Applications manual
| 27
Panel Radiator
Design Manual
Panel Radiator Design Manual | 12.2009
Technical specifications are subject to change without prior notice
Design Procedure for Two-Pipe System
1. Determine individual heat loads.
2. Select desired overall temperature drop of systems
(∆T); i.e. 20°F (11°C), 30°F (17°C) or 40°F (22°C).
3. Compute loop flow rate GPM from:
GPM = Q / 500 / ∆T
4. Use Figure 10 or the Conversion Factors in Table 9 to
determine output of radiator models in case of lower
supply temperatures.
5. Use the Pressure Drop Chart on pages 30-31 as a
guide to set the flow setter valve for each radiator to
ensure proper flow through each radiator. Adjust flow
setter valves as needed based on system
performance. Close down the flow setter on “hot”
radiators by dialing in a lower setting on the adjustment
ring, or adjust the flow setter to a higher setting for
“cool” radiators.
6. Size piping based on system flow rate; size circulator
based on flow rate and overall system pressure drop.
Table 14
1
Select
room
sequence
Room 1
Room 2
Room 3
Room 4
2
Heat load
per room
3
(BTU/hr)
4
Available
wall space
(ft)
5
Minimum
Required
Heat Load
per linear
ft (BTU/ft)
ΔT =___ºF Supply temp(room1) =max supply
temp= _______ ºF
6
Total
heat load
(BTU/ft)
Q = __________BTU/Hr
7
Total loop
GPM
GPM(loop) = Q / (500xΔT) = ______ GPM
8
Supply
temp per
room
____ºF
____ºF
____ºF
____ºF
9
List
possible
radiator
Models
and sizes
