FORM 160.54-O1
ISSUE DATE: 9/10/2014
JOHNSON CONTROLS
64
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
Surge Avoidance Surge Detected (LED)
Illuminates momentarily when a surge is detected by
the Surge Protection feature. If equipped with a VSD
or MV VSD these are only the surges detected while
the drive is running at maximum frequency.
If equipped with software version C.OPT.01.18.307
or earlier, this is displayed as Surge Detected. It illu-
minates momentarily when a surge is detected by the
Surge Protection feature. If equipped with a VSD, it
illuminates whenever a surge is detected, regardless of
the VSD operating speed.
ACC Surge Detected (LED)
[Software version C.OPT.01.19.307 and later only.
Only displayed if equipped with a VSD (in Modbus
Protocol Configuration only) or MV VSD].
Illuminates momentarily when a surge is detected by
the ACC function in the Microboard, while the drive is
running at less than maximum frequency.
Hot Gas Bypass Control Mode
Indicates whether the Hot Gas Bypass is under auto-
matic, manual or override control. When in manual
control, it is controlled from this screen. When in over-
ride control, Minimum Load, VSD Override or VGD
Override is displayed as appropriate. Refer to
OptiView
Control Center – Service Instructions (Form 160.54-
M1)
for details of these messages. Software versions
C.OPT.01.18.307 and earlier display OVERRIDE for
any of these conditions.
For fields 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
Close Percentage
(5 to 15%)
This is the incremental amount that the Hot Gas Valve
will be closed at 10 minute intervals after the HOLD
period has elapsed.
Hold Period
(30 to 120 minutes)
This is the period of time after no more surges are de-
tected that the Hot Gas Valve closing will begin.
Minimum Load
(0 to 4°F)
This sets the offset below the Leaving Chilled Liquid
Temperature Setpoint at which the Hot Gas Valve will be
opened to the position allowed by the Maximum Open
Setpoint.
Maximum Open
(25 to 100%)
The maximum allowed position for the Hot Gas Valve
during a Minimum load override condition.
[Hot Gas Bypass Control] Open (Manual)
Puts the Hot Gas Bypass valve in manual control mode.
Each time this key is pressed, the valve position is in-
creased by 5%.
[Hot Gas Bypass Control] Close (Manual)
Puts the Hot Gas Bypass valve in manual control
mode. Each this key is pressed, the valve position is
decreased by 5%.
[Hot Gas Bypass Control] Auto
Returns the Hot Gas Bypass Control to automatic
mode.
NAVIGATION
Home
Access Level Required: VIEW
Returns user to HOME Screen.
Compressor
Access Level Required: VIEW
Returns user to COMPRESSOR Screen.
