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Service Manual
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Sirona Dental Systems GmbH
Service Manual inFire HTC speed
Table of contents
1
Important information ...............................................................................................
5
1.1
General information.......................................................................................
5
1.2
Technical data...............................................................................................
6
1.3
Safety information .........................................................................................
7
How does inFire HTC work? ....................................................................................
9
2.1
Functional diagram........................................................................................
9
2.2
Description of the furnace .............................................................................
10
Circuit diagram .........................................................................................................
11
3.1
Up to serial no. 3000 .....................................................................................
11
3.2
From serial no. 3000 .....................................................................................
12
System overview ......................................................................................................
13
4.1
Front view......................................................................................................
13
4.2
Rear view ......................................................................................................
15
5
Wiring diagram .........................................................................................................
16
6
Tools.........................................................................................................................
17
7
Initializing the controller............................................................................................
19
8
Troubleshooting........................................................................................................
20
8.1
Error messages from electronic components................................................
20
8.1.1 Error message: SENSOR BROKEN ..................................................
20
8.1.2 Error message: SENSOR +<->..........................................................
21
8.1.3 Error message: TURN-OFF ...............................................................
21
8.1.4 Error message: POWER FAILURE....................................................
21
Error without message on the display ...........................................................
22
8.2.1 Error: Wrong time displayed...............................................................
22
8.2.2 Error: Furnace does not heat up although autostart program is
running
22
8.2.3 Error: LED on control panel indicates heating, but furnace does not
heat
23
8.2.4 Error: Controller board "forgets" the stored programs........................
24
8.2.5 Error: Controller board "forgets" the time ...........................................
24
2
3
4
8.2
2
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9
8.2.6 Error: No display reading, yellow pilot light of ON/OFF switch is on,
diode flashes briefly
24
8.2.7 Error: No display reading, yellow pilot light is on, diode is not lit.......
25
8.2.8 Error: No display reading, yellow pilot light is off...............................
25
8.2.9 Error: Furnace triggers circuit breaker ..............................................
26
8.2.10 Error: Furnace triggers the circuit breaker in the fuse box ................
26
Replacing parts........................................................................................................
28
9.1
Replacing the heating element.....................................................................
28
9.1.1 Resetting the counter after replacing the heating element................
29
Replacing the controller board .....................................................................
29
9.2.1 Resetting the counter after replacing the controller board ................
30
Replacing the storage battery ......................................................................
31
9.3.1 Resetting the counter after replacing the storage battery .................
31
9.4
Replacing main fuses F1/F2.........................................................................
31
9.5
Replacing fuses F3/F4 .................................................................................
32
9.6
Replacing the thermocouple.........................................................................
32
9.7
Replacing the fan .........................................................................................
32
Upgrading ................................................................................................................
33
10.1
Upgrading to Superspeed ............................................................................
33
10.1.1 Scope of supply.................................................................................
33
10.1.2 Required tools ...................................................................................
33
10.1.3 Introduction .......................................................................................
34
10.1.4 Procedure..........................................................................................
34
10.1.4.1Disconnect the power supply ..........................................................
34
10.1.4.2Removing the regulator board.........................................................
35
10.1.4.3Unscrewing the control panel ..........................................................
37
10.1.4.4Installing the new regulator board ...................................................
37
10.1.4.5Installing the new control panel .......................................................
38
10.1.4.6Final work ........................................................................................
38
10.1.4.7Updating the control software..........................................................
39
Upgrading to non-precious metal sintering...................................................
43
10.2.1 Scope of supply.................................................................................
43
10.2.2 Required tools ...................................................................................
44
10.2.3 Preparation........................................................................................
45
10.2.3.1Disconnect the power supply ..........................................................
45
10.2.3.2Opening the rear panel of the unit...................................................
45
9.2
9.3
10
10.2
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Service Manual inFire HTC speed
Sirona Dental Systems GmbH
Service Manual inFire HTC speed
11
4
10.2.4 Procedure...........................................................................................
46
10.2.4.1Install the front coupling ...................................................................
46
10.2.4.2Install the rear coupling ....................................................................
47
10.2.4.3Installing the gas management module ...........................................
48
10.2.4.4Connecting cables to the regulator board ........................................
49
10.2.4.5Installing the rear panel of the unit ...................................................
50
10.2.4.6Final work.........................................................................................
51
10.2.4.7Modifying the furnace door...............................................................
51
10.2.4.8Assembling the furnace door with the gas socket ............................
52
RS232 interface........................................................................................................
54
11.1
54
Temperature difference output......................................................................
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1 Important information
Service Manual inFire HTC speed
1.1 General information
1
Important information
Important information
1.1 General information
General information
The graphics used in this document show devices both up to serial
number 3000 and after serial number 3000, or before and after the
upgrade to Superspeed / non-precious metal sintering.
