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4 | Product Description
– Isolate all poles and secure against
unintentional reconnection.
– Ensure the system has been
disconnected from the power
supply.
▶ Never connect the product to line
voltage.
▶ Also observe the connection
diagrams for other system
components.
Handing over to the operator
Installing contractor - Please train the
end user in proper use of this product.
▶ Explain operation – especially all
safety-related actions.
▶ Point out that conversion or repair
may be carried out only by a licensed
contractor.
▶ Provide a copy of these installation
and operating instructions to the end
user for future reference.
Risk of damage from frost
The system can freeze if it is switched
off:
▶ Observe the instructions for frost
protection.
▶ Always leave the system switched on
for additional functions, e. g. water
heating or anti-seize protection.
▶ Immediately correct any faults that
occur.
6 720 821 651 (2017/05)
2
Product Description
Functions that are relevant only in conjunction
with the outdoor temperature are identified by
a corresponding symbol (
2.1
Product Information
•
The user interface is used to control a heating zone and a
DHW tank charging circuit for water heating directly at the
heat source.
•
The user interface incorporates a time program:
– Preset for the heating zone, but freely adjustable with 6
switching times per day
– Water heating may be controlled with or without time
program.
•
The user interface displays information about the heat
source and heating system and is used to change the
settings.
•
Installation options: On the wall with a BUS connection to a
heat source or CZM100 module with an EMS-BUS Interface
(Energy Management System).
•
After operating for 1½ hours, the user interface has a
power reserve of at least four 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 structure of the
system. Your attention is drawn to the importance of the
system structure at the relevant places in these
instructions. The control ranges and factory settings may
differ from the information in these instructions.
2.1.1 Control types
There are boilers that have integrated outdoor
reset controls. In such boilers, the outdoor
reset control must be deactivated.
The following control options are available:
Outdoor reset operation (
•
simple outdoor reset control
•
optimized outdoor reset control.
This operation requires additional optional outdoor sensor
accessory
Room temperature-dependent operations:
•
supply temperature control
•
power output control
The supply temperature is adjusted using the heating curve in
outdoor reset controls (
).
):
) (with or without room
CRC200
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