Setting Maximum Temperature; Configuring And Installing A Priority Relay - Bosch Tronic 4000 Series Installation And Operating Instructions Manual

Installation (only for approved contractors)
TR... 11/ TR... 15/
13 18/21
13 kW 21 kW
(Factory (Factory
settings) Settings)
18 kW
11 kW
15 kW
Table 5 Configuring the power
If the power of the appliance is changed,
▶ Check which flow limiter should be used ( chapter 10).

5.9.2 Setting maximum temperature

▶ Use Jumpers J4 and J5 to set the maximum temperature of
the appliance, according to the table below.
Max. Temperature
Maximum Temperature 57 °C
(Factory Settings)
Maximum Temperature 53 °C
(EN60335 - if the appliance
supplies water for showering)
20
TR... 21/ Jumpers: J2 - J3
24/27
27 kW
(Factory
Settings)
24 kW
21 kW
Jumpers: J4 - J5
Max. Temperature
Maximum Temperature 48 °C
Maximum Temperature 42 °C
Table 6 Setting maximum temperature

5.9.3 Configuring and installing a Priority Relay

For the appliance to work with a priority electric circuit, a
special priority relay (BZ 45L21) is required. Other types of
priority relays, with the exception of electronic priority relays,
may not work correctly.
Fig. 34 Wiring diagram
▶ Remove Jumper J1 to activate the Priority Relay mode in
the appliance's electronics system, see table below.
Tronic 4000 – 6721830066 (2021/06)
Jumpers: J4 - J5