MCAC-VTSM-2016-04
R410A DC Inverter VRF V4 Plus W Series 50Hz
Installation 173
2.4 Hoisting main unit
It is banned to take wooden cork base as the force bearing point of lifting up the unit during hoisting, the
correct method is
use the braces or lifting ropes which can bear the unit’s weight and go through the lifting
holes of the front and back bottom plates in the unit for hoisting.
It is banned to tear down any packages during hoisting installation; it should use two longer than 4m ropes
to lift up the unit with the packages, and keep the unit in balance, lift it up stably. Under transporting the
unit with no packages or the package has been damaged, it should use base plate or packaging materials
for protection.
Pay attention to keep the main unit vertical during transportation, hoisting, and make sure the safety
during transportation and hoisting.
2.5 Base for main unit
A solid, correct base can:
Avoid the main unit from sinking.
Avoid the abnormal noise generated due to base.
Base types
Steel structure base
Concrete base (see the figure below for the general making method)
CAUTION:
The key points to make basement:
•
The master unit’s basement must be made on the solid concrete ground . Refer to the structure diagram to make concrete
basement in detail, or make after field measurements.
•
In order to ensure every point can contact equality, the basement should be on completely level.
•
If the basement is placed on the roofing, the detritus layer isn’t needed, but the concrete surface must be flat. The standard
concrete mixture ratio is cement 1/ sand 2/ carpolite 4, and add Φ10 strengthen reinforcing steel bar, the surface of the cement
and sand plasm must be flat, border of the basement must be chamfer angle.
•
Before construct the unit base, please ensure the base is directly supporting the rear and front folding edges of the bottom panel
vertically, for the reason of these edges are the actual supported sites to the unit.
•
In order to drain off the sweeper around the equipment, a discharge ditch must be setup around the basement.
•
Please check the afford ability of the roofing to ensure the load capacity.