Williams 4505621 Instruction Manual download pdf (Page 3)

BUILDING CODES AND SAFETY STANDARDS

THE DESIGN OF THIS FURNACE IS NOT CERTIFIED FOR USE IN MOBILE HOMES, TRAVEL

TRAILERS OR CAMPERS. THIS FURNACE MUST BE PROPERLY VENTED TO THE OUTSIDE

FOR SAFE OPERATION. DO NOT OPERATE THIS FURNACE WITHOUTAN ADEQUATE VENTING

SYSTEM.

THE DESIGN OF THIS APPLIANCE COMPLIES WITH ANSI Z21.48.

THE SECTIONS OF THIS MANUAL PERTAINING TO VENTING AND GAS PIPING PROVIDE ONLY

BASIC GUIDELINES. BE SURE THE INSTALLATION OF THE VENT AND GAS PIPING COMPLIES

WITH LOCAL CODES. IN THE ABSENCE OF LOCAL CODES, BE SURE TO COMPLY WITH THE

NATIONAL FUEL GAS CODE ANSI Z223.1.

IMPORTANT GENERAL INFORMATION

Read these instructions completely before beginning the installation and use these instructions as a guide during the installation.

Your furnace has been carefully designed and constructed. The design of this furnace has been tested according to the

standards set by the American National Standards Institute, and the design has been certified by the American Gas Association

as conforming to these standards. Care has been taken to assure that your furnace will operate safely, efficiently, and

reliably, but your furnace must be properly installed. Only a licensed or otherwise qualified gas equipment installer should

install this furnace, the vent serving this furnace, and the gas piping. Installation procedures should comply with these

instructions and the latest edition of the American National Standard National Fuel Gas Code Z223.1. You should also refer

to any local codes or ordinances which may apply. Improper installation of the furnace, vents or gas piping, can subject you

and your property to fire, explosion, or asphyxiation hazards and will void the warranty offered by Williams Furnace Co. Do

not be satisfied with an improper installation.

Do not use this furnace if any part has been under water. Immediately call a qualified service technician to inspect the furnace

and to replace any part of the control system and any gas control which has been under water.

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Williams 4505621 Instruction Manual Page 3