Design a chiller/freezer for vending machine

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Job Description

I'd like to invite proficient HVAC designers to design a chiller/ freezer system for a vending machine. The chiller is placed inside the enclosure. Whenever, an order is made, a small hatch door of the chiller is to open and the goods will be pushed out.The selected contractor will have to provide complete design and perhaps travel to Malaysia in order to put together everything and demonstrate functionality. It is preferred if you already reside in Malaysia.