Desa FAS-3B, FAS-5B Product Identification, Product Features, Local Codes, Unpacking

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OWNER’S MANUAL

PRODUCT

IDENTIFICATION

Control Knob

PRODUCT FEATURES

SAFETY DEVICE

Front Panel

Grill

Guard

Burners

Heater Cabinet

This heater has a pilot with an Oxygen Depletion Sensor Shutoff System (ODS). The ODS/pilot is a required feature for vent- free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air.

PIEZO IGNITION SYSTEM

This heater has a piezo ignitor. This system requires no matches, batteries, or other sources to light heater.

THERMOSTATIC HEAT CONTROL ON THERMOSTAT MODELS FAS-3B AND FAS-5B

These heaters have a control valve with a thermostat sensing bulb. This results in the greatest heater comfort and may result in lower gas bills.

Figure 1 - Vent-Free Natural Gas Heater (Model FA-5B Shown)

LOCAL CODES

Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of National Fuel Gas Code ANS Z223.1, also known as NFPA 54*.

*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

UNPACKING

1.Remove heater from carton.

2.Remove all protective packaging ap- plied to heater for shipment.

3.Check heater for any shipping damage. If heater is damaged, promptly inform dealer where you bought heater.

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Contents What to do if YOU Smell GAS Infrared VENT-FREE Natural GAS HeaterInfrared Natural GAS Heater Safety InformationUnpacking Product FeaturesProduct Identification Local CodesConfined and Unconfined Space Fresh AIR for Combustion and VentilationProducing Adequate Ventilation Unusually Tight ConstructionFresh AIR for Combustion Ventilation Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From Inside BuildingVentilation Air From Outdoors Check GAS Type InstallationInstallation Items Locating HeaterMethods For Attaching Mounting Bracket To Wall Installing Heater to WallMounting Bracket Removing Front Panel Of Heater Models FA-3B and FA-5BInstalling Bottom Mounting Screws Attaching Mounting Bracket To WallPlacing Heater On Mounting Bracket Typical Inlet Pipe Diameters Connecting to GAS SupplyOperating Heater For Your Safety Read Before LightingPressure Testing Gas Supply Piping System Pressure Testing Heater Gas ConnectionsTo Turn OFF GAS to Appliance Manual Lighting ProcedureLighting Instructions To Select Heating LevelThermostat Models FAS-3B and FAS-5B Inspecting Burner Cleaning and MaintenanceObserved Problem Possible Cause Remedy TroubleshootingInfrared Natural GAS Heater Top Replacement Parts SpecificationsService Hints Service Publications TechnicalFAN Kits UH1000FB and UHS1000FB AccessoriesParts Centrals Manual Shutoff Valve GA5010Burner Assembly ODS/Pilot Assembly Illustrated Parts BreakdownFA-3B KEY FA-3B Description Parts ListFA-5B KEY FA-5B Description FAS-3B ODS/Pilot Assembly Burner AssemblyKEY FAS-3B Description QTY FAS-5B KEY FAS-5B Description QTY International Warranty Information