10
installation manual
Additional Refrigerant Charge
7.2
Refrigerant cannot be charged until field wiring has been
completed.
Refrigerant may only be charged after performing the leak
test and the vacuum pumping.
When charging a system, care shall be taken that its
maximum permissible charge is never exceeded, in view of
the danger of liquid hammer.
Charging with an unsuitable substance may cause
explosions and accidents, so always ensure that the
appropriate refrigerant is charged.
Refrigerant containers shall be opened slowly.
Always use protective gloves and protect your eyes when
charging refrigerant.
NOTE
CAUTION
If a negative result is gotten for R from Table 7-4, no
refrigerant needs to be added nor removed.
The outdoor unit is factory charged with refrigerant. Calculate
the added refrigerant according to the diameter and the
length of the liquid side pipe of the outdoor unit/indoor unit
connection.
Table 7-4
Ø
6.4
Ø
9.5
Ø
12.7
R(g): Additional refrigerant to be charged
L(m): The length of the refrigerant pipe(one-way)
D(mm) : Liquid Side Piping Diameter
30g/m×(L-5) 65g/m×(L-5) 115g/m×(L-5)
Added Refrigerant When
Over 5m (One-way)
Less than 5m (One-way)
R(g)
L(m)
D(mm)
CAUTION
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.
8. CONNECT THE DRAIN PIPE
Install the drainpipe of the indoor unit
The outlet has PTI screw bread, Please use sealing materials
and pipe sheath(fitting) when connecting PVC pipes.
Drainage test
Install the drain joint of the outdoor unit
Check whether the drainpipe is unhindered.
New built house should have this test done before
paving the ceiling.
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 Fig.8-1 for the installation of the pipes.
1.5m~2m
Insulating
material
Downward declivity
lower than 1/100
Bend
S shape
VP30
Downw ard declivity
lower t han 1/100
Put as deep as possible
(about 10cm)
Fig. 8-1
Seal
The base pan hole
of outdoor unit
Drain joint
Seal
The base pan
of outdoor unit
Drain
joint
Fig.8-2
Fit the seal into the drain joint, then insert the drain joint into
the base pan hole of outdoor, rotate 90
0
to securely
assemble them. Connect the drain joint with an extension
drain hose (Locally purchased), in case of the condensate
draining off the outdoor unit during the heating mode.
(Refer
to Fig.8-2)
All the pictures in this manual are for explanation purpose
only. They may be slightly different from the air conditioner
you purchased.The actual shape shall prevail.
NOTE
