Installation Part; Indoor Unit Installation; Performing Leak Test & Insulation - Samsung ND0454HXEA User Manual

Installation Part

Indoor Unit Installation

When deciding on the location of the air conditioner with the
owner, the following restrictions must be taken into account.
1.
Determine the position of the pipe and drain hose hole as
seen in the picture and drill the hole with an inner diameter
of 65mm so that it slants slightly downwards.
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.
2.
Insert bolt anchors, use existing ceiling supports or
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.
CAUTION
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.
4.
Screw eight nuts to the suspension bolts making space for
hanging the indoor unit.
 You must install all the suspension rods.
 It is important to leave sufficient space in the
CAUTION
false ceiling to allow access for maintenance
or repairs to the drainage pipe connection, the
refrigerant pipe connection, or to remove the unit
if necessary.
18_ installing your air conditioner
Cassette type_IBIM_E_33473-4.indd 18
Concrete
Insert
Ceiling support
5.
Hang the indoor unit to the suspension bolts between two
nuts.
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.
Pad stopper
Bracket
6.
Screw the nuts to suspend the unit. Cut a pad stopper and
place it on the bracket at this time.
7. Adjust the unit to the appropriate position considering the
installation area for the front panel.
1) Place the pattern sheet on the indoor unit.
2) Adjust a space between the ceiling and the indoor unit
by using the gauge of dimensions.
3) Fix the indoor unit securely after adjusting level of the
unit by using a leveler.
4) Remove the pattern sheet, connect the other cables and
install the front panel.
Gauge of Dimensions
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.
Liquid refrigerant
port
g The designs and shape are subject
to change according to the model.
Gas refrigerant port
Discharge all the nitrogen to create a vacuum and
charge the system.
20mm
Indoor unit
Ceiling
17mm
2012-01-13 오후 11:08:18