Assessments - 2, GPA: 4
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Attach nut finger tight after inserting each screw. 5. After inserting all screws, tighten nuts firmly. Ventilation Follow the mini mum fresh, outside air ventilation requirements. If proper fresh, outside air ventilation is not provided, carbon monoxide poisoning can occur. Provide proper fresh, outside air ventilation before running heater. FRESH AIR OPENING REQUIREMENTS Square Feet Heater Size Opening 200,000 Btu/Hr 6.0 Provide a fresh air opening at least three square feet for each 100,000 Btu/Hr rating. Provide extra fresh air if more heaters are being used. Example: A 200,000 Btu/Hr heater requires one of the following: • a two-car garage door (16 foot wide opening) raised five inches • a single-car garage door (9 foot wide opening) raised eight inches • two 30-inch windows raised fifteen inches Operation Review and understand the warnings in the Safety Information Section. They are needed to safely operate this heater. Follow all local codes when using this heater. TO START HEATER 1. Follow all ventilation and safety information. 2. Fill fuel tank with Kerosene or No. 1 fuel oil. 3. Attach fuel cap. 4. Plug power cord of heater into three- prong, grounded extension cord. Extension cord must be at least six feet long. EXTENSION CORD WIRE SIZE REQUIREMENTS • 6 to 10 feet long, use 18 AWG rated cord • 11 to 100 feet long, use 16 AWG rated cord • 101 to 200 feet long, use 14 AWG rated cord 5. Plug extension cord into standard 120 volt/ 60 hertz, three-hole, grounded outlet. Adjust thermostat to desired setting. If heater does not start, thermostat setting may be too low. Turn thermostat knob to higher position to start heater. If thermostat is in HIGH position and heater still will not start, push in flame-out control reset button (See Figure 5). NOTE: A cold heater may affect the thermostat setting. This thermostat is a general- heating contol. It is not intended for precise temperature control. Adjust thermostat until heater cycles at the desired setting. Flame-out Control Reset Button Figure 5 - Flame-out Control Reset Button TO STOP HEATER Unplug extension cord from outlet. TO RESTART HEATER 1. Wait two minutes after stopping heater. 2. Repeat steps under To Start Heater. 5 Version B - For Reduction G016.J ® Dayton Operating Instructions and Parts Manual 3VG79A ® Dayton Portable Oil-Fired Heater Maintenance Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. UPPER SHELL REMOVAL 1. Remove screws along each side and top of heater using 5/16" nut-driver. These screws attach upper and lower shells together (See Figure 6). 2. Lift upper shell off. 3. Remove fan guard. Upper Shell Fan Guard Screw Figure 6 - Upper Shell Removal FAN IMPORTANT: Remove fan from motor shaft before removing motor from heater. The weight of the motor resting on the fan could damage the fan pitch. 1. Remove upper shell ( See Figur e 6). 2. Use 1/8" Allen wrench to loosen setscrew which holds fan to motor shaft. 3. Slip fan off motor shaft. 4. Clean fan using soft cloth moistened with Kerosene or solvent. 5. Dry fan thoroughly. 6. Replace fan on motor shaft. Place fan hub flush with end of motor shaft (See Figure 7). Fan Setscrew Motor Shaft Motor Figure 7 - Fan Cross Section Flush 7. Place setscrew on flat of shaft. Tighten setscrew firmly (40-50 inch-pounds). 8. Replace fan guard and upper shell. AIR OUTPUT, AIR INTAKE, AND LINT FILTERS 1. Remove upper shell ( See Figur e 6). 2. Remove filter end cover screws using 5/16" nut-driver (See Figur e 8). 3. Remove filter end cover. 4. Replace air output and lint filters. 5. Wash or replace air intake filter (See Preventative Maintenance Schedule, page 9). 6. Replace filter end cover. 7. Replace fan guard and upper shell. IMPORTANT: Do not oil filters. Fan Guard Air Intake Filter Air Output Filter Filter End Cover Lint Filter Figure 8 - Air Output, Air Intake, and Lint Filters PUMP PRESSURE ADJUSTMENT 1. Remove pressure gauge plug from filter end cover (See Figur e 9). 2. Install accessory pressure gauge (Part Number HA1180) (See Figure 10, page 7). 3. Start heater (See Operation, page 5). Allow motor to reach full speed. 4. Adjust pressure to 6.0 psi. Turn relief valve to right to increase pressure. Turn relief valve to left to decrease pressure (See Figure 10, page 7). 5. Stop heater. Remove pressure gauge. Replace pressure gauge plug in filter end cover. Relief Valve Pressure Gauge Plug Figure 9 - Pressure Gauge Plug Removal 6 Dayton Operating Instructions and Parts Manual 7 Model 3VG79A Version B - For Reduction G016.J ® Figure 10 - Adjusting Pump Pressure Pressure Gauge Side Cover Bushing, Lower Fuel Line, and Fuel Filter Figure 11 - Fuel Filter Removal Fuel Valve Fitting High Voltage. FUEL VALVE 1. Remove side cover (See Figure 11), fan guard, and upper shell (See Figure 6, page 6) screws using 5/16" nut-driver. 2. Remove fan (See Fan, page 6). 3. Pull lower fuel line off the fuel valve fitting (See Figure 12). 4. Disconnect...