFM 1950 1950 1950 1950 1950 1950 1950 1950 1950 1950 1950 Power/W 414 445 475 502 529 548 567 603 639 660 682 Medium CFM 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Power/W 301 321 341 358 375 395 415 444 473 497 522 Low CFM 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 1500 Power/W 224 245 266 280 295 318 341 364 387 406 425 Notes: The values are based the unit with filter operating under cooling mode.

16 9. Electric Characteristics Model Indoor Unit Power Supply IFM Hz Voltage Min. Max. MCA MFA kW FLA STB-48WN1 50 220-240V 198V 254V 3.9 15 0.56 3.1 STB-60WN1 50 220-240V 198V 254V 4.7 15 0.68 3.7 Note: MCA: Min. Current Amps. (A) MFA: Max. Fuse Amps. (A) IFM: Indoor Fan Motor kW: Fan Motor Rated Input (kW) FLA: Full Load Amps. (A) 10. Sound Levels Concealed Duct Type Suction Discharge Microphone 1.4m Duct Model Sound pressure level High Medium Low STB-48CWN1 58dB(A) 57dB(A) 56dB(A) STB-60CWN1 59dB(A) 58dB(A) 57dB(A)

17 11. Accessories Name Qty. - Purpose Installation manual 1 - - Pipe insulation material 2 Heat insulation Water outlet joint 1 For drainage Clap 1 Chucking the joint which connect the drain hose and the outlet of the indoor unit Wire Control 1 Real the guiding frame Display 1 Use for pipe connection of installation Copper nut 1 Connecting gas pipes Copper nut 1 Connecting liquid pipes

18 Part. 3 Outdoor Unit 1. Specifications .................................................................... 19 2. Dimension ......................................................................... 20 3. Service Space ................................................................... 21 4. Wiring Diagrams ................................................................ 22 5. Electric Characteristics ...................................................... 23 6. Sound Levels ..................................................................... 23

19 1. Specifications ton 4 5 Model name SOVC-48CN1-RC7C SOVC-60CN1-RC5C Power supply V/Ph/Hz 380-415/3/50 Cooling1 Capacity Btu/h 48000 57000 Power input (Total) W 3840 4871 EER (Btu/h)/h 12.5 11.7 Cooling2 Capacity Btu/h 44500 51000 Power input (Total) W 4730 5930 EER (Btu/h)/h 9.4 8.6 Compressor Type Scroll Quantity 1 Oil type POE Refrigerant oil ml 1242 Fan Type Axial flow fan Motor type AC Quantity 1 Motor output W 320 320 Airflow rate m3/h 6270 5810 Drive type Direct Refrigerant Type R410A Factory charge g 4220 5070 Throttle type \ Piston Pipe connections Liquid pipe mm 9.5 9.5 Gas pipe mm 22 28 Sound pressure level3 dB(A) 62 63 Net dimensions (W×H×D) mm 740×843×740 Packed dimensions (W×H×D) mm 768×877×768 Net weight kg 89.6 96.4 Gross weight kg 94.6 101.4 Ambient temp. range Cooling ℃ 17~54 Notes: 1. The nominal T1 cooling capacities are based on the following conditions: Indoor temperature: 27°CDB, 19°CWB; Outdoor temperature: 35°C DB 2. The nominal T3 cooling capacities are based on the following conditions: Indoor temperature: 29°CDB, 19°CWB; Outdoor temperature: 46°C DB; 3. The noise is measured in the semi-anechoic room, at a position 1m in front of the unit and H meter above the floor. (H=(1+Height of the unit)/2).

20 2. Dimension Model Dimensions Refrigerant connection valve size H (mm) W (mm) L (mm) Liquid (mm) Gas (mm) SOVC-48CN1-RC7C 843 740 740 Φ9.52 Φ22 SOVC-60CN1-RC5C 843 740 740 Φ9.52 Φ28 Notes: Grill appearance may vary in the figure.

22 4. Wiring Diagrams SOVC-48CN1-RC7C/ SOVC-60CN1-RC5C:

23 5. Electric Characteristics Model Outdoor Unit Power Supply Compressor OFM Hz Voltage Min. Max. MCA MOP MFA LRA RLA KW FLA SOVC-48CN1-RC7C 50 380-415V 198V 254V 13.3 20 20 72 8.6 0.320 1.5 SOVC-60CN1-RC5C 50 380-415V 198V 254V 14.1 25 25 76 10.1 0.320 1.5 Remak: MCA: Min. Current Amps. (A) MOP: Rating of Overcurrent Protective Devices(A) MFA: Max. Fuse Amps. (A) LRA: Locked Rotor Amps. (A) RLA: Rated Locked Amps. (A) OFM: Outdoor Fan Motor. FLA: Full Load Amps. (A) KW: Rated Motor Output (kW) 6. Sound Levels Model Sound pressure level SOVC-48CN1-RC7C 62dB(A) SOVC-60CN1-RC5C 63dB(A)

