ECR International 18k Installation, Operation & Maintenance Manual - page 8
Seal
Drain joint
Base pan hole of
outdoor unit
Seal
Drain pipe
Oblique
。
90
Roughness
Burr
1. Use the piping kit accessory or pipes
purchased locally.
2. Measure the distance between the indoor
and the outdoor unit.
3. Cut the pipes a little longer than the
measured distance.
4. Cut the cable
4.9ft
[
1.5m
]
longer than the pipe
length.
Fig.
6
B: Burr removal
1. Completely remove all burrs from the cut
cross section of pipe/tube.
2. Put the end of the copper tube/pipe in a
downward direction as you remove burrs in
order to avoid dropping burrs into the tubing.
Pipe
Reamer
Point down
Fig.
7
Fig.
8
C: Putting nut on
Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube
having completed burr removal.(not possible
to put them on after flaring work)
Flare nut
Copper tube
Fig.
9
8
REFRIGERANT PIPE CONNECTION
(1)
(2)
Drain joint installation
NOTE: The drain joint
may
differ from appliance
to appliance.
Fit the seal into the drain joint, then insert the
drain joint into the base pan hole of outdoor unit,
rotate 90
°
to secure assembl
y
. Connecting the
drain joint with an extension drain hose (Locally
purchased), in case water drain
s
off the outdoor
unit during the heating mode.
Refrigerant pipe connection
1. Flaring work
Main cause for refrigerant leakage
is due to defect in the flaring work.
Carry out correct flaring work
using the following procedure:
A: Cut the pipes and the cable.
Bar
Copper pipe
Clamp handle
Cone
Yoke
Handle
Bar
"A"
Red arrow mark
Fig.
1
0
D: Flaring work
Firmly hold copper pipe in a die in the
dimension shown in the table below.
Outer diam.
in
[
mm
]
A
in
[
mm
]
Max.
Min.
[
6.35
]
[
1.3
]
[
0.7
]
[
9.52
]
[
1.6
]
[
1.0
]
[12.7]
[1.8]
[
1.0
1.0
]
1/4"
3/8"
1/2"
.05
.06
.07
.03
.04
.04