Rheavendors Group Variflex User manual

__________________________________________
www.rheavendors.com
GENERAL USER'S MANUAL
Translation of the original instructions
MAN0000014 rel. 00 dated 03.02.2014
Variflex®coffee brewer
by variable dose

MAN0000014 rel. 00 dated 03.02.2014 page n° 2 of n° 18 pages
www.rheavendors.com tel: [phone] fax: [phone] e mail: [e-mail]
rheavendors group's sole property
Variflex®coffee brewer by
00 03.02.2014 first issue; A4
rel. date description
this document is made available electronically on the www.rheavendors.com site
table of contents
01.
02.
03.
04.
05.
06.
07.
general information
technical data
description
work cycle
components
packing list
software
the a.m. chapters of the manual are intended to describe a
Variflex®coffee brewer
in its hardware components for a complete and fully aware use;
attention
since the Variflex®coffee brewer is an integral part of the vending
machines in which it is installed, it is absolutely necessary to
observe all the instructions for the operators' and users' safety
supplied by the "Vending Machine Installation and Maintenance
manual" of the machine, in which the Variflex®coffee brewer is
installed; see, in particular, the chapters: "preliminary safety
information" and "residual risks";
the range of available options is so large and the technical update
of our vending machines and its components so constant that it
might happen that some detail or function is neither mentioned nor
described herein as expected; in this case do not hesitate to
contact us;
telephone: [phone]
fax: [phone]
e mail: [e-mail]
please, print this manual only if necessary; environmental
protection is our common interest;
page 03
page 04
page 05
page 06
page 08
page 10
page 18

01 general information
presentation:
description:
brewing chamber:
features:
maintenance:
the manufacture of the Variflex®coffee brewer has originated from
the experiences directly acquired by the users of our machines, as
a development of classic coffee brewers; the cup drink quality is
the fundamental parameter that has guided the design of this
coffee brewer, characterised by:
•constant quality dispensing cycle;
•compact and solid structure;
•easy and simple maintenance;
the peculiarity of the Variflex®coffee brewer is represented by the
fact that the brewing chamber volume is automatically adjusted to
the ground coffee quantity to make the best use of the dose; the
interaction between mechanics and software is such that every
single work phase can be actively controlled, which can ensure an
espresso, the top quality of which is constant all over the time,
whereas the doses ejected at the end of the dispensing cycle are
compact, perfectly dry and fully used up; the springs that are
responsible for instability and variability between one cycle and the
other one have been removed from the brewer and all phases have
been conceived to make the best and most homogeneous use of
the dose; ground products are guided as far as the middle of the
brewing chamber in such a way that the dose is compact and
homogeneous during the compressing and brewing cycle;
the Variflex®coffee brewer has been originally designed with a
brewing chamber, the diameter of which is 45 mm; any future
development will provide for chambers having a different diameter,
which means further flexibility in performance;
the reliability of the coffee brewer is obtained by using materials
selected for their specific features: two different steels and an
aluminium alloy represent the metal part of the coffee brewer
whereas the "plastic" part is made of materials widely tested in the
world of vending machines and of innovative materials, such as
PPA, a thermoplastic material that can support high mechanical and
thermal stresses; all components have been designed to ensure full
reliability during work phases;
the coffee brewer mounted on the machine is hit by a heated air
flow that can keep the coffee brewer at such a temperature that no
heat is taken away from the coffee water, without ageing the
components of the coffee brewer too early;
no tool is required to install and uninstall the machine; just click on
a release key to disengage the coffee brewer from its work seat
whereas the assembly, guided by two pins, is ensured by the
simple movement of your hand downwards until you hear a
fastening "click"; no electric part remains on the Variflex®coffee
brewer; no operation is required for the water supply ensured by a
quick coupling that occurs by making the same movement intended
to position the assembly in its work seat;
if removed from the vending machine, the coffee brewer can be
completely dipped in washing tanks; the upper and lower pistons
can be removed with no tools for an easy, rapid and simple
inspection;
no lubrication is required by the Variflex® coffee brewer;
the software conceived at the same time as the Variflex® coffee
brewer enables the operator to program the coffee dose ground
traditionally (time required to activate the grinder), but - as an
alternative - to determine its weight (see 06.);
MAN0000014 rel. 00 dated 03.02.2014 page n° 3 of n° 18 pages
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Variflex®coffee brewer by

