GEA CAIRfricostar - Aspectenvironmental.com
GEA CAIRfricostar - Aspectenvironmental.com
GEA CAIRfricostar - Aspectenvironmental.com
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<strong>GEA</strong> <strong>CAIRfricostar</strong><br />
Dehumidification Unit with Air Mixing and Heat Pump Function<br />
Type CWC<br />
Functional description of the unit<br />
The <strong>GEA</strong> <strong>CAIRfricostar</strong> CWC is designed for private and small public swimming pools.<br />
The series is available in 2 sizes. The unit's function is to dehumidify and heat air in<br />
swimming pools in air mixing mode. The unit is delivered with a DDC controls which<br />
regulates all functions of the system on a fully automated basis.<br />
Sample selection of operation modes:<br />
This unit type is additionally equipped with an efficient heat recovery system. When in<br />
idle mode without dehumidification the air is recirculated in the swimming pool. When<br />
the humidity setpoint has been exceeded the unit switches into dehumidification mode.<br />
For this purpose the supply and exhaust air fans are activated to run at high speed with<br />
continuous mixing of outdoor air. The dehumidification stage continues until the actual<br />
humidity value lies below that of the humidity setpoint. After that the fans are deactivated.<br />
Idle mode without dehumidification<br />
demand<br />
Active hours operation mode with<br />
dehumidification demand<br />
Idle mode with dehumidification<br />
demand<br />
Bypass damper mode, exhaust air fan<br />
is deactivated,<br />
Supply air fan runs at low speed.<br />
Air mixing operation according to VDI, exhaust<br />
and supply air fans run at high speed.<br />
The reheater provides the missing residual<br />
heat supply.<br />
Air mixing operation, exhaust and supply air<br />
fans are operating at high speed. The reheater<br />
provides the missing residual heat supply.<br />
Active hours/summer operation mode<br />
Summer mode / inactive operating „free night cooling“<br />
Fresh air mode, exhaust and supply air fans run at high speed. Heat<br />
recovery is not used thanks to a damper system.<br />
If the swimming pool is overheated during the night time or idle period<br />
the unit ventilates only in outdoor/exhaust air mode. The fans run at<br />
high speed and provide cooling of the swimming pool to reach the<br />
setpoint temperature. In case of an optional bypass of the heat recovery<br />
system the heat recovery is not used thanks to a damper system<br />
and at the same time the air volume flow is increased.<br />
PR-2008-0327-GB • Subject to modifications • Status 05/2009 49<br />
Air mixing dehumidifier CWC