User Guide

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Panel Radiator
Applications Manual
Panel Radiator Applications Manual | 07.2017
Technical specifi cations are subject to change without prior notice
Example 2: Two-pipe System Lay-out
Design and select a two pipe panel radiator system with
the following requirements:
Table 15
Description Heat Load Window
Size
Required
BTU/ft
Walk-in closet 2,000 none
Bathroom 5,000 1x2 ft wide 2,500
Bedroom 1 8,000 2x3 ft wide 1,333
Bedroom 2 10,000 2x4 ft wide 1,250
Master Bedroom 12,000 2x4 ft wide 1,500
Total Load: 37,000 Btu/hr
System Parameters:
Maximum Supply Temperature: 194°F (90°C)
Thermostat in master bedroom for ON/OFF control.
Solution: Two-Pipe System Lay-out
1. If suffi cient space is available for radiators, select
radiators based on required heat output and desired
style. Select radiators from Tables 9 & 10 since the
system temperature is similar to those listed.
If the radiators must be sized for the available window
space, determine the minimum needed model radiator
based on the required Btu/ft for each room from Figure
10 with a 194°F (90°C) supply temperature. Use the
same supply temperature for each radiator in a two-pipe
system.
2. Select an overall temperature drop of 20°F (11°C).
3. Compute system fl ow rate as: GPM = Q / 500 / ∆T =
37000 / 500 / 20 = 3.7 GPM
4. Combine all information in tabular form as shown in
Table 2.
Table 16: Radiator Option Determination Chart: Two-Pipe
System
Table 16
Descrip-
tion
Heat
Load
BTU/
ft
Selected
Models
No. and
length of
radiators
Flow-
setter
valve
Walk-in
closet
2000 1 3-4
Bathroom 5000 2,500 1x #22
20"x36"
1x 3ft 6-7
Bedroom
1
8000 1,333 2x #22
12"x36"
2x 3ft 5-6
Bedroom
2
10000 1,250 2x #22
12"x48"
2x 4ft 6-7
Master
Bedroom
12000 1,500 2x #22
20"x48"
2x 4ft 7-N