6
HE+ Series Modulating Supplemental Manual
Tube
Length
‘
L
’ =
center air intake to end
10’
11’
-
3 3/4”
; 135 3/4”
; 345 cm
20’
20’
-
11 3/4”
; 251 3/4”
; 628 cm
30’
30’
-
7 3/4”
; 367 3/4”
; 934 cm
40’
40’
-
3 3/4”
; 483 3/4”
; 1229 cm
Tube
Length
‘
L
’ =
center air intake to end
50’
49’
-
11 3/4”
; 599 3/4”
; 1523 cm
60’
59’
-
7 3/4”
; 715 3/4”
; 1818 cm
70’
69’
-
3 3/4”
; 831 3/4”
; 2113 cm
80’
78’
-
11 3/4”
; 947 3/4”
; 2407 cm
FIGURE 2 HANGER SPACING / LENGTH
-
AIR INTAKE TO VENT END
•
POSITION BURNER END HANGER 4 INCHES (10 CM) FROM BURNER CONNECTION
•
LOCATE SYSTEM HANGERS NO LESS THAN 6 INCHES (150mm) AND NO MORE THAN 24
INCHES (610mm) FROM TUBE COUPLING
FIGURE 1 HEATER DIMENSIONS
REFLECTOR =
120”
