14
YORK INTERNATIONAL
FLOAT
SW 3F
CLOSED
FLOAT
SW 1F
CLOSED
REFRIG
PUMP (1F)
START-UP DELAY
TIMER
ELAPSED
START
REFRIGERANT
PUMP (2M)
REFRIG
PUMP (2M)
RUNNING
REFRIG
FLOAT SW
SHUTDOWN
TIMER
ELAPSED
SAFETY SHUTDOWN –
DISPLAY “DAY-TIME-
REFRIGERANT PUMP
FLOAT SW FAILURE”
AS STATUS
FLOAT
SW 3F
CLOSED
FLOAT
SW 1F
CLOSED
START REFRIG PUMP
START-UP DELAY SET-
POINT TIMER (1-900 SEC)
WHEN 1F CLOSES
START REFRIGERANT PUMP WHEN
“REFRIG PUMP START-UP DELAY
SETPOINT TIMER” (1F) HAS ELAPSED
FLOAT
SW 3F
OPEN
FLOAT
SW 1F
CLOSED
BOTH
REFRIG PUMP
START-UP (1F) AND
SHUTDOWN (3F)
DELAY SETPOINT
TIMERS
ELAPSED
SAFETY
SHUTDOWN –
DISPLAY “DAY-TIME-
REF PUMP FLOAT
SW CONFLICT”
AS STATUS
43
PAGE 87
FLOAT
SW 1F
OPEN
FLOAT
SW 3F
OPEN
START REFRIG PUMP
SHUTDOWN DELAY SETPOINT
TIMER (1-45 SEC)
WHEN 3F OPENS
42
4
PAGE 86
PAGE 35
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
SHUTDOWN REFRIG PUMP WHEN
“REFRIG PUMP SHUTDOWN DELAY-
SETPOINT TIMER” (3F) HAS ELAPSED
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
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A
B
A