Bradford White IGI-180R-10N - Manual (Page 11)

II - SPECIFICATIONS - COMBUSTION
Item Gas type Natural Propane
Gas consumption Minimum Btu’s 15,000 15,000
Maximum Btu’s 180,000 180,000
Injector Diameter Upper Ø.037 (.95mm) Ø.029 (.75mm)
Inches (mm) Lower Ø.062 (1.6mm) Ø.045 (1.15mm)
Main Burner B3A7-1(Lean and Rich Bunsen Burner)
Main Damper H73-115, Upper: Ø6, Lower: (Not used)
Gas Pressure Minimum supply 6" W.C. 10" W.C.
Supply/Manifold Maximum supply 10.5" W.C. 13.5" W.C.
Low Fire manifold 0.77” W.C 0.93” W.C
High Fire manifold 3.7” W.C 4.2” W.C
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