Cassette Type FCU
11
damage the ceiling and decoration.
Added drain pipe
Insulation
Teflon
Drain pipe
of the
indoor unit
(4) Insert one end of the drain pipe to the drain hole and tighten it with the drain hose and tiers. The drain
hose cannot be connected to the drain hole with adhesive.
(5) When the drain pipe is used for multiple sets of equipment, it should be placed 10mm lower than the
drain outlet of each equipment. For this special purpose, the pipe with quite thick pipe wall should be
used.
2.7.2 Installation Steps of the Drain Pipe
(1) The spacing should be kept between 1~1.5m.
1-1.5m
(Correct) 1/100 ro more gradient
(Wrong)
(2) Insert the drain hose to the water outlet and x it with the clamp.
(3) For better insulation, the sponge should be wrapped around the clamp.
Sponge
Clamp
Clamp
＜4mm
Sponge
Drain hose
2.7.3 Precautions for the Raising Pipe
(1) The height of the raising pipe should be less than 280mm.
(2) The raising pipe should be at a right angle to the unit and keep a distance with the unit within 300mm.
below500mm
.
Within 300mm
Drain raising
hose
220mm
Ceiling
Clamp
Hoisting stand
Roof
Drain hose
1-1.5m
below
280mm
Notes:
(a) The inclination degree of the attached drain hose should be kept within 75mm.
(b) Do not apply outer force to the drain pipe.
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