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25
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♦ Additional refrigerant charge
When refrigerant piping exceeds 7.5m conduct additional refrigerant charge after refrigerant sweeping.
7.5m over 15m:Additional charge amount per meter = 10g/m
[Example]
How much amount of additional charge for 15m piping?
(15 – 7.5)m × 10g/m=75g 75g for additional charge
(4) Insulation of connecting portion
Vinyl tape
To cover the connecting portion with insula-
tion materials, cut upper portion and then seal
it with insulation materials.
Cover the exterior portion with cov-
ering tape and shape the piping so it
will match the contours of the route
that the piping to take. Also fix the
wiring and pipings to the wall with
clamps.
Insulation
Refrigerant piping
Electrical wiring
Covering tape
Drain hose
Tapping screw
(a) Cover the connection portion of the refrigerant piping with the
pipe cover and seal them.
If neglecting to do so, moisture occurs on the piping and water
will drip out.
(b) Finishing and fixing
1) Tie up the piping with wrapping tape, and shape it so that it
conforms to which the pipe is attached.
2) Fix them with clamps as right figure.
1.5.5
Installation of remote control switch
(1) Mounting method of battery
• Uncover the remote control switch, and mount the bat-
teries [R03(AAA, Micro)×2 pieces] in the body regu-
larly.
(Fit the poles with the indication marks, , & . with-
out fail)
(b) Fixing to pillar or wall
• Conventionally, operate the wireless remote control by
holding in your hand.
• Avoid installing it on a clay wall etc.
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+
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Battery
Cover
Screws
1.5.6
Earthing work
• Earth work shall be carried out without fail in order to prevent electric shock and noise generation.
• The connection of the earth cable to the following substances causes dangerous failures, therefore it shall never be done.
City water pipe, Town gas pipe, TV antenna, lightning conductor, telephone line, etc.
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