Daikin AWV024 - Fan VFD Configuration; Fan Staging Deadbands; Circuit Level Set Points

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MODEL AWV CHILLERS
Circuit Level Set Points
The settings in this section all exist for each individual circuit.
Table 39: Set Points for Individual Circuits
Description Default Range
Mode, Enabling, Conguration
Circuit Mode Enable Disable, Enable, Test
Capacity Control Auto Auto, Manual
Manual Speed See Note 1
Condenser Control
Condenser Temp Target Max 50.0°C (122°F) 30.0°C to 55.0°C (86°F to 131°F)
Fan Staging Deadbands See Table 40 and Table 41 1 to 10°C (1.8 to 18°F)
Sensor Offsets
Evap Pressure Offset 0 kPa (0 psi) -100 to 100 kPa (-14.5 to 14.5 psi)
Cond Pressure Offset 0 kPa (0 psi) -100 to 100 kPa (-14.5 to 14.5 psi)
Oil Pressure Offset 0 kPa (0 psi) -100 to 100 kPa (-14.5 to 14.5 psi)
Economizer Pressure Offset 0 kPa (0 psi) -100 to 100 kPa (-14.5 to 14.5 psi)
Suction Temp Offset 0°C (0°F) -5.0 to 5.0°C (-9.0 to 9.0°F)
Discharge Temp Offset 0°C (0°F) -5.0 to 5.0°C (-9.0 to 9.0°F)
Economizer Temp Offset 0°C (0°F) -5.0 to 5.0°C (-9.0 to 9.0°F)
Administrative and Service Support
Clear Cycle Timers No No, Yes
Service Pumpdown Off Off, On
Compressor Run Hours 0 0 to 999999 hours
Compressor Starts 0 0 to 65535
Event Log - Event Selection Low Pressure Hold
Low Press Hold, Low Press Unload, High Press Hold, Hi Press
Unload, Low Pr Diff/Ration, Hi Motor Amps Hold, Hi Motor Amps
Unload, Hi VFD Amps Hold, Hi VFD Amps Unld, Hi VFD Temp Hold, Hi
VFD Temp Unld, Comp Start Fail, Part Load Shutdown
Event Log - Day Selection Current Current, 2nd Day, 3rd Day, 4th Day, 5th Day, 6th Day, 7th Day
NOTE: The Manual Speed value will follow the compressor speed command while Speed Control = Auto. When Speed Control
= Manual, the Manual Speed set point can be set to the desired value. Manual Speed set point should have a maximum
value equal to the Maximum Compressor Speed set point for that circuit.
Fan Staging Deadbands
Fan Stage Deadband settings will only be visible if Fan VFD Conguration is set to None or 1st Fan VFD. The condenser fan
staging deadbands have different default values based on the Fan VFD Conguration set point. When that set point is changed, a
set of default values for the fan staging deadbands is loaded as shown.
Table 40: Fan VFD Conguration = None
Set Point Default Value Loaded
Fan Stage Up Deadband 0 4°C (7.2°F)
Fan Stage Up Deadband 1 5°C (9°F)
Fan Stage Up Deadband 2 5.5°C (9.9°F)
Fan Stage Up Deadband 3 6°C (10.8°F)
Fan Stage Up Deadband 4 6.5°C (11.7°F)
Fan Stage Up Deadband 5 6.5°C (11.7°F)
Fan Stage Down Deadband 1 10°C (18°F)
Fan Stage Down Deadband 2 8°C (14.4°F)
Fan Stage Down Deadband 3 5.5°C (9.9°F)
Fan Stage Down Deadband 4 4°C (7.2°F)
Fan Stage Down Deadband 5 4°C (7.2°F)
Table 41: Fan VFD Conguration = 1st Fan VFD
Set Point Default Value Loaded
Fan Stage Up Deadband 0 2.5°C (4.5°F)
Fan Stage Up Deadband 1 2.5°C (4.5°F)
Fan Stage Up Deadband 2 4°C (7.2°F)
Fan Stage Up Deadband 3 5°C (9°F)
Fan Stage Up Deadband 4 4°C (7.2°F)
Fan Stage Up Deadband 5 4°C (7.2°F)
Fan Stage Down Deadband 1 4°C (7.2°F)
Fan Stage Down Deadband 2 3.5°C (6.3°F)
Fan Stage Down Deadband 3 3°C (5.4°F)
Fan Stage Down Deadband 4 2.5°C (4.5°F)
Fan Stage Down Deadband 5 2.5°C (4.5°F)