INSTALLATION OF INDOOR
ENGLISH
11
Caution for gradient of unit and
drain piping
Lay the drain hose with a downward inclina-
tion so water will drain out.
- Always lay the drain with downward inclina-
tion (1/50 to 1/100). Prevent any upward flow
or reverse flow in any part.
- 5 mm or thicker formed thermal insulator
shall always be provided for the drain pipe.
- Upward routing not allowed
- Install the P-Trap (or U-Trap) to prevent a
water leakage caused by the blocking of in-
take air filter.
Ceiling
Ceiling
1~3 mm
Drain hole
Drain pump unuse
Drain pump use
Drain hole
• Install declination of the indoor unit is very
important for the drain of the duct type air
conditioner.
• Minimum thickness of the thermal insulator
for the connecting pipe shall be 5 mm.
• The unit must be horizontal or declined to
the drain hose connected when finished
installation.
CAUTION
!
Drain hole
Make sure to be closed.
Unit
Drain pipe
(Local supply)
Thermal insulator
(Local supply)
CORRECT
INCORRECT
U-Trap
B
C
A 70 mm
B
2C
C 2 x SP
SP = External static pressure
(mmAq)
Ex) External static pressure
= 10 mmAq
A 70 mm
B
40 mm
C 20 mm
A
Summary of Contents for ABNQ18GM1A0
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