York YK Style H Operation Manual page 81

With optiview control center centrifugal liquid chillers, for electro-mechanical starter, solid state starter and variable speed drive
Hide thumbs Also See for YK Style H:
Table of Contents

Advertisement

FORM 160.76-O2
issue date: 6/15/2015
• When the compressor is running and Oil Sump
Temperature is more than Oil Return Min plus
7°F, open (energize) the Oil Return Solenoid by
energizing K12 relay.
• During coastdown, the solenoid operation is not
changed from standard logic, it remains closed.
During startup the operation is not changed from
standard logic, it remains closed for 1 minute after
System Run.
Pressure Setpoint (Variable Speed Oil Pump
Only)
Access Level Required: SERVICE
The Variable Speed Oil Pump (VSOP) operates to con-
trol to a defined Oil Pressure value. This key allows the
user to define the setpoint for the VSOP control.
Control Period (Variable Speed Oil Pump
Only)
Access Level Required: SERVICE
By default, the automatic VSOP control algorithm op-
erates every 300ms. This key allows the user to specify
the control period in multiples of 300ms.
JOHNSON CONTROLS
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
NAVIGATION
Home
Access Level Required: VIEW
Returns user to HOME Screen.
Compressor
Access Level Required: VIEW
Navigate to the Compressor Screen.
2
81

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents