JOHNSON CONTROLS
59
FORM 160.72-O1 (810)
OVERVIEW
This screen displays the miscellaneous setpoints. These
points will be configured at commissioning by a quali-
fied Johnson Controls Service Technician.
DISPLAY ONLY
PRV Ramp Rate
The rate at which Pre-Rotation vanes will ramp open to
100 % from the Minimum Startup Position once motor
interlock is detected at startup.
Hot Gas Ramp Rate
The rate at which the hot gas bypass valve will ramp
closed at startup.
Hot Gas Ratio Bypass Setpoint
The Hot Gas Bypass Ratio setpoint as a scaled ratio of
the desired PRV position to the anti-surge PRV position.
Pre-Rotation Vanes Minimum Startup Position
The minimum position for the Pre-Rotation vanes at
startup.
MISCELLANEOUS SETPOINTS SCREEN
MISCELLANEOUS SETPOINTS SCREENFIGURE 21 -
Pre-Rotation Vanes Auto Temp Control
Position
The minimum position for the Pre-Rotation vanes at
startup.
Level Control Valve Min Position
The minimum position for the subcooler level valve at
startup.
PROGRAMMABLE
Requires access level of SERVICE,
Service Technicians refer to the Service
Instructions (Form 160.72-M1) for opera-
tion instructions and explanation of all
programmable setpoints and displayed
values.
Change Setpoints
Allows a qualified Service Technician to change any
of the setpoints shown above. Refer to the Service In-
structions (Form 160.72-M1).
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