22
GB
GB
F
E
96440-02.2020-DGbRu
WARNING
Several capacity regulators cannot switch at the same time during
compressor operation! Otherwise the sudden change in load can
damage the compressor! Comply with the switching interval of 60 s.
•
Comply with the switching sequence:
Switching
on CR1 60s CR2 60s CR3
Switching off
CR3
60s
CR2
60s
CR1
Special accessories are only premounted in the factory if ordered specially by customer. Retrofitting is
possible in full compliance with the safety instructions and repair instructions enclosed with the kits.
Information about the use, operation, maintenance and servicing of the components is available in the
printed literature or on the internet under www.gea.com.
ATTENTION
Capacity-regulated operation alters the gas speeds
a n d p r e s s u r e ra t i o s o f t h e r e f r i g e r a t i n g p l a n t :
Adjust the suction line routing and dimensioning accordingly,
do
not set the control intervals too close and do not let the system
switch more than 12 times per hour (refrigerating plant must have
reached a state of equilibrium). Continuous operation in the control
stage is not permitted.
We recommend switching to unregulated operation (100 % capac-
ity) for at least 5 minutes per capacity-regulated operating hour.
An assured oil return can also be realised by a 100 % capacity
requirement after each compressor restart.
Electrical actuation of the solenoid valve: Normally open, (cor
-
responds to 100 % compressor capacity).
7
|
Accessories
7.3 Elevated base plate
The compressor can be equipped with a
elevated base plate.
This increases the oil volume by 4.6 liters,
the weight increases by 19.2 kg.
Fig. 31