Trane Precedent THJ072A Installation, Operation And Maintenance Manual page 29

Figure 30. 15 to 25 ton high efficiency – horizontal
airflow supply/return
23 11/16''
[603]
22 3/8''
[570]
4 9/16''
[114]
7 15/16''
[202]
14 1/16''
[357]
Supply and return air openings as viewed from a downflow
configuration are shown in the following drawings.
Elbows with turning vanes or splitters are recommended to
minimize air noise due to turbulence and to reduce static
pressure.
When attaching the ductwork to the unit, provide a water
tight flexible connector at the unit to prevent operating
sounds from transmitting through the ductwork.
All outdoor ductwork between the unit and the structure
should be weather proofed after installation is completed.
Figure 31. 6 to 10 tons high efficiency – downflow
airflow supply/return, through-the-base utilities
3 5/8"
92 MM
17 1/2"
9 7/8" 17 1/2"
444 MM
251 MM 444 MM
4"
102 MM
SUPPLY
RETURN
32 1/8"
816 MM
838 MM
THROUGH THE
BASE CONDENSATE
4 1/8"
104 MM
27 5/8"
701 MM
RT-SVX074A-EN
RETURN
20 ''
[508]
26 3/4''
[679]
29''
[737]
25 1/2''
[648]
5 1/2''
[141]
33"
40 3/4"
1035 MM
3 3/4"
95 MM
5"
THROUGH THE 127 MM
BASE ELECTRICAL
5 7/8"
149 MM
10 7/8"
276 MM
Figure 32. 12.5 tons high efficiency – downflow
airflow supply/return, through-the-base utilities
3 5/8"
92 MM
17 1/2"
444 MM
4"
102 MM
5 1/4''
[133]
RETURN
32 1/8"
816 MM
46 1/2''
[1181]
6''
[153]
4 1/8"
104 MM
27 5/8"
701 MM
Figure 33. 15 to 25 tons high efficiency – downflow
airflow supply/return, through-the-base utilities
7"
177 MM
6 5/8''
167 MM
73 5/8"
1868MM
Table 3.
2 3/4"
71 MM
6 1/2"
165 MM
Model Number
THJ072
THJ090
THJ102
THJ120
THJ150
THJ180
THJ210
THJ240
THJ300
9 7/8"
251 MM
17 1/2"
444 MM
SUPPLY
33"
838 MM
THROUGH THE
BASE ELECTRICAL
THROUGH THE
BASE CONDENSATE
4 5/8"
119 MM
5 7/8"
149 MM
THROUGH THE
BASE GAS
14 3/8" 40" 19 3/8"
365 MM 1002MM 488MM
14 7/16"
365MM
65"
1652MM
8''
55 3/8''
205MM
1404MM
55.0577
[1398.467]
THROUGH
THE BASE
55.2977
ELECTRICAL
[1404.563]
Clearance required from duct to combustible
surfaces
Clearance required from duct to
combustible surfaces (inches)
Installation
2 3/4"
71 MM
6 3/8"
163 MM
42 3/16"
1072 MM
51 3/16"
1316 MM
8 3/8"
212MM
48"
1223MM
THROUGH
THE BASE GAS
(Y_J MODELS
ONLY)
0
0
0
0
0
0
0
0
0
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