GEA Grasso DX 600, Информация о продукте

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PRODUCT INFORMATION
LIQUID CHILLER GRASSO DX R
200 ... 1600
_601011_pi_dxr_gbr_1_.doc 15
4.9 Optional equipment
4.9.1 Pressure gauge kit
The pressure gauge kit in addition to compressor control device consists of pressure gauges for:
— suction pressure (evaporator, compressor),
— discharge pressure (compressor, condenser),
— Oil pressure
4.9.2 Dual oil filter
A second oil filter can be installed for changing oil filter during compressor operation.
4.9.3 Connection flanges
Evaporator Connection flanges without counter flange are the standard application for all model types.
Counter flanges at evaporator are optional.
Condensers are without flanges for DX chiller model types RR 200 - RR 350 (standard application).
Counter flanges for condensers are optional.
4.9.4 Hydraulic Adjustment of the internal volume ratio (Vi)
The compressor may have a fixed or a hydraulically adjustable internal volume ratio (Vi) depending on its design.
A hydraulic Vi-adjusting system guarantees compression at the lowest loss possible under the respective operating
conditions and thus saves drive power (see the Screw Compressor Datasheet).
The internal volume ratio is variable, depending on the design and type of the compressor, across a range from Vi
= 2.6 to Vi = 5.5.
4.9.5 L2-Bus communication of compressor control device
All analogue signals of DX chiller can pass on via the SINEC-L2 interface.
The master control has to be controled with the same software protocol.
One master control can be connect with up to 32 chillers.
4.9.6 Anti-vibration mounting
In this form of installation, the DX chiller is erected on vibration isolators which are bolted by screws to the DX
chiller but not to the levelled concrete foundation.
fig. 1: Isolator without foundation fixation
The isolators retain their permanent resilience under design load. The levelling range is 20 mm. The Chiller has a
firm stand due to its design surface pressure and the resulting friction coefficient between isolator and
foundation.