En-7
10~15
Hanging bolt (locally purchased)
Nut A (locally purchased)
Washer (Accessories)
After installing the body,
tighten the nuts.
Unit: mm
Washer (Accessories)
Nut B (Double Nut)
(locally purchased)
3.3.3. Leveling
Using a level, or vinyl hose
fi
lled with water,
fi
ne adjust so that the body is level.
Inclined installation so as the drain pipe side is higher may cause a malfunction of the
fl
oat
switch, and may cause water leakage.
Vinyl hoses
Drain pipe
3. 4. Drain installation
WARNING
• Do not insert the drain piping into the sewer where sulfurous gas occurs. (Heat
exchange 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
transparent drain port and the drain piping
fi
nal outlet on the body.
CAUTION
Do not apply adhesive agent on the drain port of the body. (Use the attached drain
hose and connect the drain piping.)
3.4.1. Installing the drain pipe:
• Install the drain pipe with downward gradient (1/50 to 1/100) and so there are no rises or
traps in the pipe.
• Use general hard polyvinyl chloride pipe (VP25) [outside diameter 32 mm] and connect it
with adhesive (polyvinyl chloride) so that there is no leakage.
• When the pipe is long, install supporters.
• Do not perform air bleeding.
• Always heat insulate the indoor side of the drain pipe.
• If it is impossible to have suf
fi
cient gradient of pipe, perform drain lift-up.
Pipe size
Drain pipe
VP25 (O.D. 32 mm)
Hanging
fi
ttings
1.5 to 2 m
VP25 (O.D. 32 mm)
Downward gradient 1/100 to 1/50
Rise
PROHIBITED:
Trap
Air bleeding
■
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
Horizontal or
upward gradient
Downward gradient
1/100 to 1/50
VP30 (O.D. 38 mm) or more Downward
gradient 1/100 to 1/50
850 mm or less
3.4.2. Installation procedure
(1) Install the attached drain hose to the drain port of the body. Attach hose band on top of
the drain hose.
(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.
(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
Attached drain hose
heat insulation
Attached heat insulation
Attached
hose band
Locally arranged
vinyl pipe
Attached drain hose
(a) Top view
(c) Top view
(b) Side view
VP25
Applying area of
adhesive
35
4 or less
Gauge line
Hose band
5-10
20
Make sure there
are no gaps
Wind the attached heat insulation
around the hose band
(d) Hose opening view
Make sure the alignment is
on top
Unit: mm
381798070_IM.indb 7
381798070_IM.indb 7
12/5/2018 9:39:32 AM
12/5/2018 9:39:32 AM
