York OPTIVIEW Operation Manual page 34

SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
Ramp Time
Access Level Required: ADMIN
After the chiller has been running for the level con-
trol startup delay time, if the refrigerant level is less
than the Level Setpoint, a linearly increasing ramp is
applied to the Level Setpoint. This ramp allows the
level to go from the present level to the programmed
Level Setpoint over a period of time programmed as
the Ramp Up Time. This setpoint can only be changed
with ADMIN level access.
Zone Transition Delta
Specifies the percentage increment away from level
setpoint for the control to switch zones of control.
Zone Transition Time
Specifies the continuous time level error most be in
Zone 1 on a transition from Zone 2 before switching
to Zone 1 control.
Zone 1 and Zone 2 PID Gains
Specifies the control gains for Zone 1 or Zone 2 level
control. The change setpoints key enables these for edit
in ADMIN level access.
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NAVIGATION
Home
Causes an instant return to the Home Screen.
Level Control
Causes an instant return to the Refrigerant Level Con-
trol Screen.
FORM 160.78-O2
ISSUE DATE: 5/22/2017
JOHNSON CONTROLS