Shizuoka Seiki VAL6 EPX Series, Руководство по обслуживанию

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PAGE 18
VAL6 EPX Trouble Shooting
No. Possible Cause How to check Result Remedy
67 Replace a burner control
Combustion is not stable
Find a cause(s) of low
voltage and solve it
* or plug into another
outlet
Clean a vanes of
combustion fan
71
Check whether applied
voltage is normal
Standard: EPX1 AC230V
EPX5 AC120V If applied voltage is lower
than 108V, imperfect
combustion by decreasing
of combustion fan rotation
speed occurs
Adjust a air inlet opening
Normal scale： 5
Check whether air inlet
opening for combustion is
appropriate If opening is small,
imperfect combustion
occurs by low oxygen
Check whether a
combustion fan is working If the combustion fan does
not run, imperfect
combustion occurs by low Replace a combustion fan
and/or a burner control
If temperature is under -
20℃ or summer fuel is
used, fuel is not sprayed
normally from the nozzle
because fuel viscosity is
increased by low ambient
temperature
Combustion air is
insufficient
Check whether vanes of
combustion fan are dusty If vanes are dusty,
imperfect combustion is
occurs by low oxygen
Heater produces BLACK smoke
Warming up fuel, refueling
winter fuel or mixing
kerosene with fuel in order
to decrease fuel viscosity 69
Nozzle is clogged Replace a nozzle
Clean and flush the tank
with kerosene, alcohol or
acetone 70
Loose fitting in fuel line Confirm no loose fitting
between fuel tank and fuel
pump
If any loose fitting exist,
fuel pump suck the air Tighten all fittings and
repeat start-operation 68
Smoke comes out
Smoke is continuous for about 3 minutes (or heater produces WHITE smoke)
Fuel viscosity is
increased by low
ambient temperature Check whether ambient
temperature is not under
minus 20 degree Celsius (-
20℃) and make sure
winter fuel is used
Heater is using in high altitude
《How to adjust a air inlet opening》
72 If its altitude is higher than
1000m, imperfect
combustion occurs by low
oxygen environment Expand an air inlet opening
gradually until smoke is
clear away
Normal scale: 5 Concentration of
oxygen for combustion
is low because of high
altitude Check whether the heater
is operating in an altitude
higher than 1000m
Plug into a working outlet 66
Not applicable in above
If it shows less than 90% of
standard voltage, the
heater detects low voltage
Overvoltage lamp lights during operation (Low voltage detection is working)
The heater detects low
voltage Check the voltage of power
source
Standard: EPX1 AC230V
EPX5 AC120V
expand an air inlet gradually until smoke is
clear away or flame doesn't protrude from the
radiation disk. (scale :from 5 to 5.5 or 6 etc)