24 Part. 4 Installation 1. Notes ................................................................................. 25 2. Installation of the Indoor Units ........................................... 28 3. Installation of Outdoor Units .............................................. 32 4. Connection of Refrigerant Pipe .......................................... 37 5. Heat Insulation of Refrigerant Pipe .................................... 40 6. Electric Connection ............................................................ 41 7. Trial Run ............................................................................ 45 8. Trouble shooting ................................................................ 45 9. Spot check ......................................................................... 53 10. Maintenance ...................................................................... 54 11. Main PCB ports description ............................................... 59 12. Display panel ..................................................................... 63

25 1. Notes WARNING:  Failure to observe a warning may result in death.  Be sure only trained and qualified service personnel to install, repair or service the equipment. Improper installation, repair and maintenance may result in electric shocks, short-circuit, leaks, fire or other damage to the equipment.  Install according to this manual strictly. If installation is defective, it will cause water leakage, electrical shock fire.  When installing the unit in a small room, take measure to against refrigerant from exceeding allowable safety limits in the event of refrigerant leakage. Contact the place of purchase for more information. Excessive refrigerant in a closed ambient can lead to oxygen deficiency.  Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the unit fall, water leakage, electrical shock fire.  Install at a strong and firm location which is able to withstand the set’s weight. If the strength if not enough or installation is not properly done, the unit will drop to cause injury.  The unit must be installed 2.5 meter above floor.  The unit shall not be installed in the laundry.  Before obtaining access to terminals, all supply circuits must be disconnected.  The unit must be positioned so that the plug is accessible.  The enclosure of the unit shall be market by word, or by symbols, with the direction of the refrigerant flow.  For electrical work, follow the local national wiring standard, regulation and this manual. An independent circuit and single outlet must be used. If electrical circuit capacity is not enough or defect in electrical work, it will cause electrical shock fire.  Use the specified wire, connect it tightly and clamp it so that no external force will be acted on the terminal. If connection or fixing is not perfect, will cause heat-up or fire at the connection.  Wiring routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will cause heat-up at connection point of the terminal, fire or electrical shock.  If the power wire is damaged, it must be replaced by the manufacture or its service agent or similarly

26 qualified person in order to avoid a hazard.  An all-pole disconnection switch having a contact separation of at least 3mm in poles should be connected in fixed wiring.  When carrying out piping connection, take care not to let air substances go into refrigeration cycle. Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosion and injury.  Do not modify the length of the power supply wire or use of extension wire, and do not share the single outlet with other electrical units. Otherwise, it will cause fire or electrical shock.  Carry out the specified installation work after taking into account strong winds, typhoons or earthquakes. Improper installation work may result in the equipment falling and causing accidents.  If the refrigerant leaks during installation, ventilated the area immediately. Toxic gas may be produced if the refrigerant comes into the place contacting with fire.  The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the copper tube.  After completing the installation work, check that the refrigerant does not leak. Toxic gas may be produced if the refrigerant leaks into the room and comes into contact with a source of fire, such as a fan heater, stove or cooker.  The unit shall be installed in accordance with national wiring regulations.  An all-pole disconnection device which has at least 3mm separation distance in all poles and a residual current device (RCD) with the rating of above 10mA shall be incorporated in the fixed wiring according to the nation rule.  The power wire type designation is H05RN-R / H07RN-F or above. CAUTION:  Ground the air conditioner. Do not connect the ground wire to gas or water pipes, lightning rod or a telephone ground wire. Incomplete grounding may result in electric shocks.  Be sure to install an earth leakage breaker. Failure to install an earth leakage breaker may result in electric shocks.  Connect the outdoor unit wires, and then connect the indoor unit wires. You are not allowed to connect the air conditioner with the power source until wiring and piping of the air conditioner is done.

27  While following the instructions in this manual, install drain piping in order to ensure proper drainage and insulate piping in order to prevent condensation. Improper drain piping may result in water leakage and property damage.  Install the indoor and outdoor units, power supply wiring and connecting wires at least 1 meter away from televisions or radios in order to prevent image interference or noise. Depending on the radio waves, a distance of 1 meter may not be sufficient enough to eliminate the noise.  The unit is not intended for use by young children or infirm persons without supervision.  Do not install the air conditioner in the following locations: ✓ There is petrolatum existing. ✓ There is salty air surrounding (Near the coast). ✓ There is caustic gas (the sulfide, for example) existing in the air (Near a hot spring). ✓ The volt vibrates violently (in the factories). ✓ In buses or cabinets. ✓ In kitchen where it is full of oil gas. ✓ There is strong electromagnetic wave existing. ✓ There are inflammable materials or gas. ✓ There is acid or alkaline liquid evaporating. ✓ Other special conditions.  If the air conditioner is installed on a metal part of the building, it must be electrically insulated according to the relevant standards to electrical appliances.  When all the installation work is finished, please turn on the power only after a thorough check.  Installation order: ✓ Select the location; ✓ Install the indoor unit; ✓ Install the outdoor unit; ✓ Installation the connecting pipe ✓ Connect the drain pipe; ✓ Wiring; ✓ Test operation.  At delivery, the package of indoor and outdoor units should be checked and any damage should be

