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Optyma™ Control

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Reduce installation time by up to 60% with Optyma™ Control

The Optyma™ Control AK-RC 251 is designed for safety, protection and ease of installation in walk-in coolers and freezers for both upgrades to existing walk-ins and new installations.

This electronic temperature controller eliminates the need for mechanical thermostats in cooling applications and defrost timers in freezer applications. It controls compressors, solenoid valves, defrost—including a second evaporator defrost—fans, lights and crankcase heaters.

Features and benefits

  • Can improve room efficiency by up to 30%

  • Quick set-up with easy mounting and wiring

  • Includes a weatherproof enclosure

  • Kitted with two NTC sensors (5 ft., 10 ft.)

  • Compatible with commonly available standard 3⁄4 in. fittings to maintain weatherproof rating

Low-GWP walk-ins

When building or upgrading a walk-in cooler or freezer, Danfoss ensures yours reaches high efficiency with low GWP and minimal carbon footprint.

Go inside sustainable walk-ins

Documents

Documents
Type Name Language Valid for Updated Download File type
Operating guide AK-RC 251 (Optyma Control) wiring diagram English Multiple 18 Mar, 2021 3.4 MB .pdf
Brochure Optyma Control cut sheet English Multiple 09 Feb, 2021 1.3 MB .pdf
Installation guide Optyma™ control AK-RC Single Phase mounting kit English Multiple 21 Apr, 2022 507.2 KB .pdf
User guide Temperature controller for walk-in coolers and freezers, type AK-RC 251 Spanish, Castilian Multiple 03 Feb, 2021 4.2 MB .pdf
User guide Temperature controller for walk-in coolers and freezers, type AK-RC 251 English Multiple 03 Feb, 2021 4.1 MB .pdf
Installation guide Temperature controller for walk-in coolers and freezers, Type AK-RC 251 English; Spanish, Castilian Multiple 22 Feb, 2021 2.8 MB .pdf

Videos

Introducing the Optyma™ Control, AK-RC 251 electronic temperature controller

Basic circuitry and wiring of the Optyma™ Control, AK-RC 251 electronic temperature controller

Basic Programming of the Optyma™ Control, AK-RC 251 electronic temperature controller

Navigating extended wizard parameter menu in the Optyma™ AK-RC 251 electronic temperature controller

Software

The truth is Cool(selector®2)

Coolselector®2 features unbiased calculations for the selection of refrigeration and air conditioning components based on the user’s requirements or based on standard operating conditions.

 

Use Coolselector®2 for the technical data you need to get the job done right.

Try Coolselector®2 now

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