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Desa R110M3, Owner'S Manual

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Desa R110M3 Owner'S Manual Download Page 15

15

101697

Fuel Filter

1. Remove side cover screws using

5/16" nut-driver.

2. Remove side cover.
3. Pull upper fuel line off fuel filter

neck.

4. Carefully pry bushing, fuel

filter, and lower fuel line
(110,000 and 150,000 BTU/Hr
models only) out of fuel tank.

5. Wash fuel filter with clean fuel

and replace in tank.

6. Attach upper fuel line to fuel

filter neck.

7. Replace side cover.

Fuel Filter

Figure 19 - Fuel Filter Removal,
110,000 and 150,000 BTU/Hr Models

Side Cover

Upper Fuel Line

Figure 18 - Fuel Filter Removal,
70,000 BTU/Hr Model

Upper Fuel Line

Side Cover

Fuel Filter, Bushing,
and Lower Fuel Line

Spark Plug
Wire

Burner
Head

Figure 21 - Spark Plug Gap

 .085"

Gap

Bend Here
to Adjust
Gap

Figure 20 - Spark Plug Removal

Spark
Plug

.070" Thick Flat Washer

Spark Plug

1. Remove upper shell

(see page 13).

2. Remove fan (see page 13).
3. Remove spark plug wire

from spark plug.

4. Remove spark plug from

burner head using 13/16"
open-end wrench.

5. Clean and regap spark plug

electrodes to .085" gap.

6. Install spark plug in burner

head.

7. Attach spark plug wire to

spark plug.

8. Replace fan (see page 13).
9. Replace fan guard and

upper shell.

Summary of Contents for R110M3

Page 1: ...ore assembling starting or servicing heater Improper use of heater can cause serious injury Keep this manual for future reference Heater Sizes 70 000 110 000 150 000 BTU Hr Featuring Built In Thermostat with LCD Display PORTABLE FORCED AIR HEATERS OWNER S MANUAL ...

Page 2: ...rying to assemble operate or service this heater Improper use of this heater can cause serious injury or death from burns fire explosion electrical shock and carbon monoxide poisoning Carbon Monoxide Poisoning Early signs of carbon monoxide poisoning resemble the flu with headaches dizziness and or nausea If you have these signs the heater may not be working properly Get fresh air at once Have hea...

Page 3: ...eater where gasoline paint thinner or other highly flammable vapors are present Never use heater in areas with high dust content Minimum heater clearances from combustibles Outlet 8 Ft Sides 4 Ft Top 4 Ft Rear 4 Ft Heaters used in the vicinity of tarpaulins canvas or similar enclosure materials shall be located a safe distance from such materials The recom mended minimum safe distance is 10 feet I...

Page 4: ...splay Figure 1 70 000 BTU Hr Model Air Filter End Cover Fuel Cap Fuel Tank Power Cord Lower Shell Side Cover Figure 2 110 00 and 150 000 BTU Hr Models Upper Shell Fuel Cap Power Cord Fan Guard Hot Air Outlet Fuel Tank OFF Button ON Reset Button Flame Control Display see Figure 3 below Flame Control Display see Figure 3 below ...

Page 5: ... wheels Line up holes on fuel tank flange with holes on wheel support frame 4 Place front handle and rear handle if provided on top of fuel tank flange Insert screws through handle s fuel tank flange and wheel support frame Attach nut finger tight after each screw is inserted 5 After all screws are inserted tighten nuts firmly 1 Remove all packing items applied to heater for shipment 2 Remove all ...

Page 6: ...WAY PFA OV 003 Air For Fuel System Air For Combustion And Heating Fuel Combustion Chamber Air Intake Filter Clean Heated Air Out Cool Air In Air Output Filter Fuel Tank Figure 5 Cross Section Operational View Burner Head Spark Plug Motor Fan Nozzle Air Pump Air Line To Burner Fuel Filter Ignition System Flame Control WARNING FUELS Use only kerosene or No 1 fuel oil to avoid risk of fire or explosi...

Page 7: ... 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 Exten sion 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 stan...

Page 8: ...rd 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 Heater will display ambient temperature and OFF see Figure 6 page 7 If not check status of display and refer to Troublesho...

Page 9: ... flash the current thermostat setting 2 Press and hold button to increase thermostat setting or button to decrease thermostat setting Display will automatically advance to next screen 4 seconds after the last adjustment 3 Display alternates between th and the temperature selected Heater has accepted the new thermostat setting Press button to activate the new thermostat setting and start heater ope...

