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Airstage 450mm Deep Bulkhead Indoor R32 5.0kW




The Fujitsu ARTH18KSLAP is a compact, concealed bulkhead indoor unit designed for discreet air conditioning in bedrooms, apartments, offices and other areas where ceiling space is restricted.

Measuring only 198mm high, the unit fits neatly within shallow ceiling voids and bulkheads while delivering airflow of up to 261 L/s. Its adjustable external static pressure range of 0–50Pa provides flexibility when designing short duct runs and connecting multiple supply-air outlets.

Quiet operation down to 23dB(A) makes the ARTH18KSLAP particularly suitable for bedrooms and other noise-sensitive spaces. It can be paired with an applicable R32 single or multi-system outdoor unit, depending on the system design.

Key Features

  • Compact 198mm-high bulkhead design
  • 5.0kW capacity class
  • Suitable for concealed ceiling or bulkhead installation
  • Airflow up to 261 L/s
  • Adjustable external static pressure from 0–50Pa
  • Quiet operation down to 23dB(A)
  • Suitable for residential and light-commercial applications
  • Compatible with R32 refrigerant systems
  • Supports optional wired or wireless controllers
  • Can be connected to compatible Fujitsu single or multi-system outdoor units
  • Concealed installation preserves the room’s interior appearance

Indoor Unit Specifications

SpecificationDetails
Indoor ModelARTH18KSLAP
Product TypeConcealed bulkhead indoor unit
Capacity Class5.0kW
Indoor Dimensions198 H × 900 W × 450 D mm
Indoor Weight18.5kg
Maximum Airflow261 L/s
Static Pressure Range0–50Pa
Factory Static Pressure Setting15Pa
Sound Pressure – High33dB(A)
Sound Pressure – Quiet23dB(A)
Pipe Sizes6.35mm liquid / 12.70mm gas
RefrigerantR32
Electrical Supply230V / 1 Phase / 50Hz
Indoor Running Current0.49A
Cooling Indoor Operating Range18–32°C DB
Heating Indoor Operating Range16–30°C DB

Indoor unit only. A compatible outdoor unit, controller and installation components are required separately.


Internal Reference: ARTH18KSLAP