02. technical data
dimensions:
weight:
materials:
supplies:
hydraulic:
mechanic:
electric:
brewing chamber:
standards:
miscellaneous:
motor:
heating system:
protection carter:
width:
height:
depth:
- steels with different surface treatments;
- different aluminium alloys;
- technopolymers of the latest generation (half-crystalline
structure, high mechanic performances, continuous operating
temperature 140 °C, dimensional stability on humid work
conditions, …);
-ABS and POM thermoplastics;
quick coupling:
ribbed quick coupling:
none;
a diameter made available for the brewing chamber:
Ø 45 mm for a ground quantity of:
code 025 0014 000CL
the ground quantity shall be considered as indicative because
depending upon variables that can not be determined in advance,
such as the coffee grinding degree;
all the components composing the Variflex®coffee brewer are
suitable for contact with foodstuffs;
even if not belonging to the structure of the Variflex®coffee
brewer, the technical data of the motor, the heating system and
the protection carter are described herein;
the motor that is not an integral part of the Variflex®, coffee brewer
structure is mechanically connected with the lower rear bush of the
trapezoidally threaded screw by means of a toothed belt drive; its
operation depends upon the CPU of the machine, in which the
Variflex®coffee brewer is installed;
power supply;
number of revolutions for the driven shaft:
encoder:
by air blow, controlled by a probe and temperature-programmable
via software:
the Variflex®coffee brewer is covered by a protection carter in the
front; to remove it, just press the side release keys specified by the
arrows; there are two different types of carters:
table top machines (the used dose is ejected on one side):
code 025 0014 007CL
free standing machines (the used dose is dropped for ejection):
code 025 0014 074CL
105 mm;
271 mm;
125 mm;
1,800 gr.;
up to 1.4 MPa;
Ø 8 mm;
8.0 ÷ 15.0 grams;
24 V dc; 3 A max;
840 rev/min;
two pulses/rev.;
24 V dc; 30 W;
length 225 mm;
length 310 mm;
MAN0000014 rel. 00 dated 03.02.2014 page n° 4 of n° 18 pages
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Variflex®coffee brewer by

03. description
slider
brewing chamber
lock lever
upper filter holder
coffee dispensing
nozzle
lower piston
water inlet
ejection brush
water supply
coupling system
trapezoidally
threaded screw
coffee chute
protection carter for
table top
carter release lever
MAN0000014 rel. 00 dated 03.02.2014 page n° 5 of n° 18 pages
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Variflex®coffee brewer by

