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Производитель: Desa Размер: 3.52 mb Название файла: Язык инструкции:

Note: Motor will go into shell first (see Figure 8). 9. Line up rear mounting holes in shell with first hole on each side of motor mount (see Figure 8). Note: When holes are lined up, fan should be outside of shell. 10. Holding mounting screws, carefully reach through fan blades into rear of heater. Be careful not to damage fan pitch. Insert screw through motor mount and shell. With free hand, attach screw finger tight. Repeat process for other mounting hole. 11. Use 1/8" hex wrench to loosen setscrew which holds fan to motor shaft (see Figure 9, page 9). 12. Slip fan off motor shaft. 13. Clean fan using soft cloth moistened with a cleaning solvent. Top Cover Terminal Block Hole in Bracket Motor Motor Mounting Bracket Figure 7 - Removing Fan and Motor Fan Motor Mounting Bracket Figure 8 - Fan and Motor Reversed for Cleaning 14. Dry fan thoroughly. 15. Replace fan on motor shaft. Place setscrew on flat 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. 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, 1O, 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) Service Procedures Continued 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 0.9" (22.9 mm)* 125 0.5" (12.7 mm)* or 0.9" (22.9 mm)* 170 0.25" (6.4 mm) A Fan Motor * Dependin...

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