User Manual for SUNFIRE models including: SF-150 Radiant Heater, SF-150, Radiant Heater
Dec 31, 2021 — Eliminate light to CAD cell/test component. Tip switch contacts are closed. If plugged in, verify amber light is on. If not, it is a tip switch issue.
FIGURE 2-1 CAD Cell FIGURE 2-2 Inside igniter box CAD Cell Electrode Igniters Note: If there is excessive dust while running the SunFire, the inside area of the igniter box should be inspected and cleaned periodically. Dust can build and causing the unit to turn of prematurely from dust
File Info : application/pdf, 20 Pages, 2.46MB
DocumentDocumentSERVICE MANUAL MODEL: SF-150 Service Manual SF-150 Ra3 Symptom Possible Cause Corrective Action 1. Will not start. Main electrical power circuit breaker tripped Reset breaker Optional thermostat turned down or improperly installed/defective Turn thermostat up, check for loose wires and test components and replace if needed. Primary control safety tripped/defective Reset/test components, replace if needed Too much light showing on CAD Eliminate light to CAD cell/test cell/defective component Tip switch contacts are closed If plugged in, verify amber light is on. If not, it is a tip switch issue. Make sure SunFire unit is level. If level, tip switch may be defective and need replacement. 2. Attempts to fire but does not Low fuel establish a flame Contaminated fuel Add fuel to tank Drain fuel by removing plug on bottom of fuel tank, clean, retighten plug, and fill with clean fuel. Clogged nozzle/ Dirty fuel filter Air bubble in fuel line Repalce nozzle/fuel filter Can somet imes be cleared by st art ing 3-4 t imes. Or fix using t he follow ing process. St ep 1: Open burner cont rol housing. St ep 2: Loosen nut t hat holds copper fuel line t o t he ignit or box See Fig. 7-1. St ep 3: Hold a rag around loosened nut t o cat ch fuel. St ep 4: Turn unit " on" . At 15 seconds t he solenoid w ill open from t he pump and fuel w ill pour out . Cat ch fuel in rage and immediat ely t urn unit off. St ep 5: Re-t ight en copper fuel line and re-t est heat er. Also Inspect fuel filt er assembly and hose connect ions for air gaps if not t ight or st ripped or for possible cracks in t he hose. Symptom Possible Cause 2. Attempts to fire but does not Elect rodes not sparking establish a flame - cont'd Clogged nozzle or defect ive fuel pump. 3. Fires and then fails Only if fails contintually within 30 seconds CAD cell is dirty CAD Cell is misaligned CAD cell is defective Burner settings may need adjustment. Corrective Action Through front heat dome, look for sparking w hen t urning unit on. Clean or replace elect rodes. Replace nozzle by removing burner from cone assembly. Or replace defect ive fuel pump. Clean CAD cell with cloth. If issue still pursists see below. Test CAD cell by slightly adjusting position a few times. If issue pursists, see below. Test by using a jump wire from terminal F1 to terminal F2 on the primary control with the following process. Step 1: Hook jumper to F1. Step 2: Start unit and wait until flame is present. Step 3: Then immediately hook jump wire to F2. If unit continues to run after 1 minute, CAD cell is defective and needs to be repalced. WARNING: THIS IS FOR TESTING PURPOSES ONLY. FOR SAFETY, DO NOT CONTINTUE TO OPERATE USING JUMP WIRES. Test burner. Remove burner housing panel to access the burner. Start the SunFire and view the LED lights to the right of the burner primary control. If green light continues to blink, an adjustment may be needed. Adjust the top fuel pressure screw along with very slight adjustements to the air band until a correct adjustment is achieved and the green light stays solid green. Symptom 4. Fires and then fails Only if fails after at least 30 seconds with a flame 5. Black smoke or whisking Whisking - flames protrude through holes in dome face 6. Runs briefly on a generator and shuts off 7. Amber lamp does not light 8. Won't fire If using a thermostat Possible Cause Corrective Action Contaminated fuel supply Drain tank from side plug, clean, and fill with clean fuel. Dirty fuel filter Clean and replace filter Improper air flow causing a poor Adjust air band setting to 1.50 flame. The CAD cell may shut and test flame. See air band unit off with a poor flame. adjustement on Figure 3-1. Plugged nozzle or pre-heater Clean or replace nozzle assembly Improper power supply If using