Desa LSL18NT, LSL18PT, SL18NT, SL18PT, VSL18NT, VSL18PT Connecting to GAS Supply

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INSTALLATION

Continued

6.Insert mounting screws through bracket and into wall anchors.

7.Tighten screws until mounting bracket is ﬁrmly fastened to wall.

Placing Heater On Mounting Bracket

1.Locate two horizontal slots on back panel of heater.

2.Place heater onto mounting bracket. Slide horizontal slots onto stand-out tabs on mount- ing bracket.

Horizontal Slots

Stand-Out Tab	Mounting Bracket
	(attached to wall)
Figure 13 - Mounting Heater Onto
Mounting Bracket
Installing Bottom Mounting Screws

1.Locate two bottom mounting holes. These holes are near bottom on back panel of heater (see Figure 14).

2.Mark screw locations on wall.

3.Remove heater from mounting bracket.

4.If installing bottom mounting screws into hollow or solid wall, install wall anchors. Follow steps 1 through 4 under Attaching To Wall Anchor Method, page 10.

If installing bottom mounting screw into wall stud, drill holes at marked locations using 9/64" drill bit.

5.Replace heater onto mounting bracket.

6.Place spacers between bottom mounting holes and wall anchor or drilled hole.

7.Hold spacer in place with one hand. With other hand, insert mounting screw through bottom mounting hole and spacer. Place tip of screw in opening of wall anchor or drilled hole.

8.Tighten both screws until heater is ﬁrmly secured to wall. Do not over tighten.

Note: Do not replace front panel at this time. Replace front panel after making gas connec-

tions and checking for leaks.

Front View

Heater

Wall

Spacer

Side View

Figure 14 - Installing Bottom Mounting

Screws

CONNECTING TO GAS SUPPLY

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

WARNING:Aqualiﬁed 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.

CAUTION: For propane/LP gas, never connect heater di- rectly to the propane/LP supply. This heater requires an external regulator (not supplied). Install theexternalregulatorbetweenthe heater and propane/LP supply.

116292-01D

www.desatech.com

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Contents What to do if YOU Smell GAS Table of Contents Safety Information Unpacking Product FeaturesLocal Codes Product IdentificationUnusually Tight Construction AIR for Combustion VentilationProviding Adequate Ventilation Following are excerpts from National FuelDetermining if You Have a Conﬁned or Unconﬁned Space Determining FRESH-AIR Flow for Heater LocationVentilation Air From Inside Building InstallationVentilation AIR Check GAS TypeRemoving Front Panel of Heater Installation ItemsInstalling Ignitor Installing Glass PanelThis heater is designed to be mounted on a wall Locating HeaterInstalling Heater to Wall Placing Heater On Mounting Bracket Connecting to GAS SupplyInstalling Bottom Mounting Screws Checking GAS Connections Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Test Pressures In Excess Of 1/2 Psig 3.5 kPaExtension Cord Connecting to Electrical SupplyFor Your Safety Read Before Lighting Operating HeaterShutting Off Heater Lighting InstructionsTo Turn OFF GAS To Appliance Thermostat Control OperationPilot Flame Pattern Manual Lighting ProcedureInspecting Heater Burner Flame PatternCabinet Cleaning MaintenanceODS/PILOT and Burner Burner Pilot AIR InletObserved Problem Possible Cause Remedy TroubleshootingODS/pilot lights but flame Goes out when control knob is Control knob not pressedDelayed ignition of burner Manifold pressure is too low Burner oriﬁce is clogged Clean burner see CleaningAir passageways on heater Walls or furniture Cleaners, etc. may turn intoNo power to electric outlet 60Hz outlet Slight smoke or odor duringMent above LSL18NT, SL18NT and VSL18NT LSL18PT, SL18PT and VSL18PT SpecificationsWiring Diagrams For purposes of input adjustmentService Publications Service Hints AccessoriesTechnical Service Replacement PartsModels LSL18NT, LSL18PT, SL18NT, SL18PT, VSL18NT and VSL18PT Illustrated Parts BreakdownParts List Parts Centrals 116292-01D Keep this Warranty Warranty InformationQUÉ Hacer SI Percibe Olor a GAS Tabla DE Contenido Información DE Seguridad Características DEL Producto Información DECódigos Locales DesempaqueEspacio confinado y no confinado Aire Para Combustión VentilaciónCómo Proveer 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 Instalación del panel de vidrio Artículos DE InstalaciónDesmontaje DEL Panel Anterior DEL Calentador Instalación DEL EncendedorUbicación DEL Calentador Corrientes de aire fuertesDoble el anclaje de pared como se muestra en la figura Instalación DEL Calentador EN LA ParedSoporte de montaje Inferiores Conexión AL Suministro DE GASColocación del calentador en el soporte de montaje Instalación de los tornillos de montajeAdecuado al calentador. Si la tubería Permita el paso del volumen de gasRevisión DE LAS Conexiones DE GAS Lo suficientemente grande para queRepare todas las fugas inmediatamente Cierre del equipoRegule la presión del sistema de tubería de Usando aire comprimidoPara SU SEGURIDAD, LEA Esto Antes DE Encenderlo Funcionamiento DEL CalentadorConexión a LA Alimentación Eléctrica Cable DE ExtensiónApague el piloto Funcionamiento DELInstrucciones DE Encendido Procedimiento DE Funcionamiento DELPatrón DE LA Llama DEL CalentadorGabinete Limpieza Y MantenimientoPiloto CON ODS Y Quemador Entrada DE Aire AL Piloto DEL QuemadorReemplace el regulador de gas Solución DE ProblemasProblema Observado Causa Posible Remedio La posición del regulador de gas no es la correctaCausa Posible Remedio Los conductos de aire en el El problema desapareceráHay aire en la línea de gas Hasta que se elimine el aire Línea de gasCia anterior LSL18PT, SL18PT y VSL18PT Diagramas DE CableadoEspecificaciones LSL18NT, SL18NT y VSL18NTPiezas DE Repuesto AccesoriosServicio Técnico Publicaciones DE ServicioModelos LSL18NT, LSL18PT, SL18NT, SL18PT, VSL18NT Y VSL18PT Clasificación Ilustrada DE PiezasLista DE Piezas Centrales DE Piezas Laporte’s Parts & Service 2444 N th StreetNotas Guarde Esta Garantía Información DE Garantía