MARMON ANGELO PO COMBISTAR FX, Technical Manual

Page: 117 / 178

Copyright by Servizio Clienti ANGELO PO Spa
117
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Product load. The pump sends the chemicals into the empty tank, this phase takes a
few minutes. The total amount of chemicals is less than the tank capacity.
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Distribution. After stopping the pump, the water solenoid valve opens for a few
seconds. The water pressure (1.5 bar nominal Max 2 bar) passes through the tank and
mixed with the product, carries it into the chamber through the appropriate sprinklers.
•
Emptying the tank. After finishing the distribution, the tank, still full of water and residual
chemical, is flushed through the solenoid valve until the next stage.
Rinsing is accomplished by operating the solenoid water for several minutes. The water
circulates through the tank and the dispensing circuit, and finally is distributed in the
chamber through the sprinklers.
The circuit is also fitted the following safety:
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Water pressure switch: it is downstream of the solenoid water and detects the
presence of pressure in all the phases in which the water valve is open (or supply
rinsing detergent / sanitizer).
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Level sensor: it is a float sensor located inside the tank. It checks the chemicals
loading and the emptying phases of the tank. During loading
, if the level sensor doesn’t
switch, after a predetermined time, the display shows alarm (E21 or E22). During the
emptying phase of the tank, after a fixed time the dis
play, if the level sensor doesn’t
switch, shows an alarm (alarm E24).
NOTE:
- Since version 2.xx each time you switch on the oven, it runs for 5 seconds the dosing
pumps, then it opens for 0.5 seconds the rinsing solenoid valve and then it empties the
tank for 20 seconds.