Samsung ASH-1808DR, Service Manual

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3-8
Samsung Electronics
3-2-2(f) Grounding
(The Parts for this work are optional.)
Operating Instructions and Installation
• A g rounding terminal can be found on
the outdoor unit as illustrated.
1 . When an existing grounding terminal is avilable.
( G rounding wire of ø1.6mm or larger<solid
w i re>or 2mm
2
or larger <standard wire > )
2 . Use of a grounding electro d e .
• Specifications of grounding electro d e .
Terminal used exclusively
for grounding.
Steel core Carbon plastic
PVC-Insulated(2mm 2 x3.5m), green Terminal, M4
Grounding resistance ;
Less than 100 ohms
(existing grounding electrode)
No. JOB EXPLANATION PRECAUTIONS
1 Determine the • Suitable location • Avoid sandy or gravelly soil as its grounding
grounding position. a) Place that is always dank. resistance is high.
b) Hard soil rather than loose sandy soil. • The grounding wire for the telephone line cannot
be used for the grounding of the air conditioner.
• Unsuitable location • When the grounding electrode is to be installed
a) Where there are underground structures or under a place with heavy traffic, its wire must be
facilites such as gas pipes, water pipes, connected firmly with the utmost care.
telephone lines, underground cables, etc.
b) A place 2m or less from the lightning arrester
grounding electrode and its cable.
2 Drive the grounding a) Dig a hole to the size illustrated,
electrode into position. and drive in the grounding electrode.
b) Cover the top of the grounding
electrode with excavated soil.
3 Put the grounding a) If the grounding wire is too short, connect an • The grounding wire should be a green
wire in order. extention lead to it. Solder the joint and insulated wire of ø1.6mm or 2mm 2 or larger.
wrap it with tape. • The soldered joint should not be buried
b) Fasten the grounding wire with staples. underground.
4 Check the a) After grounding work, measure the grounding
workmanship, resistance with a grounding resistance tester.
and provide
corrective
b) If the resistance is above a specified level,
measures if drive the grounding electrode in deeper
necessary. or increase the number of grounding
electrodes.
5 Connect the Secure the grounding wire to the
grounding grounding terminal of the air conditioner
wire to the air
conditioner.