f.
Raising Drain Pipe
In case of raising the drain pipe, install it according to
WKHGLPHQVLRQVKRZQLQWKH¿JXUHEHORZ7KHWRWDOGUDLQ
piping length of a+b+c shall be within 1100mm.
b
c
Drain hose
(Accessory)
Hose band
(Accessory)
DPD[PP
Ceiling
0D[PP
Shorter as
possible
1/25 to 1/100
Down-Slope
Support part
1 to 1.5m
g.
Installing Common Drain Pipe
Install the common drain pipe on a downward slope to
make sure that it is lower than each rising part of the
drain pipe from the indoor unit.
The pipe size of the common drain pipe must be larger
than VP30 (nominal diameter 30mm, outer diameter
38mm) according to the number of the connected indoor
units.
1/25 to 1/100
Downward Slope
Common drain piping (min. VP30)
(Downward slope from rising part)
Drain piping of unit side
This drain
pipe shall be
separating from
other pipes
Vinyl chloride pipe (VP25)
Min. 100mm
(higher as possible)
N O T E
•
'RQRWSURYLGHDQXSZDUGVORSHRUDULVLQJSDUWIRUWKHGUDLQSLSH
2WKHUZLVHWKHGUDLQZDWHUZLOOÀRZEDFNLQWRWKHXQLWDQGLWPD\
FDXVHWKHZDWHUOHDNDJHZKHQWKHXQLWRSHUDWLRQLVVWRSSHG
Rising part
Upward slope
Incorrect installation of drain piping
•
'RQRWFRQQHFWWKHGUDLQSLSHZLWKVDQLWDU\RUVHZDJHSLSHRU
DQ\RWKHUGUDLQDJHSLSH
5
Drainage and Water Leakage Check
After performing drain piping work and the electrical wiring
and before installing the air panel, check to ensure that
ZDWHUÀRZVVPRRWKO\DFFRUGLQJWRWKHIROORZLQJSURFHGXUH
a.
Drainage Operation by Float Switch
7KHIROORZLQJLVUHJXODUSURFHGXUHWRFKHFNWKHÀRDW
switch operation.
i.
Turn ON the power supply.
ii.
Pour 1500cc to 2000cc of water gradually into the
drain pan.
iii.
&KHFNWRHQVXUHWKDWWKHZDWHUÀRZVVPRRWKO\LQVLGH
the transparent drain pipe and drained at the pipe
end, and that no water leakage occurs.
iv.
If the end of the drain pipe cannot be checked
visually, pour another 1500 ~ 2000cc of water to the
GUDLQSDQ,IWKHZDWHURYHUÀRZVIURPWKHGUDLQSDQ
there might be some failure inside the drain pipe.
Recheck the drain pipe.
Position for checking drainage
For checking drainage
(transparent)
Drain hose
(Accessory)
Vinyl tape
(White)
Water
Pour water to the drain pan
Access window
Drain pipe connection
D A N G E R
Be careful that water does not splash on the electrical parts
VXFKDVWKHIDQPRWRUÀRDWVZLWFKRUWKHUPLVWRUV
b.
6LPSOL¿HG2SHUDWLRQRI'UDLQXS0HFKDQLVP
7KHIROORZLQJLVWKHVLPSOL¿HGRSHUDWLRQSURFHGXUHRIWKH
drain-up mechanism.
i.
Turn OFF the power supply.
ii.
Disconnect the service connector (marked with
green).
iii.
7XUQ21WKHSRZHUVXSSO\DQGVWDUWWKHVLPSOL¿HG
operation of the drain-up mechanism.
iv.
Turn OFF the power supply.
v.
Reconnect the service connector.
DRAIN PIPING
PMML0416A rev.0 - 12/2015 - P5415720
24
