Alto-Shaam 4-20 ESi, Техническое и сервисное руководство

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T
R O U B L E S H O O T I N G
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R E E S
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T R O U B L E S H O O T I N G T R E E S
N o S t e a m O p e r a t i o n w i t h R e t h e r m O p t i o n ( 3 8 0 - 4 1 5 V , 3 P H )
Is controlling probe
below its set point?
Is Y1 solenoid being
energized?
Controlling probe must be
below set point for steam
production to take place
No
Yes
Yes
No
No
Yes
L1/A1 supplied from
RBH X4/408, L2
supplied from TB 12
Replace Y1 solenoid Is Y1 solenoid opening?
No
Is water flowing from
Y1 to flow control
valve inlet?
Repair obstruction
between Y1 and flow
control valve inlet
Is water flowing
from flow control valve outlet
to injection pipe inlet?
Repair obstruction between
flow control valve and
injection pipe
Is water flowing through
flow control valve?
Repair/replace flow control
valve as required
Is injection pipe clear
of debris?
No
Yes
Yes
No
No
Yes
Yes
Repair/replace
injection pipe
Is K-41 contactor closing?
No
Yes
Is water flowing
into the center of the
fan wheel?
Repair injection pipe/
disintegration box as required
No
Yes
Is K-41 contactor coil
energized?
L1/A1 from RBH X4/412, L2/A2 from N7 high
limit through A2 on K-42 contactor
No
Yes
Is voltage across
terminals 2/4 on K-41
contactor?
Yes
No
No
No
Yes
Replace K-41 contactor
L1/L2 supplied from
K-77 contactor
Is L1/L2 voltage across
terminals 1/3 on K-41
contactor?
Replace K-41 contactor
Yes
Yes
Is L3 power at
terminal 5 of K-42
contactor?
No
Is water connected
to the oven, turned on and
operating at pressures
between 30-90 psig?
L3 supplied to K-41/16
from K-77 contactor
No
Steam cycle is operating
Yes
Is K-42 contactor coil
energized?
A1/L1 supplied from RBH X4/410, A2/L2
supplied from N7 high limit through K-61
N/C contacts (if Browning Bar option)
Is L3 power at
terminal 6 of K-42
contactor?
Replace K-42 contactor
No
Yes
Is there L3 voltage
across terminal 1 at
F12 fuse?
Repair wiring between
K-42 and F12
Is E-41 drawing current
on all legs?
Ohm out E-41 element and
replace if necessary
No
No
Yes
Yes
Is there L1/L2
voltage across terminal 1
at F10/11 fuses?
Repair wiring between
K-42 and F10/11
Is there L3 voltage
across terminal 2 at
F12 fuse?
Replace blown F12 fuse
Is voltage across
E-41 convection
elements?
Repair wiring between
K-41 and E-41
No
No
No
Yes
Yes
Yes
Connect water,
turn on, or correct
pressures and retest