49
OPERATION
Power Up Mode
The unit will not operate until all the inputs, terminals and safety
controls are checked for normal operation.
NOTE: The compressor will have a 5-minute anti-short cycle
upon power up.
Unit Protection Module (UPM)
Figure 39 shows the UPM sequence of operations for unit safeties.
All 50PS units are equipped with a UPM.
Fig. 39 —
UPM Sequence of Operations
CC
LOCKOUT CAN BE SET
TO 4 VIA DIP SWITCH
BLINK CODE ON STATUS LED
SOFT LOCKOUT
RECORD ALARM
START COUNTER (IF APPLICABLE)
CC OUTPUT = ON
NO
YES
LPC
=CLOSED
FRZ >TEMP
LIMIT
Y1 = ON
TIME > 30
SEC
CON > 0
POWER/ SWITCHES/SENSOR
STATUS CHECK
START
TIMER
NO
YES
NO
YES
NO
YES
T > ASC OR
RS SEC
YES
NO
NO
YES
START
ANTI SHORT CYCLE
INITIAL
POWER UP
YES
NO
START
RANDOM START UP
START
COUNTER
NEEDED?
YES
COUNT = 2
OR
COUNT = 4
BLINK CODE ON STATUS LED
DISPLAY OUTPUT = PULSE
ALR OUTPUT = ON/PULSE
NO
YES
HARD
LOCKOUT?
CC OUTPUT = OFF
V > 18VAC
NO
YES
YES
NO
BLINK CODE
ON STATUS LED
NO
RESET ON
Y
CLEAR FAULTS
R = 24VAC
NO
YES
NO
YES
NO
YES
HPC =
CLOSED
RESET ON R
CC OUPUT=
ON
NO
YES
TIME >
120 SEC
START
TIMER
NO
YES
CNT = CNT+1
Summary of Contents for AQUAZONE 50PSH
Page 17: ...17 Fig 15 PSC Motor Single Phase Single Stage WSHP Open Control ...
Page 20: ...20 Fig 18 Constant Torque Motor Single Phase Single Stage WSHP Open Control ...
Page 23: ...23 Fig 21 Constant Airflow Single Phase WSHP Open ...
Page 26: ...26 Fig 24 PSC Motor Three Phase Single Stage WSHP Open ...
Page 29: ...29 Fig 27 Constant Torque Motor Three Phase Single Stage WSHP Open ...
Page 32: ...32 Fig 30 Constant Airflow Motor Three Phase Single Stage WSHP Open ...
