En-8
• Provide a downward gradient (1/100 or more).
• Provide supporters when long pipes are installed.
• Use an insulation material as needed, to prevent the pipes from freezing.
• Install the pipes in a way that allows for the removal of the control box.
Gap of 1.5 to 2 m
100 mm or more
Downward gradient
2.5-5.0 mm
Supporter
Locally arranged pipe
GOOD
VP25 [O.D 32 mm
or more]
Air bleeding
Rise
PROHIBITED
Trap
Observe the following procedures to construct centralized drain pipe
fi
ttings.
VP30 or more
[O.D 38 mm or more]
Downward gradient
1/100 or more
3.4.2. Installing the drain hose (accsessory) and drain pipe (locally purchased)
(1) Be sure to use supplied Drain hose and Hose band
Hose band (accessory)
Drain
hole
Drain hose (accessory)
Hard PVC side
Hose band
4 mm or less
20 mm
Hose band
Drain hose
Fasten the Hose band at the position where
horizontal against ground.
The Hose band must be positioned at the right
side of the Drain hose as in the
fi
gure.
(2) Be sure to connect Drain pipe with adhesive (polyvinyl chloride) so that there is no
leakage.
Applying
area of
adhesive
Joint pipe
(Locally purchased)
Drain pipe (VP25)
(Locally purchased)
4 mm or less
CAUTION
Do not connect to the Drain hole with adhesive. Using adhesive may cause damage
and water leaks.
(3) After installing the Drain hose, check if the drainage is smooth.
CAUTION
To prevent excessive force on Drain hose, avoid bends or twists. (To bend or twist
may cause water leaks.)
(4) After checking for drainage, attach the Drain hose insulation B to insulate, following
the instructions as in the
fi
gures.
To avoid space with Drain hose and Hose band, press
fi
rmly the Drain hose insulation B.
Drain hose
insulation B
(accessory)
Ensure there is
no space.
• STEP 1 to STEP 3
Butt the insulation
against the unit.
STEP 1
Unit
Slit
Press
fi
rmly
Press
fi
rmly
STEP 2
Slit
Press
fi
rmly
Roll the
insulation
over the joint.
Press
fi
rmly
STEP 3
Press
fi
rmly
Slit
• FINISH
Check that there is no gap between the unit and the drain hose insulation.
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2018/12/11 10:11:34
2018/12/11 10:11:34
