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High static pressure duct type
• Main drain pipe
H 1
H 2
Unit
Trap
Drain hose (main)
Drain pipe (main)
H1 = 100 mm or more
H2 = 50 - 100 mm
1.5 to 2.0 m
– Be sure to provide a drain trap for each indoor units.
– The drain trap will have no effect if placed after multiple indoor units.
– The position of the installed drain hose should have a downward slope of 1/100 or more.
– Make sure that the drain hose is installed without rises.
– Make the trap near to the indoor unit, position the trap in a location where it can be cleaned.
• Safety drain pipe
There is no need to provide a trap for the overflow drain. If the overflow drain is connected to the
main drain pipe, make the connection below the trap on the main drain pipe. Once installation is
completed, checked the flow of the drain water.
Unit
Drain hose (main)
Drain hose (safety)
Drain pipe (main)
Drain pipe (safety)
5-2. Indoor unit - (06-74) - 5. Drain connection
SYSTEM
DESIGN
SYSTEM
DESIGN
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