Figure 9 - Operation Sequence Timing Diagram (Compressor Motor Variable Speed Drive Applications) - York OPTIVIEW YK Service Instructions Manual

SECTION 2 - SYSTEM ARCHITECTURE
TIMING DIAGRAM – CHILLERS EQUIPPED WITH FIXED SPEED OIL PUMP (STYLE C)
DISPLAY
MESSAGE
"SYSTEM RUN"
"SYSTEM PRELUBE"
** "VANES CLOSING
BEFORE
SHUTDOWN"
"SYSTEM
COASTDOWN"
"SYSTEM
SHUTDOWN"
0
(0.17) (0.22) (0.75) (0.83) (1.08)
START
TIMING DIAGRAM – CHILLERS EQUIPPED WITH
VARIABLE SPEED OIL PUMP
(STYLE D/E/F)
DISPLAY
MESSAGE
"SYSTEM RUN"
"SYSTEM PRELUBE"
** "VANES CLOSING
BEFORE
SHUTDOWN"
"SYSTEM
COASTDOWN"
"SYSTEM
SHUTDOWN"
0
(0.17) (0.22) (0.75) (0.83)
START
FIGURE 9 - OPERATION SEQUENCE TIMING DIAGRAM (COMPRESSOR MOTOR VARIABLE SPEED
DRIVE APPLICATIONS)
30
AUTO ZEROING DIFFERENTIAL
OIL PRESSURE TRANSDUCERS
MAN. OIL
PUMP
DISABLED
10 13 45 50 65
TIME IN SECONDS (MINUTES)
AUTO ZEROING DIFFERENTIAL
OIL PRESSURE TRANSDUCERS
MAN. OIL
PUMP
DISABLED
10 13 45 50
TIME IN SECONDS (MINUTES)
JCI COMPANY CONFIDENTIAL
ENERGIZE (OPEN) HIGH SPEED
THRUST SOLENOID
ENERGIZE (OPEN) LIQUID LINE*, VENT LINE
AND OIL RETURN SOLENOIDS
** VANES CLOSING - TIME
DEPENDENT ON INITIAL
VANE POSITION
FLOW
BYPASS
SWITCH
110
VANES VANES
(1.83) START CLOSED
TO
CLOSE
* The Liquid Line solenoid will only be energized during this period when
the oil temperature reaches > 140°F. It will then be de-energized when
the temprature is less than 135°F.
** Only applicable to the following shutdowns. When any of these shutdowns
are performed, the vanes are driven fully closed before the starter is
de-energized. When the vane motor switch closes (or 210 seconds from
start of vane closure have elapsed), the starter is de-energized.
1. Low Water Temperature; 2. Multi-Unit Sequence (TB4-9); 3. Remote/
Local Cycling (TB4-13); 4. Internal Time Clock; 5. Remote Stop (TB4-8);
6. Remote Stop (ISN serial port). Operator initiated Soft Shutdown (Flash
memory card version C.MLM.01.06.xxx and later or C.MLM.04.02.xxx)
ENERGIZE (OPEN)
OIL RETURN SOLENOID AND LIQUID LINE
SOLENOID (J COMPRESSORS ONLY)
** VANES CLOSING - TIME
DEPENDENT ON INITIAL
VANE POSITION
OIL PRESSURE CHECK
FLOW
BYPASS
SWITCH
110
VANES VANES
(1.83)
START CLOSED
TO
CLOSE
RESTARTS HAVE NOT
ISSUE DATE: 10/25/2019
OIL PRESSURE CHECK
OIL PUMP ON
150 SEC.
(2.5 MIN)
RESTART
RESTART
(IF FIVE SUCCESSIVE
(ONLY AFTER FIFTH
RESTARTS HAVE NOT
SUCCESSIVE RESTART)
OCCURED)
OIL PUMP ON
150 SEC.
(2.5 MIN)
RESTART
RESTART
(IF FIVE SUCCESSIVE
(ONLY AFTER FIFTH
SUCCESSIVE RESTART)
OCCURED)
JOHNSON CONTROLS
FORM 160.54-M1
600
(10)
LD06503
600
(10)
LD06504