agenerator, run for 20 minutes and retry. Try a clean or different power supply. Slight haze or dust build up on CAD cell. Wipe off CAD cell eye w it h a rag and rest art . you may need t o click reset but t on. Nozzle is dirty or clogged Replace nozzle Improper Air flow Adjust air band to 1.5 position Improper fuel flow rate Adjust fuel flow rate Only after replacing nozzle Generator is low on charge Run generator for 20 minutes, then plug in SunFire unit and restart. Loose wires Tip switch is closed Check all power and tip-switch wires for cut or loose wires and secure or fix if needed. Level SunFire or replace tip switch. Bad Light Replace light Defective primary control circuit Replace primary control board Check temperature setting. Set thermostat to a higher temperature if desired. Check for loose wires Tighten wires for improved connection to thermostat. Defective thermostat Replace thermostat. Note: Thermostat must not require an external 24V power source - if used it will damage the primary. Symptom Possible Cause 9. No green light calling for heat Check the reset button when unit is turned on If using thermostat Defective Primary 10. Bad flame Clogged Nozzle Corrective Action Push and hold the reset button See #8 above Replace primary Soak Nozzle in parts cleaner/degreaser and blow it out. Or replace nozzle. 11. Smoky flame Dirty/poor fuel Clogged/dirty filter Open transformer lid Diesel treatment was used drain fuel and add new clean fuel. Replace filter Make sure lid is closed Add clean fuel to decrease treatment ratio, or drain all fuel and replace with new fuel and clean diesel treatment. Air flow is restricted Check air band and increase the air flow until smoke is no longer visible. Improper seal between fuel fliter Check the seal on the fuel filter and filter assembly. to make sure there are no obstructions between the filter and the filter assembly that could allow air to become mixed in the fuel, causing an improper fuel mixture. 12. No flame Bad fuel No fuel fuel is not spraying Drain fuel from tank and add new clean fuel. Add fuel There are multiple possibilities. Call your distributor or the manufcturer at (855) 251-1649 for instructions. Vaccum leak Check hoses for leaks and tighten or replace. Other issues We are here to assist you. Call us at (855) 251-1649 HELPFUL SERVICE MANUAL IMAGES FIGURE 1-1 Burner Housing/Control Box Housing Screw Housing Screw FIGURE 1-2 Burner Pressure Valves Low Pressure Valve High Pressure Valve Note: Turn right for more fuel flow and left for less fuel. FIGURE 1-3 Igniter Assembly Retaining clamps Note: Loosen screws and turn clamps to open igniter assembly. FIGURE 2-1 CAD Cell FIGURE 2-2 Inside igniter box CAD Cell Electrode Igniters Note: If there is excessive dust while running the SunFire, the inside area of the igniter box should be inspected and cleaned periodically. Dust can build and causing the unit to turn of prematurely from dust build up on the CAD cell, which will shut the unit off for safety as the flame will not be visible and the electrodes may not receive a proper spark If igniters are dirty. If dirty, simply clean with cloth. FIGURE 3-1 Air Band Air Band Setting Note: The Air band should be set to approximately 1.25 - 1.5. Reducing the air band to a lower level will reduce the amount of airflow to the flame giving a higher concentration level of fuel that will raise the temperature of the SunFire. However, if reduced too low, it can cause whisking see Figures 4-1&2 for examples. Reducing too low can become dangerous. This can easily be solved by increasing the amount of air within the flame by increasing the level of the air band. If the air band level is set too low, upon start up, you may notice some smoke and a more noticeable smell of diesel. FIGURE 4-1 Primary Control Self Test LED Note: Will blink for a second before the green flame sense light turns no. This simply let's you know the unit has been turned on and will be calling for heat to produce a flame. FIGURE 4-2 Primary Control Green LED Note: A green light that blinks indicates potential issues with the flame not running efficiently. Check symptoms and causes on previous pages. If green light remains solid, the flame is running correctly. If flame gets just a little worse, it will shut the heater off. It will auto-restart one more time and if it happens again,it will go into lockout