FORM 150.67-NM2 (209)
135
JOHNSON CONTROLS
7
The Display/Print keys allow the user to retrieve system
and unit information that is useful for monitoring
chiller operation, diagnosing potential problems,
troubleshooting, and commissioning the chiller.
System and unit information, unit options, setpoints,
and scheduling can also be printed out with the use of
a printer. Both real-time and history information are
available.
Oper Data Key
The OPER DATA key gives the user access to unit and
system operating parameters. When the OPER DATA
key is pressed, system parameters will be displayed and
remain on the display until another key is pressed. After
pressing the OPER DATA key, the various operating data
screens can be scrolled through by using the
↑
(UP) and
↓
(DOWN) arrow keys or the ENTER/ADV key located
under the “ENTRY” section.
DISPLAY/PRINT KEYS
With the “UNIT TYPE” set as a liquid chiller (no jumper
to J11-12), the following list of operating data screens
are viewable under the Oper Data key in the order that
they are displayed. The
(DOWN) arrow key scrolls
through the displays in the order they appear below:
The chiller MUST be set to be a liquid
chiller (no jumper to J11-12). DO
NOT operate the chiller if not properly
set up.
This display shows chilled leaving and return liquid
temperatures. The minimum limit on the display for
these parameters are 2.2 °F (-19 °C). The maximum
limit on the display is 140 °F (60 °C).
This display shows the ambient air temperature. The
minimum limit on the display is 0.4 °F (-17.6 °C). The
maximum limit on the display is 131.2 °F (55.1 °C).
L C H L T = 4 6 . 2 ° F
R C H L T = 5 7 . 4 ° F
A M B I E N T A I R T E M P
= 8
7 . 5
°
F
00067VIP
System 2 information will only be dis-
played for 2 system units.
Summary of Contents for YCAL0019
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