Drain Piping; Refrigerant Piping Work; Flaring The Pipe End - Daikin CTXG09QVJUW Manual De Instalación

Indoor Unit Installation
5.

Drain piping

1) Connect the drain hose, as described on the right.
2) Remove the upper front panel and the air filters. (Refer to removal method on page 11.)
Pour some water into the drain pan to check the water flows smoothly.
3) If drain hose extension or embedded drain piping is required, use appropriate parts
that match the hose front end.
Figure of hose front end
• When drain hose requires extension, obtain an extension
hose with an inner diameter of 5/8 inch (16mm).
Be sure to thermally insulate the indoor section of the
extension hose.
• When connecting a rigid polyvinyl chloride pipe
(nominal diameter 1/2 inch (13mm)) directly to
the drain hose attached to the indoor unit as with
embedded piping work, use any commercially
available drain socket (nominal diameter 1/2 inch
(13mm)) as a joint.

Refrigerant Piping Work

WARNING
• Do not apply mineral oil on flared part.
• Prevent mineral oil from getting into the system as this would reduce the service life of the units.
• Never use piping which has been used for previous installations. Only use parts which are delivered with the unit.
• Never install a dryer to this R410A unit in order to guarantee its service life.
• The drying material may dissolve and damage the system.
• Incomplete flaring may result in refrigerant gas leakage.
With a multi indoor unit
1.

Flaring the pipe end

1) Cut the pipe end with a pipe cutter.
2) Remove burrs with the cut surface facing downward
so that the filings do not enter the pipe.
3) Put the flare nut on the pipe.
4) Flare the pipe.
5) Check that the flaring has been done correctly.
9
, install as described in the installation manual supplied with the multi outdoor unit.
Drain hose supplied
with the indoor unit
Drain hose supplied with Commercially available
the indoor unit drain socket
(nominal diameter 1/2 inch
(13mm))
Cut exactly at
right angles.
Set exactly at the position shown below.
Flare tool for
A
R410A
Clutch-type
0-0.020 inch
Die
A
(0-0.5mm)
The flare's inner
surface must be
flaw-free.
The drain hose should
be inclined downward.
No trap is permitted.
Do not put the end
of the hose in water.
Extension drain hose
Indoor unit
drain hose
Heat insulation tube (field supply)
Commercially available
rigid polyvinyl chloride pipe
(nominal diameter 1/2 inch
(13mm))
Remove burrs.
Flaring
Conventional flare tool
Clutch-type Wing-nut type
(Rigid-type) (Imperial-type)
0.039-0.059 inch 0.059-0.079 inch
(1.0-1.5mm) (1.5-2.0mm)
Check
The pipe end must
be evenly flared in a
perfect circle.
Make sure that the
flare nut is fitted.
English
■