SEQUENCE
ANALYSIS
14
01/01/2016
5.
Sequence:
Burner
operation
switch
(SW3)
to
"ON",
energizing
burner
circuit.
Action:
Fuel
supplied
to
burners.
Ignition
firing
light(s)
(LT18,
LT19,
LT20,
LT21)
on
for
3
‐
5
seconds,
burner
proven
light(s)
(LT22,
LT23,
LT24,
LT25)
on.
Symptoms:
A.
Dryer
shuts
down
immediately
upon
engaging
burner
Switch
(SW3).
B.
Reset
flame
control
light
on.
C.
Some
or
none
of
the
ignition
firing
light(s)
(LT18,
LT19,
LT20,
LT21)
light.
D.
Some
or
none
of
the
burner
proven
light(s)
(LT22,
LT23,
LT24,
LT25)
stay
lit.
E.
All
burner
proven
light(s)
(LT22,
LT23,
LT24,
LT25)
come
on
momentarily,
then
dryer
shuts
down.
Possible
Causes:
A1.
Low
grain
situation
(low
grain
light(s)
(LT9,
LT10)
on,
indicating
low
grain).
Note:
burners
will
not
fire
without
dryer
being
full
of
grain.
A2.
Defective
low
grain
switch(s)
(SW9,
SW10).
A3.
Flame
system
bypass
delay
relay
(TD1)
is
set
too
low
(15
sec).
A4.
Vapor
cutoff
valve
coil
(SOL1)
or
liquid
cutoff
valve
coil
(SOL2)
shorted.
B.
Flame
failure,
safety
lockout
on
flame
control(s)
(FC1,
FC2,
FC3,
FC4).
C1.
Defective
burner
switch
(SW3)
C2a.
Defective
flame
control
(FC1).
Defective
ignition
firing
light
(LT18).
C2b.
Defective
flame
control
(FC2).
Defective
ignition
firing
light
(LT19).
C2c.
Defective
flame
control
(FC3).
Defective
ignition
firing
light
(LT20).
C2d.
Defective
flame
control
(FC4).
Defective
ignition
firing
light
(LT21).
D1.
No
fuel
to
dryer.
D2.
Plugged
fuel
line
strainer.
D3.
Defective
vapor
cutoff
valve
coil
(SOL1)
or
liquid
cutoff
valve
coil
(SOL2).
D4.
Defective
pressure
regulator.
D5.
Plugged
burner
holes.
D6.
Leak
in
gas
line
to
burners.
62
Summary of Contents for DP
Page 1: ...Operation Manual 2016 MODELS MSF DP DPSL DPXSL DPX4T DPX8T DPX12T DPX16GT Grain Dryer ...
Page 2: ......
Page 4: ...2 ...
Page 6: ...GENERAL 2 01 01 2016 Dryer Labels Location 4 ...
Page 7: ...GENERAL 3 01 01 2016 5 ...
Page 14: ...12 ...
Page 24: ...STARTUP 10 01 01 2016 Alarm Limit Indication Error Messages 22 ...
Page 25: ...STARTUP 11 01 01 2016 23 ...
Page 26: ...STARTUP 12 01 01 2016 24 ...
Page 32: ...STARTUP 18 01 01 2016 GRAIN SHRINKAGE TABLE SHRINKAGE WHEN GRAIN IS DRIED TO THESE LEVELS 30 ...
Page 46: ...STARTUP 32 01 01 2016 Alarm Limit Indication Error Messages 44 ...
Page 47: ...STARTUP 33 01 01 2016 45 ...
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