JOHNSON CONTROLS
139
FORM 160.10-O1
ISSUE DATE: 4/27/2018
C
APPENDIX C - ANALOG INPUT RANGES (LOW PRESSURE CHILLERS)
The following table indicates the valid display range
for each of the analog sensor input parameters for low
pressure chillers. In the event that the input sensor is
reading a value outside of these ranges, the less than
(<) or greater than (>) symbols will be displayed beside
the minimum or maximum value, respectively.
TABLE 14 - ANALOG INPUT RANGES (LOW PRESSURE CHILLERS)
ANALOG INPUT
ENGLISH RANGE METRIC RANGE
LOW HIGH UNITS LOW HIGH UNITS
Leaving Chilled Liquid Temperature (RT1) 0.0 82.0 °F -17.7 27.7 °C
Return Chilled Liquid Temperature (RT9) 0.0 94.1 °F -17.7 34.5 °C
Leaving Condenser Liquid Temperature (RT4) 8.0 133.5 °F -13.3 56.3 °C
Return Condenser Liquid Temperature (RT5) 8.0 133.5 °F -13.3 56.3 °C
Evaporator Refrigerant Temperature (RT7) 0.0 126.1 °F -17.7 52.3 °C
Discharge Temperature (RT2) 19.0 226.3 °F -7.2 107.9 °C
Oil Temperature (RT3) 19.0 226.3 °F -7.2 107.9 °C
Condenser Pressure (CPT) 2.5 35.3 PSIA 17.2 243.4 KPAA
Condenser Temperature (R11)* (RT17) -1.4 124.2 °F -18.5 51.2 °C
Condenser Temperature (R123)* (RT17) 7.2 130.1 °F -13.7 54.5 °C
Evaporator Pressure (EPT) 0.0 12.5 PSIA 6.9 86.2 KPAA
Evaporator Temperature (R11)* (RT7) -31.2 66.8 °F -35.7 19.3 °C
Evaporator Temperature (R123)* (RT7) -22.4 74.2 °F -30.2 23.4 °C
Oil Sump Pressure (LOP) 2.9 20.9 PSIA 20.0 144.1 KPAA
Oil Pump Pressure (HOP) 14.3 78.2 PSIA 98.6 539.2 KPAA
Purge Pressure (PPT) 0.0 100.0 PSIA 6.9 689.5 KPAA
Drop Leg Refrigerant Temperature (RT6) 0.0 121.8 °F -17.7 49.8 °C
Bearing Temperature (RT15, RT16) 30.0 250.0 °F -1.1 121.1 °C
Refrigerant Level (Future) 0.0 100.0 % 0.0 100.0 %
*Calculated values when represented as a saturation temperature. They will display XXX if the pressure used for the calculation is out of range.
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