Table 1: Physical data
Unit size
25 ton
30 ton
40 ton
50 ton
60 ton
70 ton
80 ton
Airflow range (min to
max CFM)
5,000–12,000
5,000–12,000
8,000–20,000
8,000–20,000 12,000-24,000 14,000-32,000 14,000-32,000
Total static pressure
range (min to max iwg)
0.5–3.0
0.5–3.0
0.5–3.0
0.5–3.0
0.5–3.0
0.5–3.0
0.5–3.0
Condenser fan
Quantity
2
2
4
4
4
6
6
Type
Propeller
Propeller
Propeller
Propeller
Propeller
Propeller
Propeller
Size (diameter in in.)
30
30
30
30
30
30
30
Power (HP)
2
2
2
2
2
2
2
Evaporator coil - standard capacity, standard efficiency
Size (sq. ft.)
24
24
36
36
49.5
66
66
Number of rows/fins
per in.
3/17
5/17
4/17
4/17
5/17
5/17
6/17
Size (tube diameter in
in.)
3/8
3/8
3/8
3/8
3/8
3/8
3/8
Evaporator coil - high capacity, standard efficiency
Size (sq. ft.)
24
24
36
36
Number of rows/fins
per in.
4/17
6/17
4/17
6/17
Size (tube diameter in
in.)
3/8
3/8
3/8
3/8
Evaporator coil - standard capacity, high efficiency
Size (sq. ft.)
24
24
36
36
49.5
66
66
Number of rows/fins
per in.
4/17
6/17
4/17
6/17
6/17
6/17
6/17
Size (tube diameter in
in.)
3/8
3/8
3/8
3/8
3/8
3/8
3/8
Hot gas reheat (HGRH) coil
Coil type
Microchannel Microchannel Microchannel Microchannel Microchannel Microchannel Microchannel
Control type
Modulating
Modulating
Modulating
Modulating
Modulating
Modulating
Modulating
Size (area in sq. ft./
thickness in in.)
19.5/0.8
19.5/0.8
19.5/1
19.5/1
28/1
33.4/1
33.4/1
Number of rows/fins
per in.
1/23
1/23
1/23
1/23
1/23
1/23
1/23
Minimum outside air
(OA) temperature for
mechanical cooling
45.0°F
Low ambient option
minimum OA
temperature for
mechanical cooling
-10.0°F
Condenser coil - standard capacity, standard efficiency
Size (sq. ft.)
61
61
98
98
153
191
191
Number of rows/fins
per in.
1/23
1/23
1/23
1/23
1/23
1/23
1/23
Size (thickness in in.)
0.8
0.8
0.8
1
1
1
1
Type
Microchannel Microchannel Microchannel Microchannel Microchannel Microchannel Microchannel
Tempmaster
®
Omni™ Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide
10
Tempmaster