York MILLENNIUM YCUL0045SC, Установка, эксплуатация и обслуживание

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YORK INTERNATIONAL
FORM 150.63-NM2
103
3
DISPLAY/PRINT KEYS
00067VIP
The Display/Print keys allow the user to retrieve system
and unit information that is useful for monitoring unit op-
eration, 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 located under the “ENTRY” section.
With the “UNIT TYPE” programmed as a condensing unit
chiller (under the Options key), the following is a list of
operating data screens in the order that they are dis-
played:
This display shows the discharge air temperature leav-
ing the evaporator. This display will only be shown when
the Control Mode is programmed for Discharge Air (un-
der 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).
This display shows suction and discharge pressures on
the respective system. If the
optional discharge trans-
ducer is not installed, the discharge pressure would dis-
play 0 PSIG (0 BARG). The discharge pressure trans-
ducer is optional on all models.
Some models come factory wired with a low pressure
switch in place of the suction transducer. In this case,
the suction pressure would only be displayed as the
maximum suction pressure reading of >200 PSIG (13.79
BARG) when closed, or < 0 PSIG (0 BARG) when open.
The suction transducer is standard on YCUL0211 -
YCUL0275 only.
The minimum limits for the display are:
• Suction Pressure: 0 PSIG (0 BARG)
• Discharge Pressure: 0 PSIG (0 BARG)
D I S C H A R G E A I R T E M P
= 5 7 . 4 ° F
A M B I E N T A I R T E M P
= 8 7 . 5 ° F
S Y S X S P = 7 2 . 1 P S I G
D P = 2 2 7 . 0 P S I G