Daikin WMC Installation, Operation And Maintenance Manual page 33

Cooling TOWER Fan Setpoints
Figure 31: Cooling TOWER Fan Setpoint Screen
Table 8: Tower Fan Setpoint Settings (See
Description No .
Stage #4 On (Lift) 15
Stage #3 On (Lift) 14
Stage #2 On (Lift) 13
Stage #1 On (Lift) 12
Stage #4 On (Temp) 11
Stage #3 On (Temp) 10
Stage #2 On (Temp) 9
Stage #1 On (Temp) 8
Stage Differential (Lift) 7
Stage Differential (Temp) 6
Fan Stage Down Time 5
Fan Stage Up Time 4
Cooling Tower Stages 3
Twr Bypass Valve/Fan
2
VFD
Cooling Tower Control 1
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page 32 for complete explanation.)
Default Range
65 psi 10 to 130 psi
55 psi 10 to 130 psi
45 psi 10 to 130 psi
35 psi 10 to 130 psi
85 °F 40 to 120 °F
80 °F 40 to 120 °F
75 °F 40 to 120 °F
70 °F 40 to 120 °F
6.0 psi 1.0 to 20.0 psi
3.0 °F 1.0 to 10.0 °F
5 min 1 to 60 min
2 min 1 to 60 min
2 1 to 4
None, Valve Setpoint,
None Valve Stage, VFD Stage,
Valve SP/VFD Stage
None None, Temperature, Lift
Password
M
M
M
M
M
M
M
M
M Fan staging deadband with Setpoint # 1=Lift
M Fan staging deadband with Setpoint #1=Temp
M Time delay between stage up/down event and next stage down
M Time delay between stage up/down event and next stage up
M
Valve Setpoint: Valve controls to VALVE SP2(4) & 3(5)
M Valve Stage: Valve control setpoint changes to fan stage setpoint
VFD Stage: 1st fan is VFD controlled, no valve
Valve Setpoint/VFD Stage: Both valve and VFD
None: No tower fan control Temperature: Fan and valve controlled by EWT
M
Lift: Fan and valve controlled by lift pressure
31 IOM 1210-1 • MAGNITUDE
Comments
Lift pressure for fan stage #4 on
Lift pressure for fan stage #3 on
Lift pressure for fan stage #2 on
Lift pressure for fan stage #1 on
Temperature for fan stage #4 on
Temperature for fan stage #3 on
Temperature for fan stage #2 on
Temperature for fan stage #1 on
Number of fan stages used
None: No tower valve or VFD
MODEL WMC CHILLERS
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