Example:
Control panel up to serial number 3000 / before the upgrade to
Superspeed
/min
inFi
re H
TC
min
S4
S3
1
S2
4
S1
7
2
5
8
3
6
9
F
0
Control panel after serial number 3000 / after the upgrade to Superspeed
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STA
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1 Important information
Sirona Dental Systems GmbH
1.2 Technical data
Service Manual inFire HTC speed
1.2 Technical data
Model designation:
Technical data
inFire HTC speed
Type of protection against electric shock:
Protection Class I device
Degree of protection against ingress of water:
Ordinary device (without protection against ingress of
water)
Setup location:
Indoors in dry area
Height
up to 2,000 m
Temperature range:
5 °C to 40 °C (41 °F to 104 °F)
Relative humidity
80% up to 31 °C (87.8 °F), above this decreasing linearly
to 50% at 40 °C (104 °F), no condensation
Overvoltage category:
II
Pollution degree:
2
Mode of operation:
Continuous operation
Dimensions of unit (W x H x D in mm):
500 x 802 x 565
Dimensions of packaged unit (W x H x D in mm):
630 x 1300 x 730
Furnace chamber:
Diameter 130 mm x 80 mm height
Maximum sintering temperature:
1,650 °C (3,002 °F)
Approx. weight without packaging:
80 kg
Approx. weight including packaging:
96 kg
Rated line voltage
(all units except REF: 6401462 and 6416247):
200 VAC – 240 VAC
Rated line frequency
(all units except REF: 6401462 and 6416247):
50 / 60 Hz
Rated current consumption
(all units except REF: 6401462 and 6416247):
15A
Main unit fuse F1/F2
inFire HTC speed technical data service manual
for 200 VAC − 240 VAC: T16A,
Order No. 61 32 448 (10 pcs)
Fuse F3 control board emergency cooling
for 250VAC: T200mA,
Order No. 61 32 463 (10 pcs)
Fuse F4 control board emergency cooling
for 250VAC: T2.5A,
Order No. 61 32 471 (10 pcs)
inFire HTC speed technical data model no.: 6133925
Only for REF: 6401462 and 6416247
Rated line voltage:
220 VAC – 230 VAC
Rated power frequency:
50 Hz
Rated current consumption:
13A
6
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1 Important information
Service Manual inFire HTC speed
1.3 Safety information
1.3 Safety information
inFire
Safetymaintenance
information and repair
As manufacturers of dental and laboratory equipment and in the interest
of the operational safety of your system, we stress the importance of
having maintenance and repairs performed exclusively by our own
personnel or through our authorized representatives. Furthermore,
safety-critical system components must always be replaced with original
spare parts.
We suggest that you request a certificate specifying the nature and extent
of the work performed from the persons who performed it. Furthermore,
the certificate should also include any possible changes in rated
parameters or working ranges as well as the date, the name of the firm
and a signature.
Modifications to this system which may affect the safety of the operator or
third parties are prohibited by law.
For reasons of product safety, this product may be operated only with
original Sirona accessories or third-party accessories expressly approved
by Sirona. The user is responsible for any damage resulting from the use
of non-approved accessories.
If any equipment not approved by Sirona is connected, it must comply
with the applicable standards:
● EN 60 950 for information technology equipment, and
● EN 61 010-1 for laboratory equipment.
inFire SERV safety instructions
CAUTION
Damage/danger resulting from unauthorized alterations
The inFire HTC speed high-temperature furnace may only be altered
with our express prior approval. We are not liable for unauthorized
alterations of any kind.
Prior to opening the unit, connecting a measuring instrument or
replacing parts:
➢ Switch off the unit.
➢ Disconnect the power plug.
Separate circuit
WARNING
Separate circuit
The inFire HTC speed high-temperature furnace must always be
connected to a separate circuit with at least a 16A fuse. The fuses must
be of the C type.
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inFire standards
1 Important information
Sirona Dental Systems GmbH
1.3 Safety information
Service Manual inFire HTC speed
Risk of burning
WARNING
Risk of burns due to hot surfaces
The inFire HTC speed high-temperature furnace may develop hot
surfaces in some areas after extended use. Use the necessary caution
around the unit, especially when the furnace is operated for extended
periods.
➢ Never touch the hot surfaces.
WARNING
Risk of burns due to hot surfaces
Once the program has ended and the furnace has shut down, the
cooling fan will run until the interior temperature of the furnace has been
reduced to normal. The power plug may not be disconnected prior to this
point.
Wireless phone interference with laboratory equipment
Wireless phone interference with
laboratory equipment
To ensure safe operation of laboratory equipment, the use of mobile
wireless phones in laboratory environments must be prohibited.
Note on the prevention, recognition and
elimination of unintended
electromagnetic effects
This device is a piece of electrical equipment with a supply voltage below
1000 VAC and is intended for commercial use. It is to be installed in
dental laboratories or other areas with a controlled electromagnetic
environment. The applicable EMC requirements comply with EN
61326:2006.
Troubleshooting:
If you encounter difficulties, check the Troubleshooting section first and
proceed as instructed there.
Note on electromagnetic effects
Troubleshooting
Objects falling out
WARNING
Risk of burns due to objects falling out
As there is a serious risk of burns in this case, it is essential to install a
fire-proof table and floor covering.
I. You are advised to wear heat-proof protective clothing when carrying
out super speed sintering. In accordance with professional association
regulations, the operator of the site is responsible for providing the user
with appropriate protective clothing.
II. The operator of the site is responsible for giving the user appropriate
safety instructions.
III. If a fracture occurs during the sintering process as a result of a failure
to adhere to the recommended drying procedure, there is a risk that hot
objects will fall out as soon as the furnace door is opened.
IV. The furnace should only be loaded and unloaded using the crucible
fork. For safety reasons, a trained user must be present when the
furnace is being loaded or unloaded.
8
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2 How does inFire HTC work?
Service Manual inFire HTC speed
2.1 Functional diagram
2
How does inFire HTC work?
How does inFire HTC work?
2.1 Functional diagram
Functional diagram
E
A
B
båÖäáëÜ
200V~ - 240V~
F
C
G
H
D
I
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A
Control panel
F
Energy module
B
Controller board
G
Storage battery buffering
C
Transformer
H
Storage battery
D
Heating elements
I
Fan
E
Door drive
9
2 How does inFire HTC work?
Sirona Dental Systems GmbH
2.2 Description of the furnace
Service Manual inFire HTC speed
2.2 Description of the furnace
Description of the furnace
The heating system consists of six high-quality MoSi2 heating elements.
Thanks to the excellent interior insulation, the energy consumption of the
unit is low.
The furnace is equipped with a safety feature that prevents the
uncontrolled opening of the furnace.
The HT sensor is equipped with a thermocouple burn-off device which
prevents the furnace from accidental overheating in the case of a sensor
defect.
