FORM 150.60-NM3
25
YORK INTERNATIONAL
DISPLAY KEYS
26572A(D)
DISPLAY
KEYS
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 inter-
vals.
Each of the keys and an example of the typical corre-
sponding display messages will be discussed in the text
which follows.
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.
System 1 Pressures
Oil pressure, suction pressure, and discharge* pressure
on System 1 will be displayed when this pushbutton is
pressed.
CHILLED
LIQUID TEMPS
AMBIENT
TEMP
L W T
=
4 9 . 2
D E G F
R W T
=
5 2 . 0
D E G F
O U T S I D E
A M B I E N T
A I R
=
7 5 . 9
D E G F
SYSTEM 1
PRESSURES
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
* Discharge Pressure Readout is an option. Without this option, the display will read a fixed value.
Summary of Contents for YCAJ44HE8
Page 16: ...16 YORK INTERNATIONAL WIRING DIAGRAMS LD02165 FIG 5 ELEMENTARY DIAGRAM...
Page 17: ...FORM 150 60 NM3 17 YORK INTERNATIONAL FIG 5 ELEMENTARY DIAGRAM Cont d LD02166...
Page 20: ...20 YORK INTERNATIONAL CONNECTION DIAGRAM ELECTRICAL BOX FIG 7 CONNECTION DIAGRAM LD02171...
Page 21: ...FORM 150 60 NM3 21 YORK INTERNATIONAL FIG 7 CONNECTION DIAGRAM Cont d LD02172...