![AFRISO PrimoBox AZB Operation And Installation Manual Download Page 7](http://html.mh-extra.com/html/afriso/primobox-azb/primobox-azb_operation-and-installation-manual_2864806007.webp)
Instruction manual
PrimoBox AZB mixing units with low-loss header 200 and 300 series in cabinets
7
3.2
Dimensions
Fig. 2: Dimensions of the AZB mixing unit
In the two-zone version equipped with two ATM thermostatic mixing
valves (Art. No. 76 211 00), middle and right connections are used
to facilitate operation of the thermostatic valve knobs.
3.3
Operation
The mixing unit PrimoBox AZB with low-loss header is designed
to divide the heating medium flow from the boiler circuit into two
or three heating circuits. The manifold used with a built-in low-loss
header eliminates the need to balance the primary circuit of the boiler
with other circuits. This ensures smoothness and high efficiency
of the installation operation regardless of the current hydraulic
conditions and the current demand for heating power.
Using the PrimoBox AZB mixing unit with low-loss header allows
reducing the use of number of fittings and pipes necessary to perform
individual installation circuits, and helps to organize and simplifie
the entire installation.