50 YORK INTERNATIONAL
DUAL CIRCUIT UNITS
SELECTING A DATA DISPLAY
The two switches on the right side (“SELECT DATA DIS-
PLAY’’) select the data (temperatures, pressures, and
setpoints) that the operator wishes to view. This informa-
tion may be used for troubleshooting and data record-
FIG. 37 – SELECTING DATA DISPLAY CODES
ing. To look at a specific parameter, select its code from
the “DATA DISPLAY CODES” listing on the control panel
and proceed by dialing the number up on the “Select
Data Display” Rotary Switches. A list of the display codes
and the data displayed is shown below left.
In the event of a failure, the failure can be displayed by
selecting #18 of the “Select Data Display”. The mode of
failure will then be indicated by a number from 0-11. This
number can be translated by comparing the number to
the “FAULT CODES” listing on the control panel or page
52.
*Note: This is % FLA, not % RLA. Compressor
data plates list RLA current, which is typical cur-
rent draw under normal running conditions. FLA
is approx. 1.2 x RLA.
DATA DISPLAY CODES
If “Select Data This data will
Display” Switches be displayed.
are set at:
Return chilled water temperature °F(°C)
Leaving chilled water temperature °F(°C)
Optional
Optional
Low leaving water temperature cutout setting °F(°C)
Chilled water setpoint °F(°C)
Outdoor Ambient Temp (OAT) °F(°C)
Low Ambient Cutout °F(°C)
% Full load motor current*
Suction pressure, PSIG (kPaG x 10)
Oil pressure, PSID (kPaD x 10)
Discharge pressure, PSIG (kPaG x 10)
% Full load motor current*
Suction pressure, PSIG (kPaG x 10)
Oil pressure, PSID (kPaD x 10)
Discharge pressure, PSIG (kPaG x 10)
Suction pressure cutout setting, PSIG (kPaG x 10)
Optional
Fault code
00.
01.
02.
03.
04.
05.
06.
07.
08.
System 1
09.
10.
11.
12.
System 2
13.
14.
15.
16.
17.
18.
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LD01866
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