A.O. Smith 120 trough 500 manual - page 4

BTR TANK TYPE HEATERS
SERVICE HANDBOOK
A.O. Smith Water Products Service Handbook
Irving, Texas ©2000 Training Department
3
INSTALLATION
This portion of the handbook will review some often overlooked installation
considerations, taking note of necessary installation requirements for the BTR 120
through 500 model heaters. The installation manual covers most of these items indetail.
Clearance to Combustibles Table
MODEL A B C
120 - 200 1” (2.54CM) 1” (2.54CM) 1” (2.54CM)
250 - 305 2” (5.08CM) 2” (5.08CM) 2” (5.08CM)
365 - 500 3” (7.75CM) 3” (7.75CM) 3” (7.75CM)
A 24 inch clearance for all serviceable parts is recommended. Clearances may vary
between BTR models – See instruction manual or the label on the heater, forclearances
applicable to your specific model.
CLEARANCES FROM COMBUSTIBLES