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Overview
The proportioner coolant loop circulates coolant
through secondary heat exchangers (HE) located
on the back of the proportioner to heat the A
and B component material before the material is
pressurized in the proportioner pumps (PA, PB). After
the A and B material has been heated in the heat
exchangers, the material enters the fluid manifold
(FM) and heated hose.
For models with a booster heater, the A and B
material enters the booster heater after the material
is pressurized in the proportioning pumps to heat the
material higher than 140°F (60°C).
PA
HE
PB
FM
Aan
d B Component Material Flow
Fig
ure 22
3A1705J 31