Installation guide

Installation Manual 11
Installation
Ceiling
CAUTION
1~3mm
Drainage hole
U-Trap
B
C
A ≥ 70mm
B ≥ 2C
C ≥ 2 x SP
SP = External Pressure
(mmAq)
Ex) External Pressure
= 10mmAq
A ≥ 70mm
B ≥ 40mm
C ≥ 20mm
A
Drainage hole
CAUTION FOR GRADIENT OF
UNIT AND DRAIN PIPING
Lay the drain hose with a downware
inclination so water will drain out.
MAX 700mm
Drain Pipe
Drain Pump
1/50~1/1001/50~1/100
Front of view
• Possible drain-head height is up to 700mm.
So, it must be installed below 700mm.
• Keep the drain hose downward up to
1/50~1/100 inclination.
Prevent any upward flow or reverse flow in any
part.
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
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
INCORRECT