JOHNSON CONTROLS
10
FORM 160.76-O1
ISSUE DATE: 6/15/2015
SECTION 2 - SYSTEM OPERATING PROCEDURES
LD06502
FIGURE 4 -
CHILLER STARTING SEQUENCE AND SHUTDOWN SEQUENCE (EM STARTER AND SOLID
STATE STARTER)
0
10
13
45
50
110
(0.17) (0.22) (0.75) (0.83)
(1.83)
START
VANES
START
TO
CLOSE
VANES
CLOSED
1800
(30)
RESTART
FLOW
BYPASS
SWITCH
MAN. OIL
PUMP
DISABLED
AUTO ZEROING DIFFERENTIAL
OIL PRESSURE TRANSDUCERS
ENERGIZE (OPEN)
OIL RETURN SOLENOID & LIQUID LINE
SOLENOID (J COMPRESSOR ONLY)
** VANES CLOSING - TIME
DEPENDENT ON INITIAL
VANE POSITION
OIL PRESSURE CHECK
OIL PUMP ON
150 SEC.
(2.5 MIN)
"SYSTEM
COASTDOWN"
"SYSTEM
SHUTDOWN"
TIME IN SECONDS (MINUTES)
DISPLAY
MESSAGE
"SYSTEM RUN"
"SYSTEM PRELUBE"
** "VANES CLOSING
BEFORE
SHUTDOWN"
** Not for all shutdowns. Refer to “Display Messages” in manual
Optiview™ Control Center – Operation and Maintenance (Form 160.54-O1).
FIGURE 5 -
CHILLER STARTING SEQUENCE AND SHUTDOWN SEQUENCE (VARIABLE SPEED DRIVE)
0
10
13
45
50
110
(0.17) (0.22) (0.75) (0.83)
(1.83)
START
VANES
START
TO
CLOSE
VANES
CLOSED
FLOW
BYPASS
SWITCH
MAN. OIL
PUMP
DISABLED
AUTO ZEROING DIFFERENTIAL
OIL PRESSURE TRANSDUCERS
ENERGIZE (OPEN)
OIL RETURN SOLENOID & LIQUID LINE
SOLENOID (J COMPRESSORS ONLY)
** VANES CLOSING - TIME
DEPENDENT ON INITIAL
VANE POSITION
OIL PRESSURE CHECK
OIL PUMP ON
150 SEC.
(2.5 MIN)
"SYSTEM
COASTDOWN"
"SYSTEM
SHUTDOWN"
TIME IN SECONDS (MINUTES)
DISPLAY
MESSAGE
600
(10)
RESTART
(ONLY AFTER FIFTH
SUCCESSIVE RESTART)
RESTART
(IF FIVE SUCCESSIVE
RESTARTS HAVE NOT
OCCURED)
"SYSTEM RUN"
"SYSTEM PRELUBE"
** "VANES CLOSING
BEFORE
SHUTDOWN"
** Not for all shutdowns. Refer to “Display Messages” in manual
Optiview™ Control Center – Operation and Maintenance (Form 160.54-O1).
LD06504
