Design Technical Manual

Table Of Contents
CENTRAL DRAIN PROCESS
When converging multiple drain pipes , install according to the procedure shown below.
z
For Compact Cassette type, Circular Flow Cassette type, Cassette type
A
Compact Cassette type 28 in. (700 mm) or less
Circular Flow Cassette type
Cassette type
34 in. (850 mm) or less
z
For High static pressure duct type
z
For Mini duct type, Slim duct type
Select converging drain pipes whose diameter is suitable for the operating capacity of the unit.
4 in. (100 mm) or more
4 in. (100 mm ) or more
A
28 in. (700 mm)
or less
T-joint converging drain pipes
VP30 (O.D. 1-1/2 [38 mm]) or more
Downward gradient 1/100 to 1/50
- (06 - 148) -
SYSTEM
DESIGN
SYSTEM
DESIGN