Trane Performance Climate Changer UCCA Series - Duct Connections; Condensate Drain Connections; Fan Discharge Connections

Installation - Mechanical
CLCH-SVX009L-EN 35
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 downstream of the trap must
flow continuously downhill. If segments of the line are routed
uphill, this can cause the drain line to become pressurized.
With a pressurized drain line, the trap can back up into the
drain pan, causing it to overflow. See “Drain Pan Trapping,”
p. 38.
Fan Discharge Connections
To ensure the highest fan efficiency, duct turns and transitions
must be made carefully, minimizing air friction losses and
turbulence. Proper ductwork installation, as outlined by such
organizations as Sheet Metal and Air Conditioning Contractors
National Association, Inc. (SMACNA), should be followed
closely.
Figure 37. Angle filter arrangement
Size 3
5.60 ft²
Size 6
11.10 ft²
Size 8
12.50 ft²
Size 10
15.60 ft²
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16
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16
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Size 14
21.70 ft²
25
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Size 17
30.00 ft²
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Size 21
31.10 ft²
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Size 25
41.70 ft²
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Size 30
48.90 ft²
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Size 12
21.70 ft²
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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