28 reported immediately to the service agent.  When handling the unit, take into account the following: ✓ Fragile, handle the unit with care. ✓ Move the unit as originally package as possible. ✓ When lifting the unit, always use protectors to prevent belt damage and pay attention to the position of the unit’s center of gravity. 2. Installation of the Indoor Units 2.1 Installating indoor units  As the following picture, when install the indoor unit, select the enough solid and level site with enough space for installation and maintenance.  The inspection orifice should be enough larger to repair and maintenance the unit.  Ensure that the minimum drain gradient is over 1/100.  Please refer to the following figure for the distance measurement between the screw bolts.  Please install with screw bolts. Use Ф10 or bigger screws.  The handling to the ceiling varies from constructions consult the construction personnels for the specific procedures.  Cut off the roof beam. Strengthen the place cut off, and consolidate the roof beam.  Carry out the pipe and line operation in the ceiling after finishing the installation of the main body. While choosing where to start the operation, determine the direction of the pipes to be drawn out. Especially in case there is a ceiling, position the refrigerant pipes, drain pipes, indoor and outdoor lines to the connection places before hanging up the unit.

29  The distance between the four screw bolts: STB-48CWN1, STB-60CWN1: (Unit: mm)  When the pandant bolt is fixed in wooden structure, please put the square timber traversely over the roof beam, then install the hanging screw bolts.  When in the new concrete bricks, inlaying or embedding the screw bolts.  For original concrete bricks, use embedding screw bolt, crock and stick harness.

30  For steel roof beam structure, install and use directly the supporting angle steel.  Overhang the indoor unit onto the hanging screw bolts with block. Position the indoor unit in a float level by using the level indicator, otherwise it may cause water leakage. 2.2 Designing and connecting the duct  Check the filter of the indoor unit, and then install the canvas air passage underneath the dust proof net.  Install a filter at an easy-to-maintain place such as intake pipe. If without the filter, the duct will gather on the air heat exchanger and lead to fault and water leak of the air conditioner.  In order to suppress noise effectively, install noise suppression and sound insulation devices, especially in the noise-sensitive spaces such as meeting rooms.  For connection of the flange plane, use non-flammable canvas adapter to prevent transmission of vibration.  Air inlet and air outlet duct should be apart far enough to prevent air outlet entering air inlet.  Recommended duct connection

31 STB-48CWN1, STB-60CWN1 (Unit: mm) View of air outlet side View of air inlet side 2.3 Install the drainage pipe  In order to prevent faults caused by condensate of the refrigerant pipe and drain pipe, perform condensate prevention and heat insulation properly.  Hard PVC binder must be used for pipe connection, and make sure there is no leakage.  With the connection part to the indoor unit, please be noted not to impose pressure on the side of indoor unit pipes.  For Model 48 and 60, the outlet has PTI screw bread, so please use sealing materials and pipe sheath (fitting) when connecting PVC pipes.

32  Please use the accessory drain hose to connect the outlet of indoor unit with the PVC water pipe, and then use the accessory clasp for chucking.  To prevent water from flowing backwards into the air conditioner while the air conditioner stops, please lean the drainage pipe down toward outdoor (outlet-side) at a degree of over 1/100. And please avoid any bulge or water deposit.  Do not drag the drainage pipe violently when connecting to prevent the body from being pulled. Meanwhile, one support point should be set every 0.8 - 1.0m to prevent the drainage pipe from yielding. Or you can tie the drainage pipe with the connecting pipe to fix it.  In case of prolonged drainage pipe, you had better tighten its indoor part with a protection tube to prevent it from loosing.  The end of the drainage pipe should be over 50mm higher than the ground or the bottom of the drainage chute, and do not immerse it in water. If you discharge the water directly into sewage, be sure to make a U-form.  Charge water into water collection tray, after the drain water pipe is installed, check whether the water can be drained smoothly and whether the joints are leakage.  After making sure that the water drains smoothly and no water is leaked, use a diabatic wool bushes to preserve heat of the drain pipe. Otherwise, condensate will occur. 3. Installation of Outdoor Units  Decide the correct way of conveying the equipment. Try to transport this unit with the original package.  If the air conditioner needs to be installed on a metal part of the building, electric insulation must be performed, and the installation must meet the relevant technical standards of electric devices.  Before install the outdoor unit, it should be checked first: ✓ The appliance shall not be installed in laundry. ✓ Install the unit where the air inlet and outlet are free from obstacles and strong wind.

