FORM 160.87-OM1
ISSUE DATE: 8/24/2018
JOHNSON CONTROLS
52
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
Surge Avoidance Surge Count
This is the total number of surges accumulated by the
Surge Protection feature. If equipped with a VSD or
MVVSD, it is only the surges detected while the drive
is running at maximum frequency.
Surge Avoidance Surge Detected (LED)
Illuminates momentarily when a surge is detected by
the Surge Protection feature. If equipped with a VSD
or MVVSD these are only the surges detected while
the drive is running at maximum frequency.
It illuminates 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.
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 the Op-
tiView Control Center Service Manual for details of
these messages.
PROGRAMMABLE
Close Percentage
Access Level Required: SERVICE
(5 to 15% Default 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
Access Level Required: SERVICE
(30 to 120 minutes; default 30 minutes)
This is the period of time after no more surges are de-
tected that the Hot Gas Valve closing will begin.
Minimum Load
Access Level Required: SERVICE
(0 to 4°F; default 0°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 allowable 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 time this key is pressed, the valve position is de-
creased 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.