Warewasher idling system and method
First Claim
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1. A warewash machine for washing wares, comprising:
- a chamber for receiving the wares, the chamber having at least one spray zone;
a spray system in the spray zone for spraying liquid onto the wares for cleaning;
a tank for capturing sprayed liquid that falls within the spray zone, the tank including a primary recirculation path for delivering liquid from the tank to the spray system, and a secondary recirculation path for delivering water out of the tank and back into the tank, without spraying within the spray zone, in order to promote mixing within the tank,a pump system for controlling flow along both the primary recirculation path and the secondary recirculation path; and
a controller operatively connected for controlling operation of the pump system, where the controller is configured such that, during a machine idling operation, the pump system is selectively operated to produce flow along the secondary recirculation path for mixing of water within the tank, and flow along the primary recirculation path is stopped.
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Abstract
A warewash machine for washing wares includes a chamber for receiving wares, the chamber having at least one spray zone. A spray system is provided in the spray zone for spraying liquid onto wares for cleaning. A tank captures sprayed liquid that falls within the spray zone. The tank includes a primary recirculation path for delivering liquid from the tank to the spray system, and a secondary recirculation path for delivering water out of the tank and back into the tank, without spraying within the spray zone, in order promote mixing within the tank.
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Citations
17 Claims
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1. A warewash machine for washing wares, comprising:
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a chamber for receiving the wares, the chamber having at least one spray zone; a spray system in the spray zone for spraying liquid onto the wares for cleaning; a tank for capturing sprayed liquid that falls within the spray zone, the tank including a primary recirculation path for delivering liquid from the tank to the spray system, and a secondary recirculation path for delivering water out of the tank and back into the tank, without spraying within the spray zone, in order to promote mixing within the tank, a pump system for controlling flow along both the primary recirculation path and the secondary recirculation path; and a controller operatively connected for controlling operation of the pump system, where the controller is configured such that, during a machine idling operation, the pump system is selectively operated to produce flow along the secondary recirculation path for mixing of water within the tank, and flow along the primary recirculation path is stopped. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A warewash machine comprising:
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a chamber for receiving wares to be cleaned, the chamber having at least one spray zone and a liquid collection tank; a primary recirculation system for delivering liquid from the collection tank to a spray system for spraying liquid in the spray zone; a secondary recirculation system for delivering liquid out of the collection tank along a path and then back into the collection tank for mixing liquid within the tank without passage of the liquid through the spray system or any other spray nozzles; and a controller configured to operate the secondary recirculation system during machine idling as needed to maintain tank liquid temperature, while flow through the primary recirculation system is maintained OFF. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification