FORM 160.54-O1
ISSUE DATE: 9/10/2014
JOHNSON CONTROLS
104
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
Pre-rotation Vanes Position
Displays the present Pre-rotation Vane position as a
value between 0% (closed) and 100% (full open). This
value is provided by the ACC Board.
Delta P/P
Displays chiller head pressure calculated as (condenser
pressure - evaporator pressure/evaporator pressure).
This value is calculated by the ACC Board.
Temperature Differential (LCHLT – Setpoint)
Displays the difference between the Leaving Chilled
Liquid Temperature and the Leaving Chilled Liquid
Temperature Setpoint.
Command Frequency
This is only displayed in Manual Speed Control mode
and it is the speed command being sent to the ACC
Board in Manual Speed Control mode.
ACC Surge Count
This count is provided by the ACC Board. Increments
each time the ACC Board detects a surge, whether run-
ning at maximum or less than maximum frequency.
For elds requiring access level of SER-
VICE. Service Technicians refer to the
OptiView Control Center - Service Instruc-
tions (Form 160.54-M1) for operation
instructions and explanation of all pro-
grammable setpoints and displayed values.
PROGRAMMABLE
Surge Margin Adjust
This value determines how close the frequency reduc-
tion will be allowed to get to the surge line. It is sent to
the ACC Board. Programmable over the range of 0.0
(default) to 25.0Hz. Service Technicians should refer
to Variable Speed Drive – Service Instructions (Form
160.00-M4) prior to adjusting this setpoint.
Auto Map Print (Enable/Disable)
When enabled, the ACC surge map values from the
ACC Board are printed to a connected printer each
time a surge point is mapped, as shown in SECTION
4 - PRINTING of this manual.
Manual Surge Point
Allows the Service Technician to manually log the
present running operating conditions into the surge
map (in the ACC Board) as a valid surge point. When
this key is pressed, a dialog box appears requesting a
special password to proceed.
Surge Map Print
Allows the Service Technician to print the entire surge
map from the ACC Board to a connected printer, as
shown in SECTION 4 - PRINTING of this manual.
Surge Map Clear
Allows the Service Technician to clear the surge map
stored in the ACC Board. When this key is pressed,
a dialog box appears requesting a special password to
proceed.
NAVIGATION
Home
Access Level Required: VIEW
Returns user to HOME Screen.
VSD
Access Level Required: VIEW
Returns user to VSD Screen.
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