York YK-EP B Operation & Maintenance Manual page 48

SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
Level Control Valve Command
Displays the state of the Level Control Valve in percent
of open, where 100.0% is fully open and 0.0% is fully
closed.
PROGRAMMABLE
Economizer Level Setpoint
Access Level Required: SERVICE
Displays the economizer refrigerant level setpoint to
tenths of a percent.
(Min 20%, Max 80%, Default 70%)
Economizer Stopped Setpoint
Access Level Required: SERVICE
Displays the economizer refrigerant stopped level
setpoint to tenths of a percent.
(Min 0%, Max 80%, Default 20%)
Startup Position
Access Level Required: SERVICE
Indicates in tenth of a percent the Economizer Level
Control Valve Startup Position setpoint.
(Min 0%, Max 100%, Default 50%)
Startup Delay
Access Level Required: ADMIN
This button displays the startup delay time in seconds.
Ramp Time
Access Level Required: ADMIN
Displays the amount of time that it takes for the Econ-
omizer to go from the Stopped Setpoint to the Level
Setpoint. The time will remain the same even if the
Stopped setpoint is 10% below the Level Setpoint.
Change Setpoints
Access Level Required: ADMIN
This enables a green box to be displayed which can be
scrolled through the 3 Economizer PID gain settings.
Manual Increment
Access Level Required: SERVICE
This oversized button will also contain a text box dis-
playing the Economizer Level Control Valve Manual
Increment for manual control.
48
Open
Access Level Required: SERVICE
Pressing this button will set the Economizer Level
Control Valve Mode to Manual, if it had been in Auto.
It will increase the current Economizer Level Control
Valve Command by an amount equal to the Manual In-
crement, with a maximum of 100.0%.
Close
Access Level Required: SERVICE
Pressing this button will set the Economizer Level
Control Valve Mode to Manual, if it had been in Auto.
It will decrease the current Economizer Level Control
Valve Command by an amount equal to the Manual In-
crement, with a minimum of 0.0%.
Set
Access Level Required: SERVICE
Pressing this button will open a dialog box where
the user can manually enter a valve command. Once
a value has been entered and the Enter key pressed,
the Economizer Level Control Valve Mode shall be set
to Manual, if it had been in Auto and the Economizer
Level Control Valve Command shall be set to the en-
tered value.
Auto
Access Level Required: SERVICE
Pressing this button will set the Economizer Level
Control Valve Mode to Auto Control. This button will
only be available and active when the Economizer
Level Control Valve Mode is Manual
NAVIGATION
Home
Access Level Required: VIEW
Returns user to HOME Screen.
Economizer Compressor
Access Level Required: VIEW
Returns user to ECONOMIZER COMPRESSOR
Screen.
FORM 160.87-OM1
ISSUE DATE: 8/24/2018
JOHNSON CONTROLS