Desa GG30NT, FG30PT, FG30NT, RG30NT, RG30P, GG30PT, BG30NT, BG30PT Table of Contents

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WARNING: Improper installation, adjustment, altera- tion, service or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult a qualiﬁed installer, service agency or the gas supplier.

WARNING: This is an unvented gas-ﬁred heater. It uses air (oxygen) from the room in which it is installed. Provi- sions for adequate combustion and ventilation air must be provided. Refer to Air for Combustion and Ventilation section on page 5 of this manual.

This appliance may be installed in an aftermarket,* per- manently located, manufactured (mobile) home, where not prohibited by local codes.

This appliance is only for use with the type of gas indi- cated on the rating plate. This appliance is not convert- ible for use with other gases.

*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

State of Massachusetts: The installation must be made by a licensed plumber or gas ﬁtter in the Commonwealth of Massachusetts.

Sellers of unvented propane or natural gas-ﬁred supplemental room heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit.

Vent-free gas products are prohibited for bedroom and bathroom installation in the Common- wealth of Massachusetts.

TABLE OF CONTENTS


Safety Information	3	Troubleshooting		20
Local Codes	4	Speciﬁcations		24
Product Identiﬁcation	4	Service Hints		25
Unpacking	4	Technical Service		25
Product Features	4	Service Publications		25
Air For Combustion And Ventilation	5	Replacement Parts		25
Installation	7	Illustrated Parts Breakdown and Parts List		26
Operating Heater	15	Accessories		30
Inspecting Heater	18	Parts Centrals		31
Cleaning and Maintenance	19	Warranty Information	Back Cover

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Contents What to do if YOU Smell GAS Table of Contents Safety Information Poisoning may lead to deathUnpacking Product FeaturesLocal Codes Following are excerpts from National Fuel AIR for Combustion VentilationProviding Adequate Ventilation Unusually Tight ConstructionDetermining FRESH-AIR Flow for Heater Location Determining if You Have a Conﬁned or Unconﬁned SpaceCheck GAS Type InstallationVentilation AIR Ventilation Air From Inside BuildingInstallation Items Locating HeaterMounting Bracket Installing Heater to WallThermostat Sensing Bulb Thermostat Models Only Removing Front Panel Of HeaterAttaching To Wall Anchor Method Placing Heater On Mounting BracketInstalling Bottom Mounting Screws Installing Bottom Mounting ScrewsConnecting to GAS Supply Typical Inlet Pipe DiameterPsig 3.5 kPa Checking GAS ConnectionsTest Pressures Equal To or Less Than EquipmentOpen equipment shutoff valve see , Make sure control knob of heater is in the OFF positionLighting Instructions Manual Control Models For Your Safety Read Before LightingOperating Heater Shutting Off Heater Manual Lighting ProcedureTo Turn OFF GAS To Appliance Shutting Off Burner Only pilot stays litThermostat Control Operation Burner Flame Pattern Inspecting HeaterPilot Flame Pattern Check pilot ﬂame pattern and burner ﬂame pat- tern oftenBurner Pilot AIR Inlet Cleaning MaintenanceODS/PILOT and Burner CabinetTroubleshooting Observed Problem Possible Cause RemedyDelayed ignition of burner Manifold pressure is too low Out when control knob is re Control knob not pressedSafety interlock system has Burner oriﬁce is clogged Clean burner see CleaningTurning control knob to Or shut off Qualiﬁed service personOperation Processes Hours of operation Air passageways on heaterGas leak. See Warning Statement aboveBG30P, FG30P, GG30P, RG30P, GMG30P SpecificationsBG30N, FG30N, GG30N, RG30N, GMG30N Service Publications Replacement Parts Service HintsTechnical Service Parts Under WarrantyIllustrated Parts Breakdown Parts List NJF 8CIllustrated Parts Breakdown NJF 8C FAN Kits GA3250T AccessoriesEquipment Shutoff Valve GA5010 For all models. Equipment shutoff valve with 1/8 NPT tapParts Centrals Limited Warranty VENT-FREE Residential GAS Heaters Warranty InformationKeep this Warranty