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COSTAN TECHNICAL DOCUMENTATION
REVISION STATUS
TRUE COPY
PAGE 17 OF 18
PRODUCT:
EPTAGLOO
ORD
DATE
CHANGE ORDER
OF THE SIGNED
DATE OF 1st ISSUE
A
18.Dec.2008
UPDATE
ORIGINAL
13/June/07
DOC. no. QSM0000406A
CHAP. No.:
040
B
28.July.2009
UPDATE
C
CHAPTER:
INSTALLATION
C
23.Feb.2010
RANGE
EXTENSION
D
11.Nov..2010
SAFETY VALVE ADDED
ISSUED BY MKT
PRESSURE-SWITCH FOR THE CONTROL OF COMPRESSORS WHEN UNDER
BACK-UP FUNCTIONING
Low pressure side
MT
LT
I.D. FUNCTION
R404A
bar
1
(°C)
2
R404A
bar (°C)
COMPRESSOR SHUTDOWN
(LOW-PRESSURE BACK-UP)
2,6
(-14)
0,5
(-37)
PSB
3
UTQ39040 - SHEET 4
DIFFERENTIAL 1,0
0,7
1
Bar relative.
2
The saturation temperature corresponding to calibration pressure is shown in brackets.
3
Low pressure switch KP1 , automatic-reset, adjustable-calibration type, for electromechanical operation in the event of controller failure
(compressor cycling).
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