Fujitsu AIRSTAGE J-III L AJ 072LELAH Series Design & Technical Manual page 754

„ HIGH STATIC PRESSURE DUCT TYPE
„
z Main drain pipe
„
Unit
Drain pipe (main)
H1 = 100 mm or more
H2 = 50-100 mm
● Be sure to provide a drain trap for each indoor units.
„
● A trap will have no effect if positioned after the flows from multiple indoor units have joined
„
together.
● The position of the installed drain hose should have a downward gradient 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 safety drain pipe. If the safety drain pipe is connected
to the main drain pipe, make the connection below the trap on the main drain pipe.
Once installation is complete, check the flow of the drain water.
Unit
Drain hose (safety)
Drain pipe (safety)
Drain hose (main)
H
1
H
2
Trap
1.5m to 2.0m
Drain hose (main)
Drain pipe (main)
- (06 - 63) -