A comprehensive resource for Design & product specification for Toshiba, FujitsuCIAT and Aspen products.

CIAT Neptus


Compact WATER-TO-AIR units designed for heating and air conditioning new and renovated commercial buildings with water loop systems. They can be used for buildings or small commercial areas that are connected to ground loop installations (geothermal installation).

The unit has been designed to be installed either in-store or in a technical room.


In the NEPTUS range of water-to-air heat pumps, water is the fluid that enables heat to be exchanged with the outdoor circuit. The unit supplies or acquires energy from the water contained in a water loop or exchanges energy with the ground (geothermal energy source).


9 models available:

  • NEPTUS RXP: cooling only version
  • NEPTUS IXP: reversible heat pump version

Range of Use:

Cooling Capacity from 24 to 92 kW.

Heating Capacity from 28 to 110 kW.

Air flow rates from 4.700 to 17.000 m3/h