McQuay WSC Operating Manual page 47

VIEW UNIT WATER ° ° ° ° F(3)
Water Flow Rates
Evap = XXXX GPM
Cond = XXXX GPM
View Unit Refrigerant
VIEW UNIT REFRG (1)
Sat Evap XXX.X
Sat Cond XXX.X
VIEW UNIT REFRG (2)
Suct Line
Liquid Line= XXX.X° ° ° ° F
Lift Press =XXX.Xpsi
View Unit Tower
To w er Co nt ro l = Temp/No ne
VIEW UNIT TOWER (1)
Stages ON = 2 of 4
Setpoint = XXX ° ° ° ° F
The first Stages ON value is the number of fan stages ON. The second number is the Tower Stages
set point, i.e. the number of stages set, selectable from 0 to 4 (0 if Tower Control = None). The
bottom line is the setpoint, °F or psi will show on the screen depending on whether TEMP (°F) or
LIFT (psi) is selected in the Cooling Tower Control setpoint.
VIEW UNIT TOWER (2)
Bypass Valve = XXX%
VFD Speed
The Bypass Valve value is "None" (in place of XXX%) if the Valve/VFD Control set point = None
or VFD Stage. The VFD Speed value is "None" if the Valve/VFD Control set point = None, Valve
Setpoint, or Valve Stage.
View Compressor
NOTE: In the following VIEW COMP screens, the #N field indicates which compressor (#1, and
#2 for dual compressor units.) is being viewed.
VIEW COMP#N (1)
State
% RLA
Evap LWT = ° ° ° ° F
State settings can be OFF, START, PRELUBE, HOLD, LOAD, UNLOAD, SHUTDOWN,
POSTLUBE, and ALARM as determined from the Comp State variable, the Load and Unload
outputs, and the presence of a compressor shutdown alarm. #N is for compressor #1 or #2 on dual
compressor units and does not appear on single compressor units.
OM Centrif Micro ΙΙ-5
psi ° ° ° ° F
XX.X
XX.X
= XXX.X° ° ° ° F
VIEW UNIT TOWER (1)
Stages ON = 2 of 4
Setpoint = XXXX psi
= XXX%
= RUN
= XXX %
To w er Co nt ro l = Lif t
47