and you will need to hit the reset button to restart. FIGURE 4-3 Primary Control Red LED Note: If red "locked out" light is on, the control has failed to sense a flame after two attempts to fire and the reset button must be pressed before attempting to start again. When unit is turned on and does not fire on first attempts, this light will blink for 45 seconds. A 2nd attempt will be made and if no flame is sensed, the light will turn solid until the reset button is pushed. FIGURE 5-1 Minor Whisking Small flames escaping dome face Note: It is recommended to increase the air band setting to approximately 1.50 and reduce the fuel flow on the high pressure valve if necessary. FIGURE 5-2 Severe Whisking Large flames escaping dome face. Warning: This is can be dangerous at these levels. It is recommended to immediately increase the air band setting to approximately 1.50 and reduce the fuel flow on the high pressure valve. FIGURE: 6-1 View Inside Cone of Nozzle/Flame Assembly Electrodes Air Flow Spinner Nozzle Burner Cone Note: It is important that the nozzle and electrodes remain free from excessive build-up. Clean if necessary or replace nozzle. It is critical to never run the unit without the burner cone in place to produce a proper flame. FIGURE: 7-1 Copper fuel line in Burner Assembly Fuel Line Connect ion 1 2 3 4 6 16 15 5 14 13 12 9 10 7 8 PAGE 1 OF 8 Page 11 of 19 ITEM NO. PART NUMBER 1 29462 2 34099 3 29468 4 34502 5 34009 6 29463 7 34505 8 29518 9 29467 10 7202 11 29465 12 34514 13 29492 14 34516 15 29469 16 34515 DESCRIPTION SUNFIRE DOME ASSEMBLY NUT 5/16-18 SERR FLANGE SUNFIRE RIGHT LOWER STRAP SCREW 3/8-16X1" HEX NUT 3/8-16 FLANGE SF-150 BURNER 5/8 PUSH ON WHEEL RETAINER WHEEL 10X2.75 HUB2.25 SUNFIRE TANK ASSEMBLY NUT 3/8-16 HEX SUNFIRE LIFTING HANDLE ASSEMBL SCREW 3/8-16 X 1-1/2 HH ZN HINGE HANDLE BUMPER SELF ADHESIVE SF-150 SUNFIRE LEFT LOWER STRAP PIN QUICK RELEASE 6MM DIA 40M QTY. 1 4 1 9 4 1 2 2 1 4 2 4 1 2 1 2 PAGE 2 OF 8 Page 12 of 19 ITEM NO. PART NUMBER 1 29506 2 29411 3 29402 4 29407 5 34447 6 29401 7 29511 8 29484 9 29467 10 37500 DESCRIPTION CAP GAUGE COMBO RAD HEAT 8" FTNG,JIC,ST,H,90EL06MJ-06MJ HEATER BAND FOR FUEL FILTER FTNG,JIC,ST,H,90EL06MJ-08MP 1/4-20 x 3/8" FUEL FILTER ASSEMBLY SUCTION LINE HOSE 6" RAD HEAT TUBE DRAW ASSEMBLY SUNFIRE TANK ASSEMBLY FUEL FILTER REPLACEMENT BOTTOM HALF/QTY. 1 1 1 2 2 1 1 1 1 1 PAGE 4 OF 8 Page 14 of 19 1 2 34 5 6 7 8 20 19 18 17 16 10 9 11 12 PAGE 5 OF 8 13 14 15 Page 15 of 19 ITEM NO. PART NUMBER 1 13154 2 26669 3 29418 4 29459 5 81010390 6 33404 7 29544 8 9502 9 29505 10 29450 11 29437 12 33168 13 35408 14 33169 15 29449 16 29513 17 29512 18 29460 19 29523 20 8981 DESCRIPTION NOZZLE W/CHECK VALVE RADIANT HEATER BURNER CONE SPINNER RAD HTR VERSION 2 FLANGE GASKET RAD HTR ELECTRIC IGNITER SF-150 PRIMARY SUNFIRE BURNER BLOWER WHEEL MOTOR 1/6HP ELECTRODES SWITCH TIP RAD HEATER CORD POWER RAD HTR LED AMBER LIGHT PLUG RUBBER RESET RADIANT HEAT LED GREEN LIGHT SWITCH ON/OFF HI/LOW RAD HTR FILTER TO BURNER HOSE 10.5" RETURN FROM BURNER TO TANK 13.5" PUMP HEAD RADIANT HEATER COUPLER BURNER RAIDANT HEATER CAD CELL QTY. 1 1 1 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 1 1 PAGE 6 OF 8 Page 16 of 19 ITEM NO. PART NUMBER 1 34457 2 34400 3 29472 4 29487 5 29471 6 29542 7 29508 8 29499 9 29507 10 29495 11 34116 12 34399 13 34010 DESCRIPTION SCREW 3/8-16 X 1-1/2 HH 3/8 FLAT WASHER - SS FLAME GUARD ROLLED SHROUD ASSEMBLY DOME PUNCHED FACE RADIANT HEATER TOP GASKET SUNFIRE DOME INSULATION INSULATION DOME GASKET SUNFIRE SPUN DOME WITH BRACKET SUPPORTS SF HEAT SHEILD 10 X 5/8 HEX WASHER HEAD TEK Z 3/8 SPLIT LOCK WASHER - SS 3/8-16 BRASS HEX NUT QTY. 8 8 1 1 1 1 1 1 1 1 4 8 8 Page 18 of 19 Page 19 of 19 IG N IT E R BLUE IGNITER SOLENOID 2 VALE L1 RED 120 L1 BLACK MOTOR FAN V A LV E VIOLET RED FROM ORANGE TERMINAL UNDER SIDE SOLENOID 1 VALE T1 T2 F1 F2 A A YELLOW PHOTO CELL GREEN GREEN (THIN) RED FROM UNDERSIDE W HITE FROM UNDERSIDE GREEN ORANGE W HITE BLACK FROM UNDERSIDE O N /O FF SW ITCH EMPTY HIGH/LOW EMPTY SWITCH BLUE POW ER CORD TO COVER SW ITCH G REEN LIGHT R ED /B L A C K RED BLUE JUNCTION BOX THERMOSTAT CO N N EC T IO N POINT AMBER LED 120 VOLT END OF POW ER POW ER CORD CORD TO C O VER T IP SW ITCH YELLOW W HITE/BLACK BLACK GREEN (THIN) O R ANG E ORANGE TO FAN RED GREEN W HITE YELLOW HEATER FILTER W IRE NUT 120 VOLTS 60 HERTZ 63003DRSOLIDWORKS PDF Publisher