National Products BW3 User Manual
NOTE:
Read the entire instruction manual before starting the installation. These instructions must be affixed on or adjacent to the boiler.
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Index
Page
SAFETY CONSIDERATIONS.....................................................................................................................................................................................2
INTRODUCTION..........................................................................................................................................................................................................3
BOILER RATINGS AND CAPACITIES .................................................................................................................................................................3-4
LOCATING THE BOILER .......................................................................................................................................................................................4-5
FRESH AIR FOR COMBUSTION...........................................................................................................................................................................5-6
INTRODUCTION..........................................................................................................................................................................................................3
BOILER RATINGS AND CAPACITIES .................................................................................................................................................................3-4
LOCATING THE BOILER .......................................................................................................................................................................................4-5
FRESH AIR FOR COMBUSTION...........................................................................................................................................................................5-6
Boiler Located in Unconfined Space.......................................................................................................................................................................5
Boiler Located in Confined Space .......................................................................................................................................................................5-6
Boiler Located in Confined Space .......................................................................................................................................................................5-6
INSTALLATION—SYSTEM PIPING .....................................................................................................................................................................6-7
For Use with Cooling Units.....................................................................................................................................................................................7
Low Design Water Temperature Systems (Below 140°F) .....................................................................................................................................7
Low Design Water Temperature Systems (Below 140°F) .....................................................................................................................................7
®
CANADIAN GAS ASSOCIATION
A PP R O VED
R
ama
ASME
®
A95465
MODEL BW3
Installation, Start-Up, and Operating Instructions
BW3
Series B
Gas-Fired
Induced-Draft Hot Water Boilers
Sizes 42,500 through 225,000
Induced-Draft Hot Water Boilers
Sizes 42,500 through 225,000
Form:
IM-BW3A-05
Cancels:
IM-BW3A-04
Printed in U.S.A.
8-99
Catalog No.
63BW-3A1