GEA CAIRfricostar - Aspectenvironmental.com

GEA CAIRfricostar
GEA motor 3-way mixing
valve:
Control and regulation
system
The switch cabinet is
supplied with the following
main components:
Dehumidifier with Air Recirculating and Heat Pump Function
Type CAU
– Supplied loose for air reheating coil including actuator 230 V with an automatic step
measurement system for fine adjustment of water flow rate
– Supplied loose, installation by others
– Consists of a separate switch cabinet for mounting on units with all necessary components
for control functions, wired according to VDE specifications.
– Electrical connection (via plug or screw terminals) between control cabinet and unit
using factory prepared and fully assembled lines.
– Mains voltage for control of mixing valve and reheater pump (including controls)
– Possible output for pool water pump
– The switch cabinet is supplied loose, including fixing material for mounting on the
unit
– All electronic control and regulation components can be easily replaced
– Main isolating switch for all pole shut-down of the electrical unit
– Group fuses for fan and compressor
Safety fuse for pump reheater circuit 230V
Control fuse and control voltage supply unit 24V (safety extra-low voltage or SELV)
Control of supply air fan using motor full protection device via PTC
temperature sensor and electronic motor tripping device
– Control of compressor motor with thermal motor protection and interlock for safety
chain and control card, control of icing protection, low and high pressure.
– Electronic control card for compressor regulation with minimum run and standstill
time as clock protection, service reset button, status messages for timer control and
light diode for faults of the refrigeration circuit.
– Humidistat with remote control for mounting in the swimming pool, with status and
fault lamp and operation switch.
Operation with safety extra-low voltage.
Setpoint setting 30-90 % r.h.
Colour: white
On-wall mounting
Dimensions: W/H/D 145/80/30 (mm) supplied loose
– Electronic three point PI-controller for exhaust air temperature control with setpoint
setting on the switch cabinet including installed NTC exhaust air temperature sensor.
– Output 230V for modulating 3-way valve motor in reheater circuit
– If necessary GEA pool water temperature control for controlling pool water pump
consisting of an integrated immersion thermostat, interlocking with compressor
operation and output for pool water pump 230V (only control output max. 2A) and
time control for registration of actual values (only in combination with pool water
condenser)
– Output for collective error message signal (floating change-over contact)
– Control possibility of an exhaust fan by others, 2-speed, 230 V/max. 150 W
Air recirculating dehumidifier CAU
PR-2008-0327-GB • Subject to modifications • Status 05/2009 5