Daikin WMC Instruction Manual Page 46
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IOM 1210-1 • MAGNITUDE
®
MODEL WMC CHILLERS 46 www.DaikinApplied.com
Problem Alarms
Problems do not cause compressor shutdown but do limit operation of the chiller.
Table 14: Unit Problem Alarms
Description OITS Alarm Message Alarm Reset
Condenser Water Freeze Protect Comp 1 COND PUMP ON - Condenser Pressure Low (Freeze) Auto-clears
Condenser Water Freeze Protect Comp 2 COND PUMP ON - Condenser Pressure Low (Freeze) Auto-clears
Low Evaporator Pressure - Inhibit Loading Circuit 1 NO LOAD - Evaporator Pressure Low Auto-clears
Low Evaporator Pressure - Inhibit Loading Circuit 2 NO LOAD - Evaporator Pressure Low Auto-clears
Low Evaporator Pressure - Unload Circuit 1 UNLOAD - Evaporator Pressure Low Auto-clears
Low Evaporator Pressure - Unload Circuit 2 UNLOAD - Evaporator Pressure Low Auto-clears
Ground Fault Protection 1 COMPR STOP - Ground Fault Locked off (requires local reset)
Ground Fault Protection 2 COMPR STOP - Ground Fault Locked off (requires local reset)
Warning Alarms
Warnings only generate a warning message to the operator. Chiller operation is not affected.
Table 15: Unit Warning Alarms
Description OITS Alarm Message Alarm Reset
Entering Condenser Water Temperature Sensor Fault NO ACTION - Condenser EWT Out of Range Auto-clears
Entering Evaporator Water Temperature Sensor Fault NO ACTION - Evaporator EWT Out of Range Auto-clears
Liquid Line Refrigerant Temperature Sensor Fault NO ACTION - Liquid Line Temp Out of Range Auto-clears
Leaving Condenser Water Temperature Sensor Fault NO ACTION - Condenser LWT Out of Range Auto-clears
Condenser Pump #1 Fault No Alert shown on OITS panel No Alarm
Condenser Pump #2 Fault No Alert shown on OITS panel No Alarm
High Discharge Temperature Comp 1 No Alert shown on OITS panel No Alarm
High Discharge Temperature Comp 2 No Alert shown on OITS panel No Alarm
Entering Evap Temperature Sensor Fault (EWT reset active) No Alert shown on OITS panel No Alarm
Chiller Running with Limited Capacity No Alert shown on OITS panel No Alarm
Load Balance Valve Fault 1 COMPR WARNING - Flooded Compressor Operator Cleared Only
Load Balance Valve Fault 2 COMPR WARNING - Flooded Compressor Operator Cleared Only
Table 16: Compressor Warning Alarms
Description OITS Alarm Message Alarm Reset
Repower After Power Loss 1 COMPR STOP - Line Voltage Low Auto-clears
Repower After Power Loss 2 COMPR STOP - Line Voltage Low Auto-clears
- Model WMC, C Vintage 1
- HFC-134a Refrigerant 1
- 50/60 Hz 1
- Table of ConTenTs 2
- InTroduCTIon 3
- General Description 4
- W M C 290 D CS 4
- The Control System 5
- Receiving and Handling 6
- Nameplates 6
- Location 6
- Clearance 6
- Mounting 8
- Water Piping 8
- Vessel Drains at Startup 8
- Condenser Water 9
- Temperature Control 9
- Relief Valves 10
- Field Insulation 11
- Field Power Wiring 11
- 12
- 12
- 13
- 14
- InsTallaTIon 16
- Communication Setup for 18
- Multiple Chillers 18
- Long Term Storage 18
- Pre-Start Checklist 19
- Operator Responsibilities 20
- Operator Schools 20
- Sequence of Unit Operation 20
- Unit Enabling/Disabling 20
- Operator Interface Touch 21
- Screen (OITS) 21
- VIEW Screens 22
- Detail View Screen 23
- View Menu Screen 25
- SET Screens 26
- Explanation of Setpoints 27
- TIMERS Setpoints 28
- ALARMS Setpoints 29
- Cooling TOWER Fan Setpoints 31
- Fan Stages 32
- VFD Speed (%) 33
- CAUTION 35
- MOTOR Setpoint Screen 36
- Compressor Capacity Control 37
- Capacity Overrides 37
- MODES Setpoints 38
- WATER Setpoints 39
- Service Screen 40
- HISTORY Screens 41
- Alarm History Screen 42
- Active Alarms Screen 43
- Possible Alarms and Events 44
- MODEL WMC CHILLERS 45
- Problem Alarms 46
- Warning Alarms 46
- The Controller 48
- Menu Structure (Scrolled) 49
- VIEW UNIT VIEW COMPRESSOR 50
- EVAPORATOR 50
- Setting Passwords 52
- Conguring the Control Source 53
- Clearing Alarms 53
- Controller Inputs and Outputs 54
- Controller Setpoints 55
- IOM 1210-1 • MAGNITUDE 56
- Building Automation 58
- Systems (BAS) 58
- Use with On-Site Generators 58
- Service Programs 59
- Chiller Maintenance 59
- Seasonal Shutdown 59
- Seasonal Startup 59
- Maintenance Schedule 60
- Denitions 61
- Temperature / Pressure Chart 64
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