Shizuoka Seiki VAL6 MPX Series Service Manual Download Page 2 | Manualshive

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Names of components

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Burner Section

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Summary of Contents for VAL6 MPX Series

Page 1: ...ntents 7 8 Safety Devices Specifications Wiring Diagam Standard resistance Voltage 5 Sequence Time Chart 2 3 2 3 4 4 6 6 1 4 Names of components 5 13 Check Repair 15 2014 08 Troubleshooting Service Manual ...

Page 2: ...1 Names of components Burner Section 2 ...

Page 3: ...2 Safety Devices When the flame is extinguished turn OFF the operating switch Then turn ON the operating switch again after the problem is solved Switch Section 3 ...

Page 4: ... 38kg h Fuel Consumption High 62 500BTU 18kW High 15 800kcal h 18kW Dry Weight Low 55 500BTU 16kW Low 14 000kcal h 16kW Heat Output Tank Capacity 6 6 gallons 25liter Nozzle Wrench Power Supply AC120V 60Hz AC230V 50Hz When ignitiong 100W Continuous Operating Time Low 15 7hours High 13 7hours When burning 120W When burning 112W 4 Wiring Diagram Electric Fuse 3A 1 6A 720 H 520 W 675 D 70 5Lbs 32kg Ac...

Page 5: ...nitor 5sec within 10sec 10sec pump delay Fuel pre heater Operating when the temperature in the inside of burner cover falls below 41 degrees Fahrenheit 5 degrees Celsius and stopping when it reach over 68 degrees Fahrenheit 20 degrees Celsius Sequence Time Chart post ignition Switch OFF 200sec post purge Ignition 5 ...

Page 6: ...is put into the socket Fuse blows out Fuel leaks 4 3 2 Misfire lamp is lit Misfire lamp is lit Sequence of operation is normal but it doesn t ignite Igniter does not spark Igniter does not operate 1 6 Troubleshooting Combustion stop during the operation Misfire within 10 seconds after ignition The heater does not ignite though the heater is working The heater does not start Misfire lamp is lit Ope...

Page 7: ...sformer connector CN 7 If multimeter reads normal voltage at input side and reads 0V at output side transformer fails Replace transformer Standard purple purple about AC15V Loose connection of operating switch connector Plug in operation switch connector CN 8 again and then turn on If it works normally operation switch connector fails in contact Plug in connector CN 8 firmly Failure of operating s...

Page 8: ...e nozzle Clean and rinse the fuel tank with kerosene alcohol or acetone Loose joint in fuel lines Check looseness of each joint If heater ignites by joints fastened more tightly air is absorbed into fuel lines at loosed joints Fasten joints more tightly Fuel pump is clogged or failure Remove burner cover and fuel outlet line and then turn on the switch No fuel is pumped up fuel pump is clogged or ...

Page 9: ...ing If opening is too extensive flame is short because combustion air is too much Decrease opening to reduce combustion air Normal scale MPX5 2 5 MPX1 4 5 Loose connection of flame monitor Plug flame monitor connector CN 11 again and then turn on If it works normally flame monitor connector fails on contact Plug connector CN 11 firmly Failure of flame monitor Measure voltage at flame monitor conne...

Page 10: ...nnector fails on contact Plug connector CN 11 firmly Failure of flame monitor Unplug flame monitor connector CN 11 and then check transition of resistance by changing quantity of light into flame monitor If resistance doesn t change flame monitor fails Replace flame monitor Nozzle clogged Replace nozzle If it works normally nozzle was clogged Replace nozzle Filter element clogged Check clarity of ...

Page 11: ...of 1000m 3000ft If using at higher than the altitude of 1000m 3000ft heater burns imperfectly because of shortage of oxygen Extend combustion air inlet opening Normal scale MPX5 2 5 MPX1 4 5 Incorrect nozzle Check makers imprint of the nozzle if it is correct Mark 0 4USgal h 80 H danfoss If makers imprint is incorrect the nozzle is incorrect Replace incorrect nozzle for correct one 7 Combustion is...