33 ✓ Install the unit in a dry and well-ventilated place. ✓ Install the unit where the bearing surface is level and can bear weight of the unit, and is suitable for installing the unit horizontally without increasing noise or vibration. ✓ Install the unit where the operation noise and expelling of air do not affect neighbors. ✓ Install the unit where no flammable gas is leaked. ✓ Install the unit where it is convenient for pipe connection and electric connection.  Before obtaining access to terminals, all supply circuits must be disconnected.  The appliance must be positioned so that the plug is accessible.  The enclosure of the appliance shall be marked by word, or by symbols, with the direction of the fluid flow.  The appliance shall be installed in accordance with national wiring regulations.  If the supply cord is damaged, it must be replaced by the manufacture or its service agent or a similarly qualified person in order to avoid a hazard.  An all-pole disconnection switch having a contact separation of at least 3mm in all poles should be connected in fixed wiring.  The temperature of refrigerant circuit will be high, please keep the interconnection cable avway from the cooper tube.  This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.  Requirements for installing / Servicing R410A Equipment: ✓ Gauge sets, hoses, refrigerant containers, and recovery system must be designed to handle the POE or PVE type oils. ✓ Manifold sets should be 800PSIG high side and 250PSIG low side with 550PSIG low side restart. ✓ All hoses must have a 700PSIG service pressure rating. ✓ Leak detectors should be designed to detect R410A. ✓ Recovery equipment (including refrigerant recovery containers) must be specifically designed to handle R410A.

34 ✓ It will be more convenient to open the service valve after removing the underside clapboard.  Before starting the installation, select and check the suitability of the location for outdoor unit. Observe all limitations and clearance requirements. The outdoor unit must have sufficient clearance for air entrance to the condenser coil, for air discharge and for service access.  Notes: L1=1,000mm, L2=915mm.

35  For multiple unit installations, units must be spaced a minimum of 915mm apart. (Coil face to face.  If the unit is to be installed on a hot sun exposed roof or a black-topped ground area, the unit should be raised sufficiently above the roof or ground to avoid taking the accumulated layer of hot air into the outdoor unit. At the same time, an adequated structural support for the unit is necessary.  In case any obstacles exist above the outdoor unit, such obstacles must be 1,524mm above the outdoor unit.  Ground installation: ✓ The unit may be installed at ground level on a solid base that will not shift or settle, causing strain on the refrigerant lines and possible leaks. ✓ Install the unit in a level position. ✓ Normal operating sound levels may be objectionable if the unit is placed directly under windows of certain rooms, such as bedrooms, study rooms. ✓ Top of the unit discharge area must be unrestricted for at least 1,530mm above the unit. ✓ The outdoor unit should not be installed in an area where mud or ice could cause personal injury or system damage. ✓ Elevate the unit sufficiently to prevent any blockage of the air entrances by snow in areas where there will be snow accumulation. Check the local weather bureau for the expected snow accumulation in your area. Isolate the unit from rain gutters to avoid any possible wash out of the foundation.  Roof installation: ✓ When installing units on a roof, the structure must be capable of supporting the total weight of the unit, including a padded frame unit, rails, etc., which should be used to minimize the transmission of sound or vibration into the conditioned space.  Unit placement: ✓ Provide a base in the pre-determined location. ✓ Remove the shipping carton and inspect for possible damage. ✓ Compressor tie-down nuts should remain tightened. ✓ Position the unit on the base provided. ✓ This system uses R410A refrigerant which operates at higher pressure than R22. No other refrigerant may be used in this system. Gauge sets, hoses, refrigerant containers, and recovery

36 system must be designed to handle R410A. ✓ The outdoor unit must be connected to the indoor coil using field supplied refrigerant grade copper tubing that is internally clean and dry. Units should be installed only with the tubing sizes for approved system combinations. The refrigerant charge shown in the nameplate is for standard size interconnecting liquid line lengths up to 4.57m. ✓ Using a larger than specified line size could result in oil return problems. Using a too small line will result in loss of capacity and other problems caused by insufficient refrigerant flow. Slope horizontal suction lines at least 4mm per 1m toward the outdoor unit to facilitate proper oil return.  Factory-preferred tie-down method: ✓ Prior to installing clear pad of debris. Then cement pad must meet local codes and must be the proper thickness to accommodate fasteners. ✓ Center and level unit onto pad. ✓ Using field supplied L-shaped bracket to locate holes on concrete and drill pilot holes which is at least 6.35mm deeper than fastener being used. ✓ Self-drilling screws to base pan should not exceed 9.52mm long to avoid damaging coil. ✓ Using conventional practices to install brackets, tighten concrete fasteners and self-tapping screws. (Brackets: 50mm width, 1.5mm thickness, height as required. Available from distributor or in market place.) Notes: These instructions are intended to provide a method to tie-down system to cement slab as a securing procedure for high wind areas. It is recommended to check Local Codes for tie-down methods and protocols.

