York YCAZ33BA3, Руководство пользователя, Страница: 26 / 88

YORK INTERNATIONAL
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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 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 PSIG
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
accumulated starts on each compressor are also dis-
played. A total of 99999 starts can be logged on a sys-
tem 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
selected by the S1 Dip Switch on the Microprocessor
Board (Fig. 12). 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
Microprocessor Board. It also eliminates visual inspec-
tion of the sometimes difficult to determine Dip Switch
position.
When the OPTIONS KEY is pressed, the following mes-
sage 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 1 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 28.
Fig. 12 shows the location and verification of switch
positioning of S1.
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
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
OPER. HOURS
START COUNT.
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.