manualshive.com logo in svg

Desa 35,000 BTU/Hr Models, Owner'S Manual

Share
Download
Desa 35,000 BTU/Hr Models Owner'S Manual Download Page 10

10

102437

11. Tighten spark plug with spark plug

mounting nut.

12. Release hex-body of spark plug

from vise.

13. Replace burner strap onto combus-

tion chamber.

14. Attach spark plug wire to spark

plug.

15. Attach fuel and air line hoses to

nozzle assembly.

16. Replace fan (see page 9).
17. Replace fan guard and upper shell.

45

°

Burner
Strap

Figure 12- Spark Plug Rotation

Figure 13 - Removing Air and Fuel Line Hoses

Fuel Line Hose

Nozzle
Assembly

Combustion
Chamber

Air Line Hose

Nozzle
Assembly

Burner
Strap

Figure 14 - Removing Nozzle Assembly

Nozzle

Nozzle
Face

Nozzle
Adapter

Air Line
Fitting

Fuel Line
Fitting

Nozzle
Seal

Figure 15 - Nozzle and Nozzle Adapter

Nozzle

1. Remove upper shell (see page 9).
2. Remove fan (see page 9).
3. Remove fuel and air line hoses

from nozzle assembly.

4. Turn nozzle assembly 1/4 turn to

left and pull toward motor to
remove.

5. Place plastic hex-body into vise

and lightly tighten.

6. Carefully remove nozzle from the

nozzle adapter using 5/8" socket
wrench.

7. Blow compressed air through face

of nozzle. This will free any dirt in
nozzle area.

8. Inspect nozzle seal for damage.
9. Replace nozzle into nozzle adapter

until nozzle seats. Tighten 1/3 turn
more using 5/8" socket wrench
(40-45 inch-pounds).

10. Attach nozzle assembly to burner

strap.

11. Attach fuel and airline hoses to

nozzle assembly.

12. Replace fan (see page 9).
13. Replace fan guard and upper shell.

Summary of Contents for 35,000 BTU/Hr Models

Page 1: ...derstand this manual before assembling starting or servicing heater Improper use of heater can cause serious injury Keep this manual for future reference PORTABLE FORCED AIR HEATERS OWNER S MANUAL Heater Sizes 35 000 50 000 55 000 Btu Hr ...

Page 2: ...before trying 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 ...

Page 3: ...ater where gasoline paint thinner or other highly flammable vapors are present Follow all local ordinances and codes when using heater Heaters used in the vicinity of tarpaulins canvas or similar enclosure materials shall be located a safe distance from such materials The recommended mini mum safe distance is 10 feet It is further recommended that these enclosure materials be of a fire retardant n...

Page 4: ... System This system causes the heater to shut down if the flame goes out Fuel Filter 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 2 Cross Section Operational View Burner Head Spark Plug Motor Fan Electronic Ignitor Air Line To Burner Nozzle Air Pump PRODUCT IDENTIFICATION Lower Shell...

Page 5: ...r ventilation before running heater Provide at least a three square foot opening of fresh outside air for each 100 000 Btu Hr rating Provide extra fresh air if more heaters are being used Example A 55 000 Btu Hr heater requires one of the following a two car garage door 16 feet wide opening raised two inches a single car garage door 9 feet wide opening raised three inches two windows 30 inches wid...

Page 6: ... sure all fuel is removed 2 Replace drain plug if provided 3 If any debris is noted in old fuel add 1 or 2 quarts of clean kerosene to tank stir and drain again This will prevent excess debris from clogging filters during future use 4 Replace fuel cap or drain plug Properly dispose of old and dirty fuel Check with local automotive service stations that recycle oil 5 If storing store heater in dry ...

Page 7: ... 10 See Air Output Air Intake and Lint Filters page 9 See Fuel Filter page 10 See Nozzle page 11 Clean photocell lens Replace flame out control OBSERVED FAULT POSSIBLE CAUSE REMEDY Heater will not ignite but motor runs for a short period of time Wrong pump pressure Carbon deposits on spark plug and or improper gap Dirty fuel filter Dirt in nozzle Water in fuel tank Electronic ignitor not grounded ...

