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YORK INTERNATIONAL
59
FORM 155.16-O3
START 30 MINUTE
CHILLED WATER
PUMP TIMER
BYPASS DILUTION
CYCLE – SHUTDOWN
ALL PUMPS EXCEPT
CHILLED WATER
STEAM
UNIT
DE-ENERGIZE
6 SOL TO CLOSE
STEAM CONDENSATE
DRAIN VALVE
CLOSE SAFETY
STATUS CONTACTS
TB4-42/43
DE-ENERGIZE 1R
RELAY TO CLOSE
STEAM/HOT WATER
SHUTOFF VALVE
23
PAGE 21
30 MIN.
CH WATER
PUMP TIMER
ELAPSED
SHUTDOWN
CHILLED
WATER
PUMP
NO
YES
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
NO
YES
➤
NO
YES
CHECK
REEFRIGERANT
TEMP @ RT 8
CHILL
WATER
FLOW SWITCH
CLOSED
A
B
C