10
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LB
L
L
N
PE
LINE
N PE
N PE
U
1
N’
3
4
PE
E4
E3
E2
Heizelemente
Heating elements
Eléments de chauffage
Calefactores
Resistenze elettriche
35V
230V
KL3
E1
Oberkasten
Upper box
Coffret supérieur
Caja superior
Cassa superiore
OB
T10
inFire HTC speed
Serial No >2000, 2.74KVA
Serial No <2000, 2KVA
inFire HTC
K1
Reglerplatine
Controller board
Platine régulateur
Platina regulación
Piastra di regolazione
L
3
unten 4
lower
en bas
abajo
sotto
S1
S2
E6
E5
RS232
BU1
BU1
Display
Display
Afficheur
Pantalla
Display
Bimetall
Bimetal
Bimétal
Bimetal
Bimetallo
S3
X20
SUB-D
Thermoelement
Thermocouple
Thermoélément
Termoelementos
Termoelemento
B1
KL2
ST2
ST2
P1
N
L
1
KL1
C3
M3
M
Bimetall
C1
Akku
Battery
Batterie
Batería
Batteria
Akku
F4
2,5AT
Akkupufferung
Buffer for storage battery
Secours par batterie
Seguridad batería
Tampone batteria
N
båÖäáëÜ
Türantrieb
Door drive
Moteur de porte
Accionam. Puerta
Azionamento porta
L
F3
200mAT
A1
1
2
Lüfter
Fan
Ventilateur
Ventilador
Ventilatore
Lüfter
Fan
Ventilateur
Ventilador
Ventilatore
M1
1
M2
2
Service Manual inFire HTC speed
Kaltgerätestecker
IEC connector
Fiche CEI
Conector IEC
Presa di ingresso per
l’alimentazione ausiliaria
X1
F1
F2
16AT 16AT
Filter
Filter
Filtre
Filtro
N PE
L
L’ N’ PE
LOAD
N PE
L
oben
upper
en haut
arriba
sopra
3
T1
Klemmbrett
Terminal strip
Bornier
Regleta bornes
Morsettiera
X10
Leistungsbox
Power box
Boîtier de puissance
Caja de potencia
Scatola di alimentazione
Sirona Dental Systems GmbH
3.1 Up to serial no. 3000
3 Circuit diagram
Circuit diagram
Circuit diagram
3.1 Up to serial no. 3000
Up to serial no. 3000
11
3 Circuit diagram
Sirona Dental Systems GmbH
3.2 From serial no. 3000
Service Manual inFire HTC speed
3.2 From serial no. 3000
From serial no. 3000
12
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4 System overview
Service Manual inFire HTC speed
4.1 Front view
4
System overview
System overview
4.1 Front view
Front view
A
B
C
båÖäáëÜ
D
E
F
G
H
/min
inFi
re H
TC
min
S4
S3
1
S2
S1
4
7
2
5
8
0
3
6
9
F
STA
RT
STO
P
A
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Thermocouple
E
Heating element
B
Bimetal switch
F
Controller board
C
Aluminum band
G
Drawer
D
Clamp
H
Control panel
13
4 System overview
Sirona Dental Systems GmbH
4.1 Front view
Service Manual inFire HTC speed
J
O
K
P
M
L
Q
N
R
S
14
J
Sintering tray
O
sinter beads
K
Ceramic tube
P
crucible fork
L
Door insulation
Q
Crucible fork rack
M
Ceramic tube
R
Door drive unit
N
Door shell
S
Door holder
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4 System overview
Service Manual inFire HTC speed
4.2 Rear view
4.2 Rear view
Rear view
A
båÖäáëÜ
B
C
F1
F2
F4
F3
D
F
E
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A
Door drive unit
D
Control board for
emergency cooling
B
Storage battery
E
Back panel
C
Energy module
F
Fan
15
5 Wiring diagram
Sirona Dental Systems GmbH
Service Manual inFire HTC speed
5
Wiring diagram
Wiring diagram
B
D
A
C
H
G
0
S1
inFire HTC
/min
min
E
START
STOP
9
8
7
S2
6
5
4
S3
3
2
1
S4
F
I
F4
F3
F
F1
F2
J
A
16
Thermocouple
F
Control board for
emergency cooling
B
Bimetal switch
G
Fan
C
Heating element
H
Control panel
D
Aluminum band
I
Controller board
E
Storage battery
J
Door drive unit
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6 Tools
Service Manual inFire HTC speed
6
Tools
Tools
Torx screwdrivers, assorted
båÖäáëÜ
Open-end wrenches, assorted
Drawing of different ratchet wrenches
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6 Tools
Sirona Dental Systems GmbH
Service Manual inFire HTC speed
Drawing of side cutters
Graphics: Awl
Twist drill
18
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7 Initializing the controller
Service Manual inFire HTC speed
7
Initializing the controller
Initializing the controller
In order to guarantee optimal controller performance of the various
laboratory furnaces, different control parameters are preset.
The following code resets the controller to the factory default settings:
inFi
inFi
rere HTC
HTC
✔ The LCD display must be set to "STNDBY".
/min
/min
min
min
S4
S3
S3
11
S2
S2
44
S1
S1
77
22
55
88
00
33
66
99
FF
START
START
STOP
STOP
/min
S4
min
S3
S2
S1
1. Press the following key for the HT furnace series: F
min
min
S4
S3
S3
11
S2
S2
S1
S1
44
77
22
55
88
00
33
66
99
båÖäáëÜ
inFnFiirere
HTC
HT
C
 The cursor appears on the LCD display.
FF
START
START
STOP
STOP
2. Enter the following key sequence: 8 5 4 0
/min
S4
min
S3
 The controller is now reset to the factory default and the
applicable control parameters are activated.
