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Upm Sequence Of Operation - Bosch ES025 Installation And Maintenance Manual

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14 | UPM Sequence of Operation

UPM SEQUENCE OF OPERATION
Y1 = ON
YES
POWER/ SWITCHES/SENSOR
STATUS CHECK
V > 18VAC
YES
CLOSED
YES
=CLOSED
YES
FRZ >TEMP
YES
CON > 0
YES
POWER UP
YES
T111970291 (2015/01)
START
RESET ON
NO
YES
CLEAR FAULTS
NO
HPC =
NO
LPC
START
TIMER
NO
START
LIMIT
TIMER
NO
NO
START
ANTI SHORT CYCLE
INITIAL
NO
START
RANDOM START UP
Figure # 15 UPM Sequence of Operation
Subject to change without prior notice
RESET ON R
R = 24VAC
Y
NO
BLINK CODE ON STATUS LED
SOFT LOCKOUT
RECORD ALARM
START COUNTER (IF APPLICABLE)
LOCKOUT CAN BE SET
TO 4 VIA DIP SWITCH
BLINK CODE
ON STATUS LED
TIME > 120
SEC
YES
NO
TIME > 30
SEC
YES
NO
NO
T > ASC OR
RS SEC
LEGEND:
HPC - HIGH PRESSURE CUTOUT
LPC - LOW PRESSURE CUTOUT
FRZ - FREEZE PROTECTION CONDITION
CON - CONDENSATE OVERFLOW CONDITION
CC - COMPRESSOR COIL
ASC ANTI SHORT CYCLE
YES
NO
COUNTER
NEEDED?
NO
YES
COUNT = 2
OR
COUNT = 4
NO
YES
NO
HARD
LOCKOUT?
YES
BLINK CODE ON STATUS LED
DISPLAY OUTPUT = PULSE
ALR OUTPUT = ON/PULSE
CC OUTPUT = OFF
YES
CC OUTPUT = ON
ES Series
ES Series

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