Protective
Limit
Power Loss V P Power Loss: Check
voltage supply.
Check 24-vdc input sensor on the SMM;
adjust potentiometer if necessary. Check
transformers to SMM. Check power to
PSIO module. Check distribution bus.
Consult power company .
Protective
Limit
Low Line Voltage V P [VALUE] exceeded
limit of [LIMIT]*. Check
voltage supply.
Protective
Limit
High Line Voltage V P [VALUE] exceede d
limit of [LIMIT]*. Check
voltage supply.
Protective
Limit
Low Chilled Water
Flow EVFL Flow Fault: Check
evap pump/flow switch. Perform pumps Contro l Test and verify
proper switch operati on. Check all water
valves and pump oper ation.
Protective
Limit
Low Condenser
Water Flow CDFL Flow Fault: Check
cond pump/flow switch.
Protective
Limit
High Condenser
Pressure High Cond Pressure
[OPEN]: Check switch,
2C aux., and water temp/
flow.
Check the high-pressure switch. Check
for proper condenser p ressures and con-
denser waterflow. Check fo r fouled tubes.
Check the 2C aux. cont act and the oil
pressure switch in th e power panel. This
alarm is not caused by the transducer.
Protective
Limit
High Condenser
Pressure High Cond Pressure
[VALUE]: Check switch,
water flow, and trans-
ducer.
Check water flow in conden ser. Check for
fouled tubes. Transduc er should be
checked for accuracy . This alarm is not
caused by the high pre ssure switch.
Protective
Limit
1CR Aux Contact
Fault CR AUX Starter Co ntact
Fault: Check 1CR/1M aux
contacts.
1CR auxiliary contact ope ned while
machine was running. C heck starter for
proper operation.
Protective
Limit
Run Aux Contact
Fault RUN AUX Starter Con-
tact Fault: Check 1CR/1M
aux contacts.
Run auxiliary contact opened while
machine was running. C heck starter for
proper operation.
Table 10K — Machine Protect Limit Faults (Continued)
Primary
Message Secondary
Message Alarm Messag e/
Primary Cause Additional Cause/R eme dy
Excessive numbers of the sa me fault can lead to seve re machine damage .
Seek service exp ertise.
WARNING !WARNING