33
2017/09 Rev. 0.0
OptiFresh (Bean) Touch
EN
3.4 Fresh brew group
The fresh brew group consists of a fresh brew unit [ 4 ] and an drive unit [ 5 ]. The drive unit carries
a DC gear motor with drives the fresh brew unit (Pre)grinded coffee [ 3 ] and hot water [ 4.1 ] are
dispensed onto the permanent filter [ 4.4 ] and are drawn trough the filter by a piston [ 4.5 ] (vacuum).
After the coffee is dispensed to the cup [ 4.6 ] the coffee residue is wiped away by the wiper [ 4.3 ] and
drops into the waste bin. Next sections explain how the unit operates.
Major components
Technical data
Material
1. Bean canister / Fresh brew canister
Content 2,2 kg / 1,8 kg
PC / PE
2. Coffee grinder / canister gear motor
See 3.6 Coffee grinder
3. Coffee guide
st.st. / PE
4. Fresh brew unit
max. 240 ml with 16-20 gram coffee
4.1 Water supply
PSU
4.2 Brewer chamber
PSU
4.3 Wiper
4.4 Permanent filter
37 µm (art.no. 03488) st.st.
4.5 Piston
Teflon
4.6 Coffee outlet
5. Drive unit
See 3.5 Drive unit
3
1
2
4.5
4.1
4.2
4.3
4.6
4
5
M
4.4
1
2
1
3
2
3
4.5
4.1
4.2
4.3
4.6
5
4.4
4
M
