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Acson international ACK 15 Series Manual

Ceiling cassette split systems
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Models:
ACK 20 A/AR
ACK 25 A/AR
ACK 30 A/AR
ACK 40 A/AR
ACK 50 A/AR
ACK 15 B/BR
ACK 20 B/BR
ACK 25 B/BR
ACK 30 B/BR
Ceiling Cassette
Split Systems
Manual No: TMA-ACK-A-1230B

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Questions and answers

Phseow
February 22, 2025

Acson 3 HP R32 WiFi inverter ceiling cassette mounted split air cond. It trips whenever I ON the switch. The wire is installed from DB box to switch then to cassette then out to compressor. Electrician claimed that installation is wrong. It should be from DB box to switch then out to compressor after which back to cassette. Which is the correct system for wiring installation? Please enlighten me asap.

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1 comments:
Mr. Anderson
May 14, 2025

The correct wiring installation system for the Acson ACK 15 Series includes:

- Voltage supply fluctuation must not exceed ±10% of rated voltage.
- Electricity supply lines must be independent of the welding transformer to avoid high supply fluctuations.
- The location must be convenient for wiring, piping, and drainage.
- Clearance of at least 0.5 meters must be provided from walls and obstacles.
- The installation place must be strong enough to support four times the indoor unit weight to reduce noise and vibration.
- The ceiling surface should be level with a height of 350 mm or more.

These conditions ensure proper electrical and mechanical installation.

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Summary of Contents for Acson international ACK 15 Series

  • Page 1 Models: ACK 20 A/AR ACK 25 A/AR ACK 30 A/AR ACK 40 A/AR ACK 50 A/AR ACK 15 B/BR ACK 20 B/BR ACK 25 B/BR ACK 30 B/BR Ceiling Cassette Split Systems Manual No: TMA-ACK-A-1230B...

  • Page 2: Table Of Contents

    CONTENTS 1. SPECIAL FEATURES ..................2 2. SPECIFICATIONS ..................3 3. NOISE LEVEL ....................9 4. OPERATING RANGE ..................10 5. PERFORMANCE TABLE................11 6. OUTLINES AND DIMENSIONS ..............13 7. WIRING DIAGRAMS ..................15 8. SPECIAL PRECAUTIONS FOR R407C ............42 9.

  • Page 3: Special Features

    1. SPECIAL FEATURES ULTRA SLIM NEW STYLISH DESIGN PROFILE This unit is contemporary in design and match even the most up to date interior decor. The slim, (only 22 mm for B-series and only 28 mm for A-series) and round profile front panel of this unit adds a touch of elegance to every decor.

  • Page 4: Specifications

    2. SPECIFICATIONS CEILING CASSETTE (COOLING ONLY) MODEL INDOOR UNIT ACK 20A ACK 25A ACK 30A ACK 40A ACK 50A OUTDOOR UNIT ALC 20B ALC 25B ALC 30B ALC 30C ALC 40C ALC 50C 5292 6300 7056 7560 10080 12600 NOMINAL kcal/h COOLING 6155...
  • Page 5 CEILING CASSETTE (HEAT PUMP) ACK 20AR ACK 25AR ACK 30AR ACK 40AR ACK 50AR MODEL INDOOR UNIT OUTDOOR UNIT ALC 20BR ALC 25BR ALC 30CR ALC 40CR ALC 50CR 5040 6300 7560 10080 12096 NOMINAL kcal/h COOLING 5862 7327 8792 11723 14068 CAPACITY...
  • Page 6 CEILING CASSETTE (COOLING ONLY – R407C) MODEL INDOOR UNIT ACK 20A ACK 25A ACK 30A ACK 40A ACK 50A OUTDOOR UNIT A4LC 20B A4LC 25B A4LC 30C A4LC 40C A4LC 50C NOMINAL kcal/h 4612 5292 7560 9576 12600 5363 6155 8792 11134 14650...
  • Page 7 CEILING CASSETTE (HEAT PUMP – R407C) ACK 20AR ACK 25AR ACK 30AR ACK 40AR ACK 50AR MODEL INDOOR UNIT A4LC 20BR A4LC 25BR A4LC 30CR A4LC 40CR A4LC 50CR OUTDOOR UNIT NOMINAL kcal/h 4536 5170 7310 9830 12100 COOLING 5274 6008 8499 11430...
  • Page 8 CEILING CASSETTE (COOLING ONLY) MODEL INDOOR UNIT ACK 15B ACK 20B ACK 25B ACK 30B OUTDOOR UNIT ALC 15B ALC 20B ALC 25B ALC 30B ALC 30C NOMINAL kcal/h 3150 4788 6048 7182 7560 COOLING 3664 5569 7034 8353 8792 CAPACITY Btu/h 12500...
  • Page 9 CEILING CASSETTE (HEAT PUMP) ACK 15BR ACK 20BR ACK 25BR ACK 30BR MODEL INDOOR UNIT ALC 15BR ALC 20BR ALC 25BR ALC 30CR OUTDOOR UNIT NOMINAL kcal/h 4536 5796 7056 COOLING 5275 6741 8206 18000 23000 28000 CAPACITY Btu/h NOMINAL kcal/h 4914 5796...