S2
S1
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8 Troubleshooting
Sirona Dental Systems GmbH
8.1 Error messages from electronic components
8
Service Manual inFire HTC speed
Troubleshooting
Troubleshooting
8.1 Error messages from electronic components
Error messages from electronic components
Error messages are displayed on the LCD screen. They are accompanied
by an acoustic signal.
8.1.1
Error message: SENSOR BROKEN
Cause: Thermocouple connections are loose.
Error message: SENSOR BROKEN
/min
min
S4
S3
Elimination: Check the thermocouple connections.
S2
S1
0
S1
inFire HTC
/min
min
START
STOP
9
8
7
S2
6
5
4
S3
3
2
1
S4
F
Cause: Thermocouple is defective.
Elimination: Replace the thermocouple.
See "Replacing the controller board [ → 29]“.
20
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8 Troubleshooting
Service Manual inFire HTC speed
8.1 Error messages from electronic components
8.1.2
Error message: SENSOR +<->
Cause: Thermocouple is incorrectly connected.
Error message: SENSOR +<->
/min
S4
min
S3
S2
S1
8.1.3
Elimination: Swap the thermocouple connections.
Cause: Temperature inside the furnace is significantly below room
temperature.
Elimination: Open door and wait until the heating chamber has reached
room temperature
Error message: TURN-OFF
Cause: Furnace temperature exceeds 1650°C.
Error message: TURN-OFF
/min
S4
min
S3
S2
Elimination: Switch the furnace OFF and let it cool down.
Call customer service.
8.1.4
båÖäáëÜ
S1
Error message: POWER FAILURE
Error message: POWER FAILURE
Cause:
Power failure when furnace temperature rises above 1000°C for more
than 10 s.
Multiple power failures when furnace temperature rises above 1000°C for
a total time of more than 10 s.
Elimination:
This error message must be acknowledged with the "START"/"STOP"
key.
Switching the unit off and on does not cause the error to disappear.
If such malfunctions occur frequently, advise the user to contact his local
electric utility company or take other appropriate action to ensure a
constant power supply.
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8 Troubleshooting
Sirona Dental Systems GmbH
8.2 Error without message on the display
Service Manual inFire HTC speed
8.2 Error without message on the display
Error without message on the display
8.2.1
Error: Wrong time displayed
Error: Wrong time displayed
Cause:
Incorrect time in controller.
Elimination:
ininFFirire
e HHTC
TC
Adjust the time.
/m
/minin
The current time always has to be adjusted manually when clocks are
changed for daylight savings time.
mmin
in
S4
SS33
SS11
11
SS22
44
77
00
22
55
88
33
66
99
1. Press function key "F".
FF
2. Use key S2 to set the current time via the numeric keys. (Monday =
1, Tuesday = 2 ... Sunday = 7.).
STAR
STSTOPARTT
STOP
/min
min
S4
3. Press key S1 to quit the dialog.

The changes are saved in the memory.
S3
S2
S1
8.2.2
Error: Furnace does not heat up although autostart
program is running
Error: Furnace does not heat up although autostart program is running
Cause
Power was out for a long time during the autostart program.
Elimination
Check the power connection.
Make sure power connection is not switched with a timer.
22
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8 Troubleshooting
Service Manual inFire HTC speed
8.2 Error without message on the display
8.2.3
Error: LED on control panel indicates heating, but furnace
does not heat
Error: LED on control panel indicates heating, but furnace does not heat
/min
min
S4
1
2
3
S3
4
5
6
S2
7
8
9
0
START
STOP
båÖäáëÜ
S1
F
Ω
Ω
Heating defective
Cause
Heating defective.
Elimination
Check whether heating is jammed, measure resistance with ohmmeter:
Ro.k. = 0.6 Ω
individual heating element = 0.1 Ω
Replace defective heating element (see "Replacing the heating
element [ → 28]“).
Call customer service.
Controller board defective
Cause
Controller board defective.
Elimination
Replace controller board (see "Replacing the controller board [ → 29]“).
Call customer service.
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8 Troubleshooting
Sirona Dental Systems GmbH
8.2 Error without message on the display
8.2.4
Service Manual inFire HTC speed
Error: Controller board "forgets" the stored programs
Error: Controller board "forgets" the stored programs
Cause
Controller board defective.
Elimination
Replace controller board (see "Replacing the controller board [ → 29]“).
Call customer service.
8.2.5
Error: Controller board "forgets" the time
Error: Controller board "forgets" the time
Cause
Controller board defective.
Elimination
Replace controller board (see "Replacing the controller board [ → 29]“).
Call customer service.
8.2.6
Error: No display reading, yellow pilot light of ON/OFF
switch is on, diode flashes briefly
Error: No display reading, yellow pilot light of ON/OFF switch is on, diode flashes briefly
Description of the error
● No display.
● Yellow pilot light of ON/OFF switch is on.
● Diode flashes briefly when unit is switched on.
/min
min
S4
1
2
3
S3
4
5
6
S2
7
8
9
S1
0
F
START
STOP
Controller board defective
Cause
Controller board defective.
Elimination
Replace controller board (see "Replacing the controller board [ → 29]“).
Call customer service.
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Service Manual inFire HTC speed
8.2 Error without message on the display
8.2.7
Error: No display reading, yellow pilot light is on, diode is
not lit
Error: No display reading, yellow pilot light is on, diode is not lit
Description of the error
● No display.
● Yellow pilot light of ON/OFF switch is on.
● Diode does not light up when unit is switched on.
min
S4
1
2
3
S3
4
5
6
S2
7
8
9
S1
0
F
START
STOP
båÖäáëÜ
/min
Cause
Protection fuse of the furnace is defective.
Elimination
Switch furnace off, wait for 30 seconds. Switch furnace on.
If this produces no results:
Controller board defective
Cause
Controller board defective.
Elimination
Replace controller board (see "Replacing the controller board [ → 29]“).
Call customer service.
