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DAC
Service manual
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User manual
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Sirona DAC User manual

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Sirona Dental Systems GmbH Operating Instructions DAC PROFESSIONAL
2 D 3554.201.01.03.02
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Sirona Dental Systems GmbH Operating Instructions DAC PROFESSIONAL
Contents
1 Warning and safety information ................................................................................ 7
2 Electromagnetic compatibility ................................................................................... 12
3 System description ..................................................................................................... 14
3.1 Device views..................................................................................................................................... 14
4 Technical data ............................................................................................................. 15
4.1 Primary technical data ...................................................................................................................... 15
4.2 Capacity / weights............................................................................................................................. 15
4.3 Operating media ............................................................................................................................... 15
4.4 Operating parameters....................................................................................................................... 15
4.5 Installation examplel ......................................................................................................................... 16
5 Control panel ............................................................................................................... 17
6 Performance features of unit ..................................................................................... 18
6.1 Preliminary air removal by subatmospheric pulsing ......................................................................... 18
6.2 Sterilization categories...................................................................................................................... 18
6.3 Separate steam generation .............................................................................................................. 18
6.4 One-way system / conductivity measurement / water supply ........................................................... 18
6.5 Electronic parameter control............................................................................................................. 19
6.6 Vacuum drying.................................................................................................................................. 19
6.7 Preheating ........................................................................................................................................ 19
6.8 Documentation of batch results ........................................................................................................ 19
7 Installation ................................................................................................................... 20
7.1 Installation requirements................................................................................................................... 20
7.2 Transport straps................................................................................................................................ 21
7.3 Alignment.......................................................................................................................................... 21
7.4 Power supply connection.................................................................................................................. 21
7.5 Outlet connection for one-way water ................................................................................................ 21
7.6 Internal water supply with feed water ............................................................................................... 21
7.7 Water treatment system.................................................................................................................... 22
7.8 Emptying the water storage tank ...................................................................................................... 22
8 Startup.......................................................................................................................... 23
8.1 Printer connection and initialization (optional) .................................................................................. 23
8.2 Vacuum test...................................................................................................................................... 23
8.3 Test run............................................................................................................................................. 24
8.4 Installation log................................................................................................................................... 25
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Sirona Dental Systems GmbH Operating Instructions DAC PROFESSIONAL
9 For each sterilization cycle ........................................................................................ 26
9.1 Operating media .............................................................................................................................. 26
9.2 Preparation of instruments............................................................................................................... 27
9.3 Loading the autoclave ...................................................................................................................... 28
9.4 Closing the door............................................................................................................................... 30
9.5 Program selection ............................................................................................................................ 30
9.6 Program start ................................................................................................................................... 31
9.7 Program cycle .................................................................................................................................. 32
9.8 Record printout ................................................................................................................................ 34
9.9 Removing the sterilized items .......................................................................................................... 35
9.10 Sterile storage.................................................................................................................................. 35
9.11 Sterilization frequency / interval periods .......................................................................................... 36
9.12 Manual abort of the program............................................................................................................ 36
9.12.1 Interruption of sterilization................................................................................................. 36
9.12.2 Abort of drying................................................................................................................... 37
9.13 Response in case of warnings and error messages ........................................................................ 39
9.14 Periods of disuse ............................................................................................................................. 39
10 Putting the autoclave out of operation / transport / putting the autoclave back into
operation...................................................................................................................... 40
11 Special functions ........................................................................................................ 41
11.1 Display of water quality (conductivity) / preheating temperature of chamber .................................. 41
11.2 Selection of additional drying ........................................................................................................... 41
11.3 Logging/Documentation of batch results.......................................................................................... 42
11.3.1 Output of records .............................................................................................................. 42
11.3.2 Connection to a computer ................................................................................................. 44
11.3.3 Immediate printout yes/no................................................................................................. 44
11.4 Setting the date and time ................................................................................................................. 49
11.5 Automatic preheating....................................................................................................................... 50
11.6 Total cycle counter........................................................................................................................... 51
11.7 Feed water supply............................................................................................................................ 52
11.8 Program modifications ..................................................................................................................... 53
12 Operating errors/ Malfunctions.................................................................................. 54
12.1 What do do in case of malfunctions ................................................................................................. 54
12.2 Malfunctions without an error message ........................................................................................... 54
12.2.1 Empty display window....................................................................................................... 54
12.2.2 The autoclave uses too much feed water ......................................................................... 54
12.2.3 Poor drying........................................................................................................................ 55
12.3 Warning messages .......................................................................................................................... 56
12.4 Error messages................................................................................................................................ 58
13 Preserving the value of this device ........................................................................... 63
13.1 Preparation of instruments............................................................................................................... 63
13.2 Rust formation = drag-in rust ........................................................................................................... 64
13.3 Regular care of the DAC Professional ............................................................................................. 64
13.4 Functional testing of the autoclave .................................................................................................. 66
14 Appendix...................................................................................................................... 68
14.1 Drying instructions ........................................................................................................................... 68
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Dear Customer,
Thank you for purchasing the DAC PROFESSIONAL class B sterilizer from Sirona. This autoclave corresponds to the requirements of all valid safety standards. The manufacturer has checked the unit using the parameters for sterilization with the unit properly loaded.
It is extremely important to read the following Operating Instructions very carefully prior to startup, since improper use may impair the sterilization effect considerably.
Thank you for your trust in us.
Your Hygiene Team
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Sirona Dental Systems GmbH Operating Instructions DAC PROFESSIONAL
Maintenance of the unit’s operational reliability
and value depend on:
1. Correct processing of the instruments being sterilized
2. Careful care of the unit
3. The use of high-quality feed water
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1 Warning and safety information

