Description of the machine
17
Brave 30 ES- Brave 60 ES - Brave 90 ES
3.4 Operating principle
The machine consists of a cooling unit and a hydraulic
unit. The cooling unit cools the water in the insulating
tank, thanks to an evaporator (
A
) immersed in the tank
itself.
The water in the insulating tank acts merely as a means
of heat exchange between the coils and the evaporator.
The evaporator is cooled until its temperature is lower
than zero, so a layer of ice (the "ice bank") then forms
around it; this is in practice a cold reserve, to be used
when consumption levels increase.
The thickness of the ice bank is controlled by the energy
saving control unit (
B
), which starts and stops the
compressor (
C
) as necessary.
The coils (that the water and syrups pass through) are
immersed in the water in the tank.
The water in the tank is always kept moving thanks to a
stirrer (
D
); this facilitates the heat exchange between the
coils and the ice bank.
The water and syrups pass through different coils, and
never come into contact with each other inside the
machine: the mixing of water and syrup takes place in the
spout of the dispensing valve, located in the dispensing
tower (not included).
The syrup is contained in a bag-in-box, or in steel kegs
(outside the machine).
The condenser (
E
) eliminates the heat taken from the
water and generated by the compressor motor.
For more effective heat dispersal, the condenser has a
cooling fan unit.
It is important not to obstruct the condenser surface, and
regularly inspect it for dirt so it can always function well (see
6.7 - "Cleaning the condenser").
In order to operate well, the machine must be
continuously powered; switching off the pump-stirrer
motor, or the machine itself, during brief periods of non-
use will jeopardise both the machine's lifespan and the
quality of the first drinks subsequently dispensed. What's
more, the machine consumes much more energy to
restore the ice bank than to maintain it, so you are
advised to leave the machine switched on during the
night and during any brief periods of non-use.
BR0050
BR0060
C
A
D
BR0080
B
E
