Bulkhead Ducted
Type Ducted System
Available in Reverse Cycle - 2.5kW, 3.5kW, 5.0kW
Refrigerant R32

Key features

  • 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.

  • Economy Mode
    Economy Mode

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

  • Fresh Air Intake
    Fresh Air Intake

    Fresh air can be taken in by a fan which can be connected using an external control unit.

  • ON-OFF Timer
    On-Off Timer

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

  • Removable Intake Grill
    Removable Intake Grill

    The indoor unit’s intake grille can be removed for easy cleaning and maintenance.

  • Weekly Setback Timer
    Weekly + Setback Timer

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

  • Weekly Timer
    Weekly Timer

    Different ON-OFF times can be set for up to 7 days.

  • Automatic Air Flow Adjustment
    Automatic Air Flow Adjustment

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

  • Connectable Distribution Duct
    Connectable Distributing Duct

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

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Take control. Controller options.

This range is compatible with the following controller options.

  • controller-feature tick
    Temperature Setback Timer

    Use this timer function to change the set temperature in the operating times set for each day of the week.

  • controller-feature tick
    Super Quiet Mode

    The indoor unit's fan can operate at a low speed to minimise noise.

  • controller-feature tick
    Weekly Timer

    Different ON-OFF times can be set for up to 7 days.

Find the perfect model. Explore the Bulkhead range.

