Figure 7: U-Tube, Standard Reflector; Figure 8: U-Tube, 45; Figure 9: U-Tube, Opposite 45° Reflector - Roberts Gorden VANTAGE CTH3-80 Installation, Operation & Service Manual

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 7: U-TUBE, STANDARD REFLECTOR

FIGURE 8: U-TUBE, 45

FIGURE 9: U-TUBE, OPPOSITE 45
Model
CTH3-80
CTH3-115
CTH3-150
CTH3-200
°
Model
CTH3-80
CTH3-115
CTH3-150
CTH3-200
°
REFLECTOR
Model
CTH3-80
CTH3-115
CTH3-150
CTH3-200
(inches)
A B C
6 38 69
6 46 79
6 50 84
8 54 87
(inches)
A B C
8 8 66
8 8 78
8 8 84
8 8 85
(inches)
A B C
8 60 66
10 70 78
12 74 84
12 76 85
SECTION 3: C
LEARANCES TO
(centimeters)
D A B
37 16 97 176
43 16 117 201
47 16 127 214
51 21 138 221
(centimeters)
D A B
46 21 21 168
61 21 21 199
66 21 21 214
70 21 21 216
(centimeters)
D A B
22 21 153 168
22 26 178 199
22 31 188 214
22 31 194 216
C
OMBUSTIBLES
C D
94
110
120
130
C D
117
155
168
178
C D
56
56
56
56
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