82
User manual
Hydrobox module AQMS80X1i
EN
PART 2. INSTALLATION MANUAL
6. Place flaring tool onto the form.
7. Turn the handle of the flaring tool clockwise until the pipe is fully flared.
Flare the pipe in accordance with the dimensions.
8. Remove the flaring tool and flare form, then inspect the end of the pipe for cracks and even flaring.
Pipe
gauge
Tightening torque
Flare dimension (A)
(Unit: mm/Inch)
Flare shape
Min.
Max .
Ø 6.35
18-20 N.m (183-204 kgf.cm)
8.4/0.33
8.7/0.34
Ø 9.52
25-26 N.m (255-265 kgf.cm)
13.2/0.52
13.5/0.53
Ø 12.7
35-36 N.m (357-367 kgf.cm)
16.2/0.64
16.5/0.65
Ø 16
45-47 N.m (459-480 kgf.cm)
19.2/0.76
19.7/0.78
Ø 19
65-67 N.m (663-683 kgf.cm)
23.2/0.91
23.7/0.93
Ø 22
75-85N.m (765-867 kgf.cm)
26.4/1.04
26.9/1.06
Piping extension beyond flare form
Step 4: Connect pipes
Connect the copper pipes to the indoor unit first, then connect it to the outdoor unit. You should first connect
the low-pressure pipe, then the high- pressure pipe.
1. When connecting the flare nuts, apply a thin coat of refrigeration oil to the flared ends of the pipes.
2. Align the center of the two pipes that you will connect.
3. Tighten the flare nut as tightly as possible by hand.
4. Using a spanner, grip the nut on the unit tubing.
5. While firmly gripping the nut, use a torque wrench to tighten the flare nut according to the torque values
in above table.
NOTE:
Use both a spanner and a torque wrench when connecting or disconnecting pipes to/from the unit.
Indoor unit tubing
Flare nut
Pipe
