•
Must be set for a discharge pressure of 15 psi.
Replace a steam coil as follows:
1.
Remove
A.
Disconnect the union in steam supply line to
the coils.
B.
Disconnect the union in condensate
discharge line from the coils.
C.
Disconnect the union at each coil to remove
the steam supply header.
D.
Disconnect the union at each coil to remove
the coil condensate collection header.
E.
Remove the four bolts that secure the coil in
place.
F.
Pull the coil out of the unit.
G. Refill the boiler and check for proper
operation.
NOTE:
Always replace the gasket when a heating
element is removed / replaced.
2.
Install
A.
Look at the flange and mating surfaces.
B.
If required clean the flange and mating
surfaces.
C.
Install a new gasket on the coil mate face.
D.
Insert the coil in the unit and secure in place
with bolts. Tighten the bolts hand tight plus
a quarter turn.
Clean pipe threads and apply thread
sealant that is suitable for use with propane gases.
E.
Reconnect the unions and tighten them
hand tight.
3.
Turn steamer power switch ON.
4.
Allow steam generation and pressure to rise to
normal operating level.
5.
Turn power switch OFF for a final purging of
boiler and steam supply lines.
6.
Steamer is now ready for use.
Cooking Compartment
Certain procedures in this section
require electrical test or measurements while power is
applied to the machine. Exercise extreme caution at
all times. If test points are not easily accessible,
disconnect power and follow lockout / tagout
procedures, attach test equipment and reapply power
to the test.
CONTROLS
For access to compartment controls, remove the right
side compartment panel. Check for failure of the
control circuit in the following order:
1.
Ensure that voltage is reaching control circuit
through compartment pressure switch, when the
main power switch is turned ON.
2.
On electric heat models with a transformer,
check step down transformer for proper
operation.
3.
Check door switch for proper operation.
4.
Check cooking timer function and contact
position. See Schematic All Models -
Compartment Controls.
5.
Check that timer motor operates when
connected to power. If a problem is found in
timer, replace it, do not take timer apart.
6.
Check wiring for damaged insulation / short
circuit.
7.
Check that all connections and terminals are
securely fastened.
8.
Check that all connections are made according
to compartment control wiring diagram.
STEAM SUPPLY SOLENOID
Each cooking compartment is supplied steam by its
own individual steam supply solenoid. These solenoid
valves are a standard type and can be disassembled
for cleaning.
Newer Steamer Models
•
The magnetic coil of the solenoid valve is
removed from the valve by removing the snap
catch at the top.
•
Unions or compression fittings are provided to
allow easy removal of the valve bodies.
•
The solenoid valves must be removed for
disassembly as outlined under FILL AND COLD
WATER SOLENOID VALVES.
Older Steamer Models
VSX BOILER BASE SERIES CONVECTION STEAMERS - SERVICE PROCEDURES
Page 27 of 82
F24627 (0916)
