PROBE, DIXELL NTC DEFROST & FAN RELAY W/ 8' BLACK
The defrost mechanism in a refrigerator heats the cooling element (evaporator coil) for a short period of time and melts the frost that has formed on it. The resulting water drains through a duct at the back of the unit. Defrosting is controlled by an electric or electronic timer: For every 6, 8, 10, 12 or 24 hours of compressor operation it turns on a defrost heater for 15 minutes to half an hour.
A defrost thermostat opens the heater circuit when the evaporator temperature rises above a preset temperature, 40°F (5°C) or more, thereby preventing excessive heating of the freezer compartment. The defrost timer is such that either the compressor or the defrost heater is on, but not both at the same time.
Fans are used across a wide variety of restaurant equipment to create airflow and dissipate heat. A fan consists of a rotating arrangement of vanes or blades which act upon the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner. Usually, it is contained within some form of housing or case. This may direct the airflow or increase safety by preventing objects from contacting the fan blades.
There are many types of probes used in restaurant equipment for the measurement of temperature, humidity, liquid level, ice level, product or ingredient levels and other critical operating limits and control points (HACCP). A probe is a small device, especially an electrode, used for measuring, testing, or sensing and obtaining information. Probes are commonly thin and oblong, and may be flexible. They provide data output to other components to control operation of the equipment.
A relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. The switch may have any number of contacts in multiple contact forms, such as to make contacts, break contacts, or combinations thereof. Relays are used where it is necessary to control a circuit by an independent low-power signal, or where several circuits must be controlled by one signal.
Randell’s exclusive commercial refrigeration design elements ensure consistent food quality and safety, reduce wear, and make cleaning and maintenance quick and simple. For more than 35 years, Randell has been the professional standard in commercial refrigeration equipment across the country. Designed to take on the toughest cooling challenges, Randell offers a range of innovative solutions for the ever-changing foodservice industry, from their patented FX Series precision refrigeration line to their assortment of prep table solutions, refrigerated chef stands, blast chillers and more.
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