IOM 1210-7 • MAGNITUDE
®
MODEL WMC CHILLERS 50 www.DaikinApplied.com
operaTIon
Figure 53: Service Screen
Interface Screen
The Service Screen is accessed by pressing the Interface
button from any SET screen. While containing information and
activity buttons for the service technician, it also has valuable
information for the operator.
The upper left corner of the Service Screen contains
compressor information such as operating hours and number
of starts for each compressor. “Spare Capacity” is used to set
the compressor stopping increments.
Pressing the Date/Time window on the left side of the Service
Screen opens the Date and Time Properties Window, shown
in Figure 53. Change the date and time on the “Date & Time”
tab. To change the date, use the drop down menu to choose
the correct month, use the up and down arrows to scroll to the
correct year, and then select the correct day on the calendar
shown. To change the time, highlight the time in the text eld
below the analog clock and use the up and down arrows to
scroll to the correct time. Use the drop down menu in the “Time
Zone” tab to change the time zone to the correct area.
NOTE: It is likely that the chiller will contain the factory
settings for date, time, and time zone; therefore, it is
important to verify or change these settings when the
chiller is rst used on the job-site. Failure to do so will
result in incorrectly labeled History les.
The Display Units button on the Operator Screen allows
selection of Inch-Pounds or Metric units of measure on the
HMI.
The OPERATING MANUAL button displays the manual in
Adobe.
SELECT LANGUAGE is accessed on the Operator Screen
(Figure 54) and allows toggling between the available
languages. The language can be set separately for display
or history, which is used for alarm and trend les. In order to
change the language displayed on the HMI, scroll to the correct
language using the left and right arrow buttons and then press
the DISPLAY button. In order to change the language stored in
the history les, scroll to the correct language and then press
the HISTORY button. Note that the DISPLAY and HISTORY
buttons must be pressed in order to make the selected
language active in these respective areas.
Also on the Operator screen, the PASSWORD SET button is
used to access the Keyboard (see Figure 30 on page 34) to
enter a password.
The version numbers shown under the pLAN Nodes matrix
are the controllers’ software identication. The number in the
upper right corner is the HMI software identication number.
These numbers may be required by Daikin Applied to answer
questions about unit operation or to assist in possible future
upgrades of software.
HISTORY Screens
The HMI is capable of storing two types of history: trend
history and alarm history. These two types are described in the
following sections.
Trend History Screen
The Trend History Screen (Figure 55) is accessed by clicking
the TREND button at the bottom of any screen that contains
this button