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Duct Type

S

SS AIR HVAC LTD.

Key Info

Capacity Range : Broad range from 2.5 kW to 28.0 kW, catering to everything from single bedrooms to large industrial halls.
External Static Pressure (ESP): : * Slim Models: Up to 120 Pa (ideal for short duct runs in residential bulkheads).
High-Static Models : Up to 230 Pa (designed for long, complex ducting in commercial spaces).
Operational Range : Systems are rated to maintain cooling performance in ambient temperatures up to 52°C and heating down to -20°C.
REQUEST A QUOTE

Hitachi offers a comprehensive range of Ducted Type (Concealed) air conditioning systems designed for both residential and commercial applications. These systems are characterized by their "invisible" installation, where only the grilles are visible in the ceiling or wall.

Based on current 2026 technical data, here is a breakdown of the primary series and their specifications:

1. RAD Series (Residential / Light Commercial)

This series is optimized for homes and apartments where ceiling space is limited.

  1. Ultra-Slim Design: Indoor units start with a height of only 190mm (RAD-xxNT models) to 270mm (RAD-E series), making them ideal for shallow bulkheads.
  2. Flexible Static Pressure: Supports up to 150Pa of External Static Pressure (ESP), allowing for longer duct runs or more complex layouts.
  3. Quiet Operation: Sound levels as low as 30dB(A) (Low fan mode).
  4. Key Features: Smart control via smartphone (airCloud Go), 900mm drainage lift pump, and FrostWash self-cleaning technology to prevent mold.

2. RPI Series (Commercial / High Capacity)

The RPI series is built for larger spaces like offices, restaurants, and retail stores.

  1. High Capacity Range: Available from 5.0kW up to 16.0kW (and up to 28kW in VRF configurations).
  2. High ESP (External Static Pressure): Some models offer up to 230Pa, designed to push air through extensive ductwork networks.
  3. Separable Design: Larger units feature a separable indoor chassis for easier installation through tight access hatches or manholes.
  4. Zoning Capabilities: Often paired with Premium Zone Control, allowing for individual temperature settings in up to 14 different zones.

3. "airCore 700" Series (The Latest Standard)

As of 2026, the airCore 700 represents the mid-to-high scale ducted split systems.

  1. Refrigerant: Uses R32, which has a lower Global Warming Potential (GWP) than older R410A systems.
  2. Ambient Performance: Operates reliably in extreme temperatures, typically from -20°C to 52°C.
  3. Configurations: Available in both Mid ESP and High ESP variants to match specific building requirements.