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After the pipe is protected
, do not
bend it to form a small angle; otherwise it
will
crack or
break.
(3)Wrap the Pipe with Tape
˖
a. Bundle the refrigerant pipe and electric wire together with tape, and separate them from the drain pipe to
prevent the condensate water
from
overflowing.
b. Wrap the pipe from the bottom of the outdoor unit to the top of the pipe where it enters the wall. During the
wrapping, the later circle should cover half of the former one.
c. Fix the wrapped pipe on the wall with clamps.
1) Do not wrap the pipe too tight; otherwise the insulation effect would be weakened.
Ensure
drain hose is separated from the pipe.
2)
Next
, fill the hole on the wall with sealing material to prevent wind and rain
from entering
the room.
4.2.
5
Support and protection for
the
pipeline
Support should be made for hanging
the
connection pipe.
The distance
between each support can not
exceed 3.3 ft (1m)
.
4.3 Air Purging and Refrigerant Charge
4.3.1 Air purging
(1) The refrigerant
in the outdoor unit was charged
before shipment
. A
dditional refrigerant need
s
to
be charged into the refrigerant pipe during the field installation.
(2)
Ensure the outdoor unit's liquid and gas valves are closed completely.
(3) As shown in the following figure (Fig.10), expel the gas in
side
the indoor unit and
the
refrigerant p
ipe
with
the
vacuum pump.
"LO"Knob
"HI"Knob
Vacuum pump
Manometer
Manometer
Connection hose
liquid valve
Gas valve
Fig 10
(4) When the compressor is not running, charge the R410A refrigerant into the refrigerant pipe from the liquid
valve of the outdoor unit (do not
charge
from the gas valve).
4.3.2 Additional refrigerant charging
(1) Refrigerant Charge in the Outdoor Unit before Shipment
NOTICE
1)
The outdoor
unit has been charged
with
refrigerant
prior to
delivery. The refrigerant charge is not included
and is
an additional charge for
the indoor unit and the refrigerant pipe.
2) The amount of the additional refrigerant charge
depends
on the diameter and length of the liquid refrigerant
pipe which is
determined
by the actual yield installation requirement.
3) Record the additional refrigerant charge for future maintenance.
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