Step 2-4 Connecting The Power And Communication Cables - Samsung AR TXHZ Series Installation Manual

Indoor Unit Installation
4 Slowly remove the protective caps on the refrigerant pipe
connections to relieve the nitrogen holding charge.
5 Connect the line set to each pipe.
Indoor outlet pipe
6 Hand-tighten the flare nuts to make sure that they do not
become stripped.
Liquid service port
<High pressure>
7 Torque the flare connections to the following values:
Outer diameter (mm)
ø 6.35
ø 9.52
ø 12.70
ø 15.88
CAUTION
• Tighten the flare nuts only to the specified torque. If
a flare nut is overtightened, the flare face may crack,
causing refrigerant leakage.
8 Do not box in or cover the pipe connections. Make sure
that the connections are accessible for testing later in the
installation process and for future servicing.
9 Tape over the end of the pipes so that debris will not enter
the piping when it is passed through the wall. The pipes
will be insulated later in the installation process.
16 English
Flare nut
Connecting pipe
Gas service port
<Low pressure>
Torque (N·m)
14–18
34–42
49–61
68–82
Step 2-4 Connecting the power and
communication cables
If using a multi system, install as described in the
installation manual supplied with the outdoor unit.
WARNING
• Do not modify the power cable in any way. Doing so may
cause electric shock or fire due to poor connection, poor
insulation, or current limit override. Make sure to comply
with the technical standards of electrical installations
and the wiring regulations in the local area.
• This appliance must be properly grounded. Do not
ground the appliance to a gas pipe, plastic water pipe,
or telephone line. Failure to comply may result in
electric shock, fire, and explosion.
1 Connect each wire to its corresponding terminal number.
**07*******
Model **09*******
**12*******
3G X 2.5 mm²,
Power cable
(Outdoor unit)
3G X 1.0 mm²,
Outdoor-to-indoor
power cable
2 X 0.75 mm²,
Communication
cable
Type GL
Before
connecting
Upside
Correct
After
connecting
Correct Correct
(Front
view)
<Circular terminal>
H07RN-F
H07RN-F
H05RN-F
16A
Control box
Non-
Damaged
down circular
Upside Non-
(Side
down fitted
view)