8.2.8
Error: No display reading, yellow pilot light is off
Error: No display reading, yellow pilot light is off
Description of the error
● No display.
● Yellow pilot light of ON/OFF switch is off.
Cause
No line voltage.
Elimination
Check the breakers in the fuse box/the connecting cable.
Call customer service.
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8.2 Error without message on the display
8.2.9
Service Manual inFire HTC speed
Error: Furnace triggers circuit breaker
Error: Furnace triggers circuit breaker
Cause
Unsuitable circuit breaker.
Elimination
Install a 16 A K circuit breaker.
Use circuit breaker type C from serial no. 3000.
8.2.10
Error: Furnace triggers the circuit breaker in the fuse box
Error: Furnace triggers the circuit breaker in the fuse box
Ω
Ω
Heating defective
Cause
Heating defective.
Elimination
Check whether heating is jammed, measure resistance with ohmmeter:
Ro.k. = 0.6 Ω
individual heating element = 0.1 Ω
Replace defective heating element (see "Replacing the heating
element [ → 28]“).
Call customer service.
Cause
Fault current circuit breaker is too sensitive.
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8.2 Error without message on the display
Elimination
båÖäáëÜ
Install 30 mA circuit breaker.
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9.1 Replacing the heating element
Service Manual inFire HTC speed
9
Replacing parts
Replacing parts
9.1 Replacing the heating element
Replacing the heating element
B
A
A
C
✔ The unit is switched off and its power plug is disconnected.
1. Loosen the clamps (A) and pull off the aluminum band (B).
2. Replace the heating element (C).
3. Refasten the aluminum band (B) with the clamps (A).
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9.2 Replacing the controller board
9.1.1
Resetting the counter after replacing the heating element
Resetting the counter after replacing the heating element
✔ The heating element has been replaced.
/min
min
S4
1
2
3
S3
4
5
6
S2
7
8
9
/min
min
F
START
STOP
0
S1
S4
1
2
3
S3
4
5
6
S2
7
8
9
2. Press the S4 key in the display window for the operating hours.
F
START
STOP
0
S1
1. Enter the code F8561.
From serial number 3000 or from converted electronics (Superspeed
upgrade kit) the service code is: F08561.
 The entry cursor is at the beginning of the entry field for the
operating hours of the heating.
3. Enter the 0 five times.
4. Press the S1 key (next).
 The counter for the heating operating hours is now reset.
båÖäáëÜ
9.2 Replacing the controller board
Replacing the controller board
Preparations
/min
min
1
2
S3
4
5
S2
7
8
min
S4
1
2
3
S3
4
5
6
S2
7
8
9
0
S1
/min
min
 Line 3 of the display shows the serial no. for 3 seconds (e.g.
"SERIAL NO": 1).
0
S1
/min
1. Switch the furnace on.
S4
2. Note the displayed "SERIAL NO".
3. Enter the code F8561.
From serial number 3000 or from converted electronics (Superspeed
upgrade kit) the service code is: F08561.
F
START
STOP
 Line 1 of the display shows the operating time of the heating in
hours (e.g. "HRS. HEATING": 00345) and line 2 indicates the
operating time of the storage battery in days (e.g. "DAYS STOR.
BAT": 00096").
4. Note the displayed values and then switch the furnace off.
S4
1
S3
4
NOTICE
S2
7
Data of the controller board can no longer be read because of a defect
S1
If the data of the controller board can no longer be read because of a
defect, you can also refer to the type label at the back of the furnace for
the serial number.
Add the value 8760 for the operating hours of the heating system for
every year of operation.
Add the value 365 for the operating days of the storage battery for every
year of operation.
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9.2 Replacing the controller board
Service Manual inFire HTC speed
Replacing the controller board
✔ The furnace is switched off.
1. Loosen and remove both screws (A).
2. Pull out the drawer.
3. Loosen the connections to the controller board.
4. Remove the six screws (B) of the controller board.
B
5. Replace the controller board.
/min
inFir
eH
TC
min
S4
S3
1
S2
S1
4
7
0
2
5
8
3
6
9
F
STA
RT
STO
P
A
A
9.2.1
Resetting the counter after replacing the controller board
Resetting the counter after replacing the controller board
✔ The controller board has been replaced.
✔ The furnace is switched off.
/min
min
S4
1
2
S3
4
5
S2
7
8
0
S1
/min
min
S4
1
2
3
S3
4
5
6
S2
7
8
9
0
S1
1. Switch the furnace on.
 The software immediately displays the input window for the serial
number.
2. Enter the five-digit serial number noted earlier.
3. Enter the code F8561.
From serial number 3000 or from converted electronics (Superspeed
upgrade kit) the service code is: F08561.
F
START
STOP
4. Press the S4 key in the display window for the operating hours.
/min
min
S4
1
S3
4
S2
7
S1
 The entry cursor is at the beginning of the entry field for the
operating hours of the heating.
5. Enter the five-digit value noted earlier.
6. Press the S3 key.
 The entry cursor is at the beginning of the input field for the
operating days of the storage battery.
7. Enter the five-digit value noted earlier.
8. Press the S1 key (next).
 This completes the configuration of the controller board.
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9.3 Replacing the storage battery
9.3 Replacing the storage battery
Replacing the storage battery
/min
S4
min
IMPORTANT
S3
S2
S1
The battery should be replaced after two years at the latest or when this
is indicated on the "REP.STR. BATT." display.
Replace the battery as follows when the following message appears on
the display:
"REP.STR. BATT."
"CALL CUSTOM SERVICE"
1. Cut and remove the cable tie.
3. Unscrew and remove the bracket and replace the battery with a new
one.
4. Screw the bracket back on again.
5. Plug the red and blue leads back on and secure them with a cable tie.
9.3.1
Resetting the counter after replacing the storage battery
1. Enter the code F8561.
From serial number 3000 or from converted electronics (Superspeed
upgrade kit) the service code is: F08561.
