IOM 1210-1 • MAGNITUDE
®
MODEL WMC CHILLERS
26 www.DaikinApplied.com
o
peraTIon
SET Screens
The Setpoint Screens on the Operator Interface Touch Screen
(OITS) are used to input the many setpoints associated
with equipment of this type. MicroTech
®
II provides a simple
method for accomplishing this. (Note that if the OITS is
unavailable, the controller can be used to change setpoints.)
Appropriate setpoints are factory set and checked by a
Daikin Applied service representative during commissioning;
however, adjustments and changes are often required to meet
job conditions. Certain settings involving pumps and tower
operation are field set.
Pressing the SET button found on almost every screen
accesses the last Setpoint Screen used or the Service Screen,
whichever of the two was used last. When in any Setpoint
Screen, pressing the SET button again will toggle to the
Service Screen, shown in
Figure 47 on page 40
. A typical
Setpoint Screen is displayed in
Figure 26
below.
Figure 26: A Typical Setpoint Screen
Figure 26
shows the WATER Setpoint Screen. The various
setpoint groups are in a column on the right side of the screen.
Each button contains a number of setpoints grouped together
by similar content. The WATER button, for example, contains
various setpoints relating to water temperature setpoints.
NOTE:
Some setpoints that do not apply to a particular unit
application may still be listed on the screen but will be
grayed out. They will be inactive and can be ignored.
The numbered Setpoint Selection buttons are pressed to
select a particular setpoint. The selected setpoint will appear
in blue on the screen and a description of it (with the range of
available settings) will appear in the upper left-hand box.
Unit Status
Compressor
Status
Setpoint
Description
Range of
Settings
Numeric
Keypad
Action
Buttons
Setpoints
Setpoint
Selection
Buttons
Initiate
Change
Button
Setpoint
Groups
