Introduction - A.O. Smith VB 1500 User Manual

This design complies with the current edition of the ANSI
Z21.13 - CSA 4.9 Standard for Gas Fired Low Pressure Steam
and Hot Water Boilers.
Compliance under this standard implies that when the boiler
underwent test, the gas manifold and control assembly pro vided
on the boiler met safe lighting and other performance criteria.
Detailed installation diagrams are found in this manual. These
diagrams will serve to provide the installer a reference for the
materials and methods of piping necessary. It is essential that
all water, gas piping and wiring be installed as shown on the
diagrams. You should thoroughly read and understand this
manual before installation and/or operation of this boiler.
The factory warranty will be void if the boiler(s) have been
improperly installed or operated.
AL 29-4C® is a registered trademark of Allegheny Ludlum Corporation.
The installation must conform to all instructions contained in

INTRODUCTION

this manual and the local code authority having jurisdiction.
These should be carefully followed in all cases. Authorities
having jurisdiction should be consulted before installation
begins if there are any questions regarding compliance with
local, state or national codes.
In the absence of local codes, the installation must comply
with the current editions of the National Fuel Gas Code, ANSI
Z223.1/NFPA 54 and the National Electrical Code, NFPA 70 or
CAN/CSA-B149.1, the Natural Gas and Propane Installation
Code and CSA C22.1, the Canadian Electrical Code.
Where required by the authority having jurisdiction, the installation
must conform to the Standard for Controls and Safety Devices
from Automatically Fired Boilers, ANSI/ASME CSD-1.
All documents are available from the Canadian Standards
Association, 8501 East Pleasant Valley Road, Cleveland,
OH 44131. NFPA documents are also available from the
National Fire Protection Association, 1 Batterymarch Park,
Quincy, MA 02269.
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