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Technical Training Department
Ashland City, Tennessee
SBN TANK TYPE COMMERCIAL GAS WATER HEATER
SERVICE HANDBOOK
©2003
INSTALLATION CONSIDERATIONS
This portion of the handbook reviews some often overlooked installation considerations
—clearances, air supply, gas pressure requirements, and venting—taking note
of necessary installation requirements for SBN . The installation manual
covers most of these items in detail.
Clearances
A 24-inch clearance for all serviceable parts is recommended. Clearances may vary
between models. See instruction manual or the label on the heater for clearances
applicable to your specific model.
Top and Front Views of Minimum Clearances To Combustibles
A, B, and C clearances to non-combustibles is “0” inches - a 12 inch clearance to cover
remains unchanged.
Model "A" Right
Side
"B" Left Side "C" Back "D"
Ceilin
g
SBN 71-120NE, SBN- 81-154NE, SBN 81-180NE, SBN 100-199NE 2" 2" 2" 12"
SBN 100-250NE(A), SBN 100-275NE(A), SBN 85-310NE(A) 3" 3" 3" 12"
SBN 85-366NE(A) 6" 6" 6" 6"
SBN 85-390NE(A) 4" 4" 4" 4"
Minimum Clearances To Combustibles