Section 2
Considerations before Installation
It is recommended to have an air blower in your facility to drain the compressor. To use
an air blower, connect the hose for the air blower to the “Cooling water inlet” fitting instead
of the cooling water pipe which is used usually.
2.5 Length of cables and flexible hoses
Standard length of optional cables and flexible hoses are listed in Table2-4.
Table 2-4
Standard cables and flexible hoses
Item
Standard length [m]
Quantity
Input power cable
3
1
Refrigerator cable
3
*
Flexible hose
3
2 x *
“*” shows total number of refrigerators connected to single compressor.
NOTE
: Please contact our Service Engineering Division or the nearest customer support
center for different length of cables and/or flexible hoses.
2.6 Remote functions
Compressors can be remote-controlled from customer’s equipment side.
The following provides information on features and functions of the remote interface and
the time chart of signals. It is also available to select an operating mode of the compressor
in accordance with your applications. The following information also contains instructions
for selecting operating modes.
2.6.1 Remote
Interface Specifications
Remote
Interface Specifications are indicated in Table 2-5.
Table 2-5
Remote interface specifications
Item
Specification
Model Signal
Quantity
C30VR
Input
3
Photo Coupler Isolation Input
Maximum Input voltage: 26VDC, Input Current: less than
8mA
Rated Input Voltage: ON:20V and above, OFF:3V or less
C30MVR 6
C30VR
Output
2
No-voltage a contact
Maximum Load: 30VDC / 100mA
C30MV
_
R 5
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Содержание C30MVER
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