LG LB-R0551QC, Owner'S Manual

Page: 59 / 68

Ceiling
5~8mm
Drainage hole
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
Make sure to be closed.
Unit
Drainage pipe
(Local supply)
Thermal insulator
(Local supply)
Drainage hole
CAUTION FOR GRADIENT OF
UNIT AND DRAIN PIPING
Lay the drain hose with a downward
inclination so water will drain out.
10
Frontof view
•Always laythe drainwith downward
inclination(1/50 to1/100).
Preventany upwardflow orreverse flow
inany part.
•5mm orthicker formedthermal insulator
shallalways beprovided forthe drain
pipe.
•Install theP-T rap(or U-Trap) toprevent
awater leakagecaused bythe blocking
ofintake airfilter .
AppliedU-T rapDimension
1. Installd eclination ofthe indoorunit isvery importantfor thedrain ofthe ducttype air
conditioner.
2.Minimum thicknessof theinsulation fort heconnecting pipeshall be5 mm.
•The unitmust behorizontal ordeclined tothe drainhose connectedwhen finished
installation.
CORRECT
CORRECT
INCORRECT
INCORRECT
•Upward routingnot
allowed
CAUTION