Advantage Sentra SK Series, Instruction Manual

Page: 53 / 70

Temperature Control Units : Sentra with VE Series Instrument
Page: 53
Advantage Engineering, Inc.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: 317-881-1277
Service Department Fax: 317-885-8683
www.AdvantageEngineering.com
D. COOLING CYLINDER. The cooling cylinder is a custom
cast tank. The tank is flanged mounted to the pump
casing. Reinforced machined bosses accept the pressure
relief valve, the “from process” pressure gauge and
pressure switch capillary connector, AVT
TM
modulating
cooling valve, the “water supply connection” and the “from
process” connection.
E. PRESSURE RELIEF VALVE. The pressure relief valve
is a 150 psi relief valve serving to discharge excessive
unit pressure to atmosphere. The valve can be manually
activated by lifting the actuating lever (figure 6.1F).
F. PVT
TM
VALVE. The PVT
TM
valve is a microprocessor
control solenoid valve use to discharge heated
process water to drain as needed to control process
temperature.
G. PRESSURE GAUGES. “To” and “from” process
pressure gauges display the system pressure. “To
process” pressure originates at the heat/pump discharge
cylinder. “From process” pressure originates at the
cooling cylinder. The gauges accurately display system
pressures from 0 to 160 PSI (figure 6.1G).
H. CASTERS. The unit is mounted on 4 swivel ball bearing
casters. The casters allow the unit to be portable and
easily move from location to location.
I. STAINLESS STEEL CABINETRY. The stainless steel
cabinetry prevents unsightly rust and metal decay. The
electrical cabinet cover is hinged. The unit base is made
of pressed steel with galvanized zinc coating. The lift off
access panel is secured to the unit base by 5 screws.
6.2 ELECTRICAL SYSTEM
A. INSTRUMENT. The instrument is a custom designed and
assembled microprocessor controller. The instrument is
mounted to the electrical panel cover. The instrument
controls the cycling of the heater, motor pump and
AVT
TM
cooling valve. System and setpoint temperatures
are displayed continually. System parameters are
programmable..
B. TRANSFORMER. The transformer supplies 110 volts to
the controlling instrument (figure 6.2B).
C. PUMP MOTOR CONTROLLER. The electrical motor
is engaged when the motor starter contacts close,
Heater Discharge tank
Stainless Steel Cabinetry
Typical instrument with service
connections removed
PVT valve
Figure 6.1F