Use four ground bolts, M12, to secure the unit in
place. Best is to screw in the ground bolt until it is
embedded in the base surface by at least 3 threads.
At least 3 threads
The base of the outdoor unit must use the
solid concrete surface as the cement base or
the steel beam frame base.
The base must be completely level to ensure
that every point of contact is even.
During installation, make sure the base
supports the vertical folds of the front and
back under plates of the chassis directly as
the vertical folds of the front and back under
plates are unit where the actual support for
the unit load is.
No gravel layer is required when the base is
built on the roof surface, but the sand and
cement on the concrete surface must be
level, and the base should be chamfered
along the edge. A water drainage ditch
should be set around the base to drain the
water around the equipment. Potential risk:
slip.
Check the load-bearing capacity of the roof to
make sure it can support the load.
When you choose to install the piping from
the bottom, the base height should be above
200 mm.
NOTE
Make sure the refrigerant piping is installed in
accordance with the applicable law.
Make sure the piping and connections are
not placed under pressure.
Before brazing, the refrigerant piping
should be flushed with nitrogen to remove
dust, moisture and other particles.
After all the piping connections have been
completed, check to make sure there is no
gas leak. Use nitrogen to conduct the leak
check for gas.
NOTE
HP
8,10,12
14,16,18
SIZE
A
B
C
D
740
990
723
790
1090
1340
723
790
Table 5-1 Unit: mm
5.4 Pipe Welding
5.4.1 Things to note when connecting the
refrigerant piping
5.4.2 Connect refrigerant piping
During the test, do not exert a force greater
than the maximum allowed pressure on the
product (as shown on the nameplate).
Take appropriate precautions to prevent
refrigerant leakage. Ventilate the area
immediately if the refrigerant leaks. Possible
risk (An excessively high concentration of
refrigerant in an enclosed area can lead to
#\# \& $& $#
gas may produce a toxic gas if it comes in
contact with fire.)
Refrigerant must be recovered. Do not
release it to the environment. Use
professional fluorine extraction equipment to
extract the refrigerant from the unit.
CAUTION
Connect refrigerant piping to outdoor unit.
Connect refrigerant piping to MS box (refer to the
installation manual of MS box).
Connect refrigerant piping to indoor unit (refer to the
installation manual of the indoor unit).
Connecting VRF piping assembly.
Assembly for connecting refrigerant piping branch
joint.
Braze.
Stop valve is used correctly.
Before the refrigerant piping is connected, make sure
the indoor units, MS boxes and outdoor units are
installed properly. Connecting refrigerant piping
include:
Bear in mind the following guidelines:
19
