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JOHNSON CONTROLS
88
FORM 150.63-NM6 (1020)
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 operating
data screens can be scrolled through by using the UP
and DOWN arrow keys located under the “ENTRY”
section.
System 2 information will only be dis-
played for 2 system units.
With the “UNIT TYPE” set as a condensing unit (via
jumper between J4-11 and J4-6 on the microboard), the
DISPLAY/PRINT KEYS
following list of operating data screens are viewable
under the Oper Data key in the order that they are dis-
played. The
↓
arrow key scrolls through the displays in
the order they appear below:
The chiller MUST be set to be a
condensing unit via jumper between
J4-11 and J4-6 on the microboard.
DO NOT operate the equipment if not
properly set up.
This display shows the discharge air temperature leaving
the evaporator. The display will only be shown when the
Control Mode is programmed for Discharge Air (under
the Options key). The minimum limit on the display
for these parameters are 9.2°F (-12.7°C). The maximum
limit on the display is 85.4°F (29.7°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).
A M B I E N T A I R T E M P
= 8 7 . 5 ° F
00067VIP
Unit Controls
D I S C H A R G E A I R T E M P
= 5 7 . 4 ° F
Summary of Contents for YCUL0045
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