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HDT Camfire CV125CG, Operation Manual

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HDT Camfire CV125CG Operation Manual Download Page 34

 

35 

HEATER INTERNAL EXPLODED VIEW 

 

Index 

P/N 

Description 

Quantity 

 

 

 

 

1. 

CAH-115 (D) 

Upper Shell 

1 

2. 

CAH-111 

Combustion Chamber 

1 

3. 

CAH-112-2 

Photo Cell 

1 

4. 

CAH-112-1 (B) 

Bracket, Photo Cell 

1 

 

CAH-141 

Screw 

2 

5. 

B-200 

Burner Head Assembly 

1 

6. 

CAH-110 

Air Line 

1 

7. 

CAH-113 

Fan 

1 

8. 

M-100 (D) 

Motor and Pump Assembly 

1 

9. 

CAH-104 (D) 

Lower Shell 

1 

10. 

CAH-104-1 

Nut Clip 

14 

11. 

CAH-105 

Grommet (Small) 

2 

12. 

CV-106 (D) 

Bracket, Motor 

1 

13. 

CAH-114 (D) 

Relay 

1 

14. 

CAH-102-2 (B) 

Bushing 

1 

15. 

CAH-107-1 

Transformer Assembly 

1 

 

CAH-142 

Screw 

2 

16. 

CAH-108-1 (E) 

Fuel Line Assembly 

1 

17. 

CAH-109-3 

Electrical Conduit Assembly 

1 

18. 

CAH-109-1 

Clamp, Conduit 

2 

19. 

CV-118-1 

Safety Control Assembly 

1 

20. 

CV-119-1 

Distribution Bar 

1 

21. 

CV-133-1 

Power Cord Assembly 

1 

22. 

CV-133-2 

Strain Relief Bushing 

1 

23. 

CV-102 (E) 

Fuel Tank 

1 

24. 

CV-102-1 

Fuel Tank Bracket 

1 

  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 

Summary of Contents for Camfire CV125CG

Page 1: ... to due so could cause severe injury or death WARNING FIRE EXPLOSION CARBON MONOXIDE POISONING Improper adjustment of the air pump can over fire the heater and as a result compromise the heat exchanger which can cause serious bodily injury due to hazards of fire and explosion carbon monoxide poisoning WARNING FIRE EXPLOSION Use only Kerosene Diesel or Number 1 Fuel Oil or JP8 can be used for extre...

Page 2: ...gged in WARNING HIGH VOLTAGE The ignition transformer develops 10 000 volts Serious injury or death may occur if personnel come in contact with high voltage lead WARNING FIRE EXPLOSION Do not operate heater without output duct P N CAH 1015 properly installed Ensure hot air outlet is at least 1 5 meters from combustible materials Ensure ducts are free from obstructions and sharp bends WARNING HOT S...

Page 3: ...4 ...

Page 4: ... Burner removal Cleaning Replacement 15 H Post Maintenance Assembly 15 15 SECTION 4 TROUBLE SHOOTING 16 A General 16 B Examination 16 C Test Firing 16 D Trouble Shooting 16 TROUBLE SHOOTING CHART 17 20 SECTION 5 SERVICE AND REPAIR 21 A General 21 B Special Tools Equipment and Supplies 21 C Thermostat Accessory 21 D Transformer 21 E Checking the Motor Starting Circuits 22 24 F Fan Service 25 G Fuel...

Page 5: ...age 1 Schematic of Operations 8 2 Maintenance Points 12 3 Air Filters 13 4 Spark Plug 14 5 Cleaning the Nozzle 15 6 Fabricated Test Probe 23 7 Wiring Diagram 24 8 Fan Location 25 9 Clearance of Rotor 27 10 Air Pump Pressure Adjustment 27 ...

Page 6: ...e CFM Approximate 600 Other Ratings Current Running 4 0 Amps Voltage 120 VAC Frequency 60 Hz Air Pump Pressure 5 0 PSI Fuel Nozzle Meter Size 0 65 GPH Spray Angle 80 Degrees Fuel Kerosene DF1 DF2 Fuel Oil JP8 Only Tank Capacity 12 0 Gal 45 5 Litres Duct Refer to Venting Instructions Dimensions W16 L48 H23 40 x 122 x 58 cm Weight Without Fuel 74 lbs 33 Kg ...

Page 7: ... mounted at the other end of the shaft The moving air in the nozzle lifts the fuel from the tank by siphon action and carries it into the combustion chamber Filters protect the fuel system at the filler neck and prior to the fuel entering into the spray nozzle The electrical control system is protected by a push button type circuit breaker A Safety Control Unit connected to a Photoelectric Cell sh...

Page 8: ...h the thermostat control connected and the optional outlet duct installed the heater is duct temperature limited This means that if the duct temperature reaches a pre determined temperature before the thermostat has reached its set position the heater will shut down Once the heater has shut down it will be necessary to wait 3 to 5 minutes before pressing the reset control NOTE Check for blockage o...

