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Another anti-recycle timer is started each time the sys-
tems number one compressor cycles off. This anti-re-
cycle time is fixed at 120 seconds and starts to count-
down when the systems number one compressor cycles
off.
The anti-recycle message is displayed when the sys-
tem is unable to start due to either of the anti-recycle
timers being active (counting down). The actual time dis-
played will be the longer of the two timers, start-to-start
or stop-to-start.
F A N
C O N T R O L
P R E S S U R E = X X X P S I G
The Fan Control On Pressure is the programmed pres-
sure value that is used to stage the condenser fans on,
in relation to discharge pressure. Refer to Condenser
Fan Control in the UNIT OPERATION section and Tables
36, 37, and 38, 39.
TABLE 26 – PROGRAM KEY LIMITS AND DEFAULTS
PROGRAM VALUE
DISCHARGE PRESSURE CUTOUT
SUCTION PRESSURE CUTOUT
LOW AMBIENT TEMP.CUTOUT
LEAVING CHILLED LIQUID
TEMP. CUTOUT
ANTI-RECYCLE TIMER
FAN CONTROL ON-PRESSURE
FAN DIFFERENCIAL OFF-PRESSURE
TOTAL NUMBER OF COMPRESSORS
YORK INTERNATIONAL
FA N
The Fan Differential Off Pressure is the programmed
differencial pressure value that is used to stage the con-
denser fans off, in relation to discharge pressure. Refer
to Condenser Fan Control in the UNIT OPERATION
section and Tables 36, 37 and 38, 39.
O N
The TOTAL NUMBER OF COMPRESSORS are the
amount of compressors in the chiller, and determines
the stages of cooling available. Notice in Table 29 her
the chiller is a single or dual refrigerant circuit.
MODEL
LOW LIMIT
—
13.8 BARS
WATER COOLING
3.03 BARS
GLYCOL COOLING
1.38 BARS
STANDARD AMBIENT
LOW AMBIENT
WATER COOLING
GLYCOL COOLING
—
—
15.5 BARS
—
3.45 BARS
SINGLE SYSTEM
TWO SYSTEMS
D I F F E R E N T I A L
P R E S S U R E = X X X P S I G
T O T A L
N U M B E R
C O M P R E S S O R S
This must be programmed correctly to
assure proper chiller operation.
HIGH LIMIT
200 PSIG
399 PSIG
27.5 BARS
44.0 PSIG
70.0 PSIG
4.83 BARS
20.0 PSIG
70.0 PSIG
4.83 BARS
25.0°F
60.0°F
-3.9°C
15.6°C
0°F
60.0°F
-17.8°C
15.6°C
—
—
8.0°F
36.0°F
-13.3°C
2.2°C
300 SEC.
600 SEC.
225 PSIG
300 PSIG
20.7 BARS
50 PSIG
150 PSIG
10.3 BARS
2
3
4
6
FORM 150.62-NM2
O F F
O F
=
6
2
DEFAULT
395 PSIG
27.2 BARS
44.0 PSIG
3.03 BARS
44.0 PSIG
3.03 BAR
25.0°F
-3.9°C
25.0°F
-3.9°C
36°F
2.2°C
36.0°F
2.2°C
600 SEC.
230 PSIG
15.9 BARS
80 PSIG
5.52 BARS
3
6
73
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