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Fluid Circulation
30 3A1569B
Fluid Circulation
Circulation Through Reactor
To circulate through gun manifold and preheat hose, see
page 31.
1. Follow Initial Startup, page 21.
2. See Typical Installation, with Circulation, page
10. Route circulation lines back to respective com-
ponent A or B supply drum. Use hoses rated at the
maximum working pressure of this equipment. See
Technical Data, page 37.
3. Set PRESSURE RELIEF/SPRAY valves (SA, SB) to
PRESSURE RELIEF/CIRCULATION .
4. Turn main power ON .
5. Set temperature targets, see page 22. Turn on
and heat zones by pressing .
Do not turn on heat zone unless hoses are
already loaded with fluid.
6. Press to display actual temperatures.
7. Turn the air regulator to a low pressure until
and temperatures reach targets. Increase
the pressure once the temperatures are on target.
8. Turn on heat zone by pressing .
9. Set PRESSURE RELIEF/SPRAY valves (SA, SB) to
SPRAY .
Do not circulate fluid containing a blowing agent
without consulting with your material supplier
regarding fluid temperature limits.
Do not install shutoffs downstream of the
PRESSURE RELIEF/SPRAY valve outlets (BA, BB).
The valves function as overpressure relief valves
when set to SPRAY . Lines must be open so
valves can automatically relieve pressure when
machine is operating.
ti8441a
SB
SA
A
B
A
B
ti8442a
SB
SA