Atlantic 024122 - Filling and Bleeding the Installation

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Key:
1. "Liquid" refrigeration connection.
2. "Gas" refrigeration connection.
3. Heating return (1 circuit).
4. Heating ow (1 circuit).
5. Stop valve (not provided).
6. DHW outlet (domestic hot water).
7. DCW inlet (domestic cold water).
8. Shut-o󰀨 (not provided).
9. Filling.
10. Safety valve (mandatory / not supplied).
11. Connections to sewer with siphon
(safety valve).
gure 28 - Connections
4.3 Filling and bleeding the installation
Check the pipe xings, tightness of the connectors and
the stability of the hydraulic unit.
Check the direction in which the water is circulating and
that all the valves are open.
Proceed to ll the installation.
Do not operate the circulation pump during lling. Open
all the drain valves in the installation and the bleeder
valve on the hydraulic unit (P) to expel the air contained
in the pipes.
Close the drain valves and add water until the pressure
in the hydraulic circuit reaches 1 bar.
Check that the hydraulic circuit has been bled correctly.
Check there are no leaks.
After the "Commissioning", page 42 stage, and once the
machine has started, bleed the hydraulic unit again
(2 litres of water).
" Precise lling pressure is determined by the
water pressure in the installation.
gure 29 - Hydraulic unit automatic bleeder valve
P
Installation and Operating Manual "1821- EN" - 33 -
Alféa Extensa Duo A.I. Heat Pump