Manual Bosch TRZ 12 T (page 6 of 84) (English, German, Dutch, Danish, French, Italian, Polish, Spanish)

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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.

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Bosch TRZ 12 T Manual

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