Section 9: Flavor System 3033-009B
9-2 Concordia Xpress Technical Support Manual
2900-300B
The Flavor System
The Espressjet® flavor delivery system delivers syrups and sauces into
the cup by using peristaltic pumps to move the product from the flavor
box, through the flavor tube, to a poppet valve, and then to the product
delivery assembly. The amount of time the pump and valve operate is
adjustable in the FLAVOR TIMINGS sub-category of the software menu.
The output of the poppet valve feeds the flavor into the flow of steamed
milk inside the syrup manifold, where the steam, milk and syrup/sauce
are infused together and then delivered into the cup.
Chocolate Sauce Delivery Path
The tube for chocolate sauce is larger than the tubes for syrups, to
accommodate the thicker consistency of the chocolate sauce.
Chocolate sauce flows from the flavor box, through the chocolate sauce
tube and into the chocolate poppet valve. Once the flow of chocolate
sauce ends, the chocolate poppet valve closes. Milk continues to flow
into the syrup manifold, to mix the chocolate sauce with the milk and to
flush residual chocolate from the syrup manifold.
Before the poppet valve closes at the end of a chocolate-based drink
pour, two pulses of hot water are flushed through the poppet valve, from
a dedicated chocolate purge valve, to clear the poppet valve of chocolate
sauce residue.
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