Dunkirk PVWB, Installation Instructions Manual

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New York City MEA Number 39-86-E Vol. IV.
The Ratings marked “Net 1=B=R Ratings” indicate the amount
of remaining heat input that can be used to heat the radiation
or terminal units. The Net 1=B=R Ratings shown are based on
an allowance of 1.15 in accordance with the factors shown on
the 1=B=R Standard as published by The Hydronics Institute.
Selection of boiler size should be based upon “Net 1=B=R
Rating” being equal to or greater than the calculated heat loss
of the building.
The manufacturer should be consulte
d before
selecting a boiler
for installations having unusual piping and pickup requirements.
These boilers must stand on a non-combustible floor. If in
Boiler Ratings and Capacities
Electronic Ignition Continuous Pilot NO. OF AGA/CGA HEATING NET I=B=R
With With SECTIONS INPUT CAPACITY RATING FLUE "A"
Vent Damper Vent Damper *MBH *MBH *MBH DIAMETER WIDTH
PWB-2D PVWB-2D 2 37.5 30 26 4‡ 8
PWB-3D PVWB-3D 3 70 57 50 5 11¼
PWB-4D PVWB-4D 4 105 85 74 6 14½
PWB-5D PVWB-5D 5 140 113 98 6 17¾
PWB-6D PVWB-6D 6 175 142 123 7 21
PWB-7D PVWB-7D 7 210 170 148 7 24¼
PWB-8D PVWB-8D 8 245 198 172 7 27½
PWB-9D PVWB-9D 9 280 226 197 7 30¾
BASIC BOILER UNIT NO. DIMENSIONS
(Inches)
NATURAL AND PROPANE GAS
GAS-FIRED HOT WATER BOILERS
* MBH = 1,000 Btuh = British Thermal Unit Per Hour
Boilers are equipped for altitudes up to 2,000 feet only
U.S.A. Only - For altitudes above 2,000 feet, ratings should be reduced at the rate of 4% for each 1,000 feet above sea level.
Canada Only - Boilers may be used at high altitude by using a certified field conversion kit, resulting in a 10% derate.
+ Heating Capacity based on D.O.E. (Department of Energy) test procedure. Add 5½” to height when vent damper is used.
‡ 2 section boilers are equipped with a 3” diameter flue collar on the draft diverter, and use a furnished 3” x 4” increaser fitting to install
the furnished 4” vent damper.
stalled on a combustible floor, use Combustible Floor Base
Number 42135-1 or 146-14-031 (2-6 section boilers) or
42135-2 or 146-14-032 (7-9 section boilers).
BOILERS FOR USE AT HIGH ALTITUDE
This boiler is factory equipped for use at altitudes of 0-2,000
feet above sea level. For use at altitudes above 2,000 feet
above sea level, the input ratings are reduced by a change in
main burner orifice size.
U.S.A. Only
- For altitudes above 2,000 feet above sea
level, input ratings should be reduced at the rate of 4% for
each 1,000 feet above sea level. Consult the
National Fuel
FIG. 1