Individual Settings; Mechanical Settings; Setting The Boiler Flow Temperature; Settings On The Bosch Heatronic - Worcester GREENSTAR 29 Installation And Servicing Instructions

Individual settings

6 Individual settings
6.1

Mechanical settings

6.1.1

Setting the boiler flow temperature

The central heating flow temperature can be set to
between 50˚C and 88˚C.
Limited maximum setting for low-temperature
operation
The temperature control is factory limited to setting E,
giving a maximum flow temperature of 75˚C.
Adjustment of the heating output to the calculated heat
demand is not required by the heating systems regula-
tions.
Removing the maximum setting limit
For heating systems which require higher flow temper-
atures, the maximum setting limit can be removed.
B Lift off the yellow button on the temperature control
with a screwdriver.
6 720 611 137-13.1O
Fig. 35
B Rotate yellow button through 180° and replace (dot
facing inwards).
The CH flow temperature is no longer limited.
Control setting CH flow temperature
1 approx. 50˚C
2 approx. 55˚C
3 approx. 60˚C
4 approx. 65˚C
5 approx. 70˚C
E approx. 75˚C
max approx. 88˚C
Table 11
26
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, order no.
7 181 465 346.
5
2
3
Fig. 36 Appliance controls
1 Service button
2 "Chimney sweep" button
3 Temperature control for boiler flow
4 Function control
5 Display
Selecting service function:
Note the positions of the temperature
i
control. After completing the settings, re-
turn the temperature controls to their orig-
inal 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 flow temperature control to select the
required function.
Service function
Anti-cycle time
Max. flow
temperature
Switching difference
Max. heating output
Table 12
The service function 5.0 may be reset.
1
6 720 611 137-14.1O
4
simultaneously until the
Code no. See page
2.4 27
2.5 27
2.6 27
5.0 27
6 720 611 137 GB (03.02)