Page 12: ...troller then measure resistance between terminals If resistance value is 0Ω fan coil is short circuited Replace fan motor Short circuit of igniter Unplug igniter connector CN 4 from burner controller then measure resistance between terminals If resistance value is 0Ω primary side of igniter is short circuited Replace igniter Without tester Unplug igniter connector CN 4 and then start operation If ...

Page 13: ...t4 7ｋΩ Standard resistance Standard Voltage Purple Purple output about 6 3Ω about 6 3Ω dark light DC1 2V and under Black Black bold output about 4kΩ about 2 8kΩ not in working about 89Ω about 395Ω input Ω 0Ω Ω Blue Blue １ Thermostat for pre heater Blue Blue CN4 Ω CN13 1 2PIN 3 4PIN 0Ω Transformer Igniter Overheat Protection Tip over Switch Red Red Black Black Black Black thin CN7 Red White 7 0Ω Fu...

Page 14: ...MPX5 Brown Light Blue MPX1 AC 120V 10 AC 230V 10 Purple Purple output Transformer CN7 Red White input AC 120V 10 Fuel Pump Pump coil Blue Blue AC 60 96V AC 115 184V 1 Black Red High AC 120V 10 AC 230V 10 Igniter CN4 Black Black thin Fuel Pump Switching solenoid valve yellow yellow Fan Motor CN3 1 2PIN 1 3PIN AC 120V 10 AC 230V 10 1 3PIN CN6 2 4PIN Black Blue Low AC 120V 10 AC 230V 10 input AC 120V...

Page 15: ...g a fuse Mesuring voltage 22 Adjusting an air inlet opening of fan motor 17 17 17 Checking a surge absorber SA1 Figure 6 Figure 12 Mesuring resistance Cleaning a frame monitor 20 21 19 18 18 Checking a filter element Figure 14 Figure 13 Checking a fuel tank Checking a burner cone and whirl vane Figure 8 Figure 5 Figure 7 Figure 9 Figure 3 Figure 4 Figure 11 Figure 10 15 ...

Page 16: ...Unscrew three nuts as below and take the burner unit off Removing a burner cover Figure 2 Removing a burner unit Unscrew two screws and take burner cover off Figure 1 Nuts Burner cover Screws 16 ...

Page 17: ...ter Take out the burner controller and point the lead head at solder part of SA1 Figure 4 Turn on the multimeter and set AC voltage range partially direct current range Insert the lead head of multimeter to connector lead wire side and measure resistance Insert the lead head of multimeter to connector and measure voltage Mesuring voltage Be careful not to insert the lead head of resistor strongly ...

Page 18: ...or not the filter element is dirt or foul In case the filter element is dirty replace it with a new one Be sure to unplug the power plug then open the fuse cap and Check whether fuse is blown out Figure 6 Replacing a fuse Figure 7 Fuse cap 18 ...

Page 19: ...Figure 9 Checking a fuel pump Figure 8 Checking a fuel tank Fuel outlet line Take out a fuel outlet line then check whether or not fuel comes out CAUTION Fuel will squirt cheerfully 19 ...

Page 20: ...gure 11 Positioning a electrode Take out a burner and check each clearance as below Tip of electrode Manufacturer does not recommend to fix electrode as they are very sensitive to position so it is recommended to replace it Observation 20 ...

Page 21: ...r abnormal spray Burner cone Take out a burner and check whether or not burner cone and whirl vane are dirt or not In case the burner cone and or whirl vane is dirty clean it them with cloth or brush Infrequently abrasive cleanser may be required Whirl vane Figure 12 Checking a burner cone and whirl vane 21 ...

Page 22: ...ter ignition Figure 13 Adjusting an air inlet opening of fan motor MPX5 2 5 Decorative screw Unscrew a decorative screw and then extend narrow an air inlet opening Also trial operation is required after each adjustment Be sure to repeat adjustment until following symptoms are identified 4 5 Scale MPX1 Observation When heater is used above 1 000m 3 000ft sea level adjust air inlet on fan motor for ...

Page 23: ...er control A Connectors Thermostat B Measure resistance of the pre heater between A and B see below graphic illustration Standard resistance 735Ω Connectors Thermostat Unplug the connector of pre heater Figure 14 Checking a pre heater 23 ...

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