The ZN Closed-Loop Heat Pump Dehydrator is an efficient machine where the internal air is fully recycled during the drying process.

Here’s how it works and what makes it so beneficial:

The hot, moist air is passed through a heat pump system. This system cools the air, condensing and removing the moisture, then reheats the now dry air and sends it back into the drying chamber. This cycle continues until the product is dry.

By constantly reusing the heat, this system is extremely energy-efficient, often saving over 50% more energy than open-loop systems. Because the moisture is condensed and collected internally, it requires no external exhaust vent and can be placed anywhere with an electrical outlet, giving you more flexibility for installation. It also doesn’t vent hot, humid air, which helps maintain stable indoor humidity and temperature, making it a great choice for indoor use.

Heat Absorption (Evaporation): The evaporator acts like a “heat sponge,” pulling warmth from the air, which makes the refrigerant evaporate into a low-temperature, low-pressure gas.

Compression & Heating: The compressor then “squeezes” this gas, making it high-temperature and high-pressure.

Heat Release (Condensation): The condenser releases this heat, warming the drying chamber’s air. This hot air then circulates over your chilies, efficiently removing moisture.

Expansion & Cooling: The refrigerant goes through an expansion valve, dropping in pressure and cooling back into a liquid, ready to start the cycle again.

Humidity Control: A specialized dehumidification system removes moisture, keeping the drying chamber perfectly dry.