Along with all the other air-conditioning units, the air-conditioning systems of the AT4 range ensure perfect and dependable air conditioning.

The integrated refrigeration cycle boasts optimized refrigeration control to ensure optimum cooling and dehumidification. Optionally available as throttle-control valve or hot-gas bypass control it ensures adjustment of refrigeration, as needed, to the respective loads under alternating requirements.

The refrigeration cycles including all control and safety devices, are incorporated completely within the air-conditioning products and wired with an integrated control cabinet.
Piping and wiring of the integrated refrigeration cycle by the manufacturer ensures maximum operational safety.
The compressor, the evaporator and all significant hydraulic and safety-relevant system components are installed in the air-intake part of the air-conditioning system.

To ensure environmentally-sound refrigeration, R407c is used as refrigerant.

Two different condenser systems, i.e. either integrated or external, are available.