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1 - DESCRIPTION
1.1 - Boilers of type 0.9-9 / 2-13 / 2-17 /
5-25 / 10-35 / 10-50
The REG 73-1 is a digital multifunction room
sensor for one heating circuit and for controlling
the domestic hot water.
The boiler settings supply the QAA73 room sen-
sor with the outside temperature and other in-
formation via the OpenTherm communication
bus. Using the outside temperature, room tem-
perature and other preset boiler parameters,
the room device computes the start setting re-
quired for one heating circuit and transmits it to
the boiler control. The hot water setting is also
sent to the boiler controls.
The QAA73 room sensor is a communication in-
terface that enables the main programmed pa-
2 - COMPONENTS
No.
Description
QAA 73.210/101 room
1
sensor
2
Cleat + screw
-
Installation instructions
All manuals and user guides at all-guides.com
I - PRESENTATION
Quantity
1
1
1
rameters to be changed in the boiler LMU
management unit (e.g. heating curve, modula-
tion range, hydraulic system, etc.). Access to
these settings is protected by a code and reser-
ved only for a qualified professional
The optimisation functions provide energy sa-
vings without compromising ease of use.
1.2 - Boilers of type 10-100
The QAA73 room sensor is a communication in-
terface that enables the main programmed pa-
rameters to be changed in the boiler LMU
management unit (e.g. heating curve, modula-
tion range, hydraulic system, etc.). Access to
these settings is protected by a code and reser-
ved only for a qualified professional
Fig. 1
1
2
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