MIL-HDBK-740 Dishwashing OperationsThis handbook contains information concerning the equipment, supplies, and procedures for the cleaning of tableware in single-tank and multiple-tank dishwashing machines, hand washing in kitchens and hand washing in the field.

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MIL-HDBK-740

SECTION VII - DISPENSING SYSTEMS FOR USE WITH LIQUID SUPPLIES A.        Central Liquid System (Remote Type)

1.  Operation. - The central liquid system (FIGURE 43 is recommended for use on high capacity flight type (rackless) dishwashing machines.  The system consists of the control unit, detergent dispensing unit and rinse additive injector all within one main control panel or box, and subpanels containing a failure alarm to indicate when the concentration of detergent

in the wash water is not as preset, when the system is not operating due to

mechanical

containers

from their dispensing

failure, or when the liquid supplies have been depleted and the require changing.

The liquid supplies are pumped or drawn through plastic tubing original packaging container into the dishwasher through the units. The liquid supplies can be stored in an area on the floor

above or below the dishwashing machine or on the same floor as far as 20

feet from the dishwashing machine.

The dishwashine machine contains an electronic sensor (probe) as is used with powdered detergent systems, that senses the detergent con- centration of the wash water solution and relays the information to the control box or panel by a connecting wire.  If the wash solution is below the desired concentration,the dispensing system activates as a result of the signal and releases the dishwashing compound into the wash tank as necessary to maintain the proper detergent concentration.

The rinse injector portion of the system is connected to the final rinse line within the dishwasher.  When the system contains subpanels, lights and bells indicate when the detergent or rinse additive drums require changing and also indicate when the system shuts down due to mechanical failure. This surveillance console can be placed anywhere in the mess area or mess supervisor's office for continual supervisory surveillance of the operating condition of the dishwashing dispensing equipment.

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