Retention of documentation It is very important to make sure that this manual is
stored together with the unit so that it will also be available at any time in the future. In case the unit is sold or the right to use it is transferred to a different owner, make sure that the manual always remains located near the unit. This is necessary to ensure that the new owner can use the unit properly and has all required information.
Read carefully before starting! These instructions serve to promote safety. Be sure to
read them carefully before installing and using the unit.
This symbol appears on the rating plate to remind the
user to observe the manual.
Medical electrical devices may be used only with reference to the risk of electrical shock, fire or mechanical hazards according to IEC 60601-1.
Intended use The DAC PROFESSIONAL may be used only by
qualified dental personnel.
Disclaimer
The manufacturer assumes no liability whatsoever in cases involving:
• work or repairs performed by any personnel not authorized by the manufacturer or importer.
• an application which does not correspond to the ones described in this manual.
• the use of non-OEM components or any components not described in the section entitled
Parts list.
Electromagnetic compatibility In order to prevent possible risks caused by
electromagnetic interference, no medical electrical or other equipment should be used near the DAC PROFESSIONAL. The unit complies with the currently valid directives concerning electromagnetic compatibility (IEC 60601-1-2).
Only medical devices which comply with IEC 60601-1 may be connected to the DAC PROFESSIONAL. Any non-medical devices connected also must comply with the IEC 60601-1-1 standard for medical devices.
• This unit does not cause any harmful interferences. It can, however, pick up interferences from other devices, including interferences which cause undesirable operation.
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Sirona Dental Systems GmbH Operating Instructions DAC PROFESSIONAL
Operating environment Never use this unit in the presence of flammable
anesthetics or anesthetic agents mixed with air, oxygen or nitrogen.
Inspection and maintenance This point should be implemented according to the
relevant Sirona maintenance documents.
Power supply The DAC PROFESSIONAL must be operated with a
power supply of 230 V, 50 - 60 Hz.
• As the manufacturer, Sirona Dental Systems GmbH provides on written request qualified technical personnel, wiring diagrams, parts lists, and other useful information for the repair and maintenance of those parts which the manufacturer considers to be repairable.
Disposal It generally applies that any disposal of this product must
comply with the relevant national regulations. Please observe the regulations applicable in your country.
Within the European Economic Community, Council Directive 2002/96/EU (WEEE) requires environmentally sound recycling/disposal of electrical and electronic devices.
Your product is marked with the adjacent symbol. Disposal of your product with domestic refuse is not compatible with the objectives of environmentally sound recycling/disposal. The black bar underneath the "garbage can" symbol means that it was put into circulation after Aug. 13,
2005. (see EN 50419:2005)
Please note that this product is subject to Council Directive 2002/96/EU (WEEE) and the applicable national law of your country and must be recycled or disposed of in an environmentally sound manner.
Please contact your dealer if final disposal of your product is required.
ESD protective measures ESD stands for ElectroStatic Discharge.
ATTENTION!
Connector pins or sockets bearing ESD warning labels
must not be touched or interconnected without ESD protective measures.
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ESD protective measures include:
• Procedures for preventing electrostatic charge build-up (e.g. air conditioning, air moistening, conductive floor coverings and non-synthetic clothing)
• Discharging the electrostatic charges of your own body on the frame of the UNIT, the protective ground wire or large metallic objects
• Connecting yourself to ground using a wrist band.
We therefore recommend that all persons working with this system be instructed on the significance of this warning label. Furthermore, they also should receive training in the physics of electrostatic discharges which can occur in the practice and the destruction of electronic components which may result if such components are touched by electrostatically charged
USERS.
ESD stands for ElectroStatic Discharge. Electrostatic discharge must be preceded by electrostatic charging.
