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T O T A L
N U M B E R
C O M P R E S S O R S
The TOTAL NUMBER OF COMPRESSORS shows the
amount of compressors in the chiller, and determines
the stages of cooling available. Notice in Table 14 that
the selection available will vary depending on whether
the chiller is a single or dual refrigerant circuit.
TABLE 14 – PROGRAM KEY LIMITS AND DEFAULTS
PROGRAM VALUE
Discharge Pressure Cutout
Suction Pressure Cutout
Low Ambient Temp. Cutout
Anti-Recycle Timer
Fan Control On-Pressure
Fan Differential Off-Pressure
Total Number of Compressors
YORK INTERNATIONAL
O F
=
6
MODE
LOW LIMIT
—
200 PSIG
—
13.8 Bars
—
44.0 PSIG
—
3.03 Bars
Standard Ambient
Low Ambient
-17.8 °C
—
300 sec.
—
225 PSIG
—
15.5 Bars
—
50 PSIG
—
3.45 Bars
Single System
Two Systems
This must be programmed correctly to
assure proper unit operation.
HIGH LIMIT
399 PSIG
27.5 Bars
70.0 PSIG
4.83 Bars
25.0 °F
60.0 °F
-3.9 °C
15.6 °C
0 °F
60.0 °F
15.6 °C
600 sec.
300 PSIG
20.7 Bars
150 PSIG
10.32 Bars
2
3
4
6
FORM 150.63-NM2
DEFAULT
395 PSIG
27.2 Bars
44.0 PSIG
3.03 Bars
25.0 °F
-3.9 °C
25.0 °F
-3.9 °C
600 sec.
230 PSIG
15.9 Bars
3
80 PSIG
5.52 Bars
3
6
115
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