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TRZ 12 T/W
English
Contents
1 Safety Notes 6
2 Details of Unit 6
3 Mounting 7
4 Electrical Connection 7
5 Operation 8
6 Important Notes 9
7 Error Localisation 9
1 Safety Notes
Correct functioning is ensured only when these
instructions are observed. We request that this
booklet be given to the customer.
Before connecting the regulator, the volt-
age supply (230 V, 50 Hz) to the heating
unit or the regulator must be interrupted.
The regulator is to be connected only in ac-
cordance with the circuit diagram with the
respective heating units.
The connection must be to the heating unit
and under no circumstances to an
exter-
nal voltage source
.
Protection against contact:
After the
electrical connection, the protective cover
must be mounted again with screws in all
cases.
2 Details of Unit
2.1 Application
Room thermostat with daily timer (TRZ 12 T)
or weekly timer (TRZ 12 W)
2-point burner control of the one-stage heat-
ing units listed below:
Controls heating circulation pumps, etc.
Intermittent pump mode with MB 40
2.2 Technical Data
Heating Unit
Elec. connec-
tion diagram
KN/K..-8 E/EC
Fig.
KN..-8 P/KP
Fig.
Heating equipment
with Bosch Eurotronic
Fig.
Other manufacturers
Fig.
Height 82 mm
Width 165 mm
Depth 42 mm
Rated voltage, regulator 230 V AC
Switching timer 24 V DC
Rated current,
switch contacts
3 (1.5) A
Regulating range 6...30 °C
Regulator output
2-Point,
potential-free
Permissible environmental
temperature
0...35 °C
Operating reserve 50 h
Protection class/Test class
II/II
Minimum switch-on time 1.5 min.
5
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