Static electric charges generally build up whenever two bodies are rubbed against each other, e.g. when walking (shoe soles against the floor) or driving a vehicle (tires against the street pavement). The amount of charge depends on several factors:
1 nanosecond = 1/1,000,000,000 second = 1 billionth of a second
Thus the charge is higher in an environment with low air humidity than in one with high air humidity; it is also higher with synthetic materials than with natural materials (clothing, floor coverings).
The following rule of thumb can be applied to assess the transient voltages resulting from an electrostatic discharge.
An electrostatic discharge is:
• perceptible at 3,000 V or higher
• audible at 5,000 V or higher (cracking, crackling)
• visible at 10,000 V or higher (arc-over)
The transient currents resulting from these discharges have a magnitude of 10 amperes. They are not hazardous for humans because they last for only several nanoseconds.
Voltage differentials exceeding 30,000 volts per centimeter may lead to a charge transfer (electrostatic discharge, lightning, arc-over).
Integrated circuits (logical circuits and microprocessors) are used in order to implement a wide variety of functions in dental/X-ray/CEREC systems. The circuits must be miniaturized to a very high degree in order to include as many functions as possible on these chips. This leads to structure thicknesses as low as a few ten thousandths of a millimeter.
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Sirona Dental Systems GmbH Operating Instructions DAC PROFESSIONAL
It is obvious that integrated circuits which are connected to plugs leading outside of the unit via cables are sensitive to electrostatic discharge. Even voltages which are imperceptible to the user can cause breakdown of the structures, thus leading to a discharge current which melts the chip in the affected areas. Damage to individual integrated circuits may cause malfunction or failure of the system.
To prevent this from happening, the ESD warning label next to the plug warns of this hazard.
Voltage differentials exceeding 30,000 volts per centimeter may lead to a charge transfer (electrostatic discharge, lightning, arc-over).
Integrated circuits (logical circuits and microprocessors) are used in order to implement a wide variety of functions in dental/X-ray/CEREC systems. The circuits must be miniaturized to a very high degree in order to include as many functions as possible on these chips. This leads to structure thicknesses as low as a few ten thousandths of a millimeter.
It is obvious that integrated circuits which are connected to plugs leading outside of the unit via cables are sensitive to electrostatic discharge. Even voltages which are imperceptible to the user can cause breakdown of the structures, thus leading to a discharge current which melts the chip in the affected areas. Damage to individual integrated circuits may cause malfunction or failure of the system.
To prevent this from happening, the ESD warning label next to the plug warns of this hazard.
Safety information ¾ Be careful when opening the door of the autoclave,
especially if you are interrupting a drying cycle. Small amounts of residual steam can escape through the door and burn operating personnel.
¾ After opening the autoclave door, do not touch
exposed hot metal parts. – burning hazard! Be sure to use the tray handle when removing still-hot trays from the autoclave. Be sure to use a suitable hand protection (e.g. potholders or gloves) when removing other sterilizing containers.
¾ It is recommended to install a leak detector in the
water inlet (see installation instructions, chapter 7).
We also recommend using the SIRODEM water treatment system from Sirona.
¾ This unit is not suitable for the sterilization of
liquids.
¾ According to the currently valid VDE regulations,
this device is not suitable for operation in areas
subject to explosion hazards.
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¾ Empty the water supply tank before transporting
the autoclave. If the autoclave has water inside, do not tilt it.
¾ This device may be repaired only by an authorized
dealer or service department. The persons performing such repairs must use original spare parts and observe the relevant servicing instructions.
¾ Disconnect the power plug before opening the
housing!
¾ This autoclave will properly sterilize only if the
operating personnel observe these Operating Instructions, and especially, follow the instructions regarding program-specific loading of the autoclave.
¾ The autoclave is designed for use outside of the
patient’s immediate vicinity (radius of 1.5 meters around the treatment center).
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Sirona Dental Systems GmbH Operating Instructions DAC PROFESSIONAL

