Product Category Ducted Systems
Product Range Bulkhead range
Capacity 3.50kW Cooling 4.00kW Heating
Model Number ARTH12KSLAP

Technical Specifications

Indoor unit ARTH12KSLAP
Outdoor unit AOTH12KBTA
Operation Type Reverse Cycle
Power Source V/Ph/Hz 230 / 1 / 50
Capacity Class kW 3.5
Cooling Capacity kW (Rated (Min - Max)) 3.50 (0.9 - 4.1)
Heating Capacity kW (Rated (Min - Max)) 4.00 (0.9 - 5.1)
Input Power Cooling kW (Rated (Max)) 0.98 (1.41)
Input Power Heating kW (Rated (Max)) 1.1 (1.97)
EER Cooling kW/kW 3.57
COP Heating kW/kW 3.64
Star Rating Cooling (0-10) (Hot / Average / Cold) 3 / 2.5 / 2.5
Star Rating Heating (0-10) (Hot / Average / Cold) 2.5 / 2 / 1.5
Total Cooling Seasonal Performance Factor Residential kW (Hot / Average / Cold) 4.645 / 4.269 / 4.374
Heating Seasonal Performance Factor Residential kW (Hot / Average / Cold) 4.371 / 3.934 / 3.492
Total Cooling Seasonal Performance Factor Commercial kW (Hot / Average / Cold) 4.97 / 5.006 / 5.313
Heating Seasonal Performance Factor Commercial kW (Hot / Average / Cold) 4.373 / 4.109 / 3.73
Running Current amps (Cooling / Heating) 4.6 / 5.1
Moisture Removal l/hr 1.5
Indoor Sound Pressure Cooling dBA (High / Quiet) 31 / 23
Indoor Sound Pressure Heating dBA (High / Quiet) 31 / 23
Outdoor Sound Pressure dBA (Cooling / Heating) 47 / 48
Outdoor Sound Power dBA 61
Static Pressure Range PA (Min to Max) 0 to 30
Air Circulation (Indoor - High Fan) Cooling l/sec 181
Air Circulation (Indoor - High Fan) Heating l/sec 181
Indoor Unit Dimensions mm (Height x Width x Depth) 198 x 700 x 450
Indoor Unit Weight kg 15.50
Outdoor Unit Dimensions mm (Height x Width x Depth) 542 x 799 x 290
Outdoor Unit Weight kg 32.00
Piping Connects mm Ø (Liquid / Gas) 6.35 / 9.52
Pipe Length m (Max (Precharged)) 20 (15)
Max Height Difference m 15
Operation Range Cooling °CDB (Min to Max) -10 to 46
Operation Range Heating °CDB (Min to Max) -15 to 24
Refrigerant Type R32
Refrigerant Amount g 850


What’s included in your purchase


Indoor Unit


Outdoor Unit



Wired Remote Controller - Backlit Touch Panel Wall Controller

Optional Parts


Wireless Remote Controller - Wireless Remote Controller & Infra-Red Receiver Kit


WiFi Control


WiFi Control - Required when connecting UTY-NXT-BOX to any non Lifestyle range indoor unit. Refer to compatibility list for more information.


Wired Remote Controller - Simple Controller Without Mode Button


Wired Remote Controller - Backlit Touch Panel Wall Controller


Wired Remote Controller - Simple Controller With Mode Button


Wired Remote Controller - KAGAMI Wired Remote Controller



Auto Grille Louvre Kit


External Input & Output PCB


Remote Temperature Sensor


External Connection Wire


Key features

Features a compact design to allow for flexible installation in the best available space.

  • All DC
    All DC

    With All DC, electricity loss is decreased and power consumption reduced.

  • Auto Restart
    Auto Restart

    Should there be a temporary loss of power, the unit will automatically restart itself in the same operating mode, once the power is restored.

  • Auto Changeover
    Auto Changeover

    The unit automatically switches between operating modes based on the temperature setting and room temperature.

  • Blue Fin Heat Exchanger
    Blue Fin Heat Exchanger

    Corrosion-resistance of the heat exchanger in coastal areas has been improved by blue fin treatment of the outdoor unit heat exchanger.

  • Connectable Distribution Duct
    Connectable Distributing Duct

    Systems are capable of attaching a field-supplied branch ducts distributing the airflow.

  • Economy Mode
    Economy Mode

    Limits the maximum operation current, and performs operation with the power consumption suppressed.

  • ON-OFF Timer
    On-Off Timer

    ON-OFF timer can be set to operate once every 24 hours.

  • Weekly Setback Timer
    Weekly + Setback Timer

    Weekly + setback timer can set temperature for two time spans and for each day of the week.

  • Automatic Fan Speed Adjustment

    The micro-processor automatically adjusts air flow to follow changes in room temperature

  • Error Code Display

    Error sign is shown on the wired remote controller display or the indicator lamps on the IR receiver unit.

Operating Manual

Click on the Download button below to get the pdf

Download PDF

This product is part of the Residential and Commercial Bulkhead range

Back to Residential Bulkhead range Back to Commercial Bulkhead range
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