11
A
ENGLISH
While heating, ice may accumulate. During the process of
defrosting, check if condensation draining is adequate. For
adequate draining, do the following:
1.
Insert the drain plug into the drain hole on the
underside of the outdoor unit.
2.
Connect the drain hose to the drain plug.
3.
Ensure that condensation draining is adequate.
$RAINHOLE
Drain hole
Installing and connecting the drain hose of the outdoor unit
Cutting/extending the piping
1. Make sure that you have the required tools available (pipe cutter, reamer,flaring tool and pipe holder).
2. If you wish to shorten the piping, cut it using a pipe cutter, taking care toensure that the cut edge remains at a 90° angle with the side of
the pipe,and referring to the illustrations below for examples of edges cut correctlyand incorrectly.
3. To prevent any gas from leaking out, remove all burrs at the cut end of thepipe, using a reamer.
4. Slide a flare nut on to the pipe and modify the flare.
5. Check that the flaring is correct, referring to the illustrations below for examples of incorrect flaring.
6. Align the pipes to be connected and tighten the flare nuts first manually andthen with a torque wrench, applying the following torque.
7. For further details on how to connect up to the outdoor unit and purge the circuit, refer to page 20.
Oblique
Rough
Burr
Outer Diameter (D)
Thickness
Depth (A)
ø6.35 mm(1/4")
0.8 mm(0.03 inch)
1.3 mm(0.05 inch)
ø9.52 mm(3/8")
0.8 mm(0.03 inch)
1.8 mm(0.07 inch)
ø12.70 mm(1/2")
0.8 mm(0.03 inch)
2.0 mm(0.08 inch)
ø15.88 mm(5/8")
0.8 mm(0.03 inch)
2.2 mm(0.09 inch)
Uneven
Thickness
Cracked
Damaged
Surface
Inclined
Correct
䭭
In case welding the pipe, the gas nitrogen must be blown into the parts.
Outer Diameter (D)
Thickness
Torque
N·m
ft·lb(kgf·cm)
ø6.35 mm(1/4")
0.8 mm(0.03 ")
14~18
10.1~13.0(140~180)
ø9.52 mm(3/8")
0.8 mm(0.03 ")
34~42
25.3~31.1(350~430)
ø12.70 mm(1/2")
0.8 mm(0.03 ")
49~61
36.2~44.8(500~620)
ø15.88 mm(5/8")
0.8 mm(0.03 ")
68~82
49.9~60.0(690~830)