Refrigerant Pipe Connection - Carrier ROOM AIR CONDITIONER Installation Manual

Drain joint installation
NOTE: The drain joint 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 securely assemble them.
Connecting the drain joint with an extension drain
hose (Locally purchased), in case of the water
draining 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.
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 1.5m longer than the pipe
length.
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.
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)
D: Flaring work
Firmly hold copper pipe in a die in the
dimension shown in the table below.
Outer diam.
(mm)
6.35
9.52
12.7 12.7
A(mm)
Max.
Min.
1.3 0.7
1.6 1.0
1.8 1.8
1.0 1.0
REFRIGERANT PIPE CONNECTION
Drain joint
Seal
(1)
。
90
Point down
Copper tube
Bar
Copper pipe
Clamp handle
29
Base pan hole of
outdoor unit
(2)
Fig.53
Oblique Roughness
Fig.54
Pipe
Reamer
Fig.55
Flare nut
Fig.56
Handle
Bar
Yoke
Cone
Red arrow mark
Fig.57
Seal
Drain pipe
Burr