York YST, Operation Manual, Page: 19 / 164

JOHNSON CONTROLS
19
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
FORM 160.67-O1
ISSUE DATE: 4/1/2015
2
analog inpuT rangeS - YorK MiCroboard
The following tables indicate the valid display range
for each of the analog input values. In the event that the
input sensor is reading a value outside of these ranges,
the < or > symbols will be displayed beside the mini-
YorK MiCroboard analog inpuT
engliSh range MeTriC range
loW high uniTS loW high uniTS
Leaving Chilled Liquid Temperature
0.0 82.0 °F -17.7 27.7 °C
Return Chilled Liquid Temperature
0.0 94.1 °F -17.7 34.5 °C
Leaving Condenser Liquid Temperature
8.0 133.5 °F -13.3 56.3 °C
Return Condenser Liquid Temperature
8.0 133.5 °F -13.3 56.3 °C
Evaporator Refrigerant Temperature (Optional)
0.0 126.1 °F -17.7 52.3 °C
Discharge Temperature
31.8 226.3 °F -0.1 107.9 °C
Oil Temperature
31.8 226.3 °F -0.1 107.9 °C
Condenser Pressure (R22 and R134a)
0.0 315.0 PSIG 0.0 2172.4 KPAG
Condenser Temperature (R22)*
-122.1 130.9 °F -85.6 54.9 °C
Condenser Temperature (R134a)*
-98.7 160.1 °F -72.6 71.7 °C
Evaporator Pressure (R22 – water)
49.4 128.8 PSIG 340.6 888.2 KPAG
Evaporator Pressure (R22 – brine)
25.0 100.0 PSIG 172.4 689.6 KPAG
Evaporator Pressure (R134a)
5.5 77.4 PSIG 37.9 533.7 KPAG
Evaporator Temperature (R22 – water)*
13.0 67.0 °F -10.5 19.4 °C
Evaporator Temperature (R22 – brine)*
-18.0 51.4 °F -27.7 10.7 °C
Evaporator Temperature (R134a)*
-44.9 64.7 °F -42.7 18.1 °C
Oil Sump Pressure (R22)
23.2
271.8 PSIG 160.0 1874.4 KPAG
Oil Sump Pressure (R134a)
0.0 315.0
PSIG
0.0 2172.4
KPAG
Oil Pump Pressure (R22 and R134a)
0.0 315.0
PSIG
0.0 2172.4
KPAG
High Speed Thrust Bearing Proximity Position
8.0 99.0
Mils
203 2515
Micrometers
Subcooler Refrigerant Level
0.0 100.0
%
0.0 100.0
%
Drop Leg Refrigerant Temperature (optional)
0.0 121.7
°F
-17.7 9.8
°C
*Saturation temperatures are calculated values. They will display XXX if the pressure used for the calculation is out of range.
English/Metric Display Units Configuration – The
Control Panel can present data on the Graphic Display
in English or Metric Units. In Operator Access Level,
from the HOME screen, press the “Setpoints” key to
go to the SETPOINTS screen. Next, press the “Setup”
mum or maximum value, respectively. Inputs shown
as optional must be enabled on the appropriate screen
in order to be displayed.
key to go to the SETUP screen. Press the “User” key to
go the USER SETUP screen. Press the “English/Metric
Units” key to select the desired units. The data field
will toggle between English and Metric with each press
of the “ ◄ or ► ” key.