37 4. Connection of Refrigerant Pipe  Refrigerant pipe sizing between indoor and outdoor unit. Model No. Liquid pipe (mm) Liquid Line Size - Outdoor unit higher than indoor unit Total Equivalent Length (m) 7.62 15.24 22.86 24.99 30.48 38.10 45.72 54.86 Maximum Vertical Separation (m) 48 Φ9.52 7.62 15.24 22.86 24.99 30.48 38.10 45.72 45.72 60 Φ9.52 7.62 15.24 22.86 24.99 30.48 38.10 45.72 45.72 Model No. Liquid pipe (mm) Liquid Line Size - Outdoor unit lower than indoor unit Total Equivalent Length (m) 7.62 15.24 22.86 24.99 30.48 38.10 45.72 54.86 Maximum Vertical Separation (m) 48 Φ9.52 7.62 15.24 15.85 15.54 14.63 13.11 11.58 9.75 60 Φ9.52 7.62 15.24 14.33 13.72 12.50 10.36 8.53 6.70 Notes: ✓ The maximum length of interconnecting line is 54.86m. ✓ Always use the shortest length possible with a minimum number of bends. ✓ Excessively long refrigerant lines cause loss of air conditioner capacity. ✓ Keep the vertical lift to a minimum. Use the following guidelines when installing the unit: ✓ 1. Do not exceed the vertical lift as indicated on the table. ✓ 2. It is recommended to use the smallest liquid line size permitted to minimize system charge which will maximize compressor reliability. ✓ 3. The above table may be used for sizing horizontal runs. ✓ 4. Do not exceed 45.72m maximum vertical separation. ✓ It is suggested to install oil return bend per ten meters.  Indoor unit pipe connection: ✓ Keep the coil connections sealed until refrigerant connections are made. ✓ Indoor coil is shipped with No charge. Evacuate the system before charging with refrigerant. ✓ Install refrigerant tubing so that it does not block service access to the front of the unit. ✓ Nitrogen should flow through the refrigerant lines while brazing. ✓ Use a brazing shield to protect the cabinet’s paint and a wet rag to protect the rubber grommet from being damaged by torch flames.

38 ✓ After the refrigerant connections are made, seal the gap around the connections with pressure sensitive gasket. ✓ Be sure to cover all the exposed parts of the flare pipe joints and refrigerant pipe on the liquid-side and the gas-side with insulating materials. Ensure that there is no gap between them. Incomplete insulation may cause water condensation.  Outdoor unit pipe connection: ✓ Notes: Never attempt to repair any brazed connections while the system is under pressure. Personal injury could result. ✓ Remove the cap and Schrader core from both the liquid and suction service valve service ports at the outdoor unit. Connect low pressure nitrogen to the liquid line service port. ✓ Braze the liquid line to the liquid valve at the outdoor unit. Be sure to wrap the valve body with a wet rag. Allow the nitrogen to continue flowing. Refer to the refrigerant pipe size list for proper liquid line sizing. ✓ Carefully remove the rubber plugs from the evaporator liquid and suction connections at the indoor coil. ✓ Braze the liquid line to the evaporator liquid connection. Nitrogen should be flowing through the evaporator coil. ✓ Slide the plastic cap away from the suction connection at the indoor coil. Braze the suction line to the evaporator suction connection. ✓ Protect the suction valve with a wet rag and braze the suction line connection to the outdoor unit. The nitrogen flow should be exiting the system from the suction service port connection. After this connection has cooled, remove the nitrogen source from the liquid fitting service port. ✓ Replace the Schrader core in the liquid and suction valves. ✓ Leak test all refrigerant piping connections including the service port flare caps to be sure they are leak tight.

39 ✓ Do not over tighten; it should be between 40 and 60 inch – lbs. maximum. ✓ Evacuate the suction line, evaporator, and the liquid line, to 350 microns or less. ✓ Replace cap on service ports. Do not remove the flare caps from the service ports except when necessary for servicing the system. ✓ Release the refrigerant charge into the system. Open both the liquid and suction valves by removing the plunger cap and with an hex wrench back out counter-clockwise until valve stem just touches the chamfered retaining wall. ✓ Replace plunger cap finger tight, then tighten an additional 1/12 turn (1/2 hex flat). ✓ Cap must be replaced to prevent leaks. ✓ Install the lines with as few bends as possible. Care must be taken not to damage the coupling or kink the tubing. Use clean hard drawn copper tubing where no appreciable amount bending around obstruction is necessary, if soft copper must be used, care must be taken to avoid sharp bends which may cause a restriction. ✓ The refrigerant pipe cannot obstruct service access to the condenser, air handling system or filter. ✓ Care must also be taken to isolate the refrigerant pipes to minimize noise transmission from the unit the structure. ✓ The suction line must be insulated. Tape and suspend the refrigerant lines as shown in following figure. Do not allow tube metal-to-metal contact.