04. work cycle
dispensing cycle:
1. positioning
2. grinding (*)
3. compression
4. pre-brewing
5. brewing (*)
6. opening
7. ejection
8. re-positioning
a dispensing cycle of the Variflex®coffee brewer consists of the
following phases:
1.positioning
2.grinding (*)
3.compression
4.pre-brewing
5.brewing (*)
6.opening
7.ejection
8.re-positioning
it may happen that some of these phases are not made available in
a vending machine with a special software or that they have been
disabled during programming, just as some special functions are
not represented herein, such as dose drying at the end of the brew
phase;
by properly programming the software parameters, the brewing
chamber can be kept partially engaged by the upper piston during
standby so as to provide for uniform heat diffusion;
if partially engaged by the upper piston, the brewing chamber
lowers down from its standby position so as to enable the coffee
chute to reach the position necessary to pour the ground coffee
inside;
(*) variable value; the Variflex®coffee brewer waits for the grinder
to have completed its work cycle;
after grinding, the coffee brewer motor controls the rotation of the
screw intended to move the brewer body assembly upwards; the
movement stops as soon as the software is informed that the right
chamber closing pressure has been achieved;
the pump turns on to let ca. 1.0 cc. hot water into the brewing
chamber in order to moisten the ground content;
(*) variable value; the Variflex®coffee brewer waits for the
brewing pump to have completed its work cycle;
the nut screw drags the brewer body downwards; the rear bush of
the lower piston rests on the lower part of the coffee brewer
structure by pushing the used dose outside the brewing chamber;
while moving down, the brush removes the used dose - completely
extracted from the brewing chamber - from the coffee brewer;
the lower piston moves up again to touch the upper one; the
brewer body assembly is moved downwards to reach the standby
position of the next ground dose;
positioning
2 sec.
compression
2 sec.
pre-brewing
2 sec.
opening / ejection
3 sec.
re-positioning
4 sec.
brewing
50 cc. 20 sec.
grinding
9 gr. 10 sec.
MAN0000014 rel. 00 dated 03.02.2014 page n° 6 of n° 18 pages
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Variflex®coffee brewer by

43 seconds
as a consequence, the Variflex® coffee brewer requires 13 seconds
to complete a dispensing cycle, excluding the customisable grinding
and brewing time; according to the criteria described above, a cycle
time totals:
coffee brewer time + grinding time (*) + brewing time (*)
13 sec. 10 sec. 20 sec.
as soon as the vending machine is powered on, the Variflex®coffee
brewer software performs a 7-second cycle once only in order to
position the brewer body and establish the exact position of the
brewing chamber;
sequence of phases:
total cycle time:
chamber Ø 45
note:
positioning
2 sec.
compression
2 sec.
pre-brewing
2 sec.
opening / ejection
3 sec.
re-positioning
4 sec.
brewing
50 cc. 20 sec.
grinding
9 gr. 10 sec.
MAN0000014 rel. 00 dated 03.02.2014 page n° 7 of n° 18 pages
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Variflex®coffee brewer by
1. positioning
3. compression
4. pre-brewing
5. brewing
6/7. opening/ejection
8. re-positioning
stand by grinding

the Variflex®coffee brewer is structurally composed of four logic
and functional sub-assemblies and some parts for support; there
are four functional assemblies:
1st 025 0014 005R upper assembly
2nd 025 0014 045R upper piston
3rd 025 0014 020R brewer body
4th 025 0014 012 lower assembly
besides serving as a structure for the coffee brewer with the lower
assembly, the upper assembly includes the coffee chute conveying
the ground product to the brewing chamber and the quick coupling
system for the vending machine; some parts connect it with the
lower assembly, thus forming the coffee brewer;
the upper piston works with the brewer body assembly to form and
keep the ground dose during the brew cycle; an o-ring provides for
sealing against the brewing chamber walls and espresso is
dispensed and conveyed into the cup from the outlet on the top of
its structure;
the brewer body assembly consists of the lower piston, the brewing
chamber and the ejection brush of the used dose; the brewing
chamber that is moved by the nut screw is guided by a shaft
intended for vertical sliding;
the ejection brush of the used dose is moved by a ball inserted into
the guide in the side shoulder;
it opposes the upper assembly by accommodating the ends of the
trapezoidally threaded screw and the cylindrical guide moving and
guiding the brewer body; the rear bush of the lower piston rests on
one of its seats to enable the used dose to protrude from the
brewing chamber for ejection;
05. components
025 0014 005R
upper crosspiece
025 0014 045R
upper filter holder
025 0014 020R
brewer body
025 0014 012
lower crosspiece
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Variflex®coffee brewer by

MAN0000014 rel. 00 dated 03.02.2014 page n° 9 of n° 18 pages
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Variflex®coffee brewer by
page intentionally left
blank

