Filter
Top Products
SECTION 3: CRITICAL C ONSIDERATIONS
5
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 5: U-TUBE, STANDARD REFLECTOR
(inches) (centimeters)
Model ABCDABCD
CTHN-40
- UNAPPROVED - - UNAPPROVED -
CTHN-60 5 27 56 19 13 69 142 48
CTHN-80 5 30 61 20 13 76 155 51
CTHN-100 5 32 63 20 13 81 160 51
CTHN-125 5 35 66 20 13 89 168 51
CTHN-150 5 39 73 21 13 99 185 53
CTHN-175 8 44 75 26 20 112 191 66
CTHN-200 8 47 76 30 20 119 193 76
FIGURE 6: U-TUBE, 45°
(inches) (centimeters)
Model ABCDABCD
CTHN-40
- UNAPPROVED - - UNAPPROVED -
CTHN-60 8 4 47 40 20 10 119 102
CTHN-80 8 4 54 46 20 10 137 117
CTHN-100 8 4 57 48 20 10 145 122
CTHN-125 8 4 63 53 20 10 160 135
CTHN-150 8 4 66 56 20 10 168 142
CTHN-175 8 4 69 59 20 10 175 150
CTHN-200 8 4 73 63 20 10 185 160
B
C
D
A
FIGURE 7: U-TUBE, OPPOSITE 45° REFLECTOR
(inches) (centimeters)
Model ABCDABCD
CTHN-40
- UNAPPROVED - - UNAPPROVED -
CTHN-60 8 45 45 10 20 114 114 25
CTHN-80 9 55 54 10 23 140 137 25
CTHN-100 10 56 57 10 25 142 145 25
CTHN-125 10 58 63 10 25 147 160 25
CTHN-150 10 61 66 20 25 155 168 51
CTHN-175 10 68 69 20 25 173 175 51
CTHN-200 10 71 73 20 25 180 185 51
A
C
D
B