Display/Print Keys - York YCAL0019 Installation, Operation And Maintenance Manual

FORM 150.67-NM1
ISSUE DATE: 4/28/2017
The Display/Print keys allow the user to retrieve sys-
tem and unit information that is useful for monitoring
chiller operation, diagnosing potential problems, trou-
bleshooting, 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 op-
erating data screens can be scrolled through by using
the ↑ (UP) and ↓ (DOWN) arrow keys or the ENTER/
ADV key located under the "ENTRY" section.
System 2 information will only be
displayed for 2 system units.
JOHNSON CONTROLS

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:
L C H L T
R C H L T
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).
SECTION 7 – UNIT CONTROLS
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.
= 4 6 . 2 ° F
= 5 7 . 4 ° F
A M B I E N T A I R
= 8 7 . 5 ° F
00067VIP
7
°
T E M P
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