Page 9: ...ses the input voltage to a very high potential which causes an arc to be drawn between the electrodes of the spark plug The arc is used to ignite the fuel and air mixture within the combustion chamber Control System The safety control circuit consists of a duct over heat switch a light sensitive photocell and a safety control The safety control will trip if the heater fails to ignite or the flame ...

Page 10: ...t B Electrical Supply 1 Power source 120 volt 60 or 50 cycle single phase A C 2 When using an extension power cord make sure it is a three wire cord and of adequate size as listed in the following table EXTENSION CORD SIZE LENGTH OF CORD WIRE SIZE AWG 100 ft NO 14 200 ft NO 12 300 ft NO 10 400 ft NO 8 450 ft NO 6 C Starting the Heater 1 Open fuel filler and check for an adequate fuel supply 2 Plug...

Page 11: ...sure the heater is vented properly in order to assure proper combustion and avoid contamination of the ventilating air with exhaust gases If a vent is required use a CAH 132 Stack extension A vent stack over 12 in length may create back pressure on the heater reducing the combustion efficiency G Transportation and Storage WARNING FIRE EXPLOSION Fully drain and ventilate fuel tank before transporti...

Page 12: ...lush it out with clean fuel Refill with new clean fuel B Air Filters 1 Check and clean the intake air filter often The filter needs cleaning more often if the heater is operated in dusty conditions See Figure 3 page 11 2 To clean the intake air filter simply pull it out through the opening of the filter housing end cover see fig 3 Wash with mild detergent and hot or cold water dry thoroughly and r...

Page 13: ...oving Upper Shell WARNING When necessary to work on the heater with the upper shell removed be sure to unplug the power source from the heater If power is required to perform any maintenance procedure keep away from the fan and spark plug lead to prevent injury or serious electrical shock DO NOT operate the heater for extended periods of time with the upper shell removed If you do the combustion c...

Page 14: ... plug 2 Adjust the gap by bending the outside electrode See Figure 5 3 Reinstall the spark plug Figure 4 Spark Plug Gapping F Cleaning the Fuel Filter 1 The fuel filter is located on the fuel line assembly which leads up from the fuel tank to the burner Replace it twice each season or if the trouble shooting chart indicates 2 To remove the fuel filter gently pull both male ends out of the gas line...

Page 15: ...t the nozzle face whenever the burner head is removed from the heater 4 Soak the remaining parts of the burner head assembly for one hour in non flammable liquid cleaning agent Do not use gasoline kerosene or fuel oil Blow dry through fittings in rear of burner Blow the nozzle dry through the face outlet end only See Figure 6 5 When reinstalling the burner place it on the back of the combustion ch...

Page 16: ... test fire the heater 2 Clean the air intake filter See Section 3 Part B Page 10 3 Check and adjust the air pressure as described in Section 5 Part N Page 27 except that fuel must be used for test firing NOTE It is not possible to test fire a heater properly if this adjustment cannot be made 4 Allow the heater to run for 15 minutes Observe its operation during the test run 5 After making the press...

Page 17: ...aced C Defective or damaged spark plug 1 Remove spark plug from burner head Visually inspect spark plug for cracks or worn electrodes 2 Adjust spark plug gap see Section 3 Part E Page 12 3 Establish a good ground between the spark plug and the heater Be careful not to let any part of your person become a portion of the grounded circuit 4 Start heater observe the spark between the plug s electrodes...

Page 18: ... Check that heater is plugged in 2 Ensure voltage at heater is the same as indicated on heater Data Plate located on top cover and as indicated in the Specifications Page 4 3 Use an extension cord of sufficient guage to carry the electrical load of the heater see Chart Page 8 B Thermostat if used improperly set or defective 1 Adjust thermostat to a higher setting If heater still does not start dis...

Page 19: ...place a damaged fan Do not attempt to repair E Defective photocell 1 Open access hatch Remove photocell from bracket attached to burner head 2 Disconnect blue and white photocell leads 3 Connect ohmmeter test leads to photocell leads 4 Hold open end of photocell towards a light source a 60 watt light bulb or direct sunlight The resistance indicated on the ohmmeter should be low 5 Block off light c...

Page 20: ...the photocell Within 10 seconds the resistance indicated should be high 8 Replace photocell if there is no change in resistance during this procedure B Defective overheat switch 1 Remove leads from overheat switch located at output end of heater 2 Using a test lead with 2 alligator clips jump overheat leads white wires 3 Start heater If heater runs properly replace overheat switch C Defective safe...

Page 21: ... sure ducts are not kinked and are as straight as possible 2 Check for blockages in ducts and heater inlet 3 If using a two duct system remove the return duct from the shelter so the heaters draws in cool air You may also remove the duct entirely except in rainy conditions ...

Page 22: ...from starting when it is set to call for heat unplug thermostat D Transformer Check the transformer as follows WARNING To begin the transformer test first ensure the heater is not plugged in Then when power is required be EXTREMELY careful when checking the transformer A transformer in good condition produces VERY HIGH VOLTAGE at the output terminals 1 Open access cover and remove spark plug place...

