GEA CAIRfricostar - CS Klimateknik

Technical DescriptionGEA CAIRfricostarexceeded. At this point the fan is switched into speed 2, and the refrigeration cycle isactivated to start the dehumidification process. The dehumidification stage continuesuntil the humidity setpoint has been reached. After that the fan is switched back intospeed 1, and the compressor within the refrigeration cycle is stopped. Using an optionalpool water condenser a certain share of excess energy produced by the refrigerationcycle can be fed back into swimming pool water.3.2.2 CMU unitsThe GEA CAIRfricostar CMU unit has been developed for private swimming pools andis not intended for public ones. The series is available in 6 different sizes. The unitdehumidifies and heats the air of a swimming pool in a circulating air mode. It is suppliedwith the DDC control system which enables full automatic operation of all unitfunctions.Fig. 3-2:GEA CAIRfricostar CMUWhen in idle mode without dehumidification the air is moved around the swimmingpool. When the humidity setpoint has been exceeded the unit switches into dehumidificationmode. At this point the supply air fan is switched into speed 2 with the exhaustair fan supporting the air circulation and continuing to run at speed 1. The refrigerationcycle is activated to start the dehumidification process. Using the bypass damper a certainpart of return air is mixed without further treatment with dehumidified air that haspassed through the refrigeration cycle. The dehumidification stage continues until theactual humidity value lies below that of the humidity setpoint. After that the fan is switchedback into previous speed and the refrigeration cycle is stopped.When in active hours swimming pool mode the fresh and exhaust air dampers are opened,the bypass damper is closed. The dehumidification takes place via the activationof the refrigeration cycle with both fans switched into speed 2.Using an optional pool water condenser a certain share of excess energy produced bythe refrigeration cycle can be fed back into swimming pool water.3.2.3 CAM unitsThe GEA CAIRfricostar CAM unit has been developed for all types of private or publicswimming pools. The series is available for air volume flow ranging from 750 up to45.000 m³/h. The unit dehumidifies and heats the air of a swimming pool in a mixed airmode. Together with a refrigeration unit (heat pump) the CAM unit is equipped with anefficient heat recovery system. It is supplied with the DDC control system which enablesfull automatic operation of all unit functions.12 PR-2006-0019-GB • Subject to modifications • Status 05/2009