Resetting the counter after replacing the storage battery
/min
min
S4
1
2
3
S3
4
5
6
S2
7
8
9
min
inFire HTC
START
STOP
0
S1
/min
F
S4
1
2
3
S3
4
5
6
S2
7
8
9
S1
0
2. Press the S3 key in the display window for the operating hours.
F
START
STOP
 The entry cursor is at the beginning of the input field for the
operating days of the storage battery.
3. Enter the "0" five times.
4. Press the "S1" key (next).
 The counter for the battery operating days is now reset.
9.4 Replacing main fuses F1/F2
For 200 VAC to 240 VAC: T16A,
Replacing main fuses F1/F2
Order No.: 61 32 448 (10 pcs.)
➢ Unscrew the defective unit main fuses F1/F2 from the energy module
and replace them with new ones.
F1
F2
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båÖäáëÜ
2. Detach the red (+) and blue (-) leads from the battery.
9 Replacing parts
Sirona Dental Systems GmbH
9.5 Replacing fuses F3/F4
Service Manual inFire HTC speed
9.5 Replacing fuses F3/F4
Fuse F3 for 250 VAC: T200mA,
Order No.: 61 32 463 (10 pcs.)
Replacing fuses F3/F4
Fuse F4 for 250 VAC: T2.5A,
Order No.: 61 32 471 (10 pcs.)
F4
➢ Unscrew the defective fuses F3/F4 from the control board for
emergency cooling and replace them with new ones.
F3
9.6 Replacing the thermocouple
1. Cut and remove the cable ties.
Replacing the thermocouple
2. Detach the red (+) and white (-) cables from the thermocouple.
3. Unscrew and remove the thermocouple and replace it with a new
one.
4. Screw the red and white leads tight again and secure them with cable
ties.
9.7 Replacing the fan
1. Loosen the cover (A) of the cable duct.
Replacing the fan
2. Pull the connector of the fan lead (B) off of the control board for
emergency cooling.
3. Replace the fan (C).
4. Reattach the plug of the fan cable (B) and the cover (A).
A
B
C
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10.1 Upgrading to Superspeed
10
Upgrading
Upgrading
10.1 Upgrading to Superspeed
Upgrading to Superspeed
10.1.1
Scope of supply
● Controller board
Scope of supply
båÖäáëÜ
● Control panel
● Super speed crucible fork
Superspeed fragment tool
● Super speed crucible
● Superspeed fireproof tray
10.1.2
Required tools
● Screwdriver, Torx®/TX20
Required tools
20
Screwdriver, Torx/TX10
● Screwdriver, Torx® / TX10
10
Graphics: Slot screwdriver, neutral
Electronic screwdriver
● Electronic screwdriver (small, flat blade)
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10.1 Upgrading to Superspeed
Service Manual inFire HTC speed
● Side cutting pliers
Side cutting pliers
Single socket wrench
Wrench insert 5.5
● Wrench insert 5.5
10.1.3
Introduction
Introduction
These instructions describe the modification of an inFire HTC speed with
a new current control and a new control panel. To do this, the installed
parts are replaced by the parts supplied.
10.1.4
Procedure
Procedure
10.1.4.1
Disconnect the power supply
Disconnect the power supply
WARNING
Electrical power!
Potentially lethal shock hazard!
➢ Do not touch live cables and components with wet hands.
➢ Please observe the accident prevention regulations for handling
electricity.
➢ Disconnect the power supply of the unit before installation,
maintenance, cleaning, and repair work, and ensure that the power
will not be inadvertently switched on.
➢ Disconnect the power supply of the unit and ensure that the power
will not be inadvertently switched on.
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10.1 Upgrading to Superspeed
10.1.4.2
Removing the regulator board
Removing the regulator board
båÖäáëÜ
✔ The unit is switched off and its power plug is disconnected.
Overview image
1. Unscrew both screws (A).
2. Pull out the drawer (B).
3. Pull out all the connectors marked with red arrow points from the
regulator board (C).
4. Pull out the cable lug connections marked with red arrow points from
the regulator board.
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Service Manual inFire HTC speed
5. Cut the cable tie of the 2 cables of the main switch.
6. NOTICE! Always pay attention to the cable markings here! Pull out
the 4 cable lugs.
7. Release the two screws and remove the thermocouple cables.
8. Unscrew the regulator board (C), as illustrated in the overview image
(6 TX10 screws) and remove the board (no longer required).
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10.1 Upgrading to Superspeed
10.1.4.3
Unscrewing the control panel
Unscrewing the control panel
1. Unscrew the 4 nuts (M5.5) with a short socket wrench.
0
S1
båÖäáëÜ
inFire HTC
/min
min
START
STOP
9
8
6
5
4
3
2
1
7
S2
S3
S4
F
2. Remove all the plugs from the rear side of the control panel.
3. Remove the control panel (no longer required)
10.1.4.4
Installing the new regulator board
Installing the new regulator board
1. Insert the new regulator board supplied and screw it on tightly (6
TX10 screws).
2. Connect all the previously removed connectors, cable lugs, and
thermocouple cables to the new regulator board.
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10.1 Upgrading to Superspeed
Service Manual inFire HTC speed
10.1.4.5
Installing the new control panel
Installing the new control panel
1. Plug all of the connectors into the the rear side of the new control
panel.
2. Insert the new control panel and screw it down with the 4 nuts (M5.5).
10.1.4.6
Final work
Final work
TX20
1. Push the drawer inside and screw it tightly with 2 screws (TX20).
2. Plug in the power plug.
3. Switch the unit on at the main switch.
4. Carry out a function test.
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10.1 Upgrading to Superspeed
10.1.4.7
Updating the control software
Updating the control software
Update the control software in the following cases:
● if the software version number is smaller than DOES0033
● if a newer software version is available
båÖäáëÜ
✔ The furnace is switched off.
