77501 Applications Manual
Applications manual
| 15
Panel Radiator
Applications Manual
Panel Radiator Applications Manual | 11.2019 Technical specifi cations are subject to change without prior notice
5. Radiator Output Ratings
Outputs depend on panel radiator size, average water
temperature, and room temperature.
Four examples are presented below to illustrate a range
of options. If none of them applies, use Figure 10 and
Table 9 to determine output based on individual
requirements.
Tables 7 and 8 show the outputs of Model 21 and 22
in-stock radiators at four diff erent water temperatures.
Use the high temperature column if restricted in wall
space. To maximize effi ciency in condensing boiler
applications, ensure the return water temperature drops
below the fl ue gas’ dew point of 131°F (55°C) for
signifi cant periods of the heating season.
2½
Radiator outputs in BTU/Hr:
Model 21 Table 7
Dimensions BTU Output
H x L x W
(inches)
H x L x W
(mm)
180°F
(82°C)
160°F
(71°C)
140°F
(60°C)
12" x 24" x 2.5" 300 x 600 x 66 1838 1387 970
12" x 36" x 2.5" 300 x 900 x 66 2756 2080 1455
12" x 48" x 2.5" 300 x 1200 x 66 3675 2773 1940
12" x 59" x 2.5" 300 x 1500 x 66 4594 3467 2425
12" x 71" x 2.5" 300 x 1800 x 66 5513 4160 2910
20" x 24" x 2.5" 500 x 600 x 66 2713 2038 1417
20" x 36" x 2.5" 500 x 900 x 66 4070 3057 2125
20" x 48" x 2.5" 500 x 1200 x 66 5427 4075 2833
20" x 59" x 2.5" 500 x 1500 x 66 6784 5094 3541
20" x 71" x 2.5" 500 x 1800 x 66 8140 6113 4250
24" x 24" x 2.5" 600 x 600 x 66 3138 2351 1629
24" x 36" x 2.5" 600 x 900 x 66 4706 3526 2443
24" x 48" x 2.5" 600 x 1200 x 66 6275 4701 3258
24" x 59" x 2.5" 600 x 1500 x 66 7844 5876 4072
24" x 71" x 2.5" 600 x 1800 x 66 9413 7052 4887
* Calculations based on a 69° F (20°C) Required Room Temperature
and a 20° F (11°C) ΔT
Model 22 Table 8
Dimensions BTU Output
H x L x W
(inches)
H x L x W
(mm)
180°F
(82°C)
160°F
(71°C)
140°F
(60°C)
12" x 16" x 4" 300 x 400 x 102 1573 1180 819
12" x 24" x 4" 300 x 600 x 102 2359 1769 1228
12" x 36" x 4" 300 x 900 x 102 3539 2654 1842
12" x 48" x 4" 300 x 1200 x 102 4719 3539 2456
12" x 59" x 4" 300 x 1500 x 102 5898 4423 3070
12" x 71" x 4" 300 x 1800 x 102 7078 5308 3684
20" x 16" x 4" 500 x 400 x 102 2341 1753 1215
20" x 24" x 4" 500 x 600 x 102 3511 2630 1822
20" x 36" x 4" 500 x 900 x 102 5266 3945 2733
20" x 48" x 4" 500 x 1200 x 102 7022 5260 3644
20" x 59" x 4" 500 x 1500 x 102 8777 6575 4555
20" x 71" x 4" 500 x 1800 x 102 10533 7889 5467
24" x 16" x 4" 600 x 400 x 102 2713 2031 1406
24" x 24" x 4" 600 x 600 x 102 4069 3046 2109
24" x 36" x 4" 600 x 900 x 102 6104 4569 3164
24" x 48" x 4" 600 x 1200 x 102 8139 6092 4218
24" x 59" x 4" 600 x 1500 x 102 10173 7615 5273
24" x 71" x 4" 600 x 1800 x 102 12208 9139 6327
36" x 16" x 4" 900 x 400 x 102 3833 2856 1965
* Calculations based on a 69° F (20°C) Required Room Temperature
and a 20° F (11°C) ΔT