Table 7: Legend for system piping and instrumentation diagram for YVAM Mod B design
Device Description
Pump-1 Coolant pump, VSD
SST-1 Motor cooling eductor motive strainer
SST-2 Motor cooling eductor suction strainer
SV-1 Discharge service valve
SV-2 Discharge service valve
SV-3 Discharge service valve, low point
TE-1 Customer outlet water temperature sensor
TE-2 Customer inlet water temperature sensor
TE-3 Compressor discharge temperature sensor
TE-4 Compressor motor housing temperature sensor
TE-5 Evaporator temperature sensor
TE-6 Condenser outlet liquid temperature sensor
TE-7 VGD temperature sensor
TE-8 MBC temperature sensor
TE-10 Power panel temperature sensor
TE-11 OptiView temperature sensor
TE-12 Ambient temperature sensor
V-1 BPHE coolant exit valve
V-2 PE1 valve
V-3 Eductor motive feed solenoid valve
V-4 Condenser section 1 feed isolation valve
V-5 Condenser section 2 feed isolation valve
V-6 PE2 valve
V-7 Condenser section 1 return isolation valve
V-8 Condenser section 2 return isolation valve
V-9 Condenser section 1 service valve
V-10 Condenser section 2 service valve
V-11 VSD feed angle valve
V-12 Motor cooling ball valve
V-13 PE3 valve
V-14 PE4 valve
V-15 BPHE ball valve
V-16 Liquid line isolation valve on VOV-1
V-17 Drain valve
VOV-1 Condenser drain valve
OptiView Control Center
The YORK OptiView Control Center LCD graphic display and keypad is the interface for starting,
stopping, configuring, monitoring, and commanding the chiller controls. The control center
is a microprocessor-based system for centrifugal chillers. It controls the leaving chilled liquid
temperature (LCHLT) and maintains safe operation. It is factory-mounted, wired, and tested.
The graphic display presents the operating parameters in logical groups on screens and can
trend data to show a graphical representation of present or historical operation of the chiller. The
locations of various chiller parameters are clearly and intuitively marked. Instructions for specific
operations are provided on many of the screens. For information on the screens and navigation,
see OptiView Control Center functions and navigation.
Eight buttons on the right side of the panel are primarily used for navigation between the system
screens. Five additional buttons are located at the base of the display. The button functions are
redefined based on the currently displayed screen. The area to the right of the keypad is used for
data entry and a standard numeric keypad is provided for programming system setpoints and
limits.
YVAM with OptiView Control Center26
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