2 Electromagnetic compatibility

The UNIT is intended for operation in the electromagnetic environment specified below.
The customer or user of the UNIT should make sure that it is used in such an environment.
Emission test Conformity Electromagnetic environment
guidelines
RF emissions according to CISPR 11 Group 1 The UNIT uses RF energy only for its
internal function. Therefore, its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment.
RF emissions according to CISPR 11 Class B
The UNIT is intended for use in all facilities, including residential areas and in any facilities connected directly to a public power supply providing
Harmonics according to IEC 61000-3-2
Voltage fluctuations/flicker according to IEC 61000-3-3
not applicable Power output < 50 W
not applicable no significant flicker
electricity to buildings used for residential purposes.
Interference immunity The UNIT is intended for operation in the
electromagnetic environment specified below.
The customer or user of the UNIT should make sure that it is used in such an environment.
Interference
immunity tests
Electrostatic discharge (ESD) according to IEC - 61000-4-2
Electrical fast transient/ burst according to IEC 61000-4-4
IEC 60601-1-1-2
test level
± 6kV contact discharge
± 8 kV air discharge
± 1kV for input and output lines
± 2kV for power cables
Conformance
level
± 6kV contact discharge
± 8 kV air discharge
± 1kV for input and output lines
± 2kV for power cables
Electromagnetic
environment guidelines
Floors should be wood, concrete, or ceramic tile. If floors are covered with synthetic material, the relative humidity should be at least 30%.
The quality of the line power supply should be that of a typical commercial or hospital environment.
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Surge voltages according to IEC 61000-4-5
Voltage dips, short interruptions and variations of the power supply according to IEC 61000-4-11
Magnetic field of power frequencies (50/60 Hz) according to IEC 61000-4-8
± 1kV differential mode
± 2kV common mode
± 1kV differential mode
± 2kV common mode
The quality of the line power supply should be that of a typical commercial or hospital environment.
<5% UT for ½ period (>95% dip of UT)
40% UT for 5 periods (60% dip of UT)
70% UT for 25 periods (30% dip of UT)
<5% UT for 5 sec. (>95% dip of UT)
<5% UT for ½ period (>95% dip of UT)
40% UT for 5 periods (60% dip of UT)
70% UT for 25 periods (30% dip of UT)
<5% UT for 5 sec. (>95% dip of UT)
The quality of the line power supply should be that of a typical commercial or hospital environment.
If the user of the UNIT requires it to continue functioning following interruptions of the power supply, it is recommended to have the UNIT powered by an uninterruptible power supply or a battery.
3 A/m 3 A/m Power frequency magnetic
fields should be at levels characteristic of a typical location in a typical commercial or hospital environment.
Remarks: UT is the AC supply voltage prior to application of the test level.
Device views: DAC PROFESSIONAL
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3 System description