40 ✓ Use PVC piping as a conduit for all underground installations. Buried lines should be kept as short as possible to minimize the buildup of liquid refrigerant in the suction line during long periods of shutdown. ✓ Pack a sealing material such as perma gum around refrigerant lines where they penetrate a wall to reduce vibration and to retain some flexibility.  Vacuum ✓ It will be necessary to evacuate the system to 350 microns or less. ✓ If a leak is suspected, leak test with dry nitrogen to locate the leak. ✓ Repair the leak and test again. ✓ To verify that the system has no leaks, simply close the valve to the vacuum pump suction to isolate the pump and hold the system under vacuum. Watch the micron gauge for a few minutes. If the micron gauge indicates a steady and continuous rise, it is an indication of a leak. If the gauge shows a rise, then levels off after a few minutes and remains fairly constant, its an indication that the system is leak free but still contains moisture and may require further evacuation if the reading is above 350 microns.  After vacuum, according to the diameter and length of the connective pipe of liquid side between the indoor unit and outdoor unit, calculate the refrigerant replenishment quantity. The refrigerant for replenishment is R410A. Diameter of liquid-side pipe Quantity of refrigerant replenished for 1m pipe length Φ9.52mm 0.0555kg Notes: Please check and record the replenished quantity of the air conditioner. 5. Heat Insulation of Refrigerant Pipe In order to prevent faults caused by condensate of the refrigerant pipe and drain pipe, perform

41 condensate prevention and heat insulation properly. If it is forecast that high humidity and temperature environment (Condensate temperature is over 23°C) may exist in the ceiling, e.g., inside the ceiling with slab, ceiling which is in the same environment as the outdoor air. It is necessary to apply 10mm or thicker adiabatic wool (16~20kg/m2) to the refrigerant pipe and the drain pipe in addition to applying the general heat insulation materials. Enough heat insulation materials should also be applied to the refrigerant joint and the pipe joint. Notes: The heat insulation of drain pipe refers to the installation of indoor unit.  Please use heat-resistant materials as heat insulation material of the air-side pipe. (e.g., EPT)  Cover heat insulation materials separately at the liquid side and the air side. Moreover, perform heat insulation thoroughly for the air-side pipes of the indoor unit, and prevent water from dripping outside the unit.  After applying the auxiliary heat insulation materials, use vinyl resin tape to seal refrigerant pipe and drainage pipe to prevent water leak. 6. Electric Connection 6.1 Caution  Power supply of indoor unit and outdoor unit must be within normal voltage range.  Power wiring, control wiring, disconnect switches and over-current protection must be supplied by the installer. Wire size should be sized per requirement.  The power cord type designation is H07RN-F.  Before connecting wire, please switch off the power supply. Otherwise, it may cause electric shock.  External wiring of the indoor unit must be grounded that means power wire of outdoor unit shall be connected with external grounding wire reliably.  Electrical wiring must be done by professionals, and wiring according to the wiring label.  Run power wiring from the disconnect switch to the unit.  Route wires from disconnect through power wiring opening provided and into the unit control box.  Install the proper size time-delay fuses or circuit breaker, and make the power supply connections.

42  Before electrical wiring, an all-pole disconnection device must be installed.  Install the electrical leakage device according to national regulation.  Power wires and communication wires shall be arranged orderly and reasonably without mutual interfere. Connection pipes and valves should without mutual contact. In general, two wires connection is not allowed, unless the welding joint is well welded and wrapped with insulating tape.  Must select an appropriate connection wire according to the specification requirements. In general, it is not allowed to parallel connection two wires, unless welding joint is well welded and wrapped with insulating tape.  Every pole of the all-pole disconnection device should have at least 3mm separation distance and a leakage protector with the rating current above 10mA shall be installed together when wiring.  All electrical wiring is finished, power on as long as it is confirmed that all wires are connected correctly and fixed tightly. Notes: For outdoor units, remove the screws at the side of the corner panel, and slide corner panel down and remove from unit.

43 6.2 Specifications of power supply  Indoor units: Model STB-48WN1 STB-60WN1 Power supply 220-240V~, 1Ph, 50Hz 220-240V~, 1Ph, 50Hz Circuit breaker / Fuse 16A/10A 16A/10A Power supply cable 3×2.5mm2 3×2.5mm2 Connective wire of indoor and outdoor unit 2×0.75mm2 2×0.75mm2  Outdoor units: Model SOVC-48CN1-RC7C SOVC-60CN1-RC5C Power supply 380-415V~, 3Ph, 50Hz 380-415V~, 3Ph, 50Hz Circuit breaker / Fuse 20A/20A 25A/25A Power supply cable 5×2.5mm2 5×2.5mm2 Connective wire of indoor and outdoor unit 2×0.75mm2 2×0.75mm2

44 6.3 Schematic diagram Notes: Other thermostat with 220V signal and factory thermostat with 5V cannot be connected with indoor unit together. STB-48WN1 + SOVC-48CN1-RC7C/ STB-60WN1 + SOVC-60CN1-RC5C

45 7. Trial Run The trial run must be carried out after the entire installation has been completed. Please confirm the following points before the trial run: ✓ The indoor unit and outdoor unit are installed properly. ✓ Piping and wiring are correctly completed. ✓ The drainage is unimpeded. ✓ The ground wiring is connected correctly. ✓ The lengths of the piping and the amount of recharged refrigerant have been recorded. ✓ The power voltage fits the rated voltage of the air conditioner. ✓ There is no obstacle at the air outlet and inlet of the indoor and outdoor units. ✓ Check whether all valves are opened. ✓ Pre-heated the air conditioner by power on. 8. Trouble shooting  Outdoor unit’s malfunction and protection codes Content LED1 LED2 LED3 Power supply phase sequence error Flashing Extinguished Extinguished Lack of Phase A, B of power supply Lack of Phase C of power supply Extinguished Extinguished Extinguished Low pressure protection Flashing Flashing Extinguished Over-current protection of compressor Extinguished Extinguished Flashing High pressure protection Extinguished Flashing Extinguished Discharge temperature protection

47 ✓ Lack of Phase A, B and C of power supply

48 ✓ Low pressure protection Notes: Low pressure protection is triggered 3 times in 20 minutes, the units should be repower again to reset the unit.