  • Page 10: Noise Level

    3. NOISE LEVEL 1/1 Octave A-weighed sound pressure level (dBA), ref 20µPa Model 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz Ave. H M L H M L H M L H M L H M L H M L H M L H M L ACK20A/AR 11 42...

  • Page 11: Operating Range

    4. OPERATING RANGE Ensure the operating temperature is in allowable range. Cooling only Cooling Caution : HIGH AMBIENT UNIT The use of your air conditioner outside the range of working temperature and humidity can result in serious failure. LOW AMBIENT Indoor temp.

  • Page 12: Performance Table

    5. PERFORMANCE TABLE MODEL : ACK20A / ALC20B Indoor DB Indoor WB Capacity Outdoor DB, ° C ° C ° C 19.4 26.7 13.9 5.353 5.146 4.961 4.776 4.592 4.370 5.353 5.146 4.961 4.776 4.592 4.370 5.644 5.431 5.242 5.052 4.862 4.635 5.333...
  • Page 13 MODEL : ACK40A / ALC40C Indoor DB Indoor WB Capacity Outdoor DB, ° C ° C ° C 19.4 26.7 13.9 11.260 10.642 10.090 9.538 8.986 8.324 9.934 9.595 9.292 8.989 8.687 8.324 11.857 11.181 10.578 9.975 9.372 8.648 9.661 9.339 9.051 8.764...

  • Page 14: Outlines And Dimensions

    6. OUTLINES AND DIMENSIONS INDOOR UNIT ACK 20/ 25/ 30/ 40/ 50A/AR ACK 15/ 20/ 25/ 30 B/BR MODEL ACK-A (All model) ACK-B (All model) OUTDOOR UNIT ALC 20/ 25 B/BR, ALC 30B A4LC 20/ 25 B/BR...
  • Page 15 OUTDOOR UNIT ALC 30/ 40/ 50C/CR A4LC 30/ 40/ 50 C/CR...

