Johnson Controls CICS015B21S, Engineering Manual

Page: 49 / 72

OPTIONAL PARTS
TC-18004-rev.2
3-15
● Use the accessory L-shaped pipe to create vertical
condensate piping. Otherwise, the drain water will flow back
to the unit, causing overflowing. Additionally, do not create a
rising part at the top of the L-shaped pipe.
● Do not create a rising part for the condensate piping or
upper slope. The drain water will flow back to the unit and
it may cause water leakage when the unit operation is
stopped.
● Do not connect the condensate pipe with sanitary or
sewage piping or any other condensate piping. When the
common condensate piping is provided for multiple indoor
units, the connected position of each indoor unit must
be higher than the common piping. The pipe size of the
common condensate pipe must be larger than VP30 (nominal
diameter 1-3/16 inches (30mm), outer diameter 1-1/2 inches
(38mm)) according to the number of indoor units.
(6) Connect the already-installed condensate pipe
with the drain-up mechanism (
1
).
(Tightening Torque: 1.8 to 2.5 lbf-ft
(2.5 to 3.4 N-m))
(7) Connect the connection at the indoor unit to the
connection at the drain-up mechanism (
1
) with
the condensate hose attached to the indoor unit.
Fix each condensate pipe connection using the
hose band attached to the indoor unit.
NOTE:
Do not use adhesive at the condensate hose
connection because the condensate hose
connection is required to be removed for
servicing.
(8) Wrap two insulations attached to the indoor unit
around the hose band.
NOTE:
Insert the condensate hose completely without
any gap. Attach the insulation without any gap to
prevent condensation.
(9) After the condensate piping work is completed,
ensure there is no air gap at the connection
location. If there is a gap, cut the insulation (
11
)
and fill in the gap.
Down-Slope
5-7/8 ~ 23-5/8 inches
(150 ~ 600mm)
Rising Part
Upward Slope
PVC Pipe (VP25)
This condensate pipe must be
separated from other pipes.
Common Condensate Piping (Min. VP30)
(Down-Slope from Rising Part)
1/25 to 1/100 of Down-Slope
Min. 3-15/16 inches (100mm)
(Higher if possible)
Condensate Pump Body
1
Indoor Unit
(Right Side)
Hose Bands
(Attached to Indoor Unit)
Condensate Hose
(Attached to Indoor Unit)
Two Insulations
(Attached to Indoor Unit)
(Bottom Side)
If the direction is incorrect,
it may cause water leakage.
Fixing Direction of Hose Band