Page 8: ... upper shell IMPORTANT Do not oil filters Fan Guard Upper Shell Figure 4 Upper Shell Removal Fan Setscrew Motor Shaft Motor Figure 6 Air Output Air Intake and Lint Filters 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 ho...

Page 9: ... bushing and fuel filter 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 Air Line Hose Burner Strap Spark Plug Wire Nozzle Assembly Fuel Line Hose Spark Plug Spark Plug Mounting Nut Combustion Chamber Bend Here to Adjust Gap 055 Gap Continued Figure 10 Spark Plug Removal Figure 11 Spark Plug Gap Spark Plug 1 ...

Page 10: ... Fuel Line Fitting Nozzle Seal Figure 15 Nozzle and Nozzle Adapter Nozzle 1 Remove upper shell see page 9 2 Remove fan see page 9 3 Remove fuel and air line hoses from nozzle assembly 4 Turn nozzle assembly 1 4 turn to left and pull toward motor to remove 5 Place plastic hex body into vise and lightly tighten 6 Carefully remove nozzle from the nozzle adapter using 5 8 socket wrench 7 Blow compress...

Page 11: ...uard and upper shell 12 Adjust pump pressure see page 10 Note If rotor is still binding pro ceed as follows 13 Perform steps 1 through 6 see above 14 Place fine grade sandpaper 600 grit on flat surface Sand rotor lightly in figure 8 mo tion four times see Figure 18 15 Reinstall insert and rotor 16 Perform steps 10 through 12 above Figure 18 Sanding Rotor Sandpaper Figure 17 Gap Adjusting Screw Loc...

Page 12: ...er was malfunctioning purchase date Usually we will ask you to return the defective part to the factory Parts Not Under Warranty Contact authorized dealers of this product If they cannot supply original replace ment part s call DESA International s Parts Department at 1 800 972 7879 for referral information When calling DESA International have ready model number of your heater the replacement part...

Page 13: ...al or DESA International for referral information Parts Centrals are listed in the Autho rized Service Center booklet supplied with heater DESA International P O Box 90004 Bowling Green KY 42102 9004 1 800 972 7879 Parts Department AIR GAUGE KIT HA1180 Special tool to check pump pressure A 008 HEAVY DUTY WHEELS AND HANDLE KIT HA1202 For heavy duty applica tions Makes your heater even more portable...

Page 14: ...nd Pump Assembly 12 11 12 18 12 17 12 16 12 15 12 14 12 13 12 12 12 10 12 1 12 2 12 3 12 4 12 5 12 6 12 7 12 8 12 9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 9 1 9 2 9 3 9 4 9 5 17 18 19 20 21 22 23 24 25 26 27 30 31 32 33 36 37 38 39 28 29 34 35 40 ...

Page 15: ...10 16 x 3 4 2 4 100647 01 Screw 10 16 x 1 2 6 5 098512 40 Combustion Chamber 35 model 1 098512 32 Combustion Chamber 50 55 models 1 6 M10908 2 Screw 6 32 x 3 8 2 7 M16660 Photocell Bracket 1 8 HA3019 Photocell Assembly 1 9 Burner Head Assembly 1 9 1 HA3006 Nozzle 35 model 1 HA3021 Nozzle 50 55 models 1 9 2 HA3013 Spark Plug 1 9 3 079980 01 Nozzle Adapter 1 9 4 097124 01 Bracket 1 9 5 M29824 Nut 14...

Page 16: ...ational warrants this product and any parts thereof to be free from defects in materials and workmanship for one 1 year from the date of first purchase when operated and maintained in accordance withinstructions Thiswarrantyisextendedonlytothe original retail purchaser when proof of purchase is provided This warranty covers only the cost of parts and labor required to restore the product to proper...

Reviews:

No comments

Brands by name

Popular brands

Load more brands