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SECTION 3: CLEARANCES TO COMBUSTIBLES
7
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream
from where the burner and burner tube connect.
FIGURE 3: STANDARD REFLECTOR
(inches) (centimeters)
Model ABCDABCD
HE-40 6 27 53 27 16 69 135 69
HE-60 6 35 63 35 16 89 161 89
HE-80 6 38 66 38 16 97 168 97
HE-100 6 40 71 40 16 102 181 102
HE-125 6 46 77 46 16 117 196 117
HE-150 6 50 80 50 16 127 204 127
HE-175 8 52 82 52 21 133 209 133
FIGURE 4: ONE SIDE REFLECTOR
(inches) (centimeters)
Model ABCDABCD
HE-40 6 9 53 44 16 23 135 112
HE-60 6 9 63 47 16 23 161 120
HE-80 6 9 70 54 16 23 178 138
HE-100 6 9 77 59 16 23 196 150
HE-125 6 9 83 65 16 23 211 166
HE-150 6 9 86 69 16 23 219 176
HE-175 8 9 88 73 21 23 224 186
A
C
D
B
FIGURE 5: TWO SIDE REFLECTORS
(inches) (centimeters)
Model ABCDABCD
HE-40 6 15 53 15 16 39 135 39
HE-60 6 23 66 23 16 59 168 59
HE-80 6 25 72 25 16 64 183 64
HE-100 6 27 78 27 16 69 199 69
HE-125 6 32 84 32 16 82 214 82
HE-150 6 35 88 35 16 89 224 89
HE-175 8 40 91 40 21 102 232 102
A
C
D
B