Honeywell TZI 5-15/100, TZI 7-25/20, TZI 7.5-12/100, TZI 7.5-20/33, TGI 5-15/100 Technical Information
...Page 1
Industrial & Commercial Thermal
Ignition transformers TZI, TGI
Technical Information · GB
8 Edition 06.16
• Electrical ignition of gas burners
• Ignition and burner control with a single electrode possible
• TZI 7,520/33R complies with CSA
Page 2
Contents
Ignition transformers TZI, TGI ....................... 1
Contents ............................................2
1 Application ........................................3
1.1 Examples of application ...........................5
1.1.1 Double-electrode operation...........................5
1.1.2 Single-electrode operation............................5
2 Certification .......................................6
3 Function ...........................................7
3.1 Connection diagrams .............................. 7
4 Selection ..........................................8
4.1 Selection table .....................................8
4.1.1 Type code..............................................8
5 Project planning information . . . . . . . . . . . . . . . . . . . . . . 9
5.1 Operation ..........................................9
5.2 Installation .........................................9
5.3 Cable selection ....................................9
5.3.1 Ignition cable ..........................................9
5.4 Reduction of EMC, wiring.........................10
5.5 Single-electrode operation .......................10
5.6 Intermittent operation/Star electrodes...........10
5.7 Duty cycle .........................................11
6 Accessories.......................................12
6.1 High-voltage cable ...............................12
6.2 Radio interference suppressed electrode
adapters ..............................................12
7 Technical data ....................................13
7.1 Dimensions ........................................14
Feedback ...........................................15
Contact.............................................15
TZI, TGI · Edition 06.16 2
= To be continued
▼
Page 3
Application
TZI 5-15/100, T ZI 7-25/20,
TZI 7,5-12/100, TZI 7,5-20/33 TGI
1 Application
Ignition transformers TZI and TGI are designed for
high-voltage spark ignition of gas burners and gasignited or directly ignited oil burners. The ignition
transformers can also be used on burners with singleelectrode operation; the ignition current and ionization
current flow over a common electrode. The ignition
transformer TZI must be mounted in a housing, e.g. in a
control cabinet. It fulfils the requirements for enclosure
IP 00. Ignition transformer TGI in its die-cast aluminium
housing meets the requirements for enclosure IP 54. It
is suitable for on-site mounting near to the burner.
TZI, TGI · Edition 06.16 3
Page 4
Application
Bogie hearth forging furnace
in the metallurgical industry
Intermittent shuttle kiln
in the ceramics industry
Walking beam furnace
with overhead firing
TZI, TGI · Edition 06.16 4
Page 5
Application
1.1 Examples of application
L1
N
IFD 258
1.1.1 Double-electrode operation
Ignition using ignition electrode
Ignition transformer TGI is supplied with voltage via
VAS
TGI
GIK
BIO/
BIC
the automatic burner control unit IFD 258. The ignition
transformer generates a high voltage. This high voltage
creates ignition sparks between the ignition electrode
and burner ground. After the burner start, a current
flows via the ionization electrode for flame control.
VR..R
1.1.2 Single-electrode operation
Ignition using an ignition and ionization electrode.
L1
N
IFD 258
After burner start, a flame control current flows via the
same electrode that is also used for ignition.
VAS
TGI
GIK
BIO/
BIC
VR..R
TZI, TGI · Edition 06.16 5
Page 6
Certification
2 Certification
Ignition transformers TZI and TGI are built for applications pursuant to the Machinery Directive 2006/42/EC.
TZI 7,520/33R
Complies with Canadian Standards Association
CSA C22.2 No. 131962.
TZI, TGI · Edition 06.16 6
Page 7
Function
3 Function
Z
I
H
br
gn/ye
bk
bl
L1
N
3.1 Connection diagrams
Ignition: double-electrode operation
Burner control unit
H
br
gn/ye
∅ 7 mm (0.275")
H
Legend
H High-voltage connection
br Connection cable brown
bk Connection cable black
bl Connection cable blue
gn/ye Connection cable green/yellow
bk
bl
Ignition: single-electrode operation
Single-electrode operation is possible only in conjunction with suitable automatic burner control units. The
L1
N
switchover between ignition and monitoring is performed by the automatic burner control unit.
High-voltage connection
Cut end of high-voltage cable is inserted into the
shroud and screwed onto the wood screw (H).
