Table Of Contents; General Information And Technical Data; Instructions To Installer - Williams 1773512 Installation Instructions And Owner's Manual

General Information and Technical Data
Instructions to Installer ............................................................................................................................... 2
Safety Rules and General Warnings.......................................................................................................... 2
Technical Data ........................................................................................................................................... 4
Installation
Wall Installation .......................................................................................................................................... 5
Installations in the State of Massachusetts ................................................................................................ 5
Outside Location for Vent Terminal ........................................................................................................... 7
Gas Conversions........................................................................................................................................ 9
Gas Supply ............................................................................................................................................... 10
Electrical Wiring Diagram ......................................................................................................................... 12
Operating Instructions ...................................................................................................
Servicing
Checking and Adjusting the Gas Manifold Pressure ............................................................................... 15
Checking, Removing and Reassembling of the Vent Air Intake System ................................................. 15
Lubrication of Moving Parts ..................................................................................................................... 15
Flame Visual Check ................................................................................................................................. 15
Annual Maintenance Requirements ......................................................................................................... 16
Programmable Timer
Overview .................................................................................................................................................. 17
Setting and Adjustment ............................................................................................................................ 18
Troubleshooting .............................................................................................................. 20
Replacement Parts .......................................................................................................... 23

General Information and Technical Data

This furnace is design certified to ANSI Z21.86-2004 / CSA 2.32-2004 Gas-Fired Gravity and Fan-Type, Direct-Vent Wall
Furnaces as a Fan-Type Direct-Vent Wall Furnace to be installed on an outside wall according to these instructions.
Any alteration of the original design, installed other than as shown in these instructions or used with a type of gas not
Installation and repair should be done by a QUALIFIED SERVICE TECHNICIAN.
The installation must conform to local codes or in the absence of local codes; the installation must conform to the National Fuel
Gas Code ANSI Z223.1/NFPA 54, Natural Gas and Propane Installation Code CSA B149.1.
Mobile (Manufactured) home installations must conform with the "Manufactured Home Construction and Safety Standard Title 24
CFR, Part 3280" or, when such a standard is not applicable, the Standard for Manufactured Home Installations, ANSI A 225.1
NFPA/501A, Mobile Home Standard, CAN/CSA Z240 MH Series, in Canada. Installer must leave this instruction manual with
the home owner after installation. Installer should show the home owner how to start and operate furnace and thermostat.
Installer must provide a 1/8-inch NPT plugged tapping for test gauge connection immediately upstream of the gas supply
connection of the furnace.
During initial firing of the furnace, residual manufacturing grease will bake out and smoke will occur which is not a health danger.
To prevent nuisance and operation of fire alarms, ventilate the room for the first two hours of operation.
WARNING: Any change to this furnace or its controls can be dangerous. This is a heating appliance and any
panel, door or guard removed for servicing this furnace must be replaced prior to operating the furnace.

Table of Contents

shown on the rating plate is not permitted.

Instructions to Installer

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