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YORK INTERNATIONAL
The maximum limits are:
Oil Pressure: 200 PSID
Suction Pressure: 200 PSIG
Discharge Pressure: 400 PSIG
System 2 Pressures
Oil pressure, suction pressure, and discharge* pres-
sure on System 2 will be displayed when this pushbutton
is pressed.
The minimum limits are:
Oil Pressure: 0 PSID
Suction Pressure: 0 PSIG
Discharge Pressure: 0 PSIG
The maximum limits are:
Oil Pressure: 200 PSID
Suction Pressure: 200
Discharge Pressure: 400 PSIG
% Motor Current
Motor currents for both System 1 and 2 are displayed
when this pushbutton is pushed.
The minimum limits on the display is “0% FLA”. The
maximum limit on the display is “115% FLA”.
Operating Hours
Start Counter
Accumulated running hours on each compressor is dis-
played. The counters for an individual system count to
a total of 99999 hours before rollover. Accumulated
starts on each compressor are also displayed. A total
of 99999 starts can be logged on a system before the
counter will rollover.
The numbers “1” and “2” on the display message indi-
cate compressor #1 and compressor #2.
These counters are zeroed at the factory or will indi-
cate only run time and number of starts logged during
factory testing at the time of shipment.
Options
The OPTIONS key provides a display of options which
have been selected by the user. These options are se-
lected by the S1 Dip Switch on the Microprocessor
Board (Fig. 13). Proper programming of the switch is
important during commissioning of the chiller. The OP-
TIONS display allows a means of verifying the Dip
Switch positions without looking at or handling the Mi-
croprocessor Board. It also eliminates visual inspec-
tion of the sometimes difficult to determine Dip Switch
position.
When the OPTIONS KEY is pressed, the following
message will first be displayed for 3 seconds:
“8” Option Messages will then follow. Each will be dis-
played for 3 seconds before the next display is auto-
matically indexed. When all messages are displayed,
the display message will automatically change to show
a chiller “STATUS” message, just as if the Status key
was pressed.
Refer to Table 3 for a list of the displays and the corre-
sponding switch positions in the order they appear. Two
possible messages may appear for each of the eight
messages depending on the Dip Switch position.
A detailed explanation of the meaning of each mes-
sage and a guide to programming the associated switch
is provided on page 30.
Fig. 13 shows the location and verification of switch
positioning of S1.
SYSTEM 2
PRESSURES
S Y S # 2 O I L =
6 3 P S I D
S P = 6 1 , D P = 1 3 3 P S I G
% MOTOR
CURRENT
I M T R 1
=
5 7 % F L A
I M T R 2
=
6 5 % F L A
OPERATING HOURS
START COUNTER
H R S 1 =
1 4 3 ,
2 =
3 8 2
S T R 1 =
2 5 ,
2 =
3 7
OPTIONS
T H E F O L L O W I N G
A R E P R O G R A M M E D
* Discharge Pressure Readout is an option. Without this option, the display will read a fixed value.
