A. O. Smith FMG-40 User Manual

Residential Gas Water Heaters

EnergySaver

MANUFACTURED HOUSING
STANDARD-VENT AND DIRECT-VENT

ENERGY SAVER FEATURES

COMPLIES WITH HUD STANDARDS FOR
MANUFACTURED HOUSING INSTALLATION

Also complies with National Appliance Energy Conservation Act
(NAECA) energy-efficiency standards effective January 20, 2004.

GAS CONTROL CONVERTIBLE FOR NATURAL
AND PROPANE GAS

For flexibility to meet the varying needs of Manufactured Housing
installations.

SIDE-MOUNTED 3⁄4" COLD WATER INLET

For ease of installation when cold water supply originates below
the structure. Top-mounted 3⁄4" hot water outlet.

6-YEAR LIMITED TANK WARRANTY, 2-YEAR
LIMITED PARTS WARRANTY

For complete information, consult written warranty or A.O. Smith
Water Products Company.

DIRECT-VENT MODELS PACKAGED WITH BOTTOM INTAKE AIR VENT

To draw all combustion make-up air from outside the structure.

OPTIONAL DUCTED AIR INLET KIT FOR DIRECT-VENT MODELS

For use when water heater is installed over a basement. Provision for horizontal
air inlet ducting up to 30 feet, using Schedule 40 PVC pipe. Kit includes 45°
rodent-proof termination cap and wall collars. Kit #9002986 for 30 and 40 gallon

models. Kit #9002987 for 50-gallon models.

GREEN CHOICE™ ECO-FRIENDLY GAS BURNER

Patented design reduces NOx emissions by up to 33% and complies with Southern
California and Texas requirements.

GLASS-LINED TANK

For long-lasting protection against rust and corrosion.

ANODE ROD

Helps protect against rust and corrosion for long life.

FACTORY-INSTALLED TEMPERATURE & PRESSURE (T&P)
RELIEF VALVE

MAXIMUM HYDROSTATIC WORKING PRESSURE 150 PSI

DESIGN-CERTIFIED BY CSA INTERNATIONAL

www.hotwater.com

NOV2006R

AMGSS00106