6 720 820 872 (2016/12)
CR 400 | CW 400 | CW 800
4 | Product information
2
Product information
2.1
Product description
•
The purpose of the C 400 user interface is to control up to
a maximum of 4 heating circuits (CW 800: up to a
maximum of 8 heating circuits). In addition 2 cylinder
charging circuits, one solar DHW heating as well as one
solar central heating backup can be controlled.
•
The user interface has time programs:
–
Heating systems: for each heating circuit 2 time
programs with 6 switching times per day are available
(exception: for one constant heating circuit there is
only 1 time program).
–
Domestic hot water: a time program for DHW heating
and a time program for the DHW circulation pump for
each hot water circuit, each with 6 switching times per
day.
•
The user interface displays information about the heat
source and heating system and is used to change the
settings.
•
Installation possibilities:
–
In a heat source with an EMS 2 BUS interface (Energy
Management System) or a 2-wire BUS interface.
–
On a wall with BUS connection to a heat source with a
2-wire BUS interface or EMS 2.
•
After operating for ½ 1 hour, the user interface has a power
reserve of at least 8 hours. If the power failure lasts longer
than the power reserve, the time and date will be deleted.
All other settings are retained.
•
The functional scope and thus the menu structure of the
user interface are determined by the configuration of the
system. These instructions describe the maximum
functional scope of the equipment. Your attention is drawn
to the dependency on the system configuration in the
relevant places. The adjustment ranges and default
settings may differ from the information in these
instructions. Depending on the software version of the user
interface, the texts shown in the display may differ from the
texts in these instructions.
2.1.1 Control types
The following main control types are available:
•
Room temperature-dependent
: Automated control of the
flow temperature or the heat output of the heat source
based on the room temperature. Installation of a user
interface in the reference room is required.
•
Weather-compensated
: Automated control of the flow
temperature based on the outside temperature.
•
Weather-compensated with the influence of the room
temperature
: Automated control of the flow temperature
based on the outside temperature and room temperature.
Installation of a user interface in the reference room is
required.
•
Constant:
Automated control of the flow temperature for
the heating of swimming pool or ventilation unit with
constant temperature. This control type is independent of
the room or outside temperature.
For further information on the control types
(
Æ
Control types, page 34).
2.1.2 Application options in different heating systems
In a BUS system, only one node can carry out the calculations
for a heating circuit. Consequently, only one C 400 or one
C 800 user interface may be installed in each heating system.
The user interface serves as controller in:
•
Systems with one heating circuit, e.g. in a single-family
home
•
Systems with two or more heating circuits, e.g.:
–
underfloor heating system on one floor, panel radiators
on the other
–
Apartment in combination with a workshop
(
Æ
Fig. 1, [1])
•
Systems with several heating circuits with remote controls,
e.g.:
–
House with annexe with CW 400/CW 800 as controller
and CR 100 as remote control (installation of CR 400
in the reference room of the house, CR 100 in the
reference room of the annexe,
Æ
Fig. 1, [2])
–
House with several apartments (CW 400/CW 800 as
controller and CR 100 as remote control, installation of
CW 400/CW 800 in the heat source).
There are heat sources that have integrated
weather-compensated control. In such heat
sources, the integrated weather-compensated
control must be deactivated.
Summary of Contents for CR 400
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