Technical Specifications

Attribute ARTH09KSLAP 2.50kW(C) 3.20kW(H) View model ARTH09KLLAP 2.50kW(C) 3.20kW(H) View model ARTH12KSLAP 3.50kW(C) 4.00kW(H) View model ARTH12KLLAP 3.50kW(C) 4.00kW(H) View model ARTH18KLLAP 5.00kW(C) 6.00kW(H) View model ARTH18KSLAP 5.00kW(C) 6.00kW(H) View model
Operation Type
Reverse Cycle Reverse Cycle Reverse Cycle Reverse Cycle Reverse Cycle Reverse Cycle
Power Source V/Ph/Hz
230 / 1 / 50 230 / 1 / 50 230 / 1 / 50 230 / 1 / 50 230 / 1 / 50 230 / 1 / 50
Capacity Class kW
2.5 2.5 3.5 3.5 5 5
Cooling Capacity kW (Rated (Min - Max))
2.50 (0.9 - 3.6) 2.50 (0.9 - 3.6) 3.50 (0.9 - 4.1) 3.50 (0.9 - 4.1) 5.00 (0.9 - 5.9) 5.00 (0.9 - 5.9)
Heating Capacity kW (Rated (Min - Max))
3.20 (0.9 - 4.5) 3.20 (0.9 - 4.8) 4.00 (0.9 - 5.1) 4.00 (0.9 - 5.5) 6.00 (0.9 - 7.5) 6.00 (0.9 - 7.1)
Input Power Cooling kW (Rated (Max))
0.64 (1.15) 0.61 (1.11) 0.98 (1.41) 0.93 (1.33) 1.38 (2) 1.48 (1.95)
Input Power Heating kW (Rated (Max))
0.8 (1.5) 0.77 (1.48) 1.1 (1.97) 1.05 (1.87) 1.6 (2.39) 1.73 (2.58)
EER Cooling kW/kW
3.91 4.1 3.57 3.76 3.62 3.38
COP Heating kW/kW
4 4.16 3.64 3.81 3.75 3.47
Star Rating Cooling (0-10) (Hot / Average / Cold)
3 / 2.5 / 3 3.5 / 3 / 3 3 / 2.5 / 2.5 3 / 2.5 / 2.5 3 / 3 / 3 3 / 2.5 / 2.5
Star Rating Heating (0-10) (Hot / Average / Cold)
2.5 / 2.5 / 2 3 / 2.5 / 2 2.5 / 2 / 1.5 3 / 2.5 / 2 3 / 2.5 / 2 2.5 / 2 / 1.5
Total Cooling Seasonal Performance Factor Residential kW (Hot / Average / Cold)
4.999 / 4.49 / 4.551 5.08 / 4.535 / 4.567 4.645 / 4.269 / 4.374 4.808 / 4.397 / 4.485 4.868 / 4.508 / 4.656 4.584 / 4.264 / 4.418
Heating Seasonal Performance Factor Residential kW (Hot / Average / Cold)
4.339 / 4.053 / 3.736 4.606 / 4.27 / 3.9 4.371 / 3.934 / 3.492 4.589 / 4.116 / 3.618 4.661 / 4.105 / 3.536 4.43 / 3.86 / 3.319
Total Cooling Seasonal Performance Factor Commercial kW (Hot / Average / Cold)
5.371 / 5.359 / 5.663 5.45 / 5.398 / 5.683 4.97 / 5.006 / 5.313 5.142 / 5.155 / 5.459 5.216 / 5.295 / 5.644 4.912 / 5 / 5.339
Heating Seasonal Performance Factor Commercial kW (Hot / Average / Cold)
4.329 / 4.151 / 3.879 4.598 / 4.39 / 4.074 4.373 / 4.109 / 3.73 4.592 / 4.305 / 3.88 4.667 / 4.33 / 3.843 4.439 / 4.094 / 3.628
Running Current amps (Cooling / Heating)
3.2 / 4.1 3.1 / 4 4.6 / 5.1 4.4 / 5 5.9 / 6.8 6.3 / 7.3
Moisture Removal l/hr
0.5 0.7 1.5 1.3 2 2
Indoor Sound Pressure Cooling dBA (High / Quiet)
29 / 23 28 / 25 31 / 23 29 / 26 32 / 27 33 / 23
Indoor Sound Pressure Heating dBA (High / Quiet)
29 / 23 28 / 24 31 / 23 29 / 24 32 / 27 33 / 23
Outdoor Sound Pressure dBA (Cooling / Heating)
41 / 46 41 / 46 47 / 48 47 / 48 48 / 49 48 / 49
Outdoor Sound Power dBA
59 59 61 61 62 62
Static Pressure Range PA (Min to Max)
0 to 30 0 to 90 0 to 30 0 to 90 0 to 90 0 to 50
Air Circulation (Indoor - High Fan) Cooling l/sec
167 167 181 181 261 261
Air Circulation (Indoor - High Fan) Heating l/sec
167 167 181 181 261 261
Indoor Unit Dimensions mm (Height x Width x Depth)
198 x 700 x 450 198 x 700 x 620 198 x 700 x 450 198 x 700 x 620 198 x 900 x 620 198 x 900 x 450
Indoor Unit Weight kg
15.50 17.00 15.50 17.00 20.00 18.50
Outdoor Unit Dimensions mm (Height x Width x Depth)
542 x 799 x 290 542 x 799 x 290 542 x 799 x 290 542 x 799 x 290 632 x 799 x 290 632 x 799 x 290
Outdoor Unit Weight kg
32.00 32.00 32.00 32.00 36.00 36.00
Piping Connects mm Ø (Liquid / Gas)
6.35 / 9.52 6.35 / 9.52 6.35 / 9.52 6.35 / 9.52 6.35 / 12.7 6.35 / 12.7
Pipe Length m (Max (Precharged))
20 (15) 20 (15) 20 (15) 20 (15) 30 (20) 30 (20)
Max Height Difference m
15 15 15 15 20 20
Operation Range Cooling °CDB (Min to Max)
-10 to 46 -10 to 46 -10 to 46 -10 to 46 -10 to 46 -10 to 46
Operation Range Heating °CDB (Min to Max)
-15 to 24 -15 to 24 -15 to 24 -15 to 24 -15 to 24 -15 to 24
Refrigerant Type
R32 R32 R32 R32 R32 R32
Refrigerant Amount g
850 850 850 850 1,020 1,020

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A 5 year parts and labour warranty across the entire domestic range.

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