3.1 Device views

rearview
1
2
3
4
6
5
79 8
10
11
12
13
14
15
16
17
18
19
lateral view
1. Control and display panel 11. Elongated hole for optional upgrading with the safety
11. combination EN1717
2. Hinged door (opens to the left) 12. Sterile filter
3. Sliding closing handle 13. Spring-operated safety valve
4. Power switch 14. Without function on DAC PROFESSIONAL (sealed)
14. Option: one-way outlet
5. Adjustable front feet of unit 15. Emergency overflow (OUT)
6. Serial data and printer port (RS 232) 16. Cooler
7. Device fuses - 2 x 16 A / FF 17. Feed water connection (IN) (quick connector f.
17. hose 8x1)
8. Drain hose for water tank, feed water side (OUT) 18. Waste water pressure release for hose 8x1 (OUT)
9. Drain hose for water tank, drain side (OUT) 19. Power cable
10. Tank cover
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4 Technical data

4.1 Primary technical data

Model DAC PROFESSIONAL
Sterilization chamber (dia. x depth) 25 cm x 36 cm
Power ratings 2100 W / 230 V AC / 9.2 A / 50....60 Hz
Sterilization pressure / temperature 2.1 bar/134°C; 1.1 bar/121°C
Maximum load: 5 kg of instruments or 1.8 kg of textiles
Outside dimensions (HxWxD) 48.5 cm x 42.5 cm x 59.5 cm

4.2 Capacity / weights

Weight (without load) 43 kg
Volume of chamber 17.6 liters
Maximum loading 5 kg of instruments or 1.8 kg of textiles
Water tank (feed water) Fresh-water side: 5 liters (approx.7 cycles); drain side:3 liters

4.3 Operating media

Power ratings
Power supply 230 V AC / 9.2 A / 50...60 Hz
Power ratings 2100 W; fuse 16 A, RCCB (resid. current circuit breaker); 30 mA
Feed water Demineralized / steam distilled water in compliance with VDE 0510

4.4 Operating parameters

Programs / operating times
Program Operating time
(not incl. drying period)
“Universal program“ (134°C, 2.1 bar) 30 min 20 min 5 kg
“Quick program S“ (134°C, 2.1 bar) 15 min 5 min 5 kg
“Quick program B“ (134°C, 2.1 bar) 28 min 10 min 5 kg (unwrapped)
“Gentle program“ (121°C, 1.1 bar) 45 min 20 min 1.8 textiles
“Prion program“ (134°C, 2.1 bar) 45 min 20 min 5 kg
"Bowie&Dick" (134°C, 2.2 bar) 33 min 40 min 5 min
“Vacuum test” -- 18 min (empty) --
Drying period Loading
1.5 kg (wrapped)
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Sirona Dental Systems GmbH Operating Instructions DAC PROFESSIONAL
Consumption of energy / water *
Power consumption
"Preheating"
One-time heating up to preheating temperature (134°C)
"Standby" operation per hour approx. 0.2 kWh
"Program cycle" (incl. drying) 0.3 kWh for "Quick program S", warm start, low load until
Feed water consumption 300 ml for "Quick program S"
approx. 0.12 kWh
1.1 kWh for "Gentle program", cold start, full load
2.1 kWh "Quick program B"
500 ml for "Universal program" and "Prion program"
600 ml for "Gentle program"
*) These values apply to a constant 230V power supply

4.5 Installation example

)
DAC PROFESSIONAL rear view
Standard version = version as supplied (with internal water supply)
2 x 20-character alphanumeric LED display for indication of program status and parameters and for user guidance of basic and special functions
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5 Control panel

A) Function keys
for selecting, setting and displaying special functions: printing, date/time, preheating, sum batch numbers, conductivity, error report acknowledgement
B) 2 x 20-character alphanumeric LED display
for indication of program status and parameters and for user guidance of basic and special functions
C) Program selection key
for selection of the sterilization and test programs and for selecting/setting options (submenus) for the special functions
D) Start - Stop key
for starting and stopping programs, for drying, and for control of special functions
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Sirona Dental Systems GmbH Operating Instructions DAC PROFESSIONAL

6 Performance features of unit

6.1 Preliminary air removal by subatmospheric pulsing

Preliminary air removal by subatmospheric pulsing repeatedly evacuates the air from the autoclave and alternately introduces steam between evacuations, thus providing the required penetration of the sterilized objects with saturated steam.
This ensures fast and effective execution of difficult sterilization tasks: e.g. instruments with narrow bores and large amounts of textiles.
Steam penetration can be confirmed via the Bowie & Dick test (a recognized procedure used in large-scale sterilization). A special test program has been implemented for this purpose.

