Roberts Gorden DF, Инструкция по установке, эксплуатации и обслуживанию

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SECTION 3: C
LEARANCES TO
C
OMBUSTIBLES
9
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 12: Venting
(inches) (centimeters)
Model A E F A E F
DF-80 20 24 18 51 61 46
DF-100 20 24 18 51 61 46
DF-125 20 24 18 51 61 46
DF-150 20 30 18 51 77 46
DF-175/200 20 30 18 51 77 46
Radiant Tubes
Vent
Pipes
Unvented
Vented
A
E
F