Installation Part; Indoor Unit Installation; Leak Test - Samsung Duct Type Series User Manual

Installation Part

Indoor Unit Installation

It is recommended to install the Y-joint before installing the
indoor unit.
Place the pattern sheet on the ceiling at the spot where you
1.
want to install the indoor unit.
Note
Since the diagram is made of paper, it may shrink
or stretch slightly due to temperature or humidity.
For this reason, before drilling the holes maintain
the correct dimensions between the markings.
Insert bolt anchors, use existing ceiling supports or
2.
construct a suitable support as shown in figure.
Hole in anchor
Hole in plug
Suspension bolt(3/8" or M10)
3. Install the suspension bolts depending on the ceiling type.
 Ensure that the ceiling is strong enough to
support the weight of the indoor unit.
Before hanging the unit, test the strength
of each attached suspension bolt.
 If the length of suspension bolt is more than
1.5m, it is required to prevent vibration.
 If this is not possible, create an opening on
the false ceiling in order to be able to use it
to perform the required operations on the
indoor unit.
Screw eight nuts to the suspension bolts making space for
4.
hanging the indoor unit.
You must install the suspension bolts more than
four when installing the indoor unit.
Rubber
16_ installing your air conditioner
Big Duct type_IB_E_33763-1.indd 15
Concrete
Insert
Ceiling support
Hang the indoor unit to the suspension bolts between two nuts.
5.
Note
Piping must be laid and connected inside the
ceiling when suspending the unit. If the ceiling is
already constructed, lay the piping into
position for connection to the unit before
placing the unit inside the ceiling.
Screw the nuts to suspend the unit.
6.
Adjust level of the unit by using measurement plate for all 4 sides.
7.
Note
For proper drainage of condensate, give a 1° slant
to the left or right side of the unit which will be
connected with the drain hose, as shown in the
figure. Make a tilt when you wish to install the drain
pump, too.
1°
Performing Leak Test & Insulation

Leak test

LEAK TEST WITH NITROGEN(before opening valves)
In order to detect basic refrigerant leaks, before recreating the
vacuum and recirculating the R410A, it's responsible of installer
to pressurize the whole system with nitrogen(using a pressure
regulator) at a pressure above 4.1MPa(gauge).
LEAK TEST WITH R410A(after opening valves)
Before opening valves, discharge all the nitrogen into the
system and create vacuum. After opening valves check leaks
using a leak detector for refrigerant R410A.
Leak check
Discharge all the nitrogen to create a vacuum and
charge the system.
Insulation
Once you have checked that there are no leaks in the system,
you can insulate the piping and hose.
To avoid condensation problems, place T13.0 or thicker
1.
Acrylonitrile Butadien Rubber separately around each
refrigerant pipe.
Note
Always make the seam of pipes face upwards.
No gap
NBR(T13.0 or thicker)
Drain hose port
2011-06-09 오후 12:32:33