14 EN/09.2017/G44 © STULZ GmbH – all rights reserved
cybercool indoor chiller original instructions
Version GE
The cooling medium circuit contains a plate condenser as interface to the refrigerant circuit, a plate heat
exchanger as interface to the chilled water circuit, a 2-way valve (GE valve) to control the water flow through
the heat exchanger for free cooling, a 2-way valve (G valve) to control the condensation pressure in the plate
condenser, a valve for filling and draining and two deventilation valves.
In the DX- and Mix mode the G valve controls the condensation pressure, which is measured by a pressure
sensor upstream the condenser and is compared with a setpoint. In the FC mode (free cooling) this valve is
closed.
In the FC- and Mix mode the GE valve controls the water flow in the cooling medium circuit and by this the
water temperature in the chilled water circuit. In DX mode this valve is closed.
Rear view
of version GE
Evaporator
3-way valve
GE valve
GE heat exchanger
G valve
Condenser
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