Filter
Top Products
Portable Hot Oil Temperature Control Units Page 9
The controller automatically regulates cooling by opening and closing the cooling solenoid
valve. This allows the proper amount of cooling water to pass through the tubes of the heat
exchanger and out the drain. A water supply of 75 psi (517.1 kPa/5.2 bars) maximum is
required for connection to the heat exchanger.
Connection Lines
Connections for TO PROCESS and FROM PROCESS lines are ¾" NPT. Water
connections for COOLING WATER SUPPLY is ½" and COOLING WATER DRAIN is
¾” NPT. (see Section 3.) The customer is responsible for conversions to metric standards.
We stock many lengths of flexible metal hose; the part number is 572-16969. State the length
of hose you want when ordering.
! WARNING
Component failure may result in high-temperature
oil spray, causing serious injury or death.
Make sure hoses, valves, and other components
installed in your process can withstand maximum
temperature and pressure of the unit; check unit
nameplate for specific capacities.
All components must be carefully inspected for
condition before installing. Make sure you have
factory components if you have any doubt.
Electrical System Controls
The electrical controls of your temperature control unit are specially engineered for
reliability, safety and simplicity of operation. The switches are clearly labeled as to their
function. Your temperature control unit has a system status board so you can evaluate the
status and performance of the unit at a glance. Pilot lights are provided to indicate key unit
functions.
An optional audible alarm is available your unit. The optional alarm will sound in the event
the To Process temperature exceeds the offset alarm setpoint.
Push the ALARM SILENCE button to silence the alarm. See Chapter 5 for more information
on control functions.
Electrical Panel and System Components
The pump motor and immersion heater operate on three-phase, 50/60 cycle, nominal voltage
with the control circuit at 115 V single phase. The control circuit voltage is provided by a
single phase machine tool transformer with primary fuse protection and a grounded
secondary..
All components are IEC rated for long life and reduced maintenance. The heater elements are
branch fused, and protected from contactor welding by a separate primary voltage contactor.
The pump motor is controlled by a full voltage magnetic reversing starter, with fused branch