Fluid Circulation
Circulation Through Reactor
Read Warnings; see page 4. Do not circulate fluid containing a blowing agent without consulting with your material supplier regarding fluid temperature limits.
To circulate through gun manifold and preheat hose; see page 32.
1. Load fluid with feed pumps; see page 21.
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 relive pressure when machine is operating.
2.Route circulation lines back to respective component A or B supply drum. Use hoses rated at the maximum working pressure of this equipment, see hose manual.
3.Set RECIRC/SPRAY valves (SA, SB) to RECIRC.
SA
BA | SB |
|
BB
ti8442a
4.Turn Main Disconnect Switch (R) ON.
5.Open air inlet ball valve.
6.Set temperature targets; see page 22. Turn on heater.
Fluid Circulation
Do not turn on hose heat unless hoses are already loaded with fluid.
7.Set both Air Regulator pressures to start at 15 psi (1.0 bar).
8.Turn PARK/RUN switch to RUN.
9.Turn Pump Mode Function switch to START.
10.Recirculate until desired temperature reaches set point.
11.Turn Pump Mode Function knob to OFF.
12.Turn on hose heat if hose is filled with fluid without air pockets or solvent.
13.Set PRESSURE RELIEF/SPRAY valves (SA, SB) to
SPRAY.
SA
SB
ti8442a
For additional circulation information, refer to manual 309852.
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