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COSTAN TECHNICAL DOCUMENTATION
REVISION STATUS
TRUE COPY
PAGE 23 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
Actuation diagram for safety electronic and electromechanical devices – LT applications
using R404A.
PLP
(KP1)
(0 bar)
(-46°C)
PoMin
1
(0,1 bar)
(-44°C)
NORM
A
L OPER
ATION ZONE
UNDER CONTROLLE
R
REGULATI
ON
1
Controller parameter to be configured as explained in the “REGULATION” section of the Use and Maintenance manual.
stands for the tripping point of mechanical backup pressure switches
set
point
Po
-37°C
PSB
(KP1)
(0,5bar)
(-37°C)
PHP-C
(KP5)
(26,5bar)
(+58,1°C)
PHP-1
(KP7B)
(27 bar)
(+59°C)
PHP-2
(KP7S)
(28 bar)
(+60,6°C)
PV3
(KP5)
(16,3bar)
(+38°C)
PV2
(KP5)
(15,0bar)
(+35°C)
PV4
(KP5)
(17,0bar)
(+40°C)
PV1
(KP5)
(13,9bar)
(+32°C)
Operation zone of controller
EKC331
IR32Z3
uRack
and
mechanical safety pressure
switches
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