3033-007B Section 7: Milk System and Refrigeration Unit
Concordia Xpress Technical Support Manual 7-3
2900-300B
Milk System Theory of Operation
Basic Terminology
Milk Timings
The amount of time milk is poured for a specific drink.
Steamed Milk
Steamed milk is hot milk 160-170°F (71-77°C) with little-to-no foam that
is produced to create a latte, mocha, chai latte, and steamed milk
beverage (e.g. hot chocolate).
Foamed Milk
Foamed milk is warm aerated milk 150-160°F (65-71°C) used to create
cappuccinos.
Flavor Adjust 1
This setting reduces the percentage of milk pour time when a beverage
with one flavor is selected. The factory setting of 95 percent is
acceptable in nearly all applications. It is only necessary to adjust this
setting if the flavor timings are set significantly higher than the factory
defaults.
Flavor Adjust 2
This setting is used to reduce the percentage of milk pour time when a
beverage with two flavors is selected. The factory setting of 90 percent
for a large beverage is acceptable in nearly all applications. It is only
necessary to adjust this setting if the flavor timings are set significantly
higher than the factory defaults.
Steam Tank Temperature (General)
The steam tank is always held at the temperature required to produce a
flavored beverage. In most cases, this “standby temperature” is the
steamed milk temperature plus the flavor offset.
If a non-flavored steamed milk beverage is selected, the steam
tank temperature is allowed to drop to the steamed milk
temperature setting before the steam tank heater is activated.
If a non-flavored cappuccino is selected, the steam tank
temperature is allowed to drop to the foamed milk temperature
setting before the steam tank heater is activated.
At the end of the milk production the steam tank returns to the
“standby temperature”.
Steamed Milk Temperature Setting
The default temperature of 241°F (116.1°C) is maintained by the steam
tank during a latte or a steamed milk pour.
Foamed Milk Temperature Setting
The default temperature of 237°F (113.9°C) is maintained by the steam
tank during a cappuccino pour.
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