Installation - Mechanical
CLCH-SVX009A-EN
27
Duct Connections
All duct connections to the air handlers should be installed
in accordance with the standards of the National Fire
Protection Association (NFPA):
•
NFPA 90A for installing air conditioning and ventilating
systems other than residence type.
•
NFPA 90B for residence-type warm air heating and air-
conditioning systems.
See unit submittal documentation for additional duct
mounting information.
Condensate Drain Connections
The main drain line and the trap must be the same size as
the drain connection. Drain traps must be primed. If they
are not, the trap is essentially non-existent and the drain
will likely overflow. Plug or trap the auxiliary drain
connection, if applicable. If the auxiliary drain connection
is left open, air can be drawn in through the opening. This
drawn in air can cause moisture carryover. All drain lines
Figure 21.
Angle filter arrangement
Size 3
5.60 ft²
Size 6
11.10 ft²
Size 8
12.50 ft²
Size 10
15.60 ft²
25
16
25
16
20
20
20
20
20
20
20
20
25
20
25
20
20
20
20
20
20
20
20
20
20
20
20
20
20
16
20
16
Size 14
21.70 ft²
25
16
25
16
25
16
20
16
20
16
20
16
20
16
20
16
20
16
Size 17
30.00 ft²
20
20
20
20
20
20
20
20
20
20
20
20
20
16
20
16
20
16
20
16
20
16
20
16
Size 21
31.10 ft²
25
16
25
16
25
16
25
16
25
16
25
16
25
16
25
16
20
16
20
16
20
16
20
16
Size 25
41.70 ft²
25
20
25
20
25
20
25
20
25
20
25
20
25
20
25
20
25
20
25
20
25
20
25
20
Size 30
48.90 ft²
20
20
20
20
20
20
20
20
20
16
20
16
20
16
20
16
20
16
20
16
20
16
20
16
20
16
20
16
20
16
20
16
Size 12
21.70 ft²
25
16
25
16
25
16
20
16
20
16
20
16
20
16
20
16
20
16
20
20
20
20
20
20
20
20
30.00
43.00
47.00
59.00
5.00
2.00
3.00
3.00
67.00
2.00
75.00
3.00
75.00
5.00
2.00
77.00
90.00
2.00
67.00
2.00
