The indoor unit installation
Installation Manual
17
ENGLISH
Drainage hole
U-Trap
B
C
A
≥ 70 mm
B
≥ 2C
C ≥ 2 x SP
SP = External Pressure
(mmAq)
Ex) External Pressure
= 10 mmAq
A
≥ 70 mm
B ≥ 40 mm
C ≥ 20 mm
A
Make sure to be closed.
Unit
Drainage pipe
(Local supply)
Thermal insulator
(Local supply)
CAUTION FOR GRADIENT OF
UNIT AND DRAIN PIPING
Lay the drain hose with a downward
inclination so water will drain out.
• Always lay the drain with downward
inclination.
Prevent any upward flow or reverse flow
in any part.
• 10 mm or thicker formed thermal insulator
shall always be provided for the drain
pipe.
• Install the P-Trap (or U-Trap) to prevent
a water leakage caused by the blocking
of intake air filter.
Applied U-Trap Dimension
CORRECT
INCORRECT
• Upward routing not
allowed
1,MFL67939921,영영 2018. 8. 2. 영영 1:41 Page 17
