Desa SF20PT Connecting to GAS Supply, Marking Screw Locations, Placing Heater On Mounting Screws

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INSTALLATION

Continued

Decide which method better suits your needs. Either method will provide a secure hold for the heater.

Marking Screw Locations

WARNING: Maintain mini- mum clearances shown in Figure 4. If you can, provide greater clearances from floor and joining wall.

Mark three screw locations on wall as shown in Figure 6).

5.Insert mounting screws into wall anchors.

6.Tighten screws until screw head is 1/8" away from wall.

Figure 7 - Folding

Figure 8 - Popping

Anchor

Open Anchor Wings

 

For Thin Walls

Placing Heater On Mounting Screws

1.Locate two top vertical key slots on back end panels of heater.

2.Place heater onto mounting screws.

AdjoiningWall

7"

Min.

9"

Min.

20,000 Btu Heaters

167/8"

30,000 Btu Heaters

245/16"

Insert

Mounting 18 3/4"

Screws Min.

Vertical

Key Slots

Floor

Figure 6 - Wall Mounting Clearances

Locate hardware packet behind left side door of heater.

Attaching To Wall Stud Method For attaching heater to wall studs

1.Drill holes at marked locations using 9/64" drill bit. Holes must be level to prevent com- plications with front panel.

2.Tighten screws until screw head is 1/8" away from wall.

Attaching To Wall Anchor Method

For attaching heater to hollow walls (wall areas be- tween studs) or solid walls (concrete or masonry).

1.Drill holes at marked locations using 5/16" drill bit. Holes must be level to prevent com- plications with front panel. For solid walls (concrete or masonry), drill at least 1" deep.

2.Fold wall anchor as shown in Figure 7.

3.Insert wall anchor (wings first) into hole. Tap anchor flush to wall.

4.For thin walls (1/2" or less), insert red key into wall anchor. Push red key to “pop” open anchor wings. IMPORTANT: Do not hammer key! For thick walls (over 1/2" thick) or solid walls, do not pop open wings.

Figure 9 - Vertical Key Slots for Mounting

Heater to Wall

CONNECTING TO GAS SUPPLY

WARNING: This appliance requires a 3/8" NPT (National Pipe Thread) inlet connection to the pressure regulator.

WARNING: A qualified service personmustconnectheatertogas supply. Follow all local codes.

WARNING: For natural gas, never connect heater to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

IMPORTANT: For natural gas, check gas line pressure before connecting heater to gas line. Gas line pressure must be no greater than 10.5" of wa- ter. If gas line pressure is higher, heater regulator damage could occur.

116307-01B

www.desatech.com

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Contents Residential Models Garage Models What to do if YOU Smell GASTable of Contents Safety Information Product Features Local CodesUnpacking AIR for Combustion Ventilation Providing Adequate VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Inside Building Ventilation AIRInstallation Items InstallationCheck GAS Type Ventilation Air From OutdoorsLocating Heater Installing Heater to WallColdest part of room Attaching to wall stud Attaching to wall anchorMarking Screw Locations Connecting to GAS SupplyPlacing Heater On Mounting Screws Locate hardware packet behind left side door of heaterProtects it from freezing rain or sleet 30,000 Btu/Hr Models 1/2 or greaterBe upstream from heater see Figure Checking GAS Connections Test Pressures In Excess Of 1/2 Psig 3.5 kPaTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa For Your Safety Read Before Lighting Installing Refractory and Front PanelOperating Heater Turn control knob clockwise to the OFF position Lighting InstructionsInspecting Heater Manual Lighting ProcedureThermostat Control Operation Pilot Flame PatternODS/PILOT and Burner Cleaning MaintenanceBurner Pilot AIR Inlet CabinetTroubleshooting Observed Problem Possible Cause RemedyContact local propane/LP gas company Problem could be caused by Goes out when control knob is Control knob not pressedAssembly Delayed ignition of burners Manifold pressure is too lowDirty or partially clogged Clean burner see Cleaning Noise when burner is litWhen heated, vapors from Turn heater off when using Turn off air supplyService Publications Service Hints Technical ServiceWhen Gas Pressure Is Too Low Gas leak. See WarningSpecifications SF30NT SF30PTLSF30NT, VSF30NT LSF30PT, VSF30PT Accessories Replacement PartsParts Central 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 Identificación DEL Producto Códigos LocalesDesempaque Características DEL ProductoCómo Procurar LA Ventilación Adecuada Aire Para Combustión VentilaciónConstrucción inusualmente sellada Espacio confinado y no confinadoAire del interior de la construcción para ventilación Aire Para VentilaciónVerifique EL Tipo DE GAS InstalaciónArtículos DE Instalación Aire del exterior para ventilaciónUbicación DEL Calentador En áreas con mucho viento oDoble en anclaje de pared como se muestra en la figura Instalación DEL Calentador EN LA ParedColocación del calentador en los tornillos de montaje Coloque el calentador en los tornillos de montajeVentila apuntando hacia abajo Conexión AL Suministro DE GASRevisión DE LAS Conexiones DE GAS Pruebas de presiones mayores a 1/2 PSI 3.5 kPaGas natural Instale el panel anterior y el refractario Abra la válvula de cierre del equipo consulte la figuraInstalación del panel anterior y el refractario Instale un difusor frontal como se muestra en la figuraNo intente encender ningún aparato Instrucciones DE EncendidoInspección DEL Calentador Funcionamiento DELLimpieza Y Mantenimiento Inspección DELEntrada DE Aire AL Piloto DEL Quemador Como se muestra en la figuraCausa Posible Remedio Solución DE ProblemasBaja presión del gas Problema Observado Causa Posible RemedioEl termopar está dañado Presione totalmente la perilla de controlCierre el suministro de aire El problema desapareceráSe enciende o se apaga Silbante cuando el quemadorServicio Técnico Consejos Para ServicioCuando la presión del gas de entrada sea muy baja Especificaciones SF30NTLSF30NT, VSF30NT Accesorios Piezas DE RepuestoCentral DE Piezas Clasificación Ilustrada DE Piezas Lista DE Piezas Guarde Esta Garantía Información DE Garantía
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