Table 4: 25 ton to 30 ton unit dimensions (in.) for return options without an ERW
Unit configuration
If unit has a return fan with modulating damper
If unit has an exhaust fan with backdraft
damper or modulating damper
Dimension set
M
L3
W2
N
O
P
Q
R
M
L3
W2
N
O
P
Q
R
Bottom return, right OA, side exhaust
13.76 33.73 37.61 44.37 35.45 10.22
7.00
17.17 13.76 33.73 51.00 33.45 19.26 21.00
7.00
17.17
Bottom return, right OA, front exhaust
13.76 33.73 37.61 44.37 35.45 10.22
7.00
17.17 13.76 33.73 51.00 33.45 19.26 21.00
7.00
17.17
Bottom return, left OA, side exhaust
13.76 33.73 37.61 14.07 35.45 10.22
7.00
17.17 13.76 33.73 51.00 11.70 19.26 21.00
7.00
17.17
Bottom return, left OA, front exhaust
13.76 33.73 37.61 14.07 35.45 10.22
7.00
17.17 13.76 33.73 51.00 11.70 19.26 21.00
7.00
17.17
Top return, right OA, side exhaust
-
-
-
-
-
-
-
-
8.98
38.00 45.26 25.50 19.26 21.00
7.00
17.17
Top return, right OA, front exhaust
-
-
-
-
-
-
-
-
8.98
38.00 45.26 25.50 19.26 21.00
7.00
17.17
Top return, left OA, side exhaust
-
-
-
-
-
-
-
-
8.98
38.00 45.26 25.50 19.26 21.00
7.00
17.17
Top return, left OA, front exhaust
-
-
-
-
-
-
-
-
8.98
38.00 45.26 25.50 19.26 21.00
7.00
17.17
Dimension set
S
L1
H2
T
O
P
Q
R
S
L1
H2
T
O
P
Q
R
Left return, right OA, front exhaust
11.01 39.00 39.00 10.34 35.45 10.22
7.00
17.17 10.51 40.00 40.00
8.19
19.26 21.00
7.00
17.17
Right return, left OA, front exhaust
11.01 39.00 39.00 10.34 35.45 10.22
7.00
17.17 10.51 40.00 40.00
8.19
19.26 21.00
7.00
17.17
Dimension set
U
W1
H1
V
O
P
Q
R
U
W1
H1
V
O
P
Q
R
Front return, left OA, right exhaust
11.01 39.00 39.00 10.34 35.45 10.22
7.00
17.17 10.51 40.00 40.00
8.19
19.26 21.00
7.00
17.17
Front return, right OA, left exhaust
46.24 39.00 39.00 10.34 35.45 10.22
7.00
17.17 45.74 40.00 40.00
8.19
19.26 21.00
7.00
17.17
Unit configuration
If unit has no fan and barometric damper
Dimension set
M
L3
W2
N
O
P
Q
R
Bottom return, right OA, side exhaust
13.76
33.73
51.00
33.45
22.45
16.55
7.00
17.17
Bottom return, right OA, front exhaust
13.76
33.73
51.00
33.45
22.45
16.55
7.00
17.17
Bottom return, left OA, side exhaust
13.76
33.73
51.00
11.70
22.45
16.55
7.00
17.17
Bottom return, left OA, front exhaust
13.76
33.73
51.00
11.70
22.45
16.55
7.00
17.17
Bottom return, no OA, no EA
13.76
33.73
51.00
33.45
-
-
-
-
Top return, right OA, side exhaust
8.98
38.00
45.26
25.50
22.45
16.55
7.00
17.17
Top return, right OA, front exhaust
8.98
38.00
45.26
25.50
22.45
16.55
7.00
17.17
Top return, left OA, side exhaust
8.98
38.00
45.26
25.50
22.45
16.55
7.00
17.17
Top return, left OA, front exhaust
8.98
38.00
45.26
25.50
22.45
16.55
7.00
17.17
Top return, no OA, no EA
8.98
38.00
45.26
25.50
-
-
-
-
Dimension set
S
L1
H2
T
O
P
Q
R
Left return, right OA, front exhaust
10.51
40.00
40.00
8.19
22.45
16.55
7.00
17.17
Left return, no OA, no EA
10.51
40.00
40.00
8.19
-
-
-
-
Right return, left OA, front exhaust
10.51
40.00
40.00
8.19
22.45
16.55
7.00
17.17
Right return, no OA, no EA
10.51
40.00
40.00
8.19
-
-
-
-
Dimension set
U
W1
H1
V
O
P
Q
R
Front return, left OA, right exhaust
10.51
40.00
40.00
8.19
22.45
16.55
7.00
17.17
Front return, right OA, left exhaust
45.74
40.00
40.00
8.19
22.45
16.55
7.00
17.17
Front return, no OA, no EA
10.51
40.00
40.00
8.19
-
-
-
-
Table 5: 25 ton to 30 ton unit dimensions (in.)
Unit configuration
Unit
length (A)
Unit
height (B)
Unit
width (C)
Unit width
lifting lug to
lifting lug (D)
Evaporator
drain
length (E)
Evaporator
drain
height (F)
SU with vertical filter 4 in., DP (B, L, R, T)
264.40
55.00
96.05
100
95.50
2.50
SU with DP (B, L, R, T)
281.40
55.00
96.05
100
112.50
2.50
SU with pre-evap blank, small post-evap blank, DP (B, L, R, T)
379.40
55.00
96.05
100
165.50
2.50
SU with pre-evap blank, large post-evap blank, DP (B, L, R, T)
421.40
55.00
96.05
100
165.50
2.50
SU with small post-evap blank, DP (B, L, R, T)
326.40
55.00
96.05
100
112.50
2.50
No heat
SU with large post-evap blank, DP (B, L, R, T)
374.90
55.00
96.05
100
112.50
2.50
SU with vertical filter 4 in., discharge through heat section (B, L)
281.40
55.00
96.05
100
95.50
2.50
SU with discharge through heat section (B, L)
298.40
55.00
96.05
100
112.50
2.50
SU with heat, DP (B, L, R, T)
333.00
55.00
96.05
100
112.50
2.50
SU with pre-evap blank, discharge through heat section (B, L)
351.40
55.00
96.05
100
165.50
2.50
SU with pre-evap blank, heat, DP (B, L, R, T)
386.00
55.00
96.05
100
165.50
2.50
SU with pre-evap blank, heat, small post-evap blank, DP (B,L,R,T)
431.00
55.00
96.05
100
165.50
2.50
SU with pre-evap blank, heat, large post-evap blank, DP (B,L,R,T)
473.00
55.00
96.05
100
165.50
2.50
SU with heat, small post-evap blank, DP (B, L, R, T)
379.40
55.00
96.05
100
112.50
2.50
No ERW
Heat
SU with heat, large post-evap blank, DP (B, L, R, T)
421.40
55.00
96.05
100
112.50
2.50
Tempmaster
®
Omni™ Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide
35
Tempmaster
