Step 13 Checking The Earthing - Samsung AC MXAD Series Installation Manual

Installation Procedure
Pipe Pipe size
Ø6.35~Ø9.52
Liquid
pipe
Ø12.7~Ø19.05
Ø6.35
Gas pipe
Ø9.52~Ø19.05
• When installing insulation in places and conditions
below, use the same insulation that is used for
high humidity conditions.
<Geological condition>
– High humidity places such as shoreline, hot
spring, near lake or river, and ridge (when the
part of the building is covered by earth and
sand.)
<Operation purpose condition>
– Restaurant ceiling, sauna, swimming pool etc.
– <Building construction condition>
– The ceiling frequently exposed to moisture
and cooling is not covered.
– e.g. The pipe installed at a corridor of a
dormitory and studio or near an exit that
opens and closes frequently.
– The place where the pipe is installed is highly
humid due to the lack of ventilation system.
24
English
Insulation Type
(Heating/Cooling)
High
Standard
humidity
Remarks
[Less than
[over 30°C,
30°C, 85%]
85%]
EPDM, NBR
9 t 9 t
Internal
13 t 13 t
temperature
is higher
13 t 19 t
than 120°C
19 t 25 t

Step 13 Checking the earthing

If the power distribution circuit does not have a earthing
or the earthing does not comply with specifications, an
earthing electrode must be installed. The corresponding
accessories are not supplied with the air conditioner.
1 Select an earthing electrode that complies with the
specifications given in the illustration.
2 Connect the flexible hose to the flexible hose port.
• In damp hard soil rather than loose sandy or
gravel soil that has a higher earthing resistance.
• Away from underground structures or facilities,
such as gas pipes, water pipes, telephone lines and
underground cables.
• At least two metres away from a lightening
conductor earthing electrode and its cable.
NOTE
• The earthing wire for the telephone line cannot be
used to ground the air conditioner.
Carbon plastic
To grounding screw
50 cm
30 cm
3 Finish wrapping insulating tape around the rest of the
pipes leading to the outdoor unit.
4 Install a green/yellow coloured earthing wire:
• If the earthing wire is too short, connect an
extension lead in a mechanical way and wrap it
with insulating tape (do not bury the connection).
• Secure the earthing wire in position with staples.
NOTE
• If the earthing electrode is installed in an area with
heavy traffic, its wire must be connected securely.
Steel core
Terminal M4
PVC-insulated
green/yellow
wire