TZI, TGI · Edition 06.16 7
Page 8
Selection
4 Selection
4.1 Selection table
R W
T ZI 5-1 5/100
T ZI 7-25 /20
T ZI 7,5 -12 /1 00
TZI 7,5-20/33
TG I 5 -15/ 100
TGI 7-25/20
TGI 7,5 -12/1 00
TGI 7,5-20/33
Order example
TZI 5-15/100W
= standard, = available
4.1.1 Ty pe c ode
Code Description
TZI
TGI
5
7
7,5
-12
-15
-20
-25
/20
/33
/100
R
W
Ignition transformer
Ignition transformer, enclosed
High voltage: 5 kV
7 kV
7.5 k V
Output current: 12 mA at 50 Hz (9 mA at 60 Hz)
15 mA at 50 Hz (11 mA at 60 Hz)
20 mA at 50 Hz (15 mA at 60 Hz)
25 mA at 50 Hz (18 mA at 60 Hz)
Duty cycle: 20%
33%
100%
Mains voltage: 115 V
230 V
TZI, TGI · Edition 06.16 8
Page 9
Project planning information
5 Project planning information
5.1 Operation
The ignition transformers are suitable only for applica-
tions for igniting gas burners and gas-ignited or directly
ignited oil burners. An automatic burner control unit
with integrated fuse (max. 4 A) must be provided to
activate the ignition transformers. Do not operate the
transformers when no ignition sparks are created (distance between spark electrode and burner ground = 2 ±
0.5 mm). The duty cycle and the ambient temperature
must not exceed the permissible limits.
5.2 Installation
Installation position for TZI and TGI: install with the
connections facing down. Position the ignition trans-
former right next to the burner (recommended ignition
cable length: max. 5 m, recommended < 1 m).
TZI
The length of the mains cable is approx. 410 mm.
Fix the ignition transformer in a housing or control
cabinet.
5.3 Cable selection
Use mains cable suitable for the type of operation and
complying with local regulations.
Install an equipotential bond (4 mm
local regulations) between burner and ignition transformer.
TGI
The TGI housing has two A/F 27 cable glands with dou-
ble seal inserts for two cables up to 7 mm in diameter. A
seal insert for 10 to 14 mm is enclosed and can be used
in the A/F 27 cable gland, see page 14 (Dimensions).
5.3.1 Ignition cable
Use unscreened high-voltage cable for the ignition cable, see page 12 (Accessories). The ignition capacity
is lower when using a screened ignition cable.
Ignition cable length:
Recommended < 1 m, max. 5 m. The longer the ignition
cable, the lower the ignition capacity.
Use radio interference suppressed terminal boots only
on the burner (with 1 kΩ resistor), see page 12 (Accessories).
2
, compliant with
TZI, TGI · Edition 06.16 9
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Project planning information
5.4 Reduction of EMC, wiring
Avoid external electrical interference.
Lay cables individually and, if possible, not in a metal
conduit.
Do not lay UV/ionization cable and ignition cables to-
gether and lay them as far apart as possible.
Screw the ignition cable securely into the high-voltage
connection on the ignition transformer and run to the
burner by the shortest possible route, see page 7
(High-voltage connection).
Use radio interference suppressed terminal boots only
on the burner (with 1 kΩ resistor), see page 12 (Accessories).
5.5 Single-electrode operation
Single-electrode operation is possible only in conjunction with suitable automatic burner control units.
For single-electrode operation, wire an equipotential
bond between the burner and the automatic burner
control unit, see page 7 (Ignition: single-electrode
operation). Ensure that the wiring has been done correctly, otherwise the connected units will be damaged.
5.6 Intermittent operation/Star electrodes
We recommend using 7.5 kV ignition transformers for
On/Off intermittent operation or when using burners
with star electrodes.
TZI, TGI · Edition 06.16 10
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Project planning information
100
Duty cycle [%]
Duty cycle [%] × 180 s
20 [%] × 180 s
5.7 Duty cycle
The duty cycle indicates for how long the ignition transformer can be switched on within 180 s, without it be-
ing overloaded.
80
60
40
20
0
-20 0 20 40 60
Ambient temperature [°C]
For ignition transformers, the duty cycle is dependent
on the ambient temperature.
TZI/TGI duty cycle in % – see page 13 (Technical
data).
Converting the duty cycle into seconds:
Example
Ignition transformer TZI 725/20W with a duty cycle of
20% for an ambient temperature of 20 to +35°C.
