Bosch TRZ 12 T Manual De Instrucciones página 6

Contents
1 Safety Notes
2 Details of Unit
3 Mounting
4 Electrical Connection
5 Operation
6 Important Notes
7 Error Localisation
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.
6
2 Details of Unit
6
2.1 Application
• Room thermostat with daily timer (TRZ 12 T)
6
or weekly timer (TRZ 12 W)
• 2-point burner control of the one-stage heat-
7
ing units listed below:
7
Heating Unit
8
KN/K..-8 E/EC
KN..-8 P/KP
9
Heating equipment
with Bosch Eurotronic
9
Other manufacturers
• Controls heating circulation pumps, etc.
• Intermittent pump mode with MB 40
2.2 Technical Data
Height
Width
Depth
Rated voltage, regulator
Switching timer
Rated current,
switch contacts
Regulating range
Regulator output
Permissible environmental
temperature
Operating reserve
Protection class/Test class
Minimum switch-on time
TRZ 12 T/W
Elec. connec-
tion diagram
Fig.
5
Fig.
6
Fig.
7
Fig.
8
82 mm
165 mm
42 mm
230 V AC
24 V DC
3 (1.5) A
6...30 °C
2-Point,
potential-free
0...35 °C
50 h
II/II
1.5 min.