Design Technical Manual

Table Of Contents
HIGH STATIC PRESSURE DUCT TYPE
z
Main drain pipe
H1
H2
60. to 79in. (1.5 to 2.0m)
Unit
Trap
Drain hose (main)
Drain pipe (main)
H1 = 4in. (100mm) or more
H2 = 2 - 4in.
(50-100mm)
Be sure to provide a drain trap for each indoor units.
The drain trap will have no e󰀨ect 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.
z
Safety drain pipe
There is no need to provide a trap for the overow drain. If the overow drain is connected
to the main drain pipe, make the connection below the trap on the main drain pipe.
Once installation is complete, check the ow of the drain water.
Unit
Drain hose (main)
Drain hose (safety)
Drain pipe (main)
Overow Drain (safety)
- (06 - 142) -
SYSTEM
DESIGN
SYSTEM
DESIGN