Operations Screen; Display Only; Figure 34 - Operations Screen - York YST Operation Manual

SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
noTe: OptiView Control Center Screens shown may NOT represent the exact screens according to the software version utilized.
™

figure 34 - OPERATIONS SCREEN

overvieW
This screen allows definition of general parameters
having to do with the operation of the chiller.

diSplaY onlY

Chiller run Time
Displays the amount of time the chiller has been run-
ning at rated speed since the last start signal was re-
ceived. Value is reset to zero when the chiller enters
Coastdown. It remains at zero while shutdown and dur-
ing "System Prelube" and ramp up to minimum rated
speed.
prograMMable
Control Source
Access Level Required: OPERATOR
Define whether the control of the chiller will be Lo-
cal, Digital Remote, Analog Remote, Modem Remote
or ISN Remote.
number of Starts
Access Level Required: ADMIN
Displays the number of the starts the chiller has initiated.
This may be reprogrammed to a desired value, (gener-
ally when this value has been reset due to a Microboard
replacement), but should not be done so arbitrarily.
90

operaTionS SCreen

operating hours
Access Level Required: ADMIN
Displays the total accumulated run time of the chiller.
This may be reprogrammed to a desired value (gener-
ally when this value has been reset due to a Microboard
replacement), but should not be done so arbitrarily.
hot gas Control (enabled/disabled)
Access level required: SERVICE
Enables and disables the Hot gas Bypass Control fea-
ture.
refrigerant level Control (enabled / disabled)
Access Level Required: SERVICE
Enables and Disables the Subcooler Refrigerant Level
Control Feature.
flow Switch
Access Level Required: SERVICE
Used to enter the applicable Flow Switch type. Style
F and later chillers could be equipped with Differen-
tial Pressure Type (Digital), Paddle-type (Digital) or
Thermal-Type (Analog) Flow sensors. The actual type
installed must be entered to allow the program to read
the correct input.
FORM 160.67-O1
ISSUE DATE: 4/1/2015
LD09098
JOHNSON CONTROLS