GEA Grasso DX RR 200, Product Information

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PRODUCT INFORMATION
LIQUID CHILLER GRASSO DX R
200 ... 1600
14 _601011_pi_dxr_gbr_1_.doc
4.4 Condenser type
Three design series of DX R Chillers are offered.
All series are equipped with shell and tube heat exchangers as evaporator.
The condenser can be a shell and tube heat exchanger (standard), air cooled condenser or evaporative condenser
as required.
DX Chiller with water cooled shell and tube heat exchangers as condenser (RR types) are equipped with a water-
cooled oil cooler.
The types LR and VR are designed with a thermosysphon oil cooler
Hint!
Pay attention to altitude differences between chiller and condenser!
The required HP-receiver is built-on the chiller.
Chillers RR series are delivered with condenser. Chillers LR and VR series require general a separate delivery
(without condenser).
The components are connected on site (split installation).
4.5 Control unit
In the standard design, the ALC are equipped with a standard SPC. The SIMATIC guarantees the control and safety
monitoring for all chiller components. A background illumination LCD display allows reading of all operating and
fault messages as well as process variables. The display is operated via a robust keypad having function and system
keys.
4.6 Low voltage Power Panel
The low voltage power panel is completely wired with all chiller sensors and actuators as well as prepared for
connection with the external incoming-feeder cable.
4.7 safety devices against pressure exceedings
The chiller is equipped with a safety pressure limiter (TÜV-application) and a pressure transducer, which prevent
exceeding the discharge pressure limitation value (demand of UVV VBG 20).
The pressure relief valve prevents pressure exceeding higher than the permissible limitation value.
Blow-off safety valves are mounted only in that case, if it is required by specifications valid on site of installation.
4.8 Reduce effects of released Ammonia
Effects of released Ammonia can be reduced depending on installation conditions by:
— enforced venting with ventilators,
— absorption by insertion into a water vessel or
— neutralization with suited substances as CO
2
or venegar acidity.
Grasso GmbH Refrigeration Technology offers fittings for required precautions.
Depending on machine room situation and refrigerant charging Grasso GmbH Refrigeration Technology offers a
series of absorption devices.