Combustion Air Supply; Electrical Connections - Bradford White 30S Installation & Operating Instruction Manual

Combustion Air Supply

Installation of this water heater requires that provisions be made to supply
adequate air for combustion and ventilation. If the building is unusually tight
or if this water heater is installed in a small room, provisions for additional
makeup air must be provided. This air must be supplied through two
permanent openings located so that the lower edge of the lower opening is 6
inches below the top of the enclosure.
The minimum free air area for such openings shall not be less than one
square inch per 1000 BTU/HR of the total input rating of all appliances in that
enclosure of 100 square inches, whichever is greater. For outside air, in the
absence of local codes, refer to the National Fire Protection Standard For Oil
Burning Equipment NFPA No. 31 (latest edition).

Electrical Connections

This water heater is normally wired for 120 volts and shall be electrically
grounded in accordance with local codes, or in the absence of local codes,
with the National Electrical Code, ANSI/NFPA No. 70 (latest Edition).
If any of the original wiring must be replaced, replacement shall be with 105
degree C wire or equivalent.
Figure 1
5