Zubler FZ2 VARIOmatic User manual

Operating Instructions FZ2 VARIOmaticStatus 04/98 FZ2_9804E.DOC Page 1
___
Gerätebau GmbH
FZ2 VARIOmatic
Operating Instructions
Zubler Gerätebau GmbH
Buchbrunnenweg 26, D-89081 Ulm
Tel. [phone], Fax [phone]

FZ2 VARIOmaticFZ2_9904E.DOC
4 -Position -Vacuum system Page 2
Gerätebau GmbH, Buchbrunnenweg 26, D-89081 Ulm Jungingen, Tel.: ++49 731 1452-0 Fax: -13
EG-Conformity declaration
We, Zubler Gerätebau GmbH
Buchbrunnenweg 26
89081 Ulm Jungingen
declare, that the product Dust Vacuum -System
FZ 2 VARIOmatic®
corresponds to the regulations of the following
directives in regard to protective requirements
89/336/EWG EMV-Directive
73/23/EWG Low-voltage Directive
93/68/EWG CE-Sign
89/392/EWG Directive machines
Any modification not specifically approved by us
voids the validity of this declaration.
Kurt Zubler
Managing Director
Dear customer !
We are happy that you have decided to purchase a Zubler vacuum system and we hope you enjoy working with this
instrument. The FZ2 VARIOmaticis especially quiet and long-lived because we use three-phase turbines without
carbon brushes. A powerful filter system with a large area, combined with an automatic air capacity control, allows very
economical operation with low energy consumption. It is equally suitable for daily professional use or jobs with high dirt
accumulations.
The constant developement of our technology is based on cooperative work with experienced dental technicians. Our main
target is to create a quieter and more comfortable vacuum technology. Performance and economy are always basic
requirements.
Note!
These operating instructions do not contain a description of installation. Its premise is that the vacuum system has already
been installed and connected in your laboratory by experienced personnel. This is only required initially. Since the
installation work can sometimes be very complex, and the customer can seldom do it himself, there is a separate set of
instructions which is available to the dental commercial companies. It is only given out when required.
Claims cannot be made because of the drawings and technical descriptions. We reserve the right to make changes and
improvements, with or without corrections to these instructions.

FZ2 VARIOmaticFZ2_9904E.DOC
4 -Position -Vacuum system Page 3
Gerätebau GmbH, Buchbrunnenweg 26, D-89081 Ulm Jungingen, Tel.: ++49 731 1452-0 Fax: -13
Table of contents Page
1.
Table of contents
3
2.
Accessories
4
3.
Starting operation
5
Switching on
Start blocking
Switching off
4.
Using the vacuum outlet
6
Maximum-Function
5.
Maintenance
7
Emptying dirt container
Filter change
Exchanging a vacuum port opener
6.
Adjustment of the vacuum system
11
Basic settings
Vacuum power
Cleaning interval
Dirt container -Check
Maximum-Lock release
Maximal operation for instrument
7.
Adjustment of sensitivity
14
Basic settings
Exact Tuning
Window
Damping
Lag time
8.
Functional faults
16
9.
Technical data
20
Overview sheet of adjustments

FZ2 VARIOmaticFZ2_9904E.DOC
4 -Position -Vacuum system Page 4
Gerätebau GmbH, Buchbrunnenweg 26, D-89081 Ulm Jungingen, Tel.: ++49 731 1452-0 Fax: -13
2. Accessories
Vacuum solutions are determined by many factors. The
vacuum machine is normally not responsible for air noises of
the vacuum system. All system parts must be optimally
matched with each other. The smallest air inlet noise,
effective use of the air capacity and the best possible dirt
acquisition, are as equally important as the quality
characteristics of the vacuum machine.
For hand nozzle work stations, we recommend only the use
of a modern vacuum system and the installation of noise
dampers. We offer the corresponding accessories in our
program.
R 1200 Vacuum funnel
N° 825/241
R 1000 Rectangular pipe
N° 570/065
R 1100 Noise damper for rectangular pipe
N° 825/261
R 1101 Round noise damper L = 270 mm
N° 825/282
R 1102 Round noise damper L = 350 mm
N°825/260