49 ✓ Over-current protection of compressor

50 ✓ High pressure protection & Discharge temperature protection

51  For the indoor unit Model 48 and 60 with signal 5V wired controller, the malfunction and protection codes (Shown in display board): Content Display content Pipe temperature sensor (T1) error E2 Room temperature sensor (T2) error E3 Eeprom error E7 DC fan motor error E6 6 times fan error (E6) in 1 hour, lock up Eb ✓ Pipe temperature sensor (T2) error ✓ Room temperature sensor (T1) error

53 ✓ DC fan motor error (E6/Eb) E6 Motor wire connect not securely Yes Correct the motor wire No The indoor fan wheel is blocked by foreign matter Yes clean the matter No The difference between ESP setting and actual resistance of the duct is too large Yes Set the correct ESP according to the installation manual No There is strong convection weather. Yes No need to have service. No 1.The voltage between black wire and white wire on CN3 is not in the range 14-18Vdc 2.The voltage between black wire and yellow wire on CN3 is not in the range 2.1-4.6Vdc Yes Replace the control board. No The motor failed Yes Replace motor No No need to have service if the fault doesn’t recurrence 9. Spot check 0 Normal display 1 Ts (Actual setting temperature) 2 Actual room temperature T1（The lowest temperature that can display is -9℃） 3 Actual Temperature in the middle of indoor evaporator T2（The lowest temperature that can display is -9℃） 4 Version number of main program software of the indoor unit 5 Display “――” Note: Press the manual button, the display panel shows according to the spot check table.

54 10. Maintenance 10.1 Operation required before leaving the unit idle for a long period.  Let the air conditioner run in the fan mode for about half a day, and let its interior be fully dry.  Switch off the power by the button in remote or wired controller, and then cut off the power supply.  When the main power switch is turned on, a certain extent of electric power is consumed even if the air conditioner does not run. Turning off the main power switch can save energy.  Remove the batteries out of the remote controller.  After the air conditioner has been in service for several seasons, foreign substance accumulates inside the unit to an extent dependent on the working conditions. Therefore, shut down the air conditioner through the ON/OFF button of the controller, and then cut off the power supply.  Startup after a long period out of service. ✓ Check the following issues: ✓ Check whether the air inlet or outlet of the indoor unit and outdoor unit is blocked. ✓ Check whether the ground wire is connected properly. ✓ Check whether the condensate water is discharged normally. ✓ Check whether the insulation work of refrigerant circuit and ventilating duct is on sound status. ✓ Check whether the installing seat is corroded or rusted. 10.2 Maintenance and upkeep of outdoor unit  The edge of some sheet metal assemblies and the fin of the condenser are very sharp. Incorrect operation may cause harm. Be cautious when cleaning them up.  Check the air inlet and outlet of the outdoor unit periodically to see whether they are blocked by stain or lampblack. 10.3 Motor and evaporator maintenance (Only available for Model: 18, 24 and 36 indoor unit)  Shut down the unit and cut off power supply before maintain.  Remove off the ventilated panel.  Remove off a half of motor housing.  Take off the motor.  Clean the evaporator and fan, or change the indoor motor.

55 10.4 Tray maintenance (Only available for Model: 48 and 60 indoor unit)  Shut down the unit and cut off power supply before maintain.  Remove the all screws form the fixed safety drain tray.  Do not heavy pull the foam tray, when dismounting; otherwise, the foam tray would be broken.  Take off the tray along the direction of the arrow shown as the following figure.  Clean the tray and evaporator. 10.5 Motor maintenance (Only available for Model: 48 and 60 indoor unit)  Shut down the unit and cut off power supply before maintain.  Before dismount the fan motor assembly, the motor and electric control box should be removed first, as well as connective wires between motor and capacity of motor assembly.  Fan motor subassembly is very heavy, please be careful during maintaining, otherwise physical injury would be caused.

56  Remove all screws from safety drain tray, and take off the safety drain tray.  Remove all bolts from fan assembly, according to which orders to take off the fan motor assembly.  Horizontal pushing the fan motor assembly, until it cannot move any further, and then lift up slightly and take down to remove it.  Fan motor assembly structure as following figure.

