Southbend GCX-2S, Руководство пользователя

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SERVICE INFORMATION
SECTION 6:
STEAM-EX MODEL GCX-2
FLOOR MOUNTED CONVECTION STEAMER
CABINET CONTROL PROBLEMS (Continued)
WATER IS NOT BEING SUPPLIED TO BOILER (Continued)
Unscrew projecting tube from top of valve body and remove internal mechanism together with blade assembly. Next
unscrew both assembly bolts and split brass body of valve removing loose internal parts. Now flush and clean pocket
thoroughly. Reassemble all parts in reverse order of disassembly. Energize valve with 120V power and if valve fails to
close replace coil. Reconnect all plumbing.
BOILER BLOWDOWN SOLENOID VALVE DOES NOT DRAIN
When the appliance is turned OFF the Boiler Slowdown Valve is de-energized and consequently opens and the water,
contained in the Boiler being under pressure, should be blown through this Valve and be noticable visible exhausting out
the appliance Drain. However, if the Blowdown operation appears to function rather sluggishly or not at all then assume
that considerable scalant may be lodged in the drain pipe and/or the Valve. Disconnect Valve from the drain line and
inspect both the Valve and the drain pipe fixed to the Boiler. If considerable scalant or lime build up is apparent then not
only the Valve but also the Boiler and Water Level Control must be thoroughly cleansed. Refer to preceding paragraph on
cleaning procedure of Valve and also Removal of Scalants from Boiler Procedure.
BOILER ACHIEVES PRESSURE SLOWER THAN NORMAL
If the Boiler requires considerably more time than 15 minutes to achieve normal operating pressure (6 to 7 psi), then
assume that heavy build up of scalant has completely coated the interior of the Boiler and Boiler Tubes and consequently
heat transfer is hampered by the insulating effect of the scalant. Unbolt and remove the Handhole Cover Plate and
Gasket assembly. Examine interior of Boiler and if scalant and/or lime build up is apparant follow Removal of Sclants
from Boiler Procedure.
If considerable scalant is evident then both the Boiler Blowdown Solenoid Valve and the Water Level Control must also
be examined.
REMOVAL OF SCALANTS FROM BOILER
Close Manual Blowdown Valve.
If the appliance has an Automatic Blowdown Solenoid Valve, then turn OFF power supply to the appliance and remove
cover from Generator Control Box. Disconnect line splices and supply external 120V power to Blowdown Solenoid Valve
wire leads to energize and close this valve. Turn power supply back on to appliance.
Remove 3/4" pipe plug from Tee plumbed to Safety Relief Valve located at top right side of Boiler.
Continued
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