EAS Electric ECMV2 Series Owners And Installation Manual page 78

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.
PIPING EXTENSION BEYOND FLARE FORM
Pipe Tightening
torque
gauge
18-20 N.m
Ø 6.35
(183-204 kgf.cm)
25-26 N.m
Ø 9.52
(255-265 kgf.cm)
35-36 N.m
Ø 12.7
(357-367 kgf.cm)
45-47 N.m
Ø 16
(459-480 kgf.cm)
65-67 N.m
Ø 19
(663-683 kgf.cm) 23.2/0.91
75-85N.m
Ø 22
(765-867 kgf.cm) 26.4/1.04
8. Remove the flaring tool and flare form,
then inspect the end of the pipe
for cracks and even flaring.
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.
Indoor unit tubing
Tighten the flare nut as tightly as
3.
possible by hand.
Using a spanner, grip the nut on
4.
the unit tubing.
Flare dimension Flare shape
(A) (Unit: mm/
Inch)
Min. Max.
8.4/0.33 8.7/0.34
90 ± ° 4
13.2/0.52 13.5/0.53
16.2/0.64 16.5/0.65
19.2/0.76 19.7/0.78
23.7/0.93
26.9/1.06
Flare nut
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 discon-
necting pipes to/from the unit.
A
R0.4~0.8
CAUTION
Ensure to wrap insulation around

the piping. Direct contact with the
bare piping may result in burns or
frostbite.
Make sure the pipe is properly

connected. Over tightening may
damage the bell mouth and under
tightening may lead to leakage.
NOTE ON MINIMUM BEND RADIUS
Carefully bend the tubing in the
middle according to the diagram
below . DO NOT bend the tubing more
than 90° or more than 3 times.
6. After connecting the copper pipes to
the indoor unit, wrap the power cable,
Pipe signal cable and the piping together with
binding tape.
NOTE: DO NOT intertwine signal
cable with other wires. While
bundling these items together, do
not intertwine or cross the signal
cable with any other wiring.
32
Bend the pipe with thumb
min-radius 10cm (3.9")
V.2