FORM 160.54-M1(503)
17
YORK INTERNATIONAL
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"
0 10 13 45 50 65 110
(0.17) (0.22) (0.75) (0.83) (1.08) (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) HIGH SPEED
THRUST SOLENOID
ENERGIZE (OPEN) LIQUID LINE, VENT LINE
& OIL RETURN SOLENOIDS
** VANES CLOSING - TIME
DEPENDENT ON INITIAL
VANE POSITION
OIL PRESSURE CHECK
OIL PUMP ON
150 SEC.
(2.5 MIN)
"SYSTEM RUN"
"SYSTEM PRELUBE"
** "VANES CLOSING
BEFORE
SHUTDOWN"
"SYSTEM
COASTDOWN"
"SYSTEM
SHUTDOWN"
TIME IN SECONDS (MINUTES)
DISPLAY
MESSAGE
TIMING DIAGRAM – CHILLERS EQUIPPED WITH FIXED SPEED OIL PUMP (STYLE C)
TIMING DIAGRAM – CHILLERS EQUIPPED WITH
VARIABLE SPEED OIL PUMP
(STYLE D/E/F)
LD06501
LD06502
FIG. 5 – OPERATION SEQUENCE TIMING DIAGRAM
(ELECTRO-MECHANICAL & SOLID STATE STARTER APPLICATIONS)
**Only applicable to the following shutdowns. When any of these
shutdowns are performed, the vanes are driv en fully closed before
the starter is de-energized. When the vane motor switch clos es
(or 210 seconds from start of vane clo sure have elapsed), the
starter is de-energized. 1. Low Water Tem per a ture; 2. Multi-Unit
Sequence (TB4-9); 3. Remote/Local Cycling (TB4-13); 4. Internal
Time Clock; 5. Remote Stop (TB4-8); 6. Re mote Stop (ISN Serial
Port). Operator initiated Soft Shut down (Flash Memory Card ver-
sion C.MLM.01.06.xxx and lat er or C.MLM.04.02.xxx)
2
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