  • Page 16: Wiring Diagrams

    7. WIRING DIAGRAMS INDOOR UNIT (COOLING ONLY) MODEL : ACK 20/ 25A (C3A BOARD) OUTDOOR UNIT MODEL : ALC/ A4LC 20/ 25B...
  • Page 17 INDOOR UNIT (COOLING ONLY) MODEL : ACK 30A (C3A BOARD) OUTDOOR UNIT MODEL : ALC / A4LC 30C...
  • Page 18 INDOOR UNIT (COOLING ONLY) MODEL : ACK 40/ 50A (C3A BOARD) OUTDOOR UNIT MODEL : ALC / A4LC 40/ 50C...
  • Page 19 INDOOR UNIT (HEAT PUMP) MODEL : ACK 20/ 25AR (C3A BOARD) OUTDOOR UNIT MODEL : ALC / A4LC 20/ 25BR...
  • Page 20 INDOOR UNIT (HEAT PUMP) MODEL : ACK 30AR (C3A BOARD) OUTDOOR UNIT MODEL : ALC / A4LC 30CR...
  • Page 21 INDOOR UNIT (HEAT PUMP) MODEL : ACK 40/ 50AR (C3A BOARD) OUTDOOR UNIT MODEL : ALC/A4LC 40/50CR...
  • Page 22 INDOOR UNIT (COOLING ONLY) MODEL : ACK 20/25A (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC/A4LC 20/25B...
  • Page 23 INDOOR UNIT (COOLING ONLY) MODEL : ACK 30A (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC/A4LC 30C...
  • Page 24 INDOOR UNIT (COOLING ONLY) MODEL : ACK 30A (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC 30B...
  • Page 25 INDOOR UNIT (COOLING ONLY) MODEL : ACK 40/50A (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC/A4LC 40/50C...
  • Page 26 INDOOR UNIT (HEAT PUMP) MODEL : ACK 20/25AR (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC/A4LC 20/25BR...
  • Page 27 INDOOR UNIT (HEAT PUMP) MODEL : ACK 30AR (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC/A4LC 30CR...
  • Page 28 INDOOR UNIT (HEAT PUMP) MODEL : ACK 40/50AR (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC/A4LC 40/50CR...
  • Page 29 INDOOR UNIT (COOLING ONLY ) MODEL : ACK 15B (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC15B...
  • Page 30 INDOOR UNIT (COOLING ONLY ) MODEL : ACK 20/25B (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC20/25B...
  • Page 31 INDOOR UNIT (COOLING ONLY ) MODEL : ACK 30B (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC30C...
  • Page 32 INDOOR UNIT (COOLING ONLY ) MODEL : ACK 30B (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC 30B...
  • Page 33 INDOOR UNIT (HEAT PUMP) MODEL : ACK 15BR (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC 15BR...
  • Page 34 INDOOR UNIT (HEAT PUMP) MODEL : ACK 20/ 25BR (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC 20/ 25BR...
  • Page 35 INDOOR UNIT (HEAT PUMP) MODEL : ACK 30BR (UNIVERSAL BOARD) OUTDOOR UNIT MODEL : ALC 30CR...
  • Page 36 ATTACHMENT 60HZ OUTDOOR UNIT MODEL : ALC 30C (COOLING ONLY) 60HZ / 1 PHASE / 208 ~230V MODEL : ALC 40/50C (COOLING ONLY) 60HZ / 3 PHASE / 200 ~230V MODEL : ALC 40/50CR (COOLING ONLY) 60HZ / 3 PHASE / 200 ~230V...
  • Page 37 3 PHASE FOR 2 & 3 HP OUTDOOR UNIT MODEL : ALC 20/25B (COOLING ONLY) 3 PHASE / 50 HZ / 380 ~ 415V MODEL : ALC 30C (COOLING ONLY) 3 PHASE / 50 HZ / 380 ~ 415V...
  • Page 38 MODEL : ALC 20/25BR (HEAT PUMP) 3 PHASE / 50HZ / 380 ~ 415V MODEL : ALC 30CR (HEAT PUMP) 3 PHASE / 50HZ / 380 ~ 415V...
  • Page 39 HIGH AMBIENT UNIT OUTDOOR UNIT MODEL : ALC 20/25B (COOLING ONLY) 50HZ / 1 PHASE / 220 – 240V, 60HZ / 1 PHASE / 208 – 230V OUTDOOR UNIT MODEL : ALC 30C (COOLING ONLY) 50HZ / 1 PHASE / 220 – 240V, 60HZ / 1 PHASE / 208 –...
  • Page 40 OUTDOOR UNIT MODEL : ALC 20/25BR (HEAT PUMP) 50HZ / 1 PHASE / 220 – 240V OUTDOOR UNIT MODEL : ALC 30CR 50HZ / 1 PHASE / 220 – 240V, 60 HZ / 1 PHASE / 220V OUTDOOR UNIT MODEL : ALC 40/50CR 50HZ / 3 PHASE / 380 –...
  • Page 41 LOW AMBIENT UNIT (OPTIONAL) OUTDOOR UNIT MODEL : ALC 10B / 15B (50HZ) OUTDOOR UNIT MODEL : ALC 20B / 25B (50HZ)
  • Page 42 LOW AMBIENT UNIT OUTDOOR UNIT MODEL : ALC 10/15BR 50HZ / 1 PHASE / 220 – 240V OUTDOOR UNIT MODEL : ALC 20BR 50HZ / 1 PHASE / 220 – 240V OUTDOOR UNIT MODEL : ALC 25BR 50HZ / 1 PHASE / 220 – 240V...

  • Page 43: Special Precautions For R407C

    8. SPECIAL PRECAUTIONS FOR R407C Special precautions when dealing with refrigerant R407C unit 1) WHAT IS NEW REFRIGERANT R407C? R407C is a zeotropic refrigerant mixture which has zero ozone depletion potential and thus conformed to the Montreal Protocol regulation. It requires Polyol ester oil (POE) oil for its compressor's lubricant. Its refrigerant capacity and performance are about the same as the refrigerant R22.
  • Page 44 c) Ensure that the compressor is not expose to open air for more than the recommended time specified by its manufacturer (typically less than 10 minutes). Removed the seal-plugs only when the compressor is about to be brazed. d) The system should be thoroughly vacuumed to 1.0 Pa (-700mmHg) or lower. This vacuuming level is more stringent than R22 system so as to ensure no incompressible gas and moisture in the system.

