Table 17 - Program Key Limits And Default - York YLAA0041 Manual

FORM 150.72-ICOM6
ISSUE DATE: 08/03/2022

TABLE 17 - PROGRAM KEY LIMITS AND DEFAULT

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 DIFFERENTIAL OFF PRESSURE
TOTAL NUMBER OF COMPRESSORS
NUMBER OF FANS PER SYSTEM
UNIT/SYSTEM TRIP VOLTS
REMOTE UNIT ID
SYSTEM 1 AND SYSTEM 2
SUPERHEAT SETPOINTS
DUTY/STANDBY PUMP CHANGE OVER
ANTI-VACUUM SUCTION PRESSURE
CUTOUT
ANTI-VACUUM DELAY TIME
VSD FAN LOW PRESSURE LIMIT
VSD FAN HIGH PRESSURE LIMIT
VSD FAN LOW AMBIENT
DISCHARGE PRESSURE SETPOINT
VSD FAN LOW AMBIENT DISCHARGE
PRESSURE CONTROL RANGE
* The minimum discharge pressure allowed is 235 psig. The Fan Differential Off Pressure High Limit will be lowered (reduced) to prevent go-
ing below 235 psig based on where the fan control On Pressure is programmed.
JOHNSON CONTROLS
MODE
—
WATER COOLING
GLYCOL COOLING
STANDARD AMBIENT
LOW AMBIENT
VSD FAN
ALL OTHER CONFIGURATIONS
WATER COOLING
GLYCOL COOLING
LOW TEMPERATURE
GLYCOL COOLING
—
—
—
SINGLE SYSTEM
DUAL SYSTEM
—
CURRENT FEEDBACK
—
R-410a
R-410a
R-410a
R-410a
R-410a
R-410a
R-410a
R-410a
SECTION 7 – UNIT CONTROLS
LOW LIMIT HIGH LIMIT
325 psig 575 psig
22.40 barg 39.60 barg
80 psig 120 psig
5.52 barg 8.27 barg
33 psig 120 psig
2.28 barg 8.27 barg
25.0°F 60.0°F
-3.9°C 15.6°C
0.0°F 60.0°F
-17.8°C 15.6°C
-10.0°F 60.0°F
-23.3°C 15.6°C
0.0°F 60.0°F
-17.8°C 15.6°C
— —
8.0°F 36.0°F
-13.3°C 2.2°C
-1.0°F 36.0°F
-18.3°C 2.2°C
300 s 600 s
360 psig 485 psig
24.80 barg 33.40 barg
80 psid 160 psid*
5.51 bard 11.03 bard*
2 3
4 6
2 4
0.5 V 4.5 V
0 7
5.0°F 18.0°F
2.8°C 10.0°C
1 30
3 psig 20 psig
0.21 barg 1.38 barg
3 s 30 s
247 psig 345 psig
17.03 barg 23.78 barg
350 psig 450 psig
24.13 barg 31.03 barg
360 psig 420 psig
24.82 barg 28.96 barg
60 psig 120 psig
4.14 barg 8.27 barg
DEFAULT
570 psig
39.30 barg
80 psig
5.52 barg
44 psig
3.03 barg
25.0°F
-3.9°C
25.0°F
-3.9°C
25.0°F
-3.9°C
25.0°F
-3.9°C
36°F
2.2°C
36.0°F
2.2°C
36.0°F
2.2°C
600 s
385 psig
26.50 barg
125 psid
8.62 bard
7
3
6
3
2.5 V
0
9.0°F
5.0°C
30
10%
programmed
suction cutout
6 s
247 psig
17.03 barg
450 psig
31.03 barg
390 psig
26.89 barg
90 psig
6.21 barg
147