06. Variflex®coffee brewer
025 0014 000CL
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MAN0000014 rel. 00 dated 03.02.2014 page n° 11 of n° 18 pages
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Variflex®coffee brewer by
# 0250014000CL GuppocaffèVariflex®Ø45 Variflex®brewergroupØ45
01 0250014005R Traversasuperiore-*vedipagineseguenti Uppersupport-*seenextpages
02 0250014008 ScivoloØ45
ChuteØ45
03 0250014009 Cavallottoscivolo
Chutehinge
04 VIT0004810 DadoM4autoblocc.A2UNI7473
SelflockingnutM4A2UNI7473
05 VIT0001009 ViteTCBM4x16A4UNI7687
PanheadscrewM4x16A4UNI7687
06 0250014081 Mollad0,63Dm5L3014,5Sp. Springd0,63Dm5L3014,5Sp.
07 GUA0011022 TappoascattoPGM12F15,9H6,5 PlugPGM12F15,9H6,5
08 VIT0000249 ViteTEM6x16A2UNI5739
Hexheadscrew M6x16A2UNI5739
09 VIT0003113 Roset.vent.-E-6,4A2DIN6798
Springwasher-E-6,4A2DIN6798
10 0250014079 RosettaD15d6.5Sp.1.5
WasherD15d6.5Sp.1.5
11 VIT0009112 DadoM410x10x4,5A2
NutM410x10x4,5A2
12 0250014020R CameraØ45assieme-*vedipagineseguenti
Ø45Chamberassembly-*seenextpages
13 0250014043 GuarnizionespazzolaØ45 BrushgasketØ45
14 0250014025 SferaSpazzola Brushball
15 0250014024 SpazzolaØ45 BrushØ45
16 0250014026 PernoSpazzola Brushpin
17 VIT0000043 ViteTCBM5x35A4DIN7985 PanheadscrewM5x35A4DIN7985
18 VIT0004823 DadoM5Autoblocc.A2UNI7473 SelflockingnutM5A2UNI7473
19 0250014028R CursoreØ45-*vedipagineseguenti ChamberØ45-*seenextpages
20 0250014028 PortaFiltroInf.Ø45 LowerfiltersuppportØ45
21 GUA0000097 OR4131Silicone OR4131Silicone
22 0250014029 DocciaFiltroØ37,3-350 FilterbrewerØ37,3-350
23 VIT0000121 ViteTSPM3x8A2UNI7688 CountersunkscrewM3X8UNI7688
24 VIT0009203 InsertotermoplasticaM3C5
ThermoplasticinsertM3C5
25 0250014027 BloccoPistoneInferiore Pistonlowerlocking
26 GUA0000103 OR3075Silicone OR3075Silicone
27 0250014013 Guidacilindrica
Cylindricshaft
28 0250014012R Traversainferiore-*vedipagineseguenti
Lowerbracket-*seenextpages
29 0250014077 RasamentoviteTR SpacerTRscrew
30 VIT0009320 CuscinettoSKF608-2RSH BallbearingSKF608-2RSH
31 0250014011 Piastracammaposteriore
Rearplate
32 0250014072 Pernoguidasuperioregr.varif
Upperguidepin
33 VIT0001006 ViteTCBM4x30 A2 DIN7985
PanheadscrewM4x30 A2 DIN7985
34 VIT0000033 ViteTCBM4x35 A2 DIN7985
PanheadscrewM4x35 A2 DIN7985
35 VIT0001011 ViteTCBM4x20 A4 DIN7687
PanheadscrewM4x20 A4 DIN7687
36 0250014019 Piastrafrontale
Frontplate
37 VIT0001009 ViteTCBM4x16A4UNI7687
PanheadscrewM4x16A4UNI7687
38 0250014045R portafiltrosuperioreØ45assieme-*
Ø45upperfiltersupportassembly-*
39 0250014047 ProtezionepistoneØ45 UpperfilterprotectionØ45
40 0250008211 DocciafiltroØ37,3-190 FilterBrewerØ37,3-190
41 VIT0000129 ViteTSCCr.M3x12A2DIN966
ScrewheadCount.sunkM3x12A2DIN966
42 GUA0000045 OR108Viton OR108Viton
43 GUA0000067 OR4143Silicone70ShRosso OR4143Silicone70ShRed
44 0250014085 Innestomaschio
Maleconnection
45 GUA0000004 OR104
OR104
46 TTEF02/04T Tubo-PTFE-aliment.cl.806d.2x4
Hose-PTFE-food.cl.806d.2x4
47 0250014086 DadotuboH2O
HosenutH20
48 GUA0000061 OR2010viton
OR2010viton
49 1010100160 Eti.avvertenzagruppovariflex
Warninglabelvariflexgroup
50 TSIL04/06T Tubosiliconetrasp.Naturaled.4x6
d.4x6naturaltransparentsiliconehose
51 0020039539 Tubettoprodottod.4
Spoutdeliverid.4
52 0250014006 Traversasuperiore Uppersupport
53 0100002014 AnellodiserraggioSO1-4MES LockringS01-4MES
54 0250014071 DadoCh.17M8 NutCh.17M8
55 VIT0007011 GranoM4x4UNI5927-67 SetscrewM4x4UNI5927-67
56 GUA0001007 V-ringVA16 V-ringVA16
57 VIT0009318 RallaAS0821 CenterplateAS0821
58 VIT0009317 CuscinettorulliniAXK0821 RollerbearingAXK0821
59 0250014082 Tastobloccogruppo Grouplockingkey
60 VIT0002009 Viteaut.TCB3,5x6,5s/punta
Panheadself-tappingscrew3,5x6,5
61 VIT0009320 CuscinettoSKF608-2RSH BallbearingSKF608-2RSH
62 0250014016 ViteTR14x4Z1DX ScrewTR14x4Z1DX
63 0250014022 CursoreØ45Nero ChamberØ45Black
64 0250014021 FlangiaO-Ringstelo FlangeO-Ringrod
65 VIT0002120 ViteTS3x6Torx9A2Plast.6L ScrewCountersunk3x6Torx9A2Pl.6L
66 0250014017 MadreviteTR14 WormscrewTR14
67 0250014018 BloccoMadrevite Wormscrewlocking
68 VIT0002124 ViteTC3,5x12A2Plast.Pozi Panhead3,5x12A2Plast.Pozi
69 0250014014 BoccolaAlberoGuidaSup.Nera Shaftupperguidebush
70 0250014023 BoccolaAlberoGuidaInf.Nera Shaftlowerguidebush
71 0100001104 GomitoCompattoM.Girev.4-1/8 TurningelbowfittingM.4-1/8
72 0250014012 Traversainferiore Lowerbracket
73 0250014046 Portafiltrosup.Ø45Nero UpperfiltersupportØ45black
74 VIT0007038 GranoM4x8A4UNI5927-67
SetscrewsM4x8A4UNI5927-67

