AFRISO PrimoBox ACB 910 Bedienings- en installatiehandleiding - Pagina 7
Blader online of download pdf Bedienings- en installatiehandleiding voor {categorie_naam} AFRISO PrimoBox ACB 910. AFRISO PrimoBox ACB 910 20 pagina's. Mixing unit for condensing boilers
Pagina afdrukken3.2 Operation
PrimoBox ACB 910 mixing unit for condensing boilers
PrimoBox ACB is a hydraulic unit for two heating zones with different
supply temperatures, where one of the circuits is direct and on
the other the temperature is lowered via the mixing valve.
This is a solution dedicated only for condensing boilers.
The PrimoBox ACB mixing unit performs the following functions:
• Esures a lower return temperature, which helps condensation
in the gas boiler, increasing its efficiency
• Direct heating zone connection
• Connection for a zone with reduced temperature obtained
by mixing
The PrimoBox ACB unit does not use a standard 3-way mixing valve,
but a special 4-way valve with 6 ports and a disproportionate valve
sleeve. The purpose of this special 4-way valve is to use the medium
returning from the direct zone (without mixing) to supply the zone with
reduced temperature.
Shut-off valves with thermometers
The ACB mixing units are supplied with shut-off valves to facilitate
product maintenance. Check valves have been built into the shut-off
valves and slot for temperature sensors has been prepared. The valve
knobs contain thermometers to control the temperature of the heating
medium. By turning the knob 45°, the non-return valve is forced to
open for easy maintenance and system filling.
Grundfos UPM3 AUTO 15-70 circulation pumps
For the operation of the Grundfos UPM3 AUTO circulation pump
included in the PrimoBox units, please refer to the attached operating
instruction (also available on the pump manufacturer's website).
Instruction manual
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