  • Page 45: Installation Of Indoor Unit

    9. INSTALLATION OF INDOOR UNIT Caution : Sharp edges and coil surfaces are potential injury hazard. Avoid from contact with them. PRELIMINARY SITE SURVEY • Electrical supply and installation is to conform to local authority's (e.g. National Electrical Board) codes and regulations.
  • Page 46 UNIT HANGING Indoor Unit Ceiling Board 35.0 mm ACK-A ACK-B • Confirm the pitch of the hanging rod is 790.0mm X 620.5mm (ACK-A) / 600.0mm x 582.0 mm (ACK-B). • Hold the unit and hang it on the hanging rod with the nut and washer. •...
  • Page 47 PANEL INSTALLATION • The front panel can only be fitted in one direction, follow the piping direction. (Follow piping arrow sticker on front panel). • Be sure to remove the installation template before installing the front panel. • Open the air intake grille by pulling back the catchers and remove it together with filter from panel. •...

  • Page 48: Installation Of Outdoor Unit

    AIR INTAKE GRILLE INSTALLATION • Before installed the air intake grille, make sure the air filter is clip properly to the air FRAME intake grille. (OPTIONAL ITEM) • Install the air intake grille together with the air filter to the front panel. IONIZER FILTER (OPTIONAL ITEM) •...

  • Page 49: Refrigerant Piping Work

    11. REFRIGERANT PIPING WORK Refrigerant piping is important in particular. Refrigeration cycle of the split air conditioner is realized by the perfect piping work. PIPING LENGTH AND ELEVATION If the piping is too long, both the capacity and reliability of the unit will drop. As the number of bends increases, resistance to flow of refrigerant increases, thus lowering the cooling capacity and as a result overloading the compressor which may cause the compressor to become defective.

  • Page 50: Wiring

    Heat pump INDOOR ACK20AR ACK25AR ACK30AR ACK40AR ACK50AR MODEL OUTDOOR ALC20BRK ALC25BRK ALC30CR ALC40CR ALC50CR L = 7 m 0.050 0.100 0.100 0.100 0.100 L = 10 m 0.075 0.500 0.250 0.250 0.250 L = 15 m 0.150 0.750 0.500 0.500 0.500 L = 20 m...

  • Page 51: Indicator Lights

    13. INDICATOR LIGHTS REMOTE CONTROL When there is infrared remote control operating signal, the signal receiver on indoor unit will made a <beep> for signal acceptance conformation. WIRELESS REMOTE CONTROL (C3A BOARD) Cooling : LED Indicator Light Display Heatpump : LED Indicator Light Display POWER SLEEP HEAT...
  • Page 52 WIRELESS REMOTE CONTROL (UNIVERSAL BOARD) Cooling : LED Indicator Light Display Heatpump : LED Indicator Light Display POWER SLEEP HEAT TIMER POWER TIMER Operation / Faulty Indication POWER TIMER SLEEP HEAT Timer on Sleep mode on Heat mode ¤ m / l Frost prevention mode Continuously ¤...

  • Page 53: Accessory Parts

    14. ACCESSORY PARTS SHORT DUCT SPECIFICATION • The indoor unit is provided with air discharge and air intake "knock-out". hole for duct connection. However the connection of the short duct for air discharge is possible on only one side. • The use of short duct for air discharge will improve airflow distribution if there is an obstruction (such as alighting fixture) or in a long, narrow room or an L-shaped room.

  • Page 54: Overall Checking

    SEALING MATERIAL • It is possible to seal one of the four air discharge outlet (sealing two or more air discharge outlet could cause a malfunction). • Remove the front panel and inserting the seal material into the air discharge outlet at the indoor unit to seal the air outlet.

