Bottom Load Water Dispenser with Door

304‑Grade Stainless Steel Tank & Anti‑Dry‑Burn System

The hot water circuit relies on a 304 food‑grade stainless steel tank whose smooth interior reduces scale adhesion and does not interact with the water. A 550 W immersion heater raises the temperature to 85–95 °C, delivering up to 5 liters per hour. Two independent protection devices monitor tank status: a mechanical float switch that disconnects power if the water level falls below the safe minimum, and an electronic thermostat that cuts the heating circuit when the tank exceeds the upper temperature limit. This dual arrangement prevents dry‑burning even if one sensor fails, and it extends the service life of the heating element under continuous duty.

90W Compressor‑Based Cooling

The cold water circuit uses a 90 W hermetic compressor coupled to a fin‑and‑tube condenser. Cold water is held at 5–10 °C; the compressor cycles on and off according to a thermostat inside the cold reservoir. Unlike thermoelectric cooling, the compressor maintains its target temperature even when the room is warm. The hot and cold circuits are hydraulically and electrically separate—dispensing cold water does not reduce the available hot water, and vice versa. A third, unheated faucet delivers water at ambient temperature.

Concealed Lower Cabinet & Tool‑Free Bottle Replacement

The water bottle sits inside the bottom cabinet, hidden behind a hinged door. A small diaphragm pump lifts water to the upper reservoirs; the pump runs only during refill cycles and is audible for a few seconds. Changing a bottle requires opening the door, sliding the empty bottle out along the base recess, and sliding a full one in—no overhead lifting is involved. The cabinet fits standard 3‑ and 5‑gallon round bottles with a 55 mm neck.

Faucet Design & Child Safety Lock

Each of the three faucets is a push‑type valve. The hot water faucet incorporates a mechanical child safety lock: users must press a small release tab while pressing the faucet button. Without the tab, hot water does not flow. The cold and warm faucets operate with a single push. A removable drip tray sits below all three spouts and can be emptied and rinsed without tools.