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Third-party devices
with Konnex interface
Presence button
Timer function
⇒
Interventions
via digital inputs
Holiday contact
10
Special day
9
contact
Timer button
(pushbutton at
8
digital Input)
Room
4
operating
contact
Building Technologies
HVAC Products
User interventions can also take place via a third-party device with Konnex interface.
In
mode, the presence button is used to switch over the room operating mode
until the time switch reaches the next switching point. Changeover takes place between
Comfort or Precomfort and Economy mode.
The timer function is identical with triggering via a conventional button. This means that
the setting used for the duration is also the same.
10.5.5 Control priorities in the heating circuit
The following illustration shows the priorities of the different interventions via digital
inputs or via Konnex bus, as well as operation on the controller or on the QAW740
room unit .
Lower numbers indicate higher priorities.
On, Off
On, Off
Calendar
Switching program
Resulting operating mode
Time program Cmf, Pcf, Eco, Prt
On, Off
On, Off
User
requisition
Resulting operating mode
Cmf, Pcf, Eco, Prt
Heating circuit
control (part plant)
Pump, mixing valve
Resulting control command
pump, mixing valve
Priority Name
Wiring test
Plant operation selector
Boiler Sequence Controller RMK770
10 Heating circuit control
Cmf, Pcf, Eco, Prt
Special day, holidays
Auto, Cmf,
Pcf, Eco, Prt
Cmf, Pcf, Eco, Prt
On, Off
Explanation
In the wiring test (highest priority), the plant
components can be directly controlled, inde-
pendent of all other settings
The plant operating mode selector has the sec-
ond highest priority and can only be overridden
by the controller's frost protection
Operating on the controller,
or room unit, or via bus
Settings 24-hour program,
12
holiday/special day program
Settings calendar
11
On, Off
Timer button
7
Presence button
6
Room operating mode selector
5
on RMH760 controller
Timer button or mode button
on QAW740 room unit
From user requisition room
3
(RMU7... controller)
Off, Auto
Plant operating mode selector
2
On, Off
Wiring test
1
The controller-internal safety functions
will be overridden!
157/226
CE1P3132en
01.03.2005
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