  • Page 55: Remote Control Operation Guide

    17. REMOTE CONTROL OPERATION GUIDE G6 REMOTE CONTROLLER TEMPERATURE SETTING FAN SPEED AND SIGNAL TRANSMISSION VENTILATION MODE • INDICATION Set the desire room • SELECTION Blink to confirm the temperature. Press the button until • last setting has been Press button to increase the desired fan speed is send to the unit.
  • Page 56 SENSOR ON/OFF ON/OFF AUTO COOL HIGH MODE TEMP TEMP HEAT SWING SLEEP TIMER SWING SLEEP TIMER MODE AC-5300 (OPTIONAL) 1. “ON/OFF” switch 6. “Sleep” mode • Press to start the air conditioner unit. • Press button to activate the sleep function. •...
  • Page 57 G8 REMOTE CONTROLLER 1. Transmission source 8. OFF timer setting • • The source where the signal will be transmitted. Press the SET button will activate the off timer function. 2. Signal Transmission indication • Set the desired off time by pressing the SET button •...

  • Page 58: Service And Maintenance

    18. SERVICE AND MAINTENANCE Warning: Disconnect from main supply before servicing the air conditioner. The unit is designed to give long life operation with minimum maintenance required. However, it should be regularly checked and the following items should be given due attention. Components Maintenance Procedure Recommended Schedule...

  • Page 59: Pre Start Up Maintenance

    19. PRE START UP MAINTENANCE After Extended Shutdown • Inspect thoroughly and clean indoor and outdoor units. • Clean or replace air filter. • Clean condense drain line. • Clean clogged indoor and outdoor coils. • Check fan imbalance before operation. •...

  • Page 60: Parts List

    21. PARTS LIST UNIT ( NEW HANGER ) PARTS DESCRIPTION PARTS DESCRIPTION BASE PAN HEXAGON BOLT FAN MOTOR DRAIN HOSE FAN MOTOR BUSH LEVEL SWITCH PLAIN WASHER COIL SUPPORT FAN MOTOR WASHER PARTITION BOTTOM COUPLING SIDE PANEL FRONT TURBO FAN VALVE PLATE TOP COUPLING DRAIN CONNECTOR...
  • Page 61 UNIT ( WITH OLD HANGER BRACKET ) PARTS DESCRIPTION PARTS DESCRIPTION BASE PAN DRAIN HOSE FAN MOTOR LEVEL SWITCH FAN MOTOR BUSH COIL SUPPORT PLAIN WASHER PARTITION FAN MOTOR WASHER SIDE PANEL FRONT BOTTOM COUPLING VALVE PLATE TURBO FAN DRAIN CONNECTOR TOP COUPLING SIDE PANEL BACK FLAT WASHER...
  • Page 62 PANEL ( WIRELESS REMOTE CONTROL ) PART DESCRIPTION PART DESCRIPTION FRONT PANEL SWING MOTOR BRACKET RECEIVER BRACKET PANEL COVER DISCHARGE HOUSING A FIX PLATE METAL LOUVER A AIR INTAKE GRILLE DISCHARGE HOUSING B GRILLE LOCK METAL LOUVER B GRILLE LOCK BRACKET DISCHARGE HOUSING D IONIZER FILTER FRAME LOUVER BRACKET...
  • Page 63 PANEL (WIRED REMOTE CONTROL) PART DESCRIPTION PART DESCRIPTION FRONT PANEL SWING MOTOR AIR FILTER SWING MOTOR BRACKET DISCHARGE HOUSING A PANEL COVER METAL LOUVER A FIX PLATE DISCHARGE HOUSING C AIR INTAKE GRILLE AIR SWING CAP GRILLE LOCK DISCHARGE HOUSING D GRILLE LOCK BRACKET LOUVER BRACKET IONIZER FILTER FRAME...
  • Page 64 MODEL : ALC 20B / 25B PARTS DESCRIPTION PARTS DESCRIPTION ASSY., BACK PANEL GROMMET, RUBBER ASSY., TOP PANEL NUT, WITH WASHER ASSY., CONDENSER COIL ASSY., BASE PAN BRACKET, MOTOR MOUNTING ASSY., CAPILLARY TUBE MOTOR, FAN ASSY., PARTITION FLINGER ASSY., TERMINAL BOX PANEL W/O CONT. WASHER, RING ASSY., SIDE PANEL FAN BLADE...
  • Page 65 MODEL : ALC 30/ 40/ 50 C/ CR PARTS DESCRIPTION PARTS DESCRIPTION BASE PAN ASY. FAN BLADE ACCESS / SERVICE PANEL FRONT PANEL ASSY. CONDENSER COIL ASSY. SIDE PANEL LEFT COMPRESSOR TERMINAL BOX ASSY. PARTITION PANEL BACK PANEL VALVE PLATE ASSY. TOP PANEL FAN MOTOR &...

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