6.2 Sterilization categories

The DAC PROFESSIONAL features four sterilization programs for temperatures of 134°C: the "Universal program" for wrapped objects, the "Fast program B", the "Prion program" (a special Universal program) and the "Quick program S" for unwrapped items. The “Gentle program” is a program for sterilizing textiles and rubber articles at 121°C. The user can at any time perform additional functional checks of the autoclave by running the Bowie & Dick test for steam penetration and the Vacuum test for leak testing.

6.3 Separate steam generation

The powerful steam generator outside the actual sterilization chamber makes it possible to sterilize large loads of instruments or textiles in a short time. No waiting periods are necessary between sterilization cycles, and excess temperatures cannot occur within the sterilization chamber.

6.4 One-way system / conductivity measurement / water supply

The DAC PROFESSIONAL operates with the tried and proven one-way system: this means that all evaporated water and all impurities contained in this water are removed from the autoclave upon pressure release. Clean feed water is therefore used for the following program cycle.
An integrated conductivity measurement system monitors the quality of the feed water used in steam generation. We recommend using a water supply with feed water.
If the instruments are carefully prepared, this arrangement prevents spots on the items sterilized and avoids fouling of the autoclave.
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6.5 Electronic parameter control

The microprocessor installed in the DAC PROFESSIONAL implements an electronic parameter control system which continuously monitors pressure, temperature and time in the programs. The total operating times can thus be optimized according to the load and the temperature of the autoclave.
The process evaluation and monitoring system contained in the program control system compares momentary process parameters with standard processing data and monitors the process with respect to limit temperatures, limit times and limit pressures. This function detects malfunctions in the program cycle and guarantees the security of the sterilization result.

6.6 Vacuum drying

The vacuum drying feature ensures good drying results, even for wrapped items.

6.7 Preheating

6.8 Documentation of batch results

Activating the preheating function warms up the cold autoclave chamber before sterilization or maintains the temperature between sterilization cycles. This shortens the duration of cycles and considerably reduces the formation of condensation, thus optimizing drying results.
Batch results can be documented via the following output media:
• NITRAprint
•NITRAflash
• Computer with NITRAwin
• Modem
The memory of the electronic control system permanently stores records of the last 40 programs.
For effective hard-copy documentation of batches and for checking previously executed programs, a NITRAprint printer can be connected to print out a record immediately after completion of a program, or to print out records from the memory. If a PC is connected, the NITRAwin program can also transfer the records to the PC for permanent archiving of all results and print out any results as required.
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Sirona Dental Systems GmbH Operating Instructions DAC PROFESSIONAL

7 Installation

For the steps required to prepare for and carry out the setup and installation of the autoclave, see the separate instructions contained in "Setting up the
DAC PROFESSIONAL".

7.1 Installation requirements

The autoclave should be set up in a dry place which is protected against dust.
The base should be stable and flat and capable of supporting the weight of the unit (unloaded weight = 43 kg).
The space required by the autoclave can be seen from the external dimensions (see Section 4.1). A minimum additional space of 10 cm should be allowed on both sides and above the autoclave in order to ensure that heat can escape.
The electrical power supply should be a separate 230V AC circuit with a 16A fuse.
This autoclave operates with a blower for the cooling system, on the rear side of the unit. If there is a restriction of the escape of heat above the unit, this can impair the functioning and shorten the service life of the autoclave. We therefore urgently advise our users not to install the autoclave in an area where there is not sufficient circulation of air.
If the user decides to install an automatic one-way system, it is necessary to have a connection to the waste water plumbing near the autoclave, preferably a wall outlet (NW 40) or a sink drain (standard length of drain hose = 2m, with an outer hose diameter = 15 mm). A 2 meter long drain hose (Art. No. 61 26 556) is supplied with the unit. The required connectors must be ordered according to the given practice situation. The work surface on which the autoclave stands must be higher than the outlet so that the drain hose can be run to the drain continuously downward and without bends and twists which could prevent the water flowing out freely. At the same time, the work surface must provide convenient access to the autoclave and the display must be clearly visible.
The autoclave must be supplied with feed water from the integrated dual-chamber water tank, with fresh water and waste water chambers. However, please note that this will require additional space for the water treatment system.
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7.2 Transport straps

Lift the autoclave out of the packaging using the transport straps. The straps themselves are each removed by unscrewing the two retaining screws, which must then be screwed firmly back in place without washers.

