5-18
764332-098
20. Display shows:
COOLDOWN TANK FULL
... and printer prints:
ALARM HH:MM:SS
COOLDOWN TANK FULL
1. Press
ACK
touch pad to acknowledge alarm.
2. Improper temperature setpoint – check for temperature set-
point in Service mode.
3. Cooldown tank high water level malfunction – check opera-
tion of float. Clean or replace as necessary.
4. Defective cooldown tank cold water fill valve – check and
replace as necessary.
5. Defective sump drain ball valve(s) (always open) – repair or
replace valve(s) as necessary.
• Alarm is triggered by:
During sump draining, cooldown tank high level switch Slot
1 in 11 and cooldown tank low level switch Slot 1 in 12.
During tank cooldown phase, cooldown tank high level
switch Slot 1 in 11 and cooldown tank low level switch Slot 1
in 12.
21. Display shows:
COOLDOWN TANK
FLOAT FAILURE
... and printer prints:
ALARM HH:MM:SS
COOLDOWN TANK
FLOAT FAILURE
Cooldown tank high or low water level ball float malfunction
1. Press
ACK
touch pad to acknowledge alarm.
2. Verify operation of float. Clean as necessary.
3. Press RESUME CYCLE touch pad to resume cycle opera-
tion.
• Alarm is triggered by:
During cooling phase and sump draining phase cooldown
tank high level switch A Slot 1 in 11 and cooldown tank low
level switch Slot 1 in 12.
22. Display shows:
COOLDOWN
RTD DEFECTIVE
... and printer prints:
ALARM HH:MM:SS
COOLDOWN
RTD DEFECTIVE
1. Press
ACK
touch pad to acknowledge alarm.
2. Cooldown tank RTD malfunction – check and calibrate or
replace as necessary.
3. Poor electrical connection between cooldown tank RTD sen-
sor and control – inspect connections and tighten if neces-
sary.
• Alarm is triggered by:
Cooldown tank is lower than 35ºF (9.5ºC) signal on Slot 2 in 3.
Table 5-2. Fault Chart
PROBLEM POSSIBLE CAUSE AND/CORRECTION
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