GEA CAIRfricostar - Aspectenvironmental.com

GEA CAIRfricostar
Dehumidifier with Air Recirculating and Heat Pump Function
Type CAU
Functional description of the unit
The GEA CAIRfricostar CAU is mainly designed for private swimming pools and can
be delivered in 4 sizes. The unit's function is to dehumidify and heat air in swimming
pools in circulating air mode. The unit is supplied with a fully electronic control system
that automatically regulates system functions.
Operation mode with dehumidification demand
In circulating air mode without dehumidification the air is recirculated in the swimming
pool. The multifunction humidistat that is installed in the swimming pool switches the
unit into dehumidification mode as soon as the humidity setpoint has been exceeded.
At this point the fan is switched into speed 2 and the refrigeration circuit is activated.
The dehumidification process is carried out until the setpoint is reached. After that the
fan is switched into speed 1 and the circuit compressor is stopped. Using an optional
pool water condenser a certain amount of excess energy produced by the heat pump
cycle can be fed back into swimming pool water or similar circuit system.
Air recirculating dehumidifier CAU
Supply air fan runs at high speed. The necessary transmission heat is provided by the reheater coil. Using
an optional pool water condenser a certain amount of excess energy can be fed back into swimming
pool water.
System and controls scheme
M
M
M
M1
M
p
P
P
M
M
p
DI
AI
DO
AO
PR-2008-0327-GB • Subject to modifications • Status 05/2009 3