Daikin WSC Installation, Operation And Maintenance Manual page 60

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Installation and maintenance manual (12 pages)

Table Of Contents

Table of Contents

Table 22: Critical Alarms

Screen Text

Evaporator Pressure Low

Discharge Pressure High

Vanes Not Closed

Oil Pressure Low

Oil Feed Temperature Low

Oil Feed Temperature High

RLA Low (motor open)

Discharge Temperature High

High Pressure Switch

Motor Temperature High

Surge Detected - Running

Surge Condition

No Starter Transition

Starter Fault

Prelube Cycle Failed

Evaporator Water Flow Loss

Condenser Water Flow Loss

Sensor Fault: Evap LWT

Sensor Fault: Evap Sat Press

Sensor Fault: Cond Sat Press

Sensor Fault: Suction Temp

Sensor Fault: Discharge Temp

Sensor Fault: Oil Feed Temp

Sensor Fault: Oil Sump Temp

Sensor Fault: Oil Feed Pressure Rapid Stop/No Start

Sensor Fault: Oil Vent Pressure

External Input Comp Fault

Starter Current Overload

Starter Current Imbalance

Starter Phase Loss

Starter Phase Order

Starter Over Volt

Starter Under Volt

Ground Fault

Sensor Fault: Leaving Heat

Recovery

External Fault Digital Input

Motor Temperature Trip - NTC

Motor Temperature Trip - DI

IGV Actuator Fault

IGV Position Tracking Error

IOM 1274-3 • CENTRIFUGAL WATER CHILLERS

Action Taken

Low or No Evaporator Water Flow. Low refrigerant level in evaporator. Incorrect setpoint value for

Rapid Stop

leaving water temperature.

Rapid Stop

Low or no condenser water Flow

Rapid Stop

Low or no condenser water Flow

Rapid Stop

Rotor and/or stator cooling circuit fault

Rapid Stop

Motor stator cooling solenoid not open, rotor cooling stepper motor not functioning correctly,

motor rotor superheat or gain setpoints incorrect (contact factory)

Rapid Stop

Surge Temperature = the suction temperature minus the leaving chilled water temperature.

Rapid Stop/No Start

Surge condition detected while starting

Rapid Stop/No Start

Rapid Stop

Rapid Stop/No Start

Oil pressure too low to start compressor.

Loss of evaporator flow, evaporator pump off, evaporator head gasket leaking or missing, sensor

Rapid Stop

wiring fault, evaporator flow sensor failure

Loss of condenser flow, condenser pump off, condenser head gasket leaking or missing, sensor

Rapid Stop

wiring fault, condenser flow sensor failure

Rapid Stop

Sensor shorted or open. Chilled water flow switch may be open

Rapid Stop/No Start