FZ2 VARIOmaticFZ2_9904E.DOC
4 -Position -Vacuum system Page 5
Gerätebau GmbH, Buchbrunnenweg 26, D-89081 Ulm Jungingen, Tel.: ++49 731 1452-0 Fax: -13
Operating elements
1 Mains switch ON „I“ Off „0“
2 Button for Maximum
3 LED Maximum
4 LED Container
5 LED Service
3. Starting operation
Switching on the vacuum system
Turn on the mains switch (1) on the vacuum.
It is possible to leave the mains switch of the vacuum system
in the on position, and perform the switching via the central
voltage supply (laboratory main switch).
Mains switch (1) glows green.
After being switched on, the vacuum system first conducts a
self-test. One after another, all internally connected vacuum
paths are checked with maximum vacuum performance.
Then the filter cartridge is cleaned off.
This operation takes approx. 2 minutes.
The vacuum system is now operational ready. The
connected instruments receive mains voltage.
Start blockade (blinking LED Service (5)
The vacuum system does not start and waits, if:
1. the required pressure of min. 5 bar is not present at the
compressed air connection,
2. the Timer for controlling the dirt container has run out,
(see Chapter 5)
3. a vacuum position opener is not closed because an
instrument on an external vacuum position is switched on
or a manual switch is in the ON position (vacuum).
Switching off the vacuum system
The vacuum system can be switched off by the central
laboratory switch or the built-in mains switch.
Note:
Connected instruments and technical machines can remain
switched on and they will also be without power when the
vacuum system is switched off.

FZ2 VARIOmaticFZ2_9904E.DOC
4 -Position -Vacuum system Page 6
Gerätebau GmbH, Buchbrunnenweg 26, D-89081 Ulm Jungingen, Tel.: ++49 731 1452-0 Fax: -13
4. Use of the vacuum outlet
The vacuum outlet has been foreseen in order to clean the
surrounding working area and the laboratory floor.
Any vacuum cleaner hose with a connecting piece of 40mm
outside diameter can be used. Special solutions, with longer
hose lengths of high quality, are available from our
accessories program.
The vacuum system switchs itself on as soon as the lid of
the vacuum outlet has been opened.
Maximum -Function
The Maximum -Function works only when the vacuum outlet
is being used. The control operation of the vacuum system
is switched off and a higher under-pressure is created
(vacuum cleaner -principle).
The Maximum -Function is activated with the push of a
button (2). LED Maximum (3) lights.
Pushing the button (2) again, deactivates the Maximum-
Function.
Note:
The activated Maximum -Function (LED 3) does not have an
effect on the vacuum operation at the individual vacuum
stations ! As long as even one of the vacuum stations of the
work areas is active, the Maximum -Function remains
inactive for the vacuum outlet.
If the Maximum operation is to be allowed for the vacuum
stations of the work areas, the blocking function must be
released (see Part 6).

FZ2 VARIOmaticFZ2_9904E.DOC
4 -Position -Vacuum system Page 7
Gerätebau GmbH, Buchbrunnenweg 26, D-89081 Ulm Jungingen, Tel.: ++49 731 1452-0 Fax: -13
5. Maintenance
Checking the dirt container
When the dirt container requires checking, the LED,
Container (4) blinks. Start will be blocked at the next
switching on of the vacuum system. ( LED Container (4) and
LED Service (5) blink at the same time. Vacuum system
does not start.)
Note
A check of the container is necessary after each sequence of
a Timer. The adjustment of various time intervals can be
read in Chapter 6, „Adjustments of the vacuum system.
Dirt container removal and replacement
1. leave the vacuum system switched on
2. take the front cover off
3. release the clamp strap
4. pull the container out and empty it
5. push the container in to the limit stop
6. push the clamp strap upwards (only until limit stop on the
handle !). The LED Container (4) goes out. The LED
Service (5) continues blinking
7. replace the front cover
8. turn the mains switch (1) off and then on again
9. wait for the operational readiness of the vacuum system
(approx. 2 min)
Emptying not necessary
If emptying is not necessary, perform the above without
steps 4 and 5. When the clamp strap is released, the Timer
is reset to 0 and the next check will be due after the new
cycle of the set time interval..
Lengthening the time interval should be carefully considered
since a check takes very little effort and can prevent an over-
fill.