7.3 Alignment

In order to operate properly, and to allow unimpeded return flow of condensate into the steam generator, the autoclave must be installed so that it definitely slopes toward the rear. First install the autoclave in a horizontal (level) position and check that this position is in fact horizontal with a spirit level at the chamber flange. Then extend the front feet to lift up the front side of the autoclave by screwing them out by at least three turns.

7.4 Power supply connection

The unit power cord must be connected to a 230 V, 50 Hz electric outlet. The power rating of the autoclave is 2100 W. In order to avoid overloading the building electricity supply, we recommend using a separate electrical circuit fitted with a 16 A fuse and optionally protected with a type RCCB (residual current circuit breaker) with a tripping current of 30 mA.

7.5 Outlet connection for one-way water

The DAC PROFESSIONAL operates only in the one-way water system, i.e. used feed water
(hereinafter referred to as "waste water") is not
recycled. Waste water is collected in the drain tank. As
an option, the autoclave can be connected directly to the waste water plumbing via the one-way outlet. A retrofit kit is connected to the rear wall of the autoclave for this purpose. Its drain hose must be run to the drain
continuously downward and without bends or twists and must not exceed a max. length of 2 meters. The outlet must be connected to an existing sink drain, or to a separate NW40 drain pipe with use of the wall-mounted drain.

7.6 Internal water supply with feed water

If the user decides for internal supply of the autoclave with feed water, this water is taken from the right chamber of the built-in water storage tank. To install the internal feed water supply system, connect the hose to the feed water connection of the water tank on the rear side of the autoclave. For this variation of water supply, the autoclave is delivered ready for installation. To fill the feed water tank, remove the cover of the tank and fill the right chamber with feed water up to the maximum mark.
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Sirona Dental Systems GmbH Operating Instructions DAC PROFESSIONAL

7.7 Water treatment system

We recommend the SIRODEM treatment unit for the water supply of the autoclave.

7.8 Emptying the water storage tank

Empty both chambers of the water storage tank as follows:
• Plug the drain hose onto a quick coupling (drain tank on the left, feed water tank on the right) until it
perceptibly snaps into place.
• Drain the water into a vessel or container with a capacity of at least 5 liters.
To remove the drain hose, press the gray release button on the quick coupling. The hose automatically disengages from the coupling.
ATTENTION!
Please note the following when removing the quick coupling:
– When emptying the supply chambers, stand to one side in front of the connection. – When pushing the gray release button of the quick coupling, be sure to hold the hose securely in place with your other hand in order to stave off the spring force of the catch.
Failure to observe this precaution may result in injury.
• Repeat this procedure for the other chamber.
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8 Startup

8.1 Printer connection and initialization (optional)

Connection of the NITRAPrint 42 (REF 61 17 324) A NITRAPrint 42 (REF 61 17 324) log printer can be
connected to the autoclave. It is not included in the scope of supply of the autoclave.
When connecting the printer to the autoclave, please proceed as described in Section "Connection of the
NITRAPrint®42 printer", page 42 .
Initializing the printer / adjustment for immediate printout

8.2 Vacuum test

Operator action Display reading
1..
Switch the unit on at the power switch. After the following message
Perform the initialization of the connected printer (registration in the computer control of the autoclave)
according to Section "Initializing the printer", page 42 . Follow the instructions in Section 11.3.3 of this manual
to set the immediate printout option to “Yes”. This means that the system will automatically print out a report when the system program has come to an end.
A vacuum test (leak test) should be conducted to check the function of the autoclave once during the initial startup, after longer periods of disuse, when moving the unit to a new location and periodically as part of routine operations.
The vacuum test should preferably be performed on the cold autoclave as follows:
the initial state is indicated
on the display
2..
Press the "Program" key repeatedly until the "Vacuum test" program appears on the display
3.
Press the "Start - Stop" key
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