FORM 150.24-NM27
YORK INTERNATIONAL
41
Chilled Liquid Temps
A display indicating chiller leaving and return water tem-
perature is provided when this pushbutton is pressed.
The minimum limit on the display is 8.7 DEG F. The
maximum limit on the display is 84.5 DEG F.
Ambient Temp
The outdoor ambient temperature is displayed when this
pushbutton is pressed.
The minimum limit on the display is 0 DEG F. The
maximum limit on the display is 133.8 DEG F. This
display does not apply to indoor chillers and will not dis-
play a fixed value.
System 1 Pressures
Oil pressure, suction pressure, and discharge* pressure
on System 1 will be displayed when this pushbutton is
pressed.
DISPLAY KEYS
26572A(D)
GENERAL
The DISPLAY keys allow the user to retrieve system
pressures, system motor currents, chilled liquid tem-
peratures, outdoor ambient temperature, compressor
running times, number of compressor starts, and option
information on the chiller package. This data is useful for
monitoring chiller operation, diagnosing potential future
problems, troubleshooting, and commissioning the chiller.
Displayed data will be real-time data displayed on a 40
character display consisting of 2 lines of 20 characters.
The display will update all information at a rate of about
2 seconds.
When a DISPLAY pushbutton is pressed, the corre-
sponding message will be displayed and will remain on
the display until another pushbutton is pressed.
Display Messages may show characters indicating
greater than (>) or less than (<). These characters
indicate the actual values are greater than or less than
the limit values which are being displayed.
If a message is required to be updated faster than every
2 seconds, the appropriate key for the desired display
may be pushed and held. Updating will be at .4 second
intervals.
Each of the keys and an example of the typical corre-
sponding display messages will be discussed in the text
which follows.
DISPLAY
KEYS
* Discharge Pressure Readout is an option. Without this option, the display will read a fixed value.
AMBIENT
TEMP
CHILLED
LIQUID TEMPS
SYSTEM 1
PRESSURES
O U T S I D E
A M B I E N T
A I R
=
7 5 . 9
D E G F
L W T
=
4 9 . 2
D E G F
R W T
=
5 2 . 0
D E G F
S Y S
# 1
O I L =
7 2
P S I D
S P =
6 0 , D P =
2 2 9
P S I G
Summary of Contents for YCWJ45EE0
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