York OPTIVIEW Operation Manual page 32

SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
Active Level Setpoint
Displays the refrigerant level target that the chiller
is controlling to. This value is determined as level
setpoint or ramp up target, depending on state.
Level Control State
Indicates the zone control state currently in effect for
the Refrigerant Level control.
Inactive
Start-up Hold
Zone 1
Zone 2
Zone 2 to Zone 1
Manual
Transition Time Remaining
Displays the time remaining in the Programmable
Zone Transition timer when transitioning from Zone 2
to Zone 1. When transitioning from Zone 2 parameter
set to Zone 1 parameter set, the Zone 1 error require-
ment must be met for this delay before Zone 1 param-
eters are used.
Ramp Up Time Remaining
Displays the time remaining in the Ramp Up time
countdown timer while a Refrigerant Level target ramp
is in effect.
Startup Delay Remaining
Displays the time remaining in the Startup Delay time
countdown timer while Startup Delay is in effect.
Level Control Valve Command
Displays the position command to the level control
valve in percent of travel with 0% full closed to 100%
full open.
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Level Control
NOT in Effect
Start-up delay is in effect
Zone 1 control is in effect
Zone 2 control is in effect
Control is Zone 2, error
has crossed to Zone 1,
and the transition delay
timer is counting down.
Control in Manual
PROGRAMMABLE
Level Setpoint
Specifies the desired refrigerant level to be maintained
in the condenser, as a percent of the level sensor span.
[Refrigerant Level Control] Open (Manual)
This key puts the Level Control into manual mode and
changes the command to the variable orifice, torward
open by the manual increment value.
[Refrigerant Level Control] Close (Manual)
This key puts the Level Control into manual mode and
changes the command to the variable orifice toward
close by the manual increment value.
[Refrigerant Level Control] Manual Increment
This key enables the change increment to be set for
manual control. It displays the increment in a textbox.
[Refrigerant Level Control] Auto
Returns the Level Control to automatic mode.
[Refrigerant Level Control] Set (Manual)
This key allows manual programming of a fixed level
control valve command percentage. This key puts level
valve control in manual mode, fixed to the value speci-
fied.
NAVIGATION
Home
Causes an instant return to the Home Screen.
Condenser
Returns to the Condenser Screen.
Setpoints
Access Level Required: SERVICE
Moves to the subscreen allowing programming of re-
frigerant control setpoints.
FORM 160.78-O2
ISSUE DATE: 5/22/2017
JOHNSON CONTROLS