7. INSTALL THE CONNECTING PIPE
CAUTION
All field piping must be provided by a licensed
refrigeration technician and must comply with the
relevant local and national codes.
Do not let air, dust, or other impurities fall in the pipe
system during the time of installation.
The connecting pipe should not be installed until the
indoor and outdoor units have been fixed already.
Keep the connecting pipe dry, and do not let moisture in
during installation.
Execute heat insulation work completely on both sides
of the gas piping and the liquid piping. Otherwise, this
can sometimes result in water leakage.
The Procedure of Connecting Pipes
7.1
Drill a hole in the wall (suitable just for the size of the wall
conduit), then set on the fittings such as the wall conduit and
its cover.
Bind the connecting pipe and the cables together tightly with
binding tapes.
Pass the bound connecting pipe through the wall conduct
from outside. Be careful of the pipe allocation to do on
damage to the tubing.
Connect the pipes. Refer to "How to Connect the pipes" for
details.
Expel the air with a vacuum pump. Refer to "How to expel the
air with a vacuum pump" for details.
Open the stop values of the outdoor unit to make the
refrigerant pipe connecting the indoor unit with the outdoor
unit in fluent flow.
Check the leakage. Check all the joints with the leak detector
or soap water.
6. CONNECT THE DRAIN PIPE
1.5m~2m
Insulating
material
Downward declivity
lower than 1/100
Bend
S shape
VP30
Downward declivity
lower than 1/100
Put as deep as possible
(about 10cm)
Fig. 6-1
NOTE
All the pictures in this manual are for explanation purpose only.
They may be slightly different from the air conditioner you
purchased(depend on model).The actual shape shall prevail.
The outlet has PTI screw bread, Please use sealing
materials and pipe sheath(fitting) when connecting PVC
The drain pipe of indoor unit must be heat insulated, or it
will condense dew, as well as the connections of the
indoor unit.
Hard PVC binder must be used for pipe connection, and
make sure there is no leakage.
With the connection part to the indoor unit, please be
noted not to impose pressure on the side of indoor unit
pipes.
When the declivity of the drain pipe downwards is over
1/100, there should not be any winding.
The total length of the drain pipe when pulled out
traversely shall not exceed 20m, when the pipe is over
long, a prop stand must be installed to prevent winding.
Refer to the figures on the right for the installation of the
pipes.
The distance between the end of the drain pipe and the
floor or the bottom of the waterspout must be more than
50mm
ˈ
and do not put it in the water. when the condense
dew directly discharge to the slot
ˈ
the drain pipe must be
bend to make a U-shanped block to interdict the stench.
6.1 Install indoor unit drain pipe
Make sure all the connecting point of the drainage system
is sealed to prevent leakage.
CAUTION
6.2 Drainage test
Check whether the drainpipe is unhindered
New built house should have drain test done before
paving the ceiling.
Stow water of about 500ml to the water receiver
through the stow tube.
Turn on the power, set the air conditioner under
the mode of “COOLING”. Check whether the
drainpipe is unhindered(According to the length of
the drainpipe, it drained after one minute.), and
whether there’s a leakage exisit in all the connect-
ing point
9.1 Main board Code designation
Installation manual
Cassette 4 way compact
6
