Carrier PC211 Start-Up, Operation And Maintenance Instructions Manual page 295

Table 10K — Machine Protect Limit Faults (Continued)
WARNING
Excessive numbers of the same fault can lead to severe machine damage.
Seek service expertise.
Primary Secondary
Message Message
Power Loss
Protective
Limit
Low Line Voltage
Protective
Limit
High Line Voltage
Protective
Limit
Low Chilled Water
Protective
Flow
Limit
Low Condenser
Protective
Water Flow
Limit
High Condenser
Pressure
Protective
Limit
High Condenser
Protective
Pressure
Limit
1CR Aux Contact
Protective
Fault
Limit
Run Aux Contact
Protective
Fault
Limit
!
WARNING
Alarm Message/
Primary Cause
V P Power Loss: Check
voltage supply.
V P [VALUE] exceeded
limit of [LIMIT]*. Check
voltage supply.
V P [VALUE] exceeded
limit of [LIMIT]*. Check
voltage supply.
EVFL Flow Fault: Check
evap pump/flow switch.
CDFL Flow Fault: Check
cond pump/flow switch.
High Cond Pressure
[OPEN]: Check switch,
2C aux., and water temp/
flow.
High Cond Pressure
[VALUE]: Check switch,
water flow, and trans-
ducer.
CR AUX Starter Contact
Fault: Check 1CR/1M aux
contacts.
RUN AUX Starter Con-
tact Fault: Check 1CR/1M
aux contacts.
Additional Cause/Remedy
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.
Perform pumps Control Test and verify
proper switch operation. Check all water
valves and pump operation.
Check the high-pressure switch. Check
for proper condenser pressures and con-
denser waterflow. Check for fouled tubes.
Check the 2C aux. contact and the oil
pressure switch in the power panel. This
alarm is not caused by the transducer.
Check water flow in condenser. Check for
fouled tubes. Transducer should be
checked for accuracy. This alarm is not
caused by the high pressure switch.
1CR auxiliary contact opened while
machine was running. Check starter for
proper operation.
Run auxiliary contact opened while
machine was running. Check starter for
proper operation.