1. Import the defrost state from each case controller to the System Manager.

Master Hot Gas Valve

Configuration with AK-IO

and AK-CC550A Case Controllers

Programming Guide

2. Create a calculation for each circuit that is true if any of the case controllers go into defrost.

© Danfoss | DCS (mrb) | 2019.06

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Hot Gas defrost.

5. Link the master defrost calculation to control the physical Master Defrost Relay

which is programmed as a miscellaneous relay.

© Danfoss | DCS (mrb) | 2019.06

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