Samsung AM007FNTDCH, Installation Manual

Page: 11 / 33

11
A
Performing leak test & insulation
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.
Discharge all the nitrogen to create a vacuum and
charge the system.
C D
After checking for gas leaks in the system, insulate the pipe,
hose and cables. Then place the indoor unit on the installation
plate.
1
To avoid condensation problems, place heat-resistant poly-
ethylene foam separately around each refrigerant pipe in the
lower part of the indoor unit.
2 Wrap the refrigerant pipe and the drain hose in the rear of the
indoor unit with the absorbent pad.
±
Wind the pipe and hose three times to the end of the
indoor unit with the absorbent pad. (20mm interval)
3 Wind the pipe, assembly cable and drain hose with insulation
tape.
4 Place the bundle (the pipe, assembly cable and drain hose) in
the lower part of the indoor unit carefully so it doesn’t project
from the rear of the indoor unit.
5 Hook the indoor unit to the installation plate and move the unit
to the right and left until it is securely in place.
6 Wrap the rest of the pipe with vinyl tape.
7 Attach the pipe to the wall using clamps (optional).
Installation plate
CAUTION