upper crosspiece
(Ø 45 mm)
025 0014 005R
#0250014005R Traversa superiore Ø45 assieme
Upper support assembly Ø45
52 0250014006 Traversa superiore Upper support
02 0250014008 Scivolo Ø45
Chute Ø45
03 0250014009 Cavallotto scivolo
Chute hinge
04 VIT0004810 Dado M4 autoblocc. A2 UNI7473
Selflocking nut M4 A2 UNI7473
05 VIT0001009 Vite TCB M4x16 A4 UNI7687
Pan head screw M4x16 A4 UNI7687
57 VIT0009318 Ralla AS0821 Center plate AS0821
58 VIT0009317 Cuscinetto rullini AXK 0821 Roller bearing AXK 0821
61 VIT0009320 Cuscinetto SKF 608-2RSH Ball bearing SKF 608-2RSH
29 0250014077 Rasamento vite TR Spacer TR screw
62 0250014016 Vite TR 14x4 Z1 DX Screw TR 14x4 Z1 DX
54 0250014071 Dado Ch.17 M8 Nut Ch.17 M8
56 GUA0001007 V-ring VA16 V-ring VA16
55 VIT0007011 Grano M4x4 UNI5927-67 Set screw M4x4 UNI5927-67
59 0250014082 Tasto blocco gruppo Group locking key
06 0250014081 Molla d0,63 Dm5 L30 14,5Sp. Spring d0,63 Dm5 L30 14,5Sp.
60 VIT0002009 Vite aut. TCB 3,5x6,5 s/punta
Pan head self-tapping screw 3,5x6,5
07 GUA0011022 Tappo a scatto PGM12 F15,9 H6,5 Plug PGM12 F15,9 H6,5
#0250014000CL Guppo caffè Variflex® Ø45 Variflex® brewer group Ø45
08 VIT0000249 Vite TE M6x16 A2 UNI5739 Hex head screw M6x16 A2 UNI5739
09 VIT0003113 Roset.vent. -E- 6,4 A2 DIN6798
Spring washer -E- 6,4 A2 DIN6798
10 0250014079 Rosetta D15 d6.5 Sp.1.5
Washer D15 d6.5 Sp.1.5
11 VIT0009112 Dado M4 10x10x4,5 A2
Nut M4 10x10x4,5 A2
01
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Variflex®coffee brewer by