57  After motor maintenance, re-install the fan motor assembly as per reverse above orders, and connect the motor with electric control box, as well as motor with power cable of motor capacity. 10.6 Filter cleaning  The filter can expel dust and other particles in the air. If it is blocked, the effect of the air conditioner will be degraded. Therefore, clean it often if the air conditioner already has been used for a long

58 period. If the indoor unit is installed in a place with heavy dust, clean the filter more often.  If the stain is heavy and difficult to clean, replace the filter.

59 11. Main PCB ports description 11.1 Indoor Unit Main PCB Ports ○ 1 ○ 2 ○ 3 ○ 4 ○ 5 ○ 6 ○ 7 ○ 8 ○ 9 ○ 10 ⑭ ○ 11 ⑫ ⑬

60 Label Port code Content Port voltage 1 CN24 Communication port to fan drive board 310 ~340V DC 2 CN20 Network module port (Reserved), short circuit 0V or 5V DC 3 CN4 Indoor ambient temperature sensor and Indoor heat exchanger mid-point temperature sensor port 0-5V DC (varying) 4 CN15 Display port, connect to display board 0V or 5V DC 5 CN25 Debug port 0V or 5V DC 6 CN17 Communication port, connect to wire controller 0V or 18V DC 7 CN1 Power input of main board 220-240V AC between L and N 8 CN16 Power input of main board 220-240V AC between L and N 9 EARTH Ground port / 10 CN13 Control port to outdoor unit 220-240V AC 11 CN57 Rectified DC voltage input port 310 ~340V DC between CN57 and CN58 12 CN58 Rectified DC voltage input port 310 ~340V DC between CN57 and CN58 13 CN29 Power supply to Bridge rectifier 220-240V AC 14 ENC1 Toggle Switch to set static pressure 0 or 5V DC The description of ENC1’s different toggle switch codes (Static pressure unit: Inches W.C.) Code 0* 1 2 3 4 5 6 7 8 9 A B CDEF Set Static Pressure 0.20* 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.20 Notes: * stands for Factory settings

61 11.2 Indoor Fan Drive PCB Ports Label Port code Content Port voltage 1 CN13 Communication port to indoor unit main board 310 ~340V DC 2 CN3 Power supply to fan motor 310 ~340V AC 3 CN1 Test port 0 or 3.3V DC 4 CN15 Debug port 0 or 3.3V DC ① ② ③ ④

62 11.3 Outdoor Unit Main PCB Ports ○ 1 ○ 2 ○ 3 ○ 4 ○ 10 ○ 5 ○ 6 ○ 7 ○ 8 ○ 9

63 Label Port code Content Port voltage 1 CN200 Power input 380V AC 2 CN201 Single input 220V AC 3 CN206 Reserve (BLACK) Reserve 4 CN206 High pressure switch and discharge temperature switch(es) connections (WHITE) 0-5V DC (varying) 5 CN9 Low pressure switch connection 0-5V DC (varying) 6 CN208 Transformer out AC12.7V, AC110.5V 7 CN39 Transformer in 220V AC 8 CN38 Compressor output 220V AC 9 CN203 Outdoor fan output 220V AC 10 SW1 Power select（1-phase/3-phase） 0 or 5VDC 12. Display panel 12.1 Appearance of Display Panel 12.2 Output under Normal Operating Conditions Unit state Display output Lights Digital display Standby OPERATION light flashes slowly Auto-restart delay Shutting-down All lights off Operating Normal operation OPERATION light Cooling modes: set temperature Fan only mode: indoor ambient temperature Cold draft prevention or outdoor unit defrosting operation（only for HP system） OPERATION light and DEF./FAN lights Set temperature A timer has been set TIMER light on n/a Manual button LED display

64 Part. 5 Wired controller 1. Wired Controller: SWDC-86E (Standard) ............................ 65 2. Wired Controller: SKJR-29B1/BK-E (Customized) .............. 66

65 1. Wired Controller: SWDC-86E (Standard) 1.1 Wired controller specifications Model SWDC-86E/KD Power supply voltage 5V DC Ambient humidity range RH40%~RH90% Performance Features 1. Bi-directional communication 2. Operating mode: Cool, heat (Reserved), dry, fan and auto. 3. Touch key. 4. Indoor setting temperature range: 17°C ~30°C. 5. oC / oF display. 6. Background light 7. Follow me

66 2. Wired Controller: SKJR-29B1/BK-E (Customized) SKJR-29B1/BK-E 2.1 Wired controller specifications Model SKJR-29B1/BK-E Power Supply Voltage 5V DC Ambient Humidity Range RH40%~RH90% Performance Features 1. Operating mode: Cool, heat, dry, fan and auto. 2. Set the mode through buttons. 3. Indoor setting temperature range: 17°C ~30°C. 4. LCD (Liquid Crystal Display). 5. Easy to installation, connect with indoor unit via the four ports of A, B, C, D 6. Remote receiving function.

SHINKO AIRCON Add.: Office No: 203, Burj Nahar Views building, 166-Omar Bin Khattab Street, Naif- Deira, Dubai-UAE Postal code: 283018 www.shinkoaircon.com, [email protected] Note: Product specifications change from time to time as product improvements and developments are released and may vary from those in this document.