Walk-In Cooler Temperature Controls

**Walk-In Cooler Temperature Controls**
	*C450CCU Digital Electronic Controller* The C450CCU is a highly accurate digital controller for walk-in coolers and freezers, and for large refrigerated display cases. An application-specific component of PENN's System 450™, it combines temperature, defrost and fan control, making it an affordable and easy-to-use alternative to electromechanical controls. In addition, the C450CCU can be used in conjunction with System 450™ power and expansion modules to build a variety of custom commercial refrigeration control solutions.

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A421 Series

A421 Series electronic temperature controls are single-stage controls with a single-pole, double-throw (SPDT) output relay. Use with single-stage refrigeration or HVAC equipment. A421 controls feature a backlit LCD with adjustable brightness and a three-button touchpad interface that can be set to restrict adjustments. Standard modules have simple on/off settings for heating or cooling, an adjustable anti-short cycle delay, temperature setback, and sensor offset capability. Models are also available with integral power cord, off-cycle defrost, or integral cycle timer.

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MR4 Series

MR4 Series controllers consolidate the functions of temperature control, digital temperature readout, and defrost cycle management for hot gas or electric defrost. These microprocessor-based controls are easy to program and read. They’re available as panel mount or DIN rail mount, with remote mounting of the display unit.

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A99B Series

A99B Series temperature sensors are passive positive temperature coefficient (PTC) sensors. Accessories support a variety of mounting configurations. Applications include temperature sensing for freezers and coolers, as well as defrost termination sensing, space and return air temperature sensing, and condenser fan cycling

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