FZ2 VARIOmaticFZ2_9904E.DOC
4 -Position -Vacuum system Page 8
Gerätebau GmbH, Buchbrunnenweg 26, D-89081 Ulm Jungingen, Tel.: ++49 731 1452-0 Fax: -13
Filter change
The filter cartridge of the vacuum system is a long-term filter
which retains its filtering ability for several months or even
years depending on the amount of dirt accumulated.
We recommend to replace the protective flat-filter when
replacing the filter cartridge.
Attention !
Filter changing should only be performed by trained
personnel !
If declining vacuum power or other reasons raise the
suspicion that there is a filter problem, a telephone
consultation is necessary before loosening or removing
the filter.
Removing the filter cartridge
1. switch off the vacuum system
2. block the compressed air or remove the vacuum system
from the compressed air supply
3. take out the dirt container (as described in Part 5 „Check
dirt container“)
4. take the sheet metal cover out. Loosen 2 screws to do
this (see drawing)
5. remove air container transport protector
6. Take out the air drums by loosening the quick-release
coupling

FZ2 VARIOmaticFZ2_9904E.DOC
4 -Position -Vacuum system Page 9
Gerätebau GmbH, Buchbrunnenweg 26, D-89081 Ulm Jungingen, Tel.: ++49 731 1452-0 Fax: -13
7. unscrew the grip screw below the filter cartridge while
firmly holding the filter cartridge.
8. pull the filter cartridge downwards while holding the
clamping strap upwards or unhinging it.
Replacing the filter cartridge
Attention must be paid that there is a central seating
when replacing the filter !
After replacement, turn the cartridge lightly on the
threaded rod in order to guarantee the correct seating.
Then tightly fasten the gripping screw.
Replacement is similar to removal except in the reverse
order (please see steps 1-8).
Replacing the protective flat-filter
The FZ2 is equipped with an additional flat-filter which is
protecting the motors from being polluted in case of a wrong
inserted or broken filter cartridge.
We recommend to replace this filter when replacing the filter
cartridge.
1. Remove the rubber plated cover by unscrewing the
screws to get acces to the flat-filter.
2. Remove the flat-filter by pulling it upwards.
3. Insert a new flat-filter and press the filter tight into the
frame.
4. Ensure that there is no gap or leak where dust could
bypass the filter.
5. Close the front cover again and tighten the screws.

FZ2 VARIOmaticFZ2_9904E.DOC
4 -Position -Vacuum system Page 10
Gerätebau GmbH, Buchbrunnenweg 26, D-89081 Ulm Jungingen, Tel.: ++49 731 1452-0 Fax: -13
Exchanging a vacuum port opener
The vacuum stations of a vacuum system are opened and
closed with a pneumatically operated rubber membrane.
These are subject to a lot of stress. After a few 100,000
loading cycles, cracks can appear in even high quality rubber
materials. In this case, the vacuum station does not close
any more and it blows compressed air into the vacuum lines.
The vacuum port openers are plug-type components and are
found in the intake pipes on the back side of the instrument
(picture at left).
With additional vacuum stations and some special
installations, some of the valves can be found within the
vacuum lines to the work station. (picture at right).
1. switch off the vacuum system.
2. In order to determine which valve is defective, follow the
hose from defective work station to the vacuum system.
3. loosen vacuum hose (left picture)
4. loosen the white PA -compressed air hose by turning
back the nipple cap (right picture)
5. remove valve (lower picture)
6. replace with new valve
7. push the white PA -compressed air hose in until the limit
stop (you must overcome a light resistive pressure)
8. connect vacuum hose
9. switch on the vacuum system