Specifications

67
JOHNSON CONTROLS
Form 201.28-NM1.EN.PED/CE (0211)
8
The next key press displays the system run time in days,
hours, minutes and seconds.
SYS 1 RUN TIME
XX DAYS XX HOURS XX MINUTES XX SECONDS
The next key press indicates the status of the RUN
Relay where XXX is ON or OFF, the status of the RUN
Permissive signal (flow switch/remote start/stop circuit 2
and 15 of 1TB, SYS 1) or 2 and 16 of 1TB, SYS 2) and
whether the internal software is telling the system to run
(ON or OFF).
SYS 1 RUN SIGNALS RELAY = XXX
RUN PERM = XXX SOFTWARE = XXX
System 2 Data Key Operation
System 2 keys function the same as the SYSTEM 1
DATA key except that it displays data for System 2.
On a 2 compressor system, the SYSTEM 3 and SYSTEM
4 data keys will display the following messages:
SYS 3 DATA NOT AVAILABLE
SYS 4 DATA NOT AVAILABLE
Sensor Displays
Table 6 lists all the sensors attached to the control board
associated with system data keys. The minimum and
maximum values displayed on the micro display are
provided.
If values exceed the limits in the table, a < (less than) or >
(more than) sign will be display along with the minimum
or maximum value.
TABLE 6 - SENSOR MIN/MAX OUTPUTS
SYSTEM SENSOR
SENSOR / INPUT TYPE MINIMUM VALUE MAXIMUM VALUE
Suction Pressure Transducer 0.0 PSIG (0 barg) 125.0 PSIG (8.62 barg)
Condenser Liquid Pressure Transducer 0.0 PSIG (0 barg) 400.0 PSIG (27.6 barg)
Discharge Pressure Transducer 0.0 PSIG (0 barg) 400.0 PSIG (27.6 barg)
Oil Pressure Transducer 0.0 PSIG (0 barg) 400.0 PSIG (27.6 barg)
Flash Tank Level Capacitance 0.0% 100%
Condenser Liquid Temp Thermistor -4.1 °F (-20.06 °C) 155.6 °F (68.67°C)
Leaving Chilled Liquid Temp Thermistor -19.1 °F (-28.49°C) 110.2 °F (43.44°C)
Return Chilled Liquid Temp Thermistor -19.1 °F (-28.49°C) 110.2° F (43.44°C)
Eductor Temp Thermistor -4.1° F (-20.06°C) 132.8 °F (56.00°C)
Ambient Air Temp Thermistor -4.6 °F (-20.33°C) 137.9° F (58.83°C)
Compressor Motor Temp Thermistor -30.2 °F (-34.56°C) 302.0° F (150.00°C)
Discharge Temp Thermistor 40.3 °F (4.61°C) 302.6 °F (150.33°C)
Remote Temp Reset
4 to 20ma, 0 to 10 VDC,
0 to 20ma or 2 to 10VDC
0% 100%
Remote Current Limit
4 to 20ma, 0 to 10 VDC,
0 to 20ma or 2 to 10VDC
0% 100%
Remote Sound Limit
4 to 20ma, 0 to 10VDC,
0 to 20ma or 2 to 10VDC
0% 100%