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Worcester-Bosch Greenstar Sense ll Manual

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Product information
Sense ll – 6 720 812 775 (2014/10)
Factory default
Adjustable
1) Classification of the controller according to EU
Regulation 811/2013 for the labelling of system
packages
2) Contribution to seasonal energy efficiency for central
heating in %
2.2 Range of functions
These instructions describe the maximum functional scope of
the equipment. Your attention is drawn to the importance of
the system structure in the relevant places. The settings ranges
and basic settings are determined by the individual installation
and may deviate from the information provided in these
instructions.
For example:
• Settings for a variety of heating circuits are only available if
two or more heating circuits are installed.
• Settings for a variety of DHW systems will only be available
if two DHW systems are installed (e.g. in an apartment
building, where the DHW requirements of the residents can
vary greatly).
• Information about additional heating system components
(e.g. solar system) are only displayed if the corresponding
system components are installed.
• Certain menu settings (e.g. heat source settings) are only
available for certain types of heat source or if no cascade
module (e.g. MC 400) is installed.
Consult your Installer if you have further questions.
2.3 Function as controller
The Sense ll controller can control up to 4 heating circuits. In
each heating circuit of the system, the heating controls operate
in one of main control modes. Depending on your
requirements, your Installer will select and set up one of these
modes.
The main control modes are:
•Room temperature compensated:
– The room temperature is controlled based on the
measured room temperature
– The controller sets the heat output required from the
heat source or the flow temperature, technical terms
page 43.
•Weather compensated:
– The room temperature is controlled based on the
outside temperature
– The controller sets the flow temperature in accordance
with a simplified or optimised heating curve set up by
the installer.
•Weather compensated with influence of room
temperature:
– The room temperature is controlled based on the
outside temperature and the measured room
temperature
– The controller sets the flow temperature in accordance
with a simplified or optimised heating curve set up by
the installer.
•Constant: Control with constant temperature independent
of outside or room temperature, e.g. for swimming pools or
ventilation units. Flow temperature can be set in the
service menu only by the Installer.
Sense ll function class1) [%]1),2)
Sense ll
Room temperature-
dependent, modulating
V 3.0
Sense ll & outside
temperature sensor
Outdoor temperature-
dependent, modulating
burner
II 2.0
Outdoor temperature-
dependent, ON/OFF burner
III 1.5
Room temperature-
dependent, modulating
burner
V 3.0
Weather-compensated with
room temperature influence,
modulating burner
VI 4.0
Weather-compensated with
room temperature influence,
ON/OFF burner
VII 3.5
Table 2 Product data with regard to energy efficiency of
Sense ll
Rule of thumb for room temperature-
dependent control and for weather-
compensated control with influence of room
temperature:
the thermostatic valves in the reference room
(the room in which the controller or a remote
control is installed) must be fully open!
… 4 …


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