Installation Manual 17
ENGLISH
Installation
Drainage hole
U-Trap
B
C
A ≥ 70mm
(2-9/16 inch)
B ≥ 2C
C ≥ 2 x SP
SP = External Pressure
(mmAq)
Ex) External Pressure
= 10mmAq
A ≥ 70mm(2-9/16 inch)
B ≥ 40mm(1-7/12 inch)
C ≥ 20mm(19/24 inch)
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 downware
inclination so water will drain out.
Ceiling
1~3mm
(1/128~3/128 inch)
Drainage hole
Drainage hole
• Alway lay the drain with downward inclination
(1/50 to 1/100).
Prevent any upward flow or reverse flow in any
part.
• 5mm(5/24 inch) or thicker formed thermal
insulator shall always be provided for the drain
pipe.
CORRECT
• Install the P-Trap (or U-Trap) to prevent
a water leakage caused by the blocking
of intake air filter.
Applied U-Trap Dimension
Drain Pump
unuse
INCORRECT
Drain Pump
use
• Upward routing not
allowed
CAUTION
Ceiling
Drain Pump use
Drainage hole
Front of view
1. Install declination of the indoor unit is very important for the drain of the duct type air conditioner.
2. Minimum thickness of the insulation for the connecting pipe shall be 19mm.
• The unit must be horizontal or declined to the drain hose connected when finished installation.
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