1. DANGER! Do not touch live components! Remove the protective cap
and connect the programming device "e-lab" to the port marked with
the red arrow point.
2. Switch the furnace on.
3. Press the "prog" key on the programming device.
4. Wait for the beep after a few seconds.
Tip: it could be the case that the batteries of the programming device
are empty. To charge these the programming device must be
connected to a switched on computer for approximately 1 hour via
USB cable.
5. Switch the furnace off.
6. Remove the programming device and place the protective cap back
onto the port.
7. Switch the furnace on.
8. Press the "F" key.
 The cursor appears on the LCD display.
9. Enter the following key sequence: 0 8 5 4 0
 The software is activated.
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10.1 Upgrading to Superspeed
Service Manual inFire HTC speed
The current software has the designation DOES0033. Some program
positions are already designated in the software that do not actually
contain functional temperature profiles. This is the case for program
positions 7–8, 12–16, and 18–19. The software generates the following
program allocation in the furnace control:
Fragment program table
Program
No.
Designation
01
Sirona inCoris TZI/ZI super speed single
02
Sirona inCoris TZI/ZI speed
03
Sirona inCoris TZI/ZI speed + dry
04
Sirona inCoris TZI/ZI speed + air
05
Sirona inCoris TZI/ZI classic
06
Sirona inCoris AL classic
07
Sirona inCoris CC (optional)
09
VITA In-Ceram YZ speed
10
VITA In-Ceram YZ classic
11
VITA In-Ceram AL classic
14
Dentsply Crypton (optional)
17
IVOCLAR VIVADENT IPS e.max ZirCAD
20
Free
21
Free
22
Free
23
Free
24
Free
25
Free
26
Free
27
Sintering with predrying
28
Sintering with predrying
29
Sintering with ventilation
30
Sintering with ventilation
The present software together with the current control allow the so-called
"super speed" sintering of single crowns on program position 1. The
program sequence differs substantially from the traditional sintering
programs.
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10.1 Upgrading to Superspeed
For super speed sintering, the furnace must be preheated to operating
temperature 1,580°C / 2,876°F After preheating (approximately 32 mins),
the user has a time window available of 30 mins in which the Superspeed
cycle can be activated.
Progra
m No.
Program designation
Preheating time + cycle time Furnace type
(until door opening)
01
Sirona inCoris TZI/ZI super speed single
30 mins + 10.8 mins
220 V, 16 A, 50 Hz
47 mins + 11.2 mins
220 V, 13 A, 50 Hz =
GB version
72 mins + 15.8 mins
180 V, 16 A, 60 Hz
If the user does not take any action by the end of this time slot, the furnace
will switch off again.
båÖäáëÜ
The exact program sequence can be viewed in the following diagram.
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Service Manual inFire HTC speed
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10.2 Upgrading to non-precious metal sintering
10.2 Upgrading to non-precious metal sintering
Upgrading to non-precious metal sintering
10.2.1
Scope of supply
● Gas management module
Scope of supply
båÖäáëÜ
● Sinter cover, 4-part
● Coupling kit
● Door change adapter
● Changing door, ceramic sintering
● Furnace door with gas socket
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10.2 Upgrading to non-precious metal sintering
Service Manual inFire HTC speed
●
10.2.2
Zirconium oxide beads, Ø = 1.25 mm
Required tools
● Screwdriver, Torx®/TX20
Required tools
20
Screwdriver, Torx/TX10
● Screwdriver, Torx® / TX10
10
Center punch (general purpose)
● Center punch
Hammer (general purpose)
● Hammer
Graphics: Open-end wrench, neutral
Open-end wrench SW7
● Open-end wrench SW7
Open-end wrench SW11
● Open-end wrench SW11
● Suitable battery screw or drilling machine
Twist drill
Twist drill 3 mm
● Twist drill 3 mm
Twist drill 9.7mm
● Twist drill 9.7mm
● Step drill
Step drill
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10.2 Upgrading to non-precious metal sintering
10.2.3
Preparation
Preparation
10.2.3.1
Disconnect the power supply
Disconnect the power supply
WARNING
Electrical power!
Potentially lethal shock hazard!
➢ Do not touch live cables and components with wet hands.
➢ Please observe the accident prevention regulations for handling
electricity.
➢ Disconnect the power supply of the unit and ensure that the power
will not be inadvertently switched on.
10.2.3.2
Opening the rear panel of the unit
Opening the rear panel of the unit
✔ The power supply is disconnected.
1. Open the rear panel of the unit.
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båÖäáëÜ
➢ Disconnect the power supply of the unit before installation,
maintenance, cleaning, and repair work, and ensure that the power
will not be inadvertently switched on.
10 Upgrading
Sirona Dental Systems GmbH
10.2 Upgrading to non-precious metal sintering
Service Manual inFire HTC speed
2. Unplug the (green & yellow colored) grounding cable.
10.2.4
Procedure
Procedure
10.2.4.1
Install the front coupling
Install the front coupling
Mark and punch the front hole
✔ The unit is switched off and its power plug is disconnected.
1. Mark the position of the drill hole on the left side of the front of the
furnace; make it 16 mm from the left edge and 30 mm from the bottom
edge.
2. Center punch the mark � .
Drill the front hole
1. Drill a 3 mm pilot hole with a suitable cordless screwdriver or a drilling
machine.
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10.2 Upgrading to non-precious metal sintering
2. Drill the main hole at the front with a diameter of 9.7 mm.
Insert the coupling
1. Remove the coupling from the flexible hose of the furnace door with
gas socket.
2. Unscrew the nut on the coupling.
4. Screw the nut on the rear side on the coupling and tighten it (openend wrench SW11 or socket wrench SW11).
10.2.4.2
Install the rear coupling
Install the rear coupling
Mark and punch the rear hole
1. Mark the position of the drill hole on the rear side of the furnace; make
it 250 mm from the left edge and 30 mm from the top edge (the lower
edge of rear panel opening.)
