McQuay WSC Operating Manual page 52

Stage Down @
Stage Up @
Valve Control Range (Min)
Valve Control Range(Max)
Valve Type
Minimum Start Position
Minimum Position @
Maximum Start Position
Maximum Position @
Error Gain
Slope Gain
Set Unit Setpoints
SET UNIT SPs (1)
Enable=OFF
Mode
Source = Local
Enable settings can be OFF and ON as determined from the Enable set point. Unit Mode settings
can be COOL, COOL w/Glycol, ICE, HEAT, or TEST as determined from the Unit Mode setpoint
(TEST mode shall not be selectable from the 4x20 display/keypad although it may be displayed if
already set). WCC units have the WCC enable set to ON at the factory.
Source settings can be LOCAL, SWITCHES, or NETWORK as determined from the Mode Source
setpoint.
SET UNIT SPs (2)
Available Modes
= COOL/HEAT
Select with unit off
Available Modes settings can be COOL, COOL/Glycol, COOL ICE w/Glycol., COOL/HEAT,
HEAT or TEST, as determined from the Available Modes setpoint. This setpoint requires the unit
to be turned off before changing.
SET UNIT SPs (3)
Cool LWT =
Ice
Heat LWT = XXX.X° ° ° ° F
The Cool, Ice, and Heat setpoints are only displayed if the corresponding mode is available as
specified by the Available Modes setpoint.
SET UNIT SPs (4)
Leaving Water Temp.
StartDelta= XX.X° ° ° ° F
StopDelta =
StartDelta is the number of degrees above setpoint (below setpoint for Templifiers) for unit to
start. StopDelta is the number of degrees below setpoint (above setpoint for Templifiers) for unit to
stop.
52
Description Default
20%
80%
10%
90%
NC To Tower
60 °F
100%
90 °F
WCC=OFF
= COOL
XX.X° ° ° ° F
LWT = XX.X° ° ° ° F
X.X° ° ° ° F
0 to 100%
0 to 100%
0 to 100%
0 to 100%
0% 0 to 100%
0 to 100 °F
0 to 100%
0 to 100 °F
25
25
Range
NC, NO
10 to 99
10 to 99
PW
M
M
M
M
M
M
M
M
M
M
M
OM Centrif Micro ΙΙ-5