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VAL6 EPX
Maintenance Manual

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Summary of Contents for Shizuoka Seiki VAL6 EPX1

  • Page 1 VAL6 EPX Maintenance Manual...
  • Page 2: Names Of Components

    Names of components...
  • Page 3: Specifications

    Specifications ■Burner Control for EP6JA Wiring Diagram 0.75gal/60°H for H lot 0.85gal/60°H Wiring Diagram...
  • Page 4 Sequence Time Chart Plug Switch Switch Ignition Operation Switch Fan Motor Igniter Fuel Pump Flame Monitor Fuel pre-heater within  3sec 2sec 10sec 10sec 200sec pump delay post ignition post purge ignition delay...
  • Page 5: Description Of Indication Lamps

    Description of indication lamps ①Normal operation ● ★ ②Misfire ★ ③Overheated ★ ④Tilted ★ ⑤Overvoltage detected ● ● ● ● ● ⑥Power shutdown ★ ★ ★ ★ ⑦Misfire 5 times in a row ● ● ⑧Low voltage detected ★ ★ ★...
  • Page 6 Status/(Timing) Possible causes Remedy ⑦ Misfire 5 times in a row Start procedure is fail Nozzle or filter element is Replace a Nozzle or filter Description: When the heater with five(5) consecutive clogged element does not ignite with five (5) tries thus the heater shall consecutive tries, four (4) be beyond switch control...
  • Page 7 Standard resistance & Standard Voltage Chart1 Standard resistance of functional parts Resistance Connector No. Parts name Lead Condition Remarks EPX1 (230V) EPX5 (120V) 0Ω Operation 1-2 PIN Red-Red ∞Ω switch CN 1 0Ω Changeover 4-5 PIN White-White ∞Ω switch Activation: at an angle of 0Ω...
  • Page 8 Troubleshooting for VAL6 EPX1/EPX5 Phenomenon Fuel is leaking Fuse blows out At the time of plugging into the power supply At the time of turning on operation switch About 3 seconds after turning on operation switch About 5 seconds after turning on...
  • Page 9 PAGE 10 VAL6 EPX Trouble Shooting  Possible Cause How to check Result Remedy Fuel is leaking Drain gasket and/or Remove a drain bolt from Fuel leaks because of Replace a packing packing is defective tank after draining fuel, and broken bolt packing check whether its packing are damaged 《How to drain the fuel》...
  • Page 10 PAGE 11 VAL6 EPX Trouble Shooting  Possible Cause How to check Result Remedy About 3 seconds after turning on operation switch If it shows 0Ω, the coil of Ignition transformer is Disconnect ignition Replace an ignition short-circuited transformer connector (CN ignition transformer is transformer 12) from burner control,...
  • Page 11 PAGE 12 VAL6 EPX Trouble Shooting  Possible Cause How to check Result Remedy Power cord is Take power source If either of the lead is Replace a power cord disconnected connector (CN 11) out broken, power cord is from burner control, then broken check each lead with circuit tester...
  • Page 12 PAGE 13 VAL6 EPX Trouble Shooting  Possible Cause How to check Result Remedy Internal thermostat is Increase the preset If it works normally, the Increase the preset working temperature of thermostat heater is under control of temperature of thermostat. (the preset thermostat.
  • Page 13 PAGE 14 VAL6 EPX Trouble Shooting  Possible Cause How to check Result Remedy Fan motor is stuck Turn the fan by hand If the fan doesn't rotate or Remove an obstacle in fan does rotate hardly, the fan motor or replace a fan motor is stuck motor Fan motor is defective...
  • Page 14 PAGE 15 VAL6 EPX Trouble Shooting  Possible Cause How to check Result Remedy If it shows ∞Ω, fuel pump Fuel pump is defective Disconnect fuel pump Replace a fuel pump connector (CN 14) from is defective burner control, then (Cord color & Standard value) measure coil resistance EPX1 blue - blue: approx.
  • Page 15 PAGE 16 VAL6 EPX Trouble Shooting  Possible Cause How to check Result Remedy Nozzle is clogged Replace a nozzle Clean and flush the tank with kerosene, alcohol or acetone 《How to replace a nozzle》 unscrew three nuts and take the burner unit off Fuel pump is clogged or Loose the brass nut, then If no fuel is pump up or fuel...
  • Page 16 PAGE 17 VAL6 EPX Trouble Shooting  Possible Cause How to check Result Remedy flame monitor Poor lighting is Remove a burner and If they are dirty or Clean the whirl vane and detected by flame check whether the whirl dustiness, flame monitor inside of draft tube or monitor vane and inside of draft...
  • Page 17 PAGE 18 VAL6 EPX Trouble Shooting  Possible Cause How to check Result Remedy Overvoltage lamp lights during operation (Low voltage detection is working) The heater detects low Check the voltage of power If it shows less than 90% of Plug into a working outlet voltage source standard voltage, the...
  • Page 18 PAGE 19 VAL6 EPX Trouble Shooting  Possible Cause How to check Result Remedy Smell of fuel comes out Combustion air is too Check whether air inlet If air inlet opening if too Narrow an air inlet opening much opening for combustion is much, imperfect Normal scale: 5 appropriate...
  • Page 19 PAGE 20 VAL6 EPX Trouble Shooting  Possible Cause How to check Result Remedy Adjustable resistor Plug adjustable resistor If it works normally, Plug connector (CN 16) (Internal thermostat connector (CN 16) again adjustable resistor firmly cable) connector (CN connector fails on contact 16) is loose connection If it shows ∞Ω...

This manual is also suitable for:

Val6 epx seriesVal6 epx5