Paragon

Paragon built its name manufacturing defrost timers and time switches for commercial refrigeration equipment, becoming a long-standing reference brand for automatic defrost control. The Paragon product line is now produced under Robertshaw, alongside the related Ranco brand of refrigeration controls.

Decades of use in walk-in coolers, freezers, and reach-in refrigeration units have made Paragon timers a familiar replacement part for refrigeration technicians working across many different equipment brands.

Product Lines

Paragon's catalog includes mechanical and electronic defrost timers, 24-hour time switches, and flush tank timers used to schedule defrost cycles and other timed functions on commercial refrigeration equipment. The line also includes auto-voltage defrost timers built to cover multiple voltage-specific applications in a single part, along with replacement controls for electric defrost heaters, hot gas defrost, and compressor off-cycle defrost setups.

Why Contractors Specify Paragon

Refrigeration technicians reach for Paragon timers when a defrost control fails because a single auto-voltage model can often cover several different original voltage-specific timers, simplifying the replacement decision on a service call. Familiarity also plays a role, since Paragon defrost controls have been a common original part across many commercial refrigeration brands for years.

How to Choose Paragon Products

Replacing a defrost timer starts with identifying the original timer's voltage, defrost cycle length, and the number and configuration of contacts it controls. The type of defrost method in use, whether electric heater, hot gas, or compressor off-cycle, also needs to match the replacement timer's design, and an auto-voltage model can be a practical choice when the original voltage rating is unclear or when standardizing the timer parts carried for service calls across several refrigeration units.

Frequently Asked Questions

What does a defrost timer actually control?

A defrost timer controls when a refrigeration unit's evaporator coil goes into a defrost cycle and for how long, switching the system between normal cooling operation and defrost mode on a programmed schedule.

Can one Paragon timer replace several different original timers?

Auto-voltage Paragon defrost timers are designed to cover a range of voltage-specific applications in a single part, which can replace multiple separate voltage-rated mechanical timers that would otherwise each need to be matched individually.

What is the difference between electric, hot gas, and compressor off-cycle defrost?

Electric defrost uses a heating element to melt frost off the coil, hot gas defrost routes warm refrigerant gas through the coil to do the same job, and compressor off-cycle defrost simply relies on stopping the compressor long enough for the coil to warm above freezing. Each method needs a timer control configured for its specific switching requirements.

How long does a typical defrost timer last before it needs replacement?

Mechanical timers wear over years of continuous cycling, and a unit running excessively long or short defrost cycles, or failing to switch at all, is usually a sign the timer motor or contacts are due for replacement.

Are Paragon timers compatible with older refrigeration equipment?

Many Paragon timer models are designed as direct or near-direct replacements for older commercial refrigeration controls, since defrost timer mounting patterns and contact configurations have stayed fairly consistent across many equipment generations.