Settings On The Bosch Heatronic; Operating The Bosch Heatronic; Selecting The Pump Control Mode For Central Heating Mode (Service Function 2.2); Setting The Anti-Cycle Time (Service Function 2.4) - Worcester GREENSTAR HE combi Series Installation And Servicing Instructions

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.
5
2 1
6 720 610 332-30.1O
3 4
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:
Note the positions of the temperature
i
controls and
settings, return the temperature controls
to their original positions.
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
display shows = =.
B Then turn the
temperature control to select the
required function.
Service function
Pump control mode
Anti-cycle time
Max. CH flow
temperature
Switching difference
Max. heating output
Constant hot water
cycle time
Table 14
The service function 5.0 may be reset.
28
. After completing the
simultaneously until the
Code no. See page
2.2 28
2.4 28
2.5 29
2.6 29
5.0 29
6.8 29
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
play shows [ ].
B Level 2: press and hold the
taneously until the display shows [ ].
After completing the settings
B Reset the temperature controls
original positions.
6.2.2 Selecting the pump control mode for cen-
tral heating mode (Service Function 2.2)
If an outside temperature driven control
i
unit is connected, pump control mode 3 is
automatically activated
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).
If the appliance is connected to an out-
i
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.
button until the dis-
and buttons simul-
and to their
6 720 610 576 GB (03.02)