Riello AARIA MULTI 250 P, Инструкции по установке и техническому обслуживанию

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INSTALLATION
9
Avoid the entry of uncondensable gases (air) in the circuit,
otherwise, with the unit in operation, high pressures with
the risk of damages might ensue.
9
Use copper pipes for cooling systems.
9
Use connecting pipes and tools appropriate for the system's
refrigerant.
0
It is forbidden to use second-hand cooling lines since their
flare connection seal is not guaranteed.
0
It is forbidden to use pre-charged cooling lines.
0
It is forbidden to carry out welding operations with refrig-
erant inside the cooling circuit. If necessary, the refrigerant
must be recovered and the circuit must be cleaned with ni-
trogen without oxygen.
Connections
—
position the connecting pipes
OK
OK
OK
9
Plug the pipe ends in order to prevent water or debris from
flowing in.
9
before threading the lines through the hole in the wall,
close the lines ends.
— cut the pipe end square using a pipe cutter
— remove burrs keeping the cut edge facing down
— remove the flare nut on the unit connection
— insert it into the connection pipe
— flare the tube
A
Pipe Ø A
mm inches mm
6,35 1/4 9,1
9,52 3/8 13,2
12,70 1/2 16,6
15,88 5/8 19,7
1 Key
2 Torque wrench
3 Flare nut
2
3
1
Pipe Ø Tightening torque
mm inches Nm
6,35 1/4 18
9,52 3/8 42
12,70 1/2 55
15,88 5/8 60
A
Pipe Ø A
mm inches mm
6,35 1/4 17
9,52 3/8 22
12,70 1/2 26
15,88 5/8 29