Desa TB106 Specifications, 55,000 Btu/Hr Models, 85,000 Btu/Hr Models, 125,000 Btu/Hr Models

Page 9

Service Procedures

Continued

14.Dry fan thoroughly.

15.Replace fan on motor shaft. Place set- screw on fat of shaft. See chart in Figure

10 for distance of fan hub from end of motor shaft. Tighten setscrew firmly (40-

50 inch-pounds).

16.Remove screws securing motor mount to shell.

17.Pull motor and fan from shell. Turn motor and fan around. Carefully place back in shell. Note: Fan will go into shell first.

18.Line up mounting holes in shell with holes on motor mount. Replace 4 screws through shell and motor mount.

19.Route motor wires through hole in top of shell (see Figure 7, page 8).

20.Reconnect motor wires to the same posts on terminal block as removed in step 3, page 8 (see Figure 7, page 8).

21.Replace top cover.

22.Replace fan guard.

Setscrew

Fan

Motor

Shaft

Figure 9 - Fan, Motor Shaft and Setscrew

Identification

Model	Distance A
55	0.19" (4.8 mm)
85 0.5" (12.7 mm)* or		Fan
	0.9" (22.9 mm)*
125 0.5" (12.7 mm)* or
	0.9" (22.9 mm)*	A
170	0.25" (6.4 mm)	Motor
* Depending
on Motor Shaft Motor		Hub
	Shaft	Hub

Setscrew

Specifications

All Models

•Propane/LP Gas

•Gas Supply Pressure to Regulator: Max - Bottle Pressure, Min - 25 psig (172.4 kPa)

•Gas Supply Pressure Regulator Out: 20 psig (137.9 kPa)

•Electrical Input: 120V, 60 Hz, 1Ø, 3a

•Direct Spark Ignition

•Minimum Ambient Temp. Rating: 0° F (-17.8° C)

55,000 Btu/Hr Models

•30 - 55,000 Btu/Hr (8.8 - 16.1 kW)

•Fuel Consumption:

1.4 - 2.6 pounds/hr (0.70 - 1.28 kg/hr)

•Primary Flame Control: Thermocouple operated gas valve

•Heated Air Output: 300 CFM (8.49 m3/min)

85,000 Btu/Hr Models

•50 - 85,000 Btu/Hr (14.6 - 25.0 kW)

•Fuel Consumption:

2.3- 3.9 pounds/hr (1.04 - 1.77 kg/hr)

•Primary Flame Control: Thermocouple operated gas valve

•Heated Air Output: 350 CFM (9.91 m3/min)

125,000 Btu/Hr Models

•75 - 125,000 Btu/Hr (21.9 - 36.6 kW)

•Fuel Consumption:

3.5- 5.8 pounds/hr (1.59 - 2.63 kg/hr)

•Primary Flame Control: Thermocouple operated gas valve

•Heated Air Output: 350 CFM (9.91 m3/min)

170,000 Btu/Hr Models

•125 - 170,000 Btu/Hr (36.6 - 49.8 kW)

•Fuel Consumption:

5.8- 7.9 pounds/hr (2.63 - 3.6 kg/hr)

•Primary Flame Control:

DSI Flame Rectification

•Heated Air Output: 450 CFM (12.74 m3/min)

Figure 10 - Fan Cross Section

119143-01Awww.desatech.com

Image 9

Contents PROPANE/LP Construction Forced AIR Heater Safety Information Table of ContentsProduct Identification Assembly UnpackingTheory of Operation Propane Supply Installation VentilationProvide propane/LP supply system see To Stop Heater Operation55, 85, 125 Models Only Models OnlyMaintenance StorageTo Restart Heater Cleaning fan Service ProceduresClean fan every 500 hours of operation or as needed Remove top cover55,000 Btu/Hr Models Specifications85,000 Btu/Hr Models 125,000 Btu/Hr Models55,000, 85,000 and 125,000 Btu/Hr Models Wiring DiagramsTechnical Service Replacement PartsService Publications Accessories Parts Under Warranty55,000 BTU/HR ModelS TB100, TB104, TB106 and TB110 Illustrated Parts Breakdown55,000 BTU/HR ModelS Parts List3839 Detail a Models Detail B Description 85,000 and 125,000 BTU/HR ModelS170,000 BTU/HR ModelS TB103, TB108 and TB113 No. Part No Description Qty 170,000 BTU/HR ModelSModel Serial No Date of Purchase Warranty and Repair ServiceGuarde este manual para futuras referencias Información de seguridad Tabla de contenidoInformación de Identificación del ProductoPerilla del parte anterior Ensamble DesempaqueTeoría de funcionamiento ManijaVentilación Suministro de Instalación PropanoEn modelos 55, 85, 125 solamente FuncionamientoEn modelo 170 solamente Ajuste el termostato a la posición deseadaMantenimiento AlmacenamientoPara apagar el calentador Para volver a encender el calentadorProcedimientos de Servicio Retire la cubierta superiorVentilador Soporte de montaje del motor Modelos de 55,000 BTU/h EspecificacionesModelos de 85,000 BTU/h Modelos de 125,000 BTU/hModelos de 55,000, 85,000 y 125,000 BTU/h Diagramas de cableadoServicio técnico Piezas de repuestoPublicaciones de Servicio AccesoriosModelos de 55,000 BTU/h, TB100, TB104, TB106 y TB110 Clasificación ilustrada de piezasModelos de 55,000 BTU/h Lista de piezas3839 DetalleDetail a Modelos Models Detalleetail BB Modelos de 85,000 y 125,000 BTU/h Modelos de 170,000 BTU/h, TB103, TB108 y TB113 Modelos de 170,000 BTU/h Modelo De serie Fecha de compra Garantía y servicio de reparaciónPage Information relative La sécurité Table des matièresConservez les bouteilles de propane à moins de 38 C 100 F Électrique trifilaire avec mise à la terreAssemblage Identification du Produit DéballagePoignée Pied en plastique et tubes rallongeThéorie de Fonctionnement Air pour la Air pour leCombustion Chauffage Entre -7 C 20 F et 18 C -0 F Approvisionnement En propaneDétendeur avec prise dair Dirigée vers le bas Pour arrêter lappareil de chauffage Pour allumer lappareil de chauffageModèles 55, 85 et 125 seulement Modèles 170 uniquementEntreposage EntretienPour rallumer lappareil de chauffage Procédures dentretien Écrou de 5/16 po ou un tournevis PhillipsVentilateur Support de montage du moteur Modèles à 55 000 BTU/h CaractéristiquesModèles à 85 000 BTU/h Modèles à 125 000 BTU/hModèles à 55 000, 85 000 et 125 000 BTU/h Diagrammes de câblageAccessoires Service techniquePièces de rechange Publications pour LentretienModèles TB100, TB104, TB106, TB110 à 55 000 BTU/h Vue détaillée des piècesListe des pièces Modèles à 55 000 BTU/hRechange, à la page 13 de ce manuel 3839 Detail a Models Detail B Modèles à 85 000 et 125 000 BTU/h Modèles TB103, TB108, TB113 à 170,000 BTU/h Rechange, à la page 11 de ce manuel Modèles à 170 000 BTU/hService de garantie et de réparation Modèle Numéro de série Date dachatIndustrial Drive Akron Road Box