Front of view
• Always lay the drain with downward inclination
(1/50 to 1/100).
Prevent any upward flow or reverse flow in any part.
• 5mm or thicker formed thermal insulator shall
always be provided for the drain pipe.
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 5mm.
• The unit must be horizontal or declined to the drain hose connected when finished installation.
CORRECT
INCORRECT
• Upward routing not
allowed
Applied U-Trap Dimension
• Install the P-Trap (or U-Trap) to prevent
a water leakage caused by the blocking
of intake air filter.
INCORRECT
CORRECT
5. Duct Type Indoor Unit