* [LIMIT] is shown on the LID as temperature, pressu r e, voltage, etc., set poi nt predefined or selected by
the operator as an overr ide , alert, or alarm condi ti on. [VALUE] is the actual pr e ssure, temperatur e,
voltage, etc., at which t he control tripped.
Table 8 — LID Primary and Secondary Messages and Custom Alarm/Aler t Me ss ages
with Troubleshooting Guides
D. Pre-St art Alerts : These alerts only delay start-up. W hen alert is corrected, the start-up will continu e. No
reset is necessary.
Primary
Message Secondary
Message Alarm Message/Pri mary
Cause Additional Cause/Remedy
Prestart Alert Starts Limit Exceeded STARTS EXCESSIVE Com-
pressor Starts (8 in 12 hours) Depress the RESET softkey if add i-
tional start is requi red. Reasses
start-up requirement s.
Prestart Alert High Motor Tempera-
ture MTRW [VALUE] exceeded li mit
of [LIMIT]*. Check motor tem-
perature.
Check motor cooling line for proper
operation. Check for excessive
starts within a shor t time span.
Prestart Alert
High Bearing Tempera-
ture MTRB [VALUE] exceeded li mit
of [LIMIT]*. Check thrust bear-
ing temperature.
Check oil heater fo r proper opera-
tion, check for low oil level, partially
closed oil supply valves, etc. Check
sensor accuracy.
Prestart Alert High Discharge Temp CMPD [VALUE] exceeded li mit
of [LIMIT]*. Check discharge
temperature.
Check sensor accuracy. Allow dis-
charge temperature to cool. Check
for excessive starts.
Prestart Alert Low Refrigerant Temp ERT [VALUE] exce eded limit of
[LIMIT]*. Check refrigerant tem-
perature.
Check transducer accuracy.
Check for low chilled water/brine
supply temperature.
Prestart Alert Low Oil Temperatur e OILT [VALUE] exceeded limit of
[LIMIT]*. Check oil temperature. Check oil heater power, oil heater
relay. Check oil level.
Prestart Alert
Low Line Voltage V P [VALUE] exceeded limit of
[LIMIT]*. Check voltage su pply. Check voltage suppl y. Check volt-
age transformers. C onsult power
utility if voltage is low. Calibrate
voltage reading on STATU S01
Table.
Prestart Alert
High Line Voltage V P [VALUE] exceeded l imit of
[LIMIT]*. Check voltage su pply. Check voltage suppl y. Check volt-
age transformers. C onsult power
utility if voltage is low. Calibrate
voltage reading on STATU S01
Table.
Prestart Alert High Condenser Pres-
sure CRP [VALUE] exceeded limit of
[LIMIT]*. Check condense r
water and transducer.
Check for high condens er water
temperature. Check t ransducer
accuracy.