AirStage AUXK024GLEH Installationshandbuch - Seite 6
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4.4. Installing heat insulation
After checking for gas leaks (refer to the Installation Manual of the outdoor unit), perform
this section.
Install heat insulation around both the large (gas) and small (liquid) pipes. Failure to do
so may cause water leaks.
After checking for gas leaks,
insulate by wrapping insula-
tion around the 2 parts (gas
and liquid) of the indoor unit
coupling, using the Coupler
heat insulation.
After installing the Coupler
heat insulation, wrap both ends
with vinyl tape so that there is
no gap.
Must fit tightly against body without any gap.
5. INSTALLING DRAIN PIPES
Do not insert the drain piping into the sewer where sulfurous gas occurs. (Heat ex-
change erosion may occur)
Insulate the parts properly so that water will not drip from the connection parts.
Check for proper drainage after the construction by using the visible portion of transpar-
ent drain port and the drain piping final outlet on the body.
Do not apply adhesive agent on the drain port of the body. (Use the attached drain hose
and connect the drain piping)
• Install the drain pipe with downward gradient (1/100 to 1/50) and so there are no rises or
traps in the pipe. Unsmooth draining caused by accumulated water flow in the pipe may
cause clogged drain.
• Use general hard polyvinyl chloride pipe (VP25) [outside diameter 32 mm].
• When the pipe is long, install supporters.
• Do not perform air bleeding. Drainage may
be blown out.
• If it is impossible to have sufficient gradient of
pipe, perform drain lift-up.
Hanging fittings
VP25 (O.D. 32 mm)
Downward gradient 1/100 to 1/50
PROHIBITED:
Rise
When lifting up drain:
• Height of inclined pipe should be less than 850 mm from the ceiling. A rise dimension
over this range will cause leakage.
• Lift up the pipe vertically at the position of 300 mm or less from the unit.
300 mm or less
VP25 (O.D. 32 mm)
local arrangement
850 mm or less
En-5
CAUTION
Cable tie (Large)
(Accessories)
Coupler heat
insulation
(Accessories)
Body
Coupler heat
Be sure to overlap
insulation
the insulation
CAUTION
WARNING
CAUTION
Pipe size
Drain pipe
VP25 (O.D. 32 mm)
1.5 to 2 m
Trap
Air bleeding
Downward gradient
1/100 to 1/50
850 mm or less
Horizontal or
upward gradient
VP30 (O.D. 38 mm) or more
Downward gradient 1/100 to 1/50
Working procedure
(1) Install the attached drain hose to the drain port of the body. Install the hose band
from the top of the hose within the graphic display area. Secure firmly with the hose
band.
(2) Use vinyl adhesive agent to glue the drain piping (PVC pipe VP25) which is prepared
on site or elbow socket. (Apply color adhesive agent evenly until the gauge line and
seal)
(3) Check the drainage. (See separate diagram)
(4) Install the heat insulation.
(5) Use the attached heat insulation to insulate the drain port and band parts of the body.
Install the knob
faces upward
No gap
Attached drain hose
heat insulation
(Accessories)
(a) Top view
20 mm
(c) Top view
Make sure there are no gaps
Attached hose band
(Accessories)
Attached heat insulation
(Accessories)
(b) Side view
Applying area
of adhesive
Hose Band
35 mm
5 to 10 mm
Gauge line
(d) Hose opening view
Wind the attached heat insulation
around the hose band
Make sure the
alignment is on top
Locally arranged
vinyl pipe
Attached drain hose
(Accessories)
VP25
4 mm or less