Guidelines When Installing The Drain Piping - Daikin FCAHG71HVEB Installer And User Reference Manual

6.2.3 Guidelines when installing the drain piping

General guidelines
FCAHG71~140HVEB
Split system air conditioners
4P561449-1B – 2021.07
A
1
2
1
2
a b c
C
2
1
1
A In case of installation with standard decoration panel
B In case of installation with fresh air intake kit
C In case of installation with self-cleaning decoration panel
D In case of installation with design decoration panel
a Suspended ceiling
b Installation guide (accessory)
c Unit
▪ Level. Make sure the unit is level at all 4 corners using a level or a water-filled
vinyl tube.
a b
a Level
b Vinyl tube
c Water level
NOTICE
Do NOT install the unit tilted. Possible consequence: If the unit is tilted against the
direction of the condensate flow (the drain piping side is raised), the float switch
might malfunction and cause water to drip.
Make sure condensation water can be evacuated properly. This involves:
▪ General guidelines
▪ Connecting the drain piping to the indoor unit
▪ Checking for water leaks
▪ Pipe length. Keep drain piping as short as possible.
▪ Pipe size. Keep the pipe size equal to or greater than that of the connecting pipe
(vinyl pipe of 25 mm nominal diameter and 32 mm outer diameter).
▪ Slope. Make sure the drain piping slopes down (at least 1/100) to prevent air
from being trapped in the piping. Use hanging bars as shown.
B
2
2
1
1
D
1
2
2
c
b
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