Desa BG30N, GG30NT, FG30PT, FG30NT, RG30NT, RG30P, GG30PT Open equipment shutoff valve see

Page 14

INSTALLATION

Continued

2.Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air.

3.Check all joints from gas meter for natural gas (see Figure 17) or propane/LP supply tank for propane/LP gas, to equipment shutoff valve (see Figure 18). Apply a noncorrosive leak detection ﬂuid to all joints. Bubbles forming show a leak.

4.Correct all leaks at once.

PRESSURE TESTING HEATER GAS CONNECTIONS

1.Open equipment shutoff valve (see Figure 16, page 13).

2.For natural gas open main gas valve located on or near gas meter. For propane/LP gas open propane/LP supply tank valve.

3.Make sure control knob of heater is in the OFF position.

4.Check all joints from equipment shutoff valve to thermostat gas valve (see Figure 17 or 18). Apply a noncorrosive leak detection ﬂuid to all joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light heater (see Operating Heater, starting on page 15). Check all other internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appli- ance, page 16 or 17, depending on your model heater).

8.Replace front panel.

Thermostat Gas Valve

Gas

Meter

Equipment Shutoff Valve

Figure 17 - Checking Gas Joints for

Natural Gas

Thermostat Gas Valve

Propane/LP

Supply Tank

Equipment Shutoff Valve

Figure 18 - Checking Gas Joints for

Propane/LP Gas

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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