upper filter holder
(Ø 45 mm)
025 0014 045R
025008176CL4
38
MAN0000014 rel. 00 dated 03.02.2014 page n° 13 of n° 18 pages
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Variflex®coffee brewer by
#0250014045R porta filtro superiore Ø45 assieme
Ø45 upper filter support assembly
73 0250014046 Porta filtro sup. Ø45 Nero Upper filter support Ø45 black
24 VIT0009203 Inserto termoplastica M3 C5
Thermoplastic insert M3 C5
40 0250008211 Doccia filtro Ø37,3-190 Filter Brewer Ø37,3-190
41 VIT0000129 Vite TSC Cr. M3x12 A2 DIN966
Screw head Count.sunk M3x12 A2
43 GUA0000067 OR 4143 Silicone 70Sh Rosso OR 4143 Silicone 70Sh Red
42 GUA0000045 OR 108 Viton OR 108 Viton
74 VIT0007038 Grano M4x8 A4 UNI5927-67
Set screws M4x8 A4 UNI5927-67
39 0250014047 Protezione pistone Ø45 Upper filter protection Ø45
#0250008176CL4 Tubo uscita caffè assieme
Outlet coffè hose assembly
50 TSIL04/06T Tubo silicone trasp. Naturale d.4x6 d.4x6 natural transparent silicone hose
51 0020039539 Tubetto prodotto d.4
Spout deliveri d.4