Duty cycle =
100%
= 36 s
In an ambient temperature of 20 to +35°C, this results
in a maximum duty cycle of 36 s within 180 s for the
ignition transformer.
For an automatic burner control unit with an ignition
time t
= 6 s, for example, the resultant timing cycle is a
Z
maximum of 2 ignitions per minute.
0 60 120 180
Legend
tZ = 6 s
t [s]
Duty cycle [s] =
TZI, TGI · Edition 06.16 11
100%
Page 12
Accessories
6 Accessories
6.1 High-voltage cable
FZLSi 1/7 50°C (58°F) to 180°C (356°F),
Order No. 04250410,
FZLK 1/7 5°C (23°F) to 80°C (176°F),
Order No. 04250409.
6.2 Radio interference suppressed electrode adapters
Plug cap, 4 mm (0.16 inch), interference-suppressed,
Order No. 04115308.
Straight adapter, 4 mm (0.16 inch), interference-suppressed,
Order No. 04115307.
Straight adapter, 6 mm (0.2 inch), interference-suppressed,
Order No. 04115306.
TZI, TGI · Edition 06.16 12
Page 13
Technical data
7 Technical data
Type Input Output Duty cycle** Enclosure Weight
V AC Hz* A* V mA* % kg
TZI 5-15/100W 230 50 (60) 0.45 (0.35) 5000 15 (11) 100 IP 00 1.5
T ZI 7-25 /20 W 230 50 (60) 1.1 (0.8) 7000 25 (18) 20 IP 00 1.5
TZI 7,5-12/100W 230 50 (60) 0.6 (0.45) 7500 12 (9) 100 IP 00 2
TZI 7,5-20/33W 230 50 (60) 0.9 (0.7 ) 7500 20 (15) 33 IP 00 2
TZI 5-15/20R 115 50 (60) 1 (0.7) 5000 15 (11) 20 IP 00 0.9
T ZI 5-1 5/100R 115 50 (60) 0.9 (0.7 ) 5000 15 (11) 100 IP 00 1.5
T ZI 7-25 /20 R 115 50 (60) 2.2 (1.6) 7000 25 (18) 20 IP 00 1.5
T ZI 7,5 -12 /1 00 R 115 50 (60) 1.2 (0.9) 750 0 12 (9) 100 IP 00 2
TZI 7,5-20/33R 115 50 (60) 1.8 (1.35) 7500 20 (15) 33 IP 00 2
TGI 5-15/100W 230 50 (60) 0.45 (0.35) 5000 15 (11) 100 IP 54 3
TGI 7-25/20W 230 50 (60) 1.1 (0.8) 7000 25 (18) 20 IP 54 3
TGI 7,5-12/100W 230 50 (60) 0.6 (0.45) 75 00 12 (9) 100 IP 54 3.5
TGI 7,5-20/33W 230 50 (60) 0.9 (0.7 ) 7500 20 (15) 33 IP 54 3.5
TG I 5 -15/ 100 R 115 50 (60) 0.9 (0.7) 5000 15 (11) 100 IP 54 3
TGI 7-25/20R 115 50 (60) 2.2 (1.6) 7000 25 (18) 20 IP 54 3
TGI 7,5 -12/1 00 R 115 50 (60) 1.2 (0.9) 7500 12 (9) 100 IP 54 3.5
TGI 7,5-20/33R 115 50 (60) 1.8 (1.35) 7500 20 (15) 33 IP 54 3.5
* Values in brackets apply to 60 Hz.
** For temperatures between -20 and +35°C.
Converting the duty cycle into seconds, see page 11
(Duty cycle).
Ambient temperature:
20 to +60°C.
TZI, TGI · Edition 06.16 13
Page 14
Technical data
7.1 Dimensions
TZI
Length of connection cable: approx. 410 mm
73
92
7
69
74
86
73
92
7
TZI 5-15/100, T ZI 7-25/20 TZI 7,5-12/100, TZI 7,5-20/33
TGI
TGI
95
180
103
∅ 5.0
M20 (A/F 27)
M20 (A/F 24)
140
165
92
99
110
TZI, TGI · Edition 06.16 14
Page 15
Feedback
Kromschröder AG
Michael Rehkamp
m.rehkamp@kromschroeder.com
Osnabrüc
k
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Tel +49 541 12140
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info@kromschroeder.com
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TZI, TGI · Edition 06.16
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