A.O. Smith VF Series manual Versatile Multi-Venting Configurations, Commercial Gas Boilers

COMMERCIAL GAS BOILERS

Up To 88% Efficient, Hot Water Supply Boiler with Modulating Fire 4:1 Turndown

Hot Water Supply

Applications:

VW-500 through

VW-1000

Hydronic Heating

Applications:

VB-500 through

VB -1000

CATEGORY IV LISTED

PROFESSIONAL START-UP SERVICE FURNISHED

MEETS ASHRAE/IESNA 90.1-1999

LOW NOx OPERATION

■Meets or exceeds Texas and California SCAQMD Rule 1146.2 quality standards

OTHER VF™ BOILER FEATURES:

■ASME Pressure Relief Valve 125#

■Factory-Mounted Flow Switch

■Low Gas Pressure Switch

■All Bronze Factory Mounted Pump

Standard on VW hot water supply models

■Digital Inlet/Outlet Temperature Read Out

■Manual Reset Hi-Limit

WARRANTY:

■5 Year Limited Heat Exchanger Warranty on VW Models

■10 Year Limited Heat Exchanger Warranty on VB Models

VF™ BOILER APPROVED OPTIONS*

*For optional boiler equipment see VF Boiler VB and VW spec sheets.

S H O R T T R I M

Versatile Multi-Venting Configurations

■Two-pipe direct - venting vertical and /or horizontal sidewall, with all combustion makeup air drawn from outside the building

70	Equivalent Feet Exhaust	DIRECT-VENTING
70	Equivalent Feet Intake
90	Degree Elbows = 10 Feet
45	Degree Elbows = 5 Feet

Boot Tee = 5 Feet

■Standard - venting, vertical or horizontal sidewall

100 Equivalent Feet Max		SIDEWALL	CONVENTIONAL
90	Degree Elbows = 10 Feet	VENTING	VENTING
45	Degree Elbows = 5 Feet

Boot Tee = 5 Feet

Please consult latest edition of the Installation Manual for detail venting information and maximum/minimum venting distances.