Desa 125,000 Btu/Hr Owner's Manual

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Desa 125,000 Btu/Hr Owner's Manual Manual pdf 9 page image

10848199For more information, visit www.desatech.comFor more information, visit www.desatech.com21SERVICE PROCEDURESWARNING: To avoid risk of burn and electricalshock, never attempt to service heater while it isplugged in, operating, or hot.Figure 6 - Upper Shell Removal (Variable Output Model Shown)Upper ShellUPPER SHELL REMOVAL1. Remove screws along each side of heater using phillips screw-driver. These screws attach upper and lower shells together.See Figure 6.2. Lift upper shell off.3. Remove fan guard.ScrewFANIMPORTANT: Remove fan from motor shaft before removingmotor from heater. The weight of the motor resting on the fan coulddamage the fan pitch (see Figure 7).1. Remove upper shell (see Figure 6).2. Use 1/8" allen wrench to loosen setscrew which holds fan tomotor shaft.3. Slip fan off motor shaft.4. Clean fan using a soft cloth moistened with kerosene or solvent.5. Dry fan thoroughly.6. Replace fan on motor shaft. Place fan hub flush with end ofmotor shaft (see Figure 8).7. Place setscrew on flat of shaft. Tighten setscrew firmly (40-50inch-pounds/4.5-5.6 n-m).8. Replace upper shell.AIR OUTPUT, AIR INTAKE AND LINT FILTERS1. Remove upper shell (see Figure 6).2. Remove filter end cover screws using 5/16" nut-driver (seeFigure 9).3. Remove filter end cover.4. Replace air output and lint filters.5. Wash or replace air intake filter (see Preventative MaintenanceSchedule, page 7).6. Replace filter end cover.7. Replace upper shell.IMPORTANT: Do not oil filters.MotorShaftSetscrewFigure 7 - Fan, Motor Shaft,and Setscrew LocationMotorShaftFanSetscrewFigure 8 - Fan Cross SectionFanFlushMotorFigure 9 - Air Output, Air Intake, and Lint FiltersAir IntakeFilter Filter EndCoverLint FilterAir Output FilterSERVICE PROCEDURES