chamber
(Ø 45 mm)
025 0014 020R
12
MAN0000014 rel. 00 dated 03.02.2014 page n° 14 of n° 18 pages
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Variflex®coffee brewer by
#0250014020R Cursore Ø45 assieme
Chamber Ø45 assembly
63 0250014022 Cursore Ø45 Nero Chamber Ø45 Black
64 0250014021 Flangia O-Ring stelo Flange O-Ring rod
65 VIT0002120 Vite TS 3x6 Torx 9 A2 Plast.6L Screw Countersunk 3x6 Torx9 A2 Pl.6L
26 GUA0000103 OR 3075 Silicone OR 3075 Silicone
15 0250014024 Spazzola Ø45 Brush Ø45
13 0250014043 Guarnizione spazzola Ø45 Brush gasket Ø45
14 0250014025 Sfera Spazzola Brush ball
16 0250014026 Perno Spazzola Brush pin
17 VIT0000043 Vite TCB M5x35 A4 DIN7985 Pan head screw M5x35 A4 DIN7985
18 VIT0004823 Dado M5 Autoblocc. A2 UNI7473 Self locking nut M5 A2 UNI7473
66 0250014017 Madrevite TR14 Worm screw TR14
67 0250014018 Blocco Madrevite Worm screw locking
68 VIT0002124 Vite TC 3,5x12 A2 Plast. Pozi Pan head 3,5x12 A2 Plast. Pozi
69 0250014014 Boccola Albero Guida Sup. Nera Shaft upper guide bush
70 0250014023 Boccola Albero Guida Inf. Nera Shaft lower guide bush
71 0100001104 Gomito Compatto M. Girev. 4-1/8 Turning elbow fitting M. 4-1/8
20 0250014028 Porta Filtro Inf. Ø45 Lower filter suppport Ø45
21 GUA0000097 OR 4131 Silicone OR 4131 Silicone
22 0250014029 Doccia Filtro Ø37,3-350 Filter brewer Ø37,3-350
24 VIT0009203 Inserto per termoplastica M3 C5 Thermoplastic insert M3 C5
23 VIT0000121 Vite TSP M3x8 A2 UNI7688 Countersunk screw M3X8 UNI7688
25 0250014027 Blocco Pistone Inferiore Piston lower locking

slider
(Ø 45 mm)
025 0014 028R
#0250014028R Cursore Ø45 assieme
Chamber Ø45 assembly
26 GUA0000103 OR 3075 Silicone OR 3075 Silicone
20 0250014028 Porta Filtro Inf. Ø45 Lower filter suppport Ø45
21 GUA0000097 OR 4131 Silicone OR 4131 Silicone
22 0250014029 Doccia Filtro Ø37,3-350 Filter brewer Ø37,3-350
24 VIT0009203 Inserto per termoplastica M3 C5 Thermoplastic insert M3 C5
23 VIT0000121 Vite TSP M3x8 A2 UNI7688 Countersunk screw M3X8 UNI7688
25 0250014027 Blocco Pistone Inferiore Piston lower locking
19
MAN0000014 rel. 00 dated 03.02.2014 page n° 15 of n° 18 pages
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Variflex®coffee brewer by

72 0250014012 Traversa inferiore Lower bracket
29 0250014077 Rasamento vite TR
Spacer TR screw
30 VIT0009320 Cuscinetto SKF 608-2RSH Ball bearing SKF 608-2RSH
lower crosspiece
(Ø 45 mm)
025 0014 012R
28
MAN0000014 rel. 00 dated 03.02.2014 page n° 16 of n° 18 pages
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Variflex®coffee brewer by

#0250014000CL
Guppo caffè Variflex® Ø45 Variflex® brewer group Ø45
08 VIT0000249 Vite TE M6x16 A2 UNI5739
Hex head screw M6x16 A2 UNI5739
09 VIT0003113 Roset.vent. -E- 6,4 A2 DIN6798
Spring washer -E- 6,4 A2 DIN6798
10 0250014079 Rosetta D15 d6.5 Sp.1.5
Washer D15 d6.5 Sp.1.5
11 VIT0009112 Dado M4 10x10x4,5 A2
Nut M4 10x10x4,5 A2
27 0250014013 Guida cilindrica
Cylindric shaft
31 0250014011 Piastra camma posteriore
Rear plate
32 0250014072 Perno guida superiore gr. varif
Upper guide pin
33 VIT0001006 Vite TCB M4x30 A2 DIN7985
Pan head screw M4x30 A2 DIN7985
34 VIT0000033 Vite TCB M4x35 A2 DIN7985
Pan head screw M4x35 A2 DIN7985
35 VIT0001011 Vite TCB M4x20 A4 DIN7687
Pan head screw M4x20 A4 DIN7687
11 VIT0009112 Dado M4 10x10x4,5 A2
Nut M4 10x10x4,5 A2
36 0250014019 Piastra frontale
Front plate
37 VIT0001009 Vite TCB M4x16 A4 UNI7687
Pan head screw M4x16 A4 UNI7687
47 0250014086 Dado tubo H2O
Hose nut H20
44 0250014085 Innesto maschio
Male connection
45 GUA0000004 OR 104
OR 104
49 1010100160 Eti. avvertenza gruppo variflex
Warning label variflex group
#0250014086CL1 Tubo piastra/cursore gr. Variflex®
Hose plate/chamber Variflex® brewer
46 TTEF02/04T Tubo -PTFE- aliment .cl.806 d.2x4
Hose -PTFE- food .cl.806 d.2x4
47 0250014086 Dado tubo H2O
Hose nut H20
53 0100002014 Anello di serraggio SO1-4 MES
Lock ring S01-4 MES
48 GUA0000061 OR 2010 viton
OR 2010 viton
Variflex®coffee brewer
(Ø 45 mm)
025 0014 000CL
0250014086CL1
MAN0000014 rel. 00 dated 03.02.2014 page n° 17 of n° 18 pages
www.rheavendors.com tel: [phone] fax: [phone] e mail: [e-mail]
rheavendors group's sole property
Variflex®coffee brewer by

