Daikin Magnitude, Инструкция по установке, эксплуатации и обслуживанию

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www.DaikinApplied.com 39 IOM 1210-7 • MAGNITUDE
®
MODEL WMC CHILLERS
o
peraTIon
Bypass VALVE Setpoints
Figure 34: Bypass VALVE Setpoint Screen
Table 13: Bypass VALVE Setpoint Settings
Description Default Range Password Comments
Temp - Max Start Position [SP11] 90 °F 0 to 100 °F T Condenser EWT at which valve should be open to tower. Valve position is set to SP10
EXV Valve Start Position Closed Open-Closed T Select valve position to either open or closed.
Release at LR 1.00 1-5 T Lift Ratio at which the EXV start pos is released for normal control
Unload Target LR 2.2 1-5 T
Target to which the chiller will unload to stage on another comp.
It could be a Lift Ratio or a Lift pressure.
Stage Lift Type Ratio
Ratio-
Pressure
T Select either Ratio or Pressure as lift type
Stage EXV Control Auto 0-100% T Hold at selected percentage
EXV Duration 0 sec 0-60 sec T Time the EXV position is held during staging event.
Start Ready + Next-On 1 0-1 T
Configures the Ready-To-Start indicator, 1 = Chiller as a compressor ready to start
next. 0 = Chiller as a compressor available to start (it may not be next compressor
starting).
EXV Gain 78 Configurable T
Gain selection based on chiller size and valve type. Alternate Mode – Gain based on
chiller function (Cool/Ice/Heat).
EXV Offset 700 Configurable T
Offset selection based on chiller size and valve type. Alternate Mode – Offset based on
chiller function.
SH Dropout Temp 10°F 10-50 T
Selected temperature that the EXV transitions from Pull-down control, to running on
condition.
NOTE: Table 13 relies on Setpoints 1 and 2 in Table 14 on page 40 . The setpoints listed in Table 13 should only be changed
by a Daikin Applied technician. Contact a Daikin Applied service representative for more information.