York YCAL Series - Table 16 - Program Key Limits and Defaults

JOHNSON CONTROLS
122
FORM 150.66-NM3
ISSUE DATE: 09/25/2020
SECTION 7 - UNIT CONTROLS
* The minimum discharge pressure allowed is 160 psig. The fan di󰀨erential O󰀨 Pressure will be lowered to prevent going below
160 psig based on where the fan control On Pressure is programmed.
TABLE 16 – PROGRAM KEY LIMITS AND DEFAULTS
PROGRAM VALUE MODE LOW LIMIT HIGH LIMIT DEFAULT
DISCHARGE PRESSURE CUTOUT —
325 psig 575 psig 570 psig
22.4 barg 39.6 barg 39.3 barg
SUCTION PRESSURE CUTOUT
WATER COOLING
80.0 psig 120 psig 80.0 psig
5.52 barg 8.27 barg 5.52 barg
GLYCOL COOLING
42.0 psig 70.0 psig 44.0 psig
2.9 barg 4.83 BARG 3.03 BARG
LOW AMBIENT TEMP, CUTOUT
STANDARD
AMBIENT
25.0°F 60.0°F 25.0°F
-3.9°C 15.6°C -3.9°C
LOW AMBIENT
0°F 60.0°F 25.0°F
-17.8°C 15.6°C -3.9°C
LEAVING CHILLED LIQUID TEMP
CUTOUT
WATER COOLING — —
36.0°F
2.2°C
GLYCOL COOLING
8.0°F 36.0°F 36.0°F
-13.3°C 2.2°C 2.2°C
ANTI-RECYCLE TIMER — 300 SEC. 600 SEC. 600 SEC.
FAN CONTROL ON PRESSURE —
360 psig 485 psig 385 psig
24.8 barg 33.4 barg 26.5 barg
FAN DIFFERENTIAL OFF PRESSURE —
50 psid 100 psid* 80 psid
3.45 bard 6.89 bard* 5.52 bard
TOTAL NUMBER OF COMPRESSOR
SINGLE SYSTEM 2 3 3
TWO SYSTEM 4 6 6
UNIT/SYSTEM TRIP VOLTS
CURRENT
FEEDBACK
OPTION ENABLED.
ONE PER UNIT
0.5 4.5 2
REMOTE UNIT ID — 0 7 0
SYSTEM 1 SUPERHEAT SETPOINT EEV
10.0°F 15.0°F 12.0°F
5.5°C 8.3°C 6.6°C
SYSTEM 2 SUPERHEAT SETPOINT EEV
10.0°F 15.0°F 12.0°F
5.5°C 8.3°C 6.6°C