Page 23: ... relay out of the heater by taking out the screw that holds its bracket to the left side of the motor mounting bracket CAUTION Avoid touching the bare wires or the exposed wire terminals c Fabricate a wire as shown in Figure 6 Take the black motor wire off its terminal 3 of the starting relay Touch the test prod to the terminal 2 of the red lead and plug in the heater The motor should start As soo...

Page 24: ...25 Figure 6 Test Probe ...

Page 25: ...AT PCD IGNITION TRANSFORMER DUCT RELAY MOTOR MOTOR RED BLUE WHITE BLACK BLUE RED WHITE BLACK RED WHITE PHOTOCELL WHITE 3 2 1 WHITE BLACK WHITE WHITE WHITE WHITE BLUE WHITE MANUAL RESET WHITE RED CV125CG SERIES WIRING SCHEMATIC ...

Page 26: ...e 1 Remove the fuel filter from the heater and clean it as described in Section 3 Paragraph G Page 15 2 Before reinstalling the fuel filter check the rubber bushing where it enters the fuel tank Be sure the bushing is in good condition not cut or cracked Replace a damaged bushing 3 Reinstall the fuel filter according to Section 3 Paragraph G Replace with a new filter if the connecting parts are da...

Page 27: ...l hinder the performance of the pump J Disassembly CAUTION Do not take apart the pump any further than you need in order to reach the parts which must be replaced 1 Remove the end cover and take out the intake and outlet air filters and the lint filter Disconnect the air line from the elbow 2 Hold the clean dry cloth under the pump and remove the six screws that hold down the end cover to the pump...

Page 28: ...the pump pressure higher then the recommended amount Failure to do so can result in higher then normal heat exchanger temperatures which can cause the heat exchanger to fail allowing dangerous Carbon Monoxide gas to enter the shelter Failure to follow these instructions could cause serious injury or death Note Adjusting the air pressure higher than the recommended amount will void your warranty 1 ...

Page 29: ... sure all parts are in place and the screws are tight before attempting to use the heater P Heat Exchanger Service WARNING CARBON MONOXIDE POISONING The heat exchanger must be inspected annually by qualified service personnel for leaks which could allow dangerous carbon monoxide gas to enter the shelter Failure to due so could cause severe injury or death 1 Inspect the heated air out end of the he...

Page 30: ...31 SECTION 6 Illustrated Parts List ...

Page 31: ...32 HEATER ASSEMBLY ...

Page 32: ...V 102 E Fuel Tank 1 3 WLK CV 101 Wheel 2 4 WLK CV 102 Axle 1 WLK CV 102 Axle Caps 2 5 CAH 128 Gas Cap 1 6 CV 125 1 Inlet Screen Adapter 1 CAH 142 Screw 2 7 CV 123 Adapter Output 1 CAH 142 Screw 2 8 CV 127 D Handle 1 9 CAH 103 2 Plug Handle 2 10 CV 124 5 Overheat Switch Assembly 1 ...

Page 33: ...34 HEATER INTERNAL EXPLODED VIEW ...

Page 34: ...CAH 104 D Lower Shell 1 10 CAH 104 1 Nut Clip 14 11 CAH 105 Grommet Small 2 12 CV 106 D Bracket Motor 1 13 CAH 114 D Relay 1 14 CAH 102 2 B Bushing 1 15 CAH 107 1 Transformer Assembly 1 CAH 142 Screw 2 16 CAH 108 1 E Fuel Line Assembly 1 17 CAH 109 3 Electrical Conduit Assembly 1 18 CAH 109 1 Clamp Conduit 2 19 CV 118 1 Safety Control Assembly 1 20 CV 119 1 Distribution Bar 1 21 CV 133 1 Power Cor...

Page 35: ...36 MOTOR AND PUMP ASSEMBLY ...

Page 36: ...p Gasket 1 5 M 105 D Plug 1 6 M 106 D Screw Pressure Adjust 1 7 M 107 D Spring Compression 1 8 M 108 D Ball 1 4 Diameter 1 9 M 109 D Front Cover Pump 1 10 M 110 D Blade Pump 4 11 M 111 D Rotor Pump 1 12 M 112 D Insert Rotor 1 13 M 113 D Pump Body 1 14 M 114 1 90 Degree Fitting Barb Hose 1 15 M 115 D Motor 1 16 M 116 D Screw 2 17 M 117 D Screw 11 18 M 115 2 D Nut 2 ...

Page 37: ...38 BURNER HEAD ASSEMBLY ...

Page 38: ...MBLY B 200 Index P N Description Quantity 1 B 201 Nozzle 1 2 B 202 Washer Nozzle Seal 2 3 B 203 Spring Nozzle Seal 1 4 M 114 Fitting Barb Hose 2 5 B 205 Body Burner Head 1 6 B 206 Sleeve Nozzle Seal 1 7 B 207 Spark Plug 1 ...

Page 39: ...40 WHEEL KIT ...

Page 40: ...41 WHEEL KIT CV 100 Index P N Description Quantity 1 WLK CV 101 Wheel 2 2 WLK CV 102 Axle 1 3 WLK CV 103 Washer 2 4 WLK CV 104 Cap Axle 2 5 CV 100 Lower Frame 1 ...

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