Circulation Through Gun Manifold - Graco REACTOR H-VR Operation

Hydraulic variable ratio, heated, plural component proportioner. for spraying polyurethane foam and polyurea coatings
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Circulation Through Gun
Manifold
Do not circulate fluid containing a blowing agent with-
out consulting with your material supplier regarding
fluid temperature limits.
Circulating fluid through the gun manifold allows rapid
preheating of hose.
1. Install gun fluid manifold (P) on Part 246362 acces-
sory circulation kit (CK). Connect high pressure cir-
culation lines (R) to circulation manifold.
P
CK
2. Route circulation lines back to respective compo-
nent A or B supply drum. Use hoses rated at the
maximum working pressure of this equipment. See
Typical Installation, without circulation, page 9.
3. Follow Select ratio, page 22.
4. Turn main power ON
5. Set temperature targets, see page 25. Turn on
A
B
,
, and
.
6. Press
to display actual temperatures.
313539F
R
ti2767a
.
heat zones by pressing
7. Before starting motor, reduce hydraulic pressure to
the minimum required to circulate fluid until
B
and
temperatures reach targets.
8. Press motor
to start motor and pumps. Cir-
culate fluid at lowest possible pressure until temper-
atures reach targets.
Fluid Circulation
A
-
ti7732a
33

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