2. Center punch the mark.
Drill the rear hole
1. Drill a 3 mm pilot hole with a suitable cordless screwdriver or a drilling
machine.
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båÖäáëÜ
3. Insert the coupling.
10 Upgrading
Sirona Dental Systems GmbH
10.2 Upgrading to non-precious metal sintering
Service Manual inFire HTC speed
2. Drill the main hole on the rear with a diameter of 14 mm. Use a step
drill for this.
Tip: It is advisable to attach a boundary marker on the step drill for 14
mm.
10.2.4.3
Installing the gas management module
1. Remove the cable duct cover.
Installing the gas management module
2. Remove the screws on the E-module (TX20) and replace these with
spacer bolts (open-end wrench SW7).
3. If the grounding cable comes out of the cable duct at the side, lay this
again so that it emerges upwards from the cable duct.
4. Screw the gas management module with the previously removed
screws onto the spacer bolts.
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10.2 Upgrading to non-precious metal sintering
båÖäáëÜ
5. Insert the hoses and cable into the cable duct.
6. Insert the open hose end into the front coupling from the rear.
7. Unscrew the nuts on the coupling, insert the coupling, and screw the
nuts from the rear side tightly (open-end wrench SW11 or socket
wrench SW11).
8. Attach the cable duct cover.
9. Lay the gray cable with the KL2A connector and the grounding cable
in the drawer area. NOTICE! The KL2A connector must be
disassembled. Mark the cable before the disassembly.
10.2.4.4
Connecting cables to the regulator board
1. Open the drawer.
Connecting cables to the regulator board
TX20
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Service Manual inFire HTC speed
2. Pull the gray cable to the regulator board.
3. Connect the two black cables "1" and "2" to the previously
disassembled KL2A connector.
4. Insert the KL2A connector.
5. Replace the present 2-way flag with the supplied 3-way flag (for a
third connection option).
6. Put on the cable lug of the grounding cable (gray cable).
10.2.4.5
Installing the rear panel of the unit
1. Reconnect the grounding cable to the rear panel of the unit.
Installing the rear panel of the unit
2. Reinsert the rear cover of the unit and screw it on tight.
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Service Manual inFire HTC speed
10.2 Upgrading to non-precious metal sintering
10.2.4.6
Final work
Final work
TX20
båÖäáëÜ
1. Push the drawer inside and screw it tightly with 2 screws (TX20).
2. Plug in the power plug.
3. Switch the unit on at the main switch.
10.2.4.7
Modifying the furnace door
1. Close the furnace door by pressing the lift button.
Modifying the furnace door
2. Unscrew the 2 screws on the retaining plate.
3. Move the furnace door downwards and remove the door panel.
4. Unscrew the retaining plate from the lift carriers.
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10 Upgrading
Sirona Dental Systems GmbH
10.2 Upgrading to non-precious metal sintering
Service Manual inFire HTC speed
5. NOTICE! Pay attention to the installation direction (see picture)!
Screw on the supplied door change adapter � .
10.2.4.8
Assembling the furnace door with the gas socket
1. Insert the middle guiding tube and tighten it.
Assembling the furnace door with the gas socket
2. Insert the lower door insulation.
3. Insert the 3 ceramic tubes and put on the upper door insulation.
4. Ensure that the door guide pin is locked in place in the locating hole
(A) provided for this purpose when inserting the furnace door.
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10 Upgrading
10.2 Upgrading to non-precious metal sintering
5. Push the furnace door until the end stop in the furnace fastening
clamp. Unlock the guide pin by pulling it and turning it counterclockwise. Now pull the door forward carefully until the guide pin locks
in place in the corresponding locating hole in the furnace fastening
clamp.
båÖäáëÜ
6. Insert the tube of the furnace door with gas socket into the coupling.
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11 RS232 interface
Sirona Dental Systems GmbH
11.1 Temperature difference output
Service Manual inFire HTC speed
11
RS232 interface
RS232 interface
11.1 Temperature difference output
Temperature difference output
The sintering process can be documented on a PC connected to the
inFire HTC speed via the RS-232 interface. To do this, proceed as
follows:
✔ The program "Hyper Terminal" must be installed ("Start" / "Programs"
/ "Accessories" / "Communication" / "Hyper Terminal").
1. Connect the PC to the inFire HTC speed via the RS-232 cable.
2. Start the Windows program "Hyper Terminal" on the PC under "Start"
/ "Programs" / "Accessories" / "Communication" / "Hyper Terminal".
3. Define the connection during the first start, e.g. with the name "inFire
HTC" and a telephone symbol with a book standing next to it.
4. Under "Establish connection via": select the COM port via which the
PC is connected to the inFire HTC speed (e.g. COM1) and click "OK".
5. Select the connection settings as follows:
Bits per second: 9,600
Data bits: 8
Parity: None,
Stop bits: 1
Flow control: None
6. Click "OK".
 The telephone icon in Hyper Terminal shows the telephone
receiver lifted, i.e. the system is now actively recording.
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11 RS232 interface
11.1 Temperature difference output
 In the left column (A), the encoded temperature change of the
corresponding heat curve is shown at defined times. In the right
column (B), the difference is depicted between the encoded set
increase and actual increase. As long as the value in the right
column is zero, the specified heat curve validated by Sirona is
precisely adhered to. For systematic deviations during the actual
sintering process, contact the Sirona customer service center.
Temperature deviations may occur during the warm-up and
cooling phases. These will not cause any operating faults.
båÖäáëÜ
Tip: Each time Hyper Terminal is restarted, the configured connection can
be directly selected by clicking on the defined icon with the corresponding
name (e.g. "Start" / "Programs" / "Accessories" / "Communication" /
"Hyper Terminal" / inFire HTC).
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