Section 9: Flavor System 3033-009B
9-8 Concordia Xpress Technical Support Manual
2900-300B
Peristaltic Pumps
Operating Voltage: 24Vdc
282rpm
A peristaltic pump has a roller assembly attached to a rotating armature
that presses tubing against a rigid semicircular wall. The tube is filled
with product and as the tube is compressed, the product is pushed
through the tube, towards the syrup valve.
The amount of time the pump operates is adjustable in the FLAVOR
TIMINGS sub-category of the software menu.
When replacing the pump or tubing, be certain to correctly route the
tubing, to ensure proper flow. Also, verify tubing is not twisted or binding.
There is a dedicated peristaltic pump for each flavor, for a total of six
pumps.
Syrup Manifold
The tubing from the peristaltic pumps connects to the syrup manifold, to
deliver flavor syrup or chocolate sauce. The syrup manifold is located
above the milk bowl and the drink output nozzles.
Poppet valves control the flavor flow and each flavor has a dedicated
poppet valve. The pressure created when a flavor is chosen and
dispensed opens the valve. The poppet valve is not electronically
controlled. After the flavor is pumped into the syrup manifold, the
pressure to the poppet valve equalizes and the poppet valve naturally
closes.
When connecting the tubing to the manifold, ensure the color on the
flavor tube matches the color for the connection point on the syrup
manifold. The color-coding scheme is consistent throughout the flavor
delivery system and must be followed to prevent cross-contamination of
syrup tubes.
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