Page 10: ... during next heating season Using old fuel could damage heater WARNING PREVENTATIVE MAINTENANCE SCHEDULE Item How Often How To Fuel tank Flush every 150 200 hours See Storage above of operation or as needed Air output and Replace every 500 hours of See Air Output Air Intake lint filters operation or once a year and Lint Filters page 14 Air intake Wash and dry with soap and See Air Output Air Intak...

Page 11: ...ng Pump regulator blocked Loose fan setscrew Defective nozzle Wrong pump pressure Heater inlet blocked Dirty fan Defective nozzle TROUBLE SHOOTING WARNING Never service heater while it is plugged in operating or hot Severe burns and electrical shock can occur Display shows C7 fuel rich Display shows C6 sudden overfire Out of fuel Wrong pump pressure Dirty fuel or water in fuel tank Carbon deposits...

Page 12: ...eater should be 105 to 132 VAC Correct wiring or replace photocell Binding pump rotor Voltage to heater less than 85 VAC Voltage to heater over 132 VAC Shorted photocell wires or defective photocell Display shows no fuel Display shows LO volts Display shows HI volts Display shows C6 Call DESA International s Technical Service Department at 1 800 323 5190 if you have any questions on trouble shooti...

Page 13: ...hell Upper Shell Fan Guard Fan Setscrew Motor Shaft Motor Flush Figure 13 Fan Cross Section 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 above 2 Use 1 8 allen wrench to loosen set screw which holds fan to motor shaft 3 Slip fan off motor shaft 4 Clean fan using soft cloth m...

Page 14: ...000 and 150 000 BTU Hr Models Air Output Filter Lint Filter Air Intake Filter Filter End Cover Fan Guard Pump Pressure Adjustment 1 Remove pressure gauge plug from filter end cover 2 Install accessory pressure gauge part number HA1180 3 Start heater see Operation page 7 Allow motor to reach full speed 4 Adjust pressure Turn relief valve to right to increase pressure Turn relief valve to left to de...

Page 15: ... Cover Upper Fuel Line Figure 18 Fuel Filter Removal 70 000 BTU Hr Model Upper Fuel Line Side Cover Fuel Filter Bushing and Lower Fuel Line Spark Plug Wire Burner Head Figure 21 Spark Plug Gap 085 Gap Bend Here to Adjust Gap Figure 20 Spark Plug Removal Spark Plug 070 Thick Flat Washer Spark Plug 1 Remove upper shell see page 13 2 Remove fan see page 13 3 Remove spark plug wire from spark plug 4 R...

Page 16: ... compressed air through face of nozzle This will free any dirt in nozzle area 10 Inspect nozzle seal for damage Lubricate nozzle seal with kerosene before reassembly 11 Replace nozzle into burner head and tighten firmly 80 110 inch pounds 12 Attach burner head to combus tion chamber 13 Install spark plug in burner head 14 Attach spark plug wire to spark plug 15 Attach fuel and airline hoses to bur...

Page 17: ...rd and upper shell 12 Adjust pump pressure see page 14 Note If rotor is still binding proceed as follows 13 Perform steps 1 through 6 above 14 Place fine grade sandpaper 600 grit on flat surface Sand rotor lightly in figure 8 motion four times see Figure 27 15 Reinstall insert and rotor 16 Perform steps 10 through 12 above 50 ROTOR PFA P 056 Pump Plate Blade Air Intake Filter Filter End Cover Fan ...

Page 18: ...V 60 Hz Same All Models Amperage Normal Run 2 5 4 5 4 5 Hot Air Output CFM 250 500 550 SPECIFICATIONS WIRING DIAGRAM Figure 28 Wiring Diagram Blue Green Photocell Power Plug 120V 60Hz Spark Plug Reset Button Blue White Red Green Motor Connect to Chasis Ground White Black Power Cord White Photocell Blue Photocell Blue Motor Common White Motor Main Red Power Cord Black Motor Start Black Flame Contro...

Page 19: ...s from your nearest dealer or service center If they can not supply these accessories or parts either contact your nearest Parts Central or DESA International Parts Centrals are listed in the Authorized Service Center booklet supplied with heater DESA International P O Box 90004 Bowling Green KY 42102 9004 1 800 972 7879 Parts Department ACCESSORIES AIR GAUGE KIT HA1180 For all models Special tool...

Page 20: ...er when proof of purchase is provided This warranty covers only the cost of parts and labor required to restore the product to proper operating condition Transportation and incidental costs associ ated with warranty repairs are not reimbursable under this warranty Warranty service is available only through authorized dealers and service centers This warranty does not cover defects resulting from m...

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