6
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.
Содержание TRZ 12 T
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