York YST Operation Manual page 98

SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
MSSp13 – Turbine Shaft vibration Sensors
Screen: Turbine
Range: Enabled/Diasabled
This is automatically changed to Enabled if MSSP4-
Turbine Start Mode is set for Auto and the turbine must
be fitted with two proximity probes on each end. If
MSSP4 is set to Manual, this must be set to Enabled if
the turbine is fitted with vibration probes.
MSSp14 – Turbine bearing Temperature
Sensors
Screen: Turbine
Range: Enabled/Diasabled
If the turbine is not fitted with bearing temperature sen-
sors, this must be set to Disabled.
MSSp15 – Turbine first Stage pressure
Sensor
Screen: Steam System
Range: Enabled/Diasabled
If the turbine is not fitted with a first stage pressure
transmitter, this must be set to Disabled.
MSSp16 – Turbine nozzle Solenoids
Screen: Steam System
Range: Enabled/Diasabled
This is automatically changed to Enabled if MSSP4-Tur-
bine Start Mode is set for Auto and the turbine must be fit-
ted with pneumatically actuated nozzle valves. If MSSP4
is set to Manual, this must be set to Enabled if the turbine
is fitted with pneumatically actuated nozzle valves.
MSSp17 – Turbine Stage Count
Screen: Turbine
Range: 6-10
This is set to the number of stages in the turbine and
is used in the calculation for the preset of the slow
roll warm-up timer. A countdown timer displaying the
time remaining in the slow roll cycle appears with the
message "SLOW ROLLINg" in the System Status
display.
MSSp18 – Compressor vibration Sensors
Screen: Compressor
Range: Enabled / Disabled
If the Compressor is not fitted with Accelerometers,
this must be set to Disabled.
98
Default: Disabled
Default: Disabled
Default: Disabled
Default: Disabled
Default: 7
Default: Disabled
MSSp19 – governor valve location
Screen: Steam System
Range: Turbine/External
If the Governor Valve is NOT installed on the Turbine,
this must be set to External.
Change Setpoints
Access Level Required: SERVICE
This key enables the field selection cursor. The opera-
tor may then toggle between the programmable data
fields using the Cursor Arrow keys.
navigaTion
page down
Access Level Required: VIEW
Moves to the Configuration Screen 2.
home
Access Level Required: VIEW
Causes an instant return to the Home Screen.
Setpoints
Access Level Required: VIEW
Causes an instant return to the Setpoints Screen.
pressure Setpoints
Access Level Required: VIEW
Moves to a sub-screen that allows programming of various
pressure thresholds pertaining to the operation of the chiller.
Time Setpoints
Access Level Required: VIEW
Moves to a sub-screen that allows programming of vari-
ous time delays pertaining to the operation of the chiller.
Speed Setpoints
Access Level Required: VIEW
Moves to a sub-screen that allows programming of various
speed thresholds pertaining to the operation of the chiller.
ramp rate Setpoints
Access Level Required: VIEW
Moves to a sub-screen that allows programming of vari-
ous speed setpoint and valve control signal ramp rates
pertaining to the operation of the chiller.
FORM 160.67-O1
ISSUE DATE: 4/1/2015
Default: External
JOHNSON CONTROLS