29
STS
-
JZ
-
F / IQ
-
F I&O Manual Z83.20
-
2016
IM101220
RD: APR 2019
RL: 20C
System Configuration
1 Straight line
2 “
U
”
tube with 2 x 90° elbow kits
3 “
L
”
tube with one 90° elbow kit
4 Twinned tubes into common TEE flue vent
FIGURE 14 SYSTEM ELBOW KIT
-
see page 56 for 180° elbow dimensions
FIGURE 15 SYSTEM CONFIGURATIONS
17.
SYSTEMS INCORPORATING 90° ELBOWS AND 180° ELBOWS
A radiant tube heater can be installed in configurations as illustrated in FIGURE 4. (below) with
a maximum of two 90° elbows per heater. The use of elbows reduces the total maximum vent
allowable. (See Section 9 : Flue venting)
90° elbows (JS
-
0528
-
JZ) are shipped as a kit with one coupler, one reflector and one plate
hanger. For a 180° elbow, order 2 x 90° kits that connect to create a 180°. An optional kit (JS
-
0504
-
JZ) to angle mount a reflector adjacent to an elbow is also available and must be or-
dered separately. The reflectors must be secured to each of the elbow plate hangers with
sheet metal screws.
IMPORTANT
: Models with input 100 Mbh x 20 ft (30 kW x 6 m) must only be in-
stalled as a straight system with no elbows allowed at the 10 ft (3 m) location.
Elbow Location / Input
: A minimum run of straight radiant tube must be connect-
ed to the burner before any elbow as follows: Inputs 200,000 and 175,000 = 25
ft (7.6 m); 150,000 = 20 ft (6 m); 125,000 and 110,000 = 15 ft (4.6 m); and in-
puts 80,000 and 60,000 a minimum of 10 ft (3 m) straight tube before elbow.
JS
-
0504
-
JZ
Angle mounting of the reflector system either side of an el-
bow requires adapter JS
-
0504
-
JZ. The elbow always remains
in a horizontal orientation.
