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5. DRAIN PIPING
• Install the drain pipe with downward gradient (1/50 to
1/100) and so there are no rises or traps in the pipe.
• Use general hard polyvinyl chloride pipe (VP25)
[outside diameter 38 mm].
• During installation of the drain pipe, be careful to
avoid applying pressure to the drain port of the
indoor unit.
• When the pipe is long, install supporters (Fig. 27).
• Do not perform air bleeding.
• Always heat insulate (8 mm or over thick) the indoor
side of the drain pipe.
Fig. 27
Drain pipe
Arrange the drain pipe
lower than this position.
Lifted
up
BAD
Supporter
(1) Install insulation for the drain pipe ( See Figs. 28 and
29).
Cut the included insulation material to an appropri-
ate size and adhere it to the pipe.
Fig. 28
Drain pipe insulation
Indoor unit
(accessories)
(drain port)
Fig. 29
Indoor unit
No gap
(2) If "q Right rear piping": fasten the drain pipe with
VT wire so that the pipe slopes correctly within the
indoor unit (Fig. 30).
Fig. 30
Indoor unit (rear view)
GOOD
Wave
BAD
End in water
5 to 6.5 ft (1.5 to 2 m)
Drain pipe
Insulation for Drain pipe
(To be obtained locally.
Length should be at least 8 mm.)
Drain pipe insulation
Drain pipe
10 mm or over
VT wire
Drain hose
6. HOW TO CONNECT WIRING TO THE TERMINALS
1. IF ONE WIRE IS CONNECTED TO ONE
TERMINAL BLOCK
A. For solid core wiring (or F-cable)
(1) Cut the wire end with a wire cutter or wire-
cutting pliers, then strip the insulation to about
15/16" (25 mm) to expose the solid wire.
(2) Using a screwdriver, remove the terminal
screw(s) on the terminal board.
(3) Using pliers, bend the solid wire to form a loop
suitable for the terminal screw.
(4) Shape the loop wire properly, place it on the ter-
minal board and tighten securely with the termi-
nal screw using a screwdriver.
B. For strand wiring
(1) Cut the wire end with a wire cutter or wire-
cutting pliers, then strip the insulation to about
3/8" (10 mm) to expose the strand wiring.
(2) Using a screwdriver, remove the terminal
screw(s) on the terminal board.
(3) Using a round terminal fastener or pliers, secure-
ly clamp a round terminal to each stripped wire
end.
(4) Position the round terminal wire, and replace
and tighten the terminal screw using a screw-dri-
ver.
Fig. 31
Solid wire
Insulation
Wire
Terminal block
2. IF TWO WIRES ARE CONNECTED TO
ONE TERMINAL BLOCK.
A. As a rule, round terminal should be used
to connect to the terminal block.
(1) Cut the wire end with a wire cutter or wire-
cutting pliers, then strip the insulation to about
3/8" (10 mm) to expose the strand wiring.
(2) Using a screwdriver, remove the terminal
screw(s) on the terminal board.
(3) Using a round terminal fastener or pliers, secure-
ly clamp a round terminal to each stripped wire
end.
(4) Position the round terminal wire, and replace
and tighten the terminal screw using a screw-
driver.
– 8 –
Strand wire
Round terminal
Loop
Screw with
special washer
Screw with
special washer
Round
terminal
Terminal
Round
board
terminal
Wire
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