Instruction manual
8
PrimoBox AZB mixing units with low-loss header 200 and 300 series in cabinets
Shut-off valves with thermometers
AZB mixing units are supplied with built-in shut-off valves to facilitate
product maintenance. Check valves have been built into the shut-off
valves. Space for temperature sensors has also been prepared.
The valve knobs contain thermometers to control the temperature
of
the heating medium. By turning the knob by 45°, the non-return valve
is forced to open to enable system maintenance and system filling.
Grundfos UPM3 AUTO 15-70 circulation pumps
For the operation of the Grundfos UPM3 AUTO circulation pumps
included in the PrimoBox units, please refer to the attached operating
instructions (also available on the manufacturer's website).
Connections for AZB mixing units
heat source
zone 1
zone 2
zone 3
Fig. 3: Connections
of PrimoBox AZB 351
mixing unit
