Sunday, May 5, 2024, 6:53 AM
Site: BUNN Learning Center
Course: BUNN Learning Center (BLC)
Glossary: BUNN Glossary

Timer Board

The timer board is designed to provide the voltage to a specific device in order to energize it. It can energize a relay, inlet solenoid, pump, dump valve or other device for brewing or can energize a motor to grind coffee, to name a few.

ThermoFresh®

BUNN offers a full line of vacuum-insulated servers and brewers that brew directly into these servers that keep coffee at optimal flavor for hours and save on energy consumption and by not requiring warming plates.

Thermoelectric Cooler (Peltier Device)

A thermoelectric cooler (TEC) is a small cooling device that relies on a Peltier junction. Composed of two conductors made of different materials, a Peltier junction acts as a heat pump which can cool or warm when current is passed through it. For example as current passes through one side is hot and the other is cold. This device is used to chill, (approximately 20º from ambient air temperature), but not refrigerate concentrate product.

Thermistor

A thermistor is a temperature sensitive resistor used to monitor temperatures. It changes value as it cools or heats. NTC (Negative Temperature Coefficient) thermistors will decrease in ohms value as it heats, and are commonly used in temperature sensing. PTC (Positive Temperature Coefficient) thermistors increase in ohms value and are generally used in protective circuits by monitoring over current conditions.

Thermal Cutt-Off

Thermal cut off, or sometimes referred to as TCO, is a fuse that acts in the same way as a limit thermostat. If the temperature reaches a certain level the TCO fuse will blow just the same as any other fuse, cutting power to the tank heater. The TCO is also current sensitive.

Switches

Switches are devices designed to allow current/voltage to pass or not to pass, depending on whether it is "open" or "closed". There are many different configurations available to satisfy many different applications. They are as simple as a single pole, single throw (wall switch), to the much more sophisticated "gauge" type switches that have multiple layers and can switch many components off or on at the same time. They come in many different packages as well. Membrane switches are common in touch pads, float switches are reed switches that are activated by magnets, and mechanical switches are sets of contacts.

Static Water Pressure

Static pressure is the measurement of water that is not moving or flowing.

SplashGard®

An exclusive design with a shield next to the funnel handle that deflects hot liquids away from the user’s hand.

Spanner Wrench

Hayes Solenoid Spanner Wrench
The Hayes spanner wrench is used only when rebuilding Hayes style solenoid valves. This tool is used in conjunction with a crescent or open-ended wrench.

Skinner Solenoid Spanner Wrench
The Skinner spanner wrench is used only when rebuilding Skinner style solenoid valves. This tool is used in conjunction with a crescent or open-ended wrench.

Solenoids

A solenoid is a device that acts as an electrified faucet. It consists of a valve body, seat cup/plunger assembly and an electromagnetic coil. When voltage is applied, the coil will draw the iron core plunger away from the valve body and allow water to flow past the seat cup (diaphragm).