Johnson Controls YORK OPTIVIEW CONTROL CENTER, Operation Manual

Page: 48 / 142

JOHNSON CONTROLS
48
FORM 160.10-O1
ISSUE DATE: 4/27/2018
SECTION 2 - OPTIVIEW OPERATION
PROGRAMMABLE
Local Motor Current Limit
Access Level Required: OPERATOR
Allows the maximum allowed motor current (as a
percentage of FLA) to be adjusted. When the motor
current reaches this value, the pre-rotation vanes will
not open further. If the motor current rises above this
value, the pre-rotation vanes will close to reduce cur-
rent to this setpoint. This value is adjustable from 30 to
100%, with 100% as the default setting.
Pulldown Demand Limit
Access Level Required: OPERATOR
This setpoint limits the motor current (programmed as
a percentage of FLA) during the specified pulldown
demand time. This value will override the motor cur-
rent limit value during this time period. This function is
used to provide energy savings following chiller start-
up and is adjustable from 30 to 100%, with 100% as
the default setting.
Pulldown Demand Time
Access Level Required: OPERATOR
This setpoint programs the period of time the pulldown
demand limit will be in effect after the chiller starts.
The pulldown demand time is adjustable from 0 to 255
minutes, with 0 minutes as the default.
Full Load Amps
Access Level Required: SERVICE
Defines the maximum amps at which the motor can
operate. This value is displayed when logged in at “Op-
erator” or “View” access level. This value is adjust-
able from 35 Amps to 1050 Amps; 35 Amps is the de-
fault value. Service technicians refer to the
Solid State
Starter MOD “B” – Operation/Service Manual (Form
160.00-O2) .
Voltage Range
Access Level Required: SERVICE
This should be set accordingly with the supply volt-
age connected to the starter, and allows for proper
voltage checking. When enabled, this range is used to
determine a low line and high line voltage threshold
for initiating a shutdown. Service technicians refer to
the Solid State Starter MOD “B” – Operation/Service
Manual (Form 160.00-O2)
.
Starting Current
Access Level Required: SERVICE
Defines the maximum allowed motor starting inrush amps.
The solid state starter will limit the motor starting current
to this value. The starting current can be adjusted from 310
Amps to 3300 Amps; 310 Amps is the default value. Ser-
vice technicians refer to the
Solid State Starter MOD “B”
– Operation/Service Manual (Form 160.00-O2) .
Open SCR (Enabled/Disabled)
Access Level Required: SERVICE
Allows the user to enable or disable the solid state starter
Open SCR safety detection. This must never be disabled
unless under advisement of the YORK Factory. Service
technicians refer to the Solid State Starter MOD “B” –
Operation/Service Manual (Form 160.00-O2) .
Shorted SCR (Enabled/Disabled)
Access Level Required: SERVICE
Allows the user to enable or disable the Solid State Starter
Shorted SCR safety detection. This setpoint must never
be disabled unless under advisement of the York Factory.
Service technicians refer to the Solid State Starter MOD
“B” – Operation/Service Manual (Form 160.00-O2) .
kWH Reset
Access Level Required: SERVICE
Allows the user to reset the cumulative kilowatt-hours
to zero (0). Service technicians refer to the Solid State
Starter MOD “B” – Operation/Service Manual (Form
160.00-O2) .
Change Setpoint
Access Level Required: VIEW
Allows user to enter login password to change motor
settings. This button is only present at the “View” ac-
cess level.
NAVIGATION
Home
Access Level Required: VIEW
Returns the display to the Home screen.
Motor Temperature
Access Level Required: VIEW
Advances to the Motor Temperature screen.