PROGRAMMING------
-VAR. BREWER --
BREWER DIAMETER
0=36 1=45 01
BREWER POSITION
0=CLOSE 1=OP. 01
Autom. Adjustement
f.Tuning 1=yes 0
CALIBRAT. BREWER
SEL >PROG< 0.0
REMOVE BREWER
AND PRESS >PROG<
readed grams 4=+
5=-1=ok: 20
REINSTALL BREWER
AND PRESS >PROG<
07. software
grams-seconds
execution of calibration
the Variflex® coffee brewer fulfils its task slaved to the software
installed on the machine; since the application is all-purpose, there
are many resident software parameters that can be programmed
by the operator even if some functions are always made available
any way (see the Installation and Maintenance manual supplied
with the specific vending machine); some of these variables are
described herein for guidance;
the chapter where you can programme the settings of the Variflex®
coffee brewer is supplied by PROGRAMMING;
to set the diameter of the coffee brewer installed in the machine;
it decides whether to keep the brewing chamber of the coffee
brewer inserted in the upper piston (closed) or not in standby;
it enables the time calibration of the grinding wheel;
the Variflex®coffee brewer and the software architecture enable
the operator to programme the ground coffee doses not only by
regulating the grinder work time, but also to programme the
quantities expressed in grams;
to carry out this procedure, it is absolutely necessary to have:
- a canister (cup) to collect ground coffee doses;
- a 50 gr scale (d = 0.01 gram);
before starting the calibration cycle, weigh the canister (cup) that
will collect the ground product;
select the item;
remove the variable assembly;
re-position the coffee conveyor and arrange the cup to collect the
ground product;
press PROG; the machine performs two grinding cycles;
the ground product shall weigh 20 grams; if it is true, press key
“1”; if not, set the weighed quantity by acting on keys “4” and “5”
to vary the display digits down on the right; at the end, press key
“1” (never forget to subtract the weight of the empty cup);
when the display shows, re-insert the coffee brewer and
reassemble all components of the machine (coffee conveyor,
carter, waste tray, ...) and press PROG;
the machine will store all the data you have entered; wait for this
automatic cycle to come to an end, including power on and off,
without acting manually; wait for the display to show the specific
standby messages of the vending machine;
as already said, in each recipe including coffee beans, the dose will
be expressed in ground grams and the machine will balance any
dose variation while keeping quality constant; the natural wear of
grinding wheels that tends to reduce the coffee quantity poured
into the coffee brewer will be automatically balanced without any
external action;
MAN0000014 rel. 00 dated 03.02.2014 page n° 18 of n° 18 pages
www.rheavendors.com tel: [phone] fax: [phone] e mail: [e-mail]
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Variflex®coffee brewer by