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Versatile Multi-Venting Configurations
Hot Water Supply
Applications:
VW-500 through
VW-1000
Hydronic Heating
Applications:
VB-500 through
VB -1000
COMMERCIAL GAS BOILERS
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.
Up To 88% Efficient,
Hot Water Supply
Boiler with
Modulating Fire
4:1 Turndown
■
T
wo-pipe direc
t
- venting vertical and /or horizontal sidewall, with all
combustion makeup air drawn from outside the building
70 Equivalent Feet Exhaust
70 Equivalent Feet Intake
90 Degr
ee Elbows = 10 Feet
45 Degree Elbows = 5 Feet
Boot Tee = 5 Feet
■
Standar
d
- venting, vertical or horizontal sidewall
100 Equivalent Feet Max
90 Degr
ee Elbows = 10 Feet
45 Degree Elbows = 5 Feet
Boot Tee = 5 Feet
DIRECT-VENTING
SIDEW
ALL
CONVENTIONAL
VENTING VENTING
Please consult latest edition
of the Installation Manual for
detail venting information
and maximum/minimum
venting distances.
SHORT TRIM