Desa SFG20NT, SPC20PT Checking GAS Connections, Test Pressures In Excess Of 1/2 Psig 3.5 kPa

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INSTALLATION

Continued

Install sediment trap in supply line as shown in Figure 11, page 10. Locate sediment trap where it is within reach for cleaning. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater may not run properly.

Install male connector and flex gas line to equipment shutoff valve through hole provided in rear surround as shown in Figure 11, page 10.

IMPORTANT: Hold the pressure regulator and connector with wrench when connecting it to gas piping and/or fittings. Do not over tighten pipe connection to regulator. The regulator body could be damaged.

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once.

WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detec- tion fluid to all joints. Bubbles forming show a leak. Correct all leaks at once.

CAUTION: For propane/LP gas, make sure external regula- tor has been installed between propane/LP supply and heater. See guidelines under Connect- ing to Gas Supply, page 9.

PRESSURE TESTING GAS SUPPLY PIPING SYSTEM

Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)

2.Cap off open end of gas pipe where equipment shutoff valve was connected.

3.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.

4.Check all joints of gas supply piping system. Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Reconnect heater and equipment shutoff valve to gas supply. Check reconnected fittings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)

1.Close equipment shutoff valve (see Figure 12).

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 or propane/LP supply tank for propane/LP gas, to equipment shutoff valve (see Figure 13 or 14, page 12). 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 12).

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 13 or 14, page 12). 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, this page). Check all other internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appli- ance, page 13).

8.Install refractory and front panel.

1. Disconnect appliance with its appliance main

gas valve (control valve) and equipment

shutoff valve from gas supply piping system.

Pressures in excess of 1/2 psig will damage

heater regulator.

Equipment Shutoff Valve

Open

Closed

Figure 12 - Equipment Shutoff Valve

116307-01B

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Contents Residential Models Garage Models What to do if YOU Smell GASTable of Contents Safety Information Unpacking Product FeaturesLocal Codes Determining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationProviding Adequate Ventilation Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors InstallationInstallation Items Check GAS TypeAttaching to wall stud Attaching to wall anchor Installing Heater to WallLocating Heater Coldest part of roomLocate hardware packet behind left side door of heater Connecting to GAS SupplyMarking Screw Locations Placing Heater On Mounting ScrewsBe upstream from heater see Figure Protects it from freezing rain or sleet30,000 Btu/Hr Models 1/2 or greater Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Checking GAS ConnectionsTest Pressures In Excess Of 1/2 Psig 3.5 kPa Operating Heater For Your Safety Read Before LightingInstalling Refractory and Front Panel Turn control knob clockwise to the OFF position Lighting InstructionsPilot Flame Pattern Manual Lighting ProcedureInspecting Heater Thermostat Control OperationCabinet Cleaning MaintenanceODS/PILOT and Burner Burner Pilot AIR InletContact local propane/LP gas company TroubleshootingObserved Problem Possible Cause Remedy Delayed ignition of burners Manifold pressure is too low Goes out when control knob is Control knob not pressedProblem could be caused by AssemblyTurn off air supply Noise when burner is litDirty or partially clogged Clean burner see Cleaning When heated, vapors from Turn heater off when usingGas leak. See Warning Technical ServiceService Publications Service Hints When Gas Pressure Is Too LowLSF30NT, VSF30NT LSF30PT, VSF30PT SpecificationsSF30NT SF30PT Parts Central AccessoriesReplacement Parts Illustrated Parts Breakdown Parts List Keep this Warranty Warranty InformationModelos Modelos Para Cochera QUÉ Hacer SI Percibe Olor a GASTabla DE Contenido Información DE Seguridad Características DEL Producto Códigos LocalesIdentificación DEL Producto DesempaqueEspacio confinado y no confinado Aire Para Combustión VentilaciónCómo Procurar LA Ventilación Adecuada Construcción inusualmente selladaAire del interior de la construcción para ventilación Aire Para VentilaciónAire del exterior para ventilación InstalaciónVerifique EL Tipo DE GAS Artículos DE InstalaciónUbicación DEL Calentador En áreas con mucho viento oColoque el calentador en los tornillos de montaje Instalación DEL Calentador EN LA ParedDoble en anclaje de pared como se muestra en la figura Colocación del calentador en los tornillos de montajeVentila apuntando hacia abajo Conexión AL Suministro DE GASGas natural Revisión DE LAS Conexiones DE GASPruebas de presiones mayores a 1/2 PSI 3.5 kPa Instale un difusor frontal como se muestra en la figura Abra la válvula de cierre del equipo consulte la figuraInstale el panel anterior y el refractario Instalación del panel anterior y el refractarioNo intente encender ningún aparato Instrucciones DE EncendidoInspección DEL Calentador Funcionamiento DELComo se muestra en la figura Inspección DELLimpieza Y Mantenimiento Entrada DE Aire AL Piloto DEL QuemadorCausa Posible Remedio Solución DE ProblemasPresione totalmente la perilla de control Problema Observado Causa Posible RemedioBaja presión del gas El termopar está dañadoSilbante cuando el quemador El problema desapareceráCierre el suministro de aire Se enciende o se apagaCuando la presión del gas de entrada sea muy baja Servicio TécnicoConsejos Para Servicio LSF30NT, VSF30NT EspecificacionesSF30NT Central DE Piezas AccesoriosPiezas DE Repuesto Clasificación Ilustrada DE Piezas Lista DE Piezas Guarde Esta Garantía Información DE Garantía
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