6 720 610 576 GB (03.02)
28
Individual settings
6.2 Settings on the Bosch Heatronic
6.2.1 Operating the Bosch Heatronic
The Bosch Heatronic enables easy setting and check-
ing of a large number of appliance functions.
This description is limited to those functions required
for commissioning.
For a full description of all available functions, please
refer to the Service booklet for the Engineer,
number 7 181 465 346.
Fig. 37 Appliance controls
1 Service button
2 “Chimney sweep” button
3 Temperature control for central heating
4 Temperature control for hot water
5 Display
Selecting service function:
The service functions are subdivided into two levels:
Level 1 comprises service functions up to function 4.9,
while Level 2 consists of the service functions from 5.0
upwards.
B To select a service function on Level 1: press and
hold the button until the display shows – –.
B To select a service function on Level 2: press and
hold the buttons and simultaneously until the
display shows = =.
B Then turn the temperature control to select the
required function.
The service function 5.0 may be reset.
Entering a setting
B To enter the setting for a function, turn the tempera-
ture control .
Storing a setting
B Level 1: press and hold the button until the dis-
play shows [ ].
B Level 2: press and hold the and buttons simul-
taneously until the display shows [ ].
After completing the settings
B Reset the temperature controls and to their
original positions.
6.2.2 Selecting the pump control mode for cen-
tral heating mode (Service Function 2.2)
The choice of settings is as follows:
• Control Mode 1
For heating equipment without a control unit.
The pump is controlled by the central heating flow
temperature control.
• Control Mode 2 (factory setting)
For heating systems with room thermostat.
The central heating flow temperature control controls
only the gas, the pump is not affected. The room ther-
mostat controls both the gas and the pump.
The pump and fan have an overrun time of between
15 s and 3 min.
• Control Mode 3
The pump is controlled by the outside temperature
driven control unit. In summer mode, the pump oper-
ates only for hot water mode.
6.2.3 Setting the anti-cycle time
(Service Function 2.4)
This service function is only active if Service Function
2.7, automatic anti-cycle time, is deactivated.
The anti-cycle time can be set to between 0 and 15 min-
utes (is factory set to 3 minutes).
If the setting 0 is entered, the anti-cycle time is inactive.
The shortest possible anti-cycle time is 1 minute (rec-
ommended for single-pipe and hot-air heating systems).
i
Note the positions of the temperature
controls and . After completing the
settings, return the temperature controls
to their original positions.
Service function Code no. See page
Pump control mode 2.2 28
Anti-cycle time 2.4 28
Max. CH flow
temperature 2.5 29
Switching difference 2.6 29
Max. heating output 5.0 29
Constant hot water
cycle time 6.8 29
Table 14
6 720 610 332-30.1O
5
2 1
4
3
i
If an outside temperature driven control
unit is connected, pump control mode 3 is
automatically activated
i
If the appliance is connected to an out-
side-temperature controlled heating pro-
grammer, the anti-cycle time does not
need to be set on the appliance and is op-
timised by the programmer instead.
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