Danfoss Instructions AK-CC 550A - 115 V Installation Guide

Summary

This comprehensive technical manual provides detailed instructions for the AK-CC 550A controller, designed for advanced HVAC and refrigeration systems (115 V a.c.). It serves as an essential guide for technicians responsible for installation, commissioning, and maintenance. The document covers all aspects of operation, including electrical connection diagrams, digital/analog input and output configuration, sophisticated data communications (MODBUS, RS 485), adaptive control routines, defrost cycles, and thorough fault troubleshooting codes.

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Instructions AK-CC 550A 115 V

Identification Dimensions

Principle

S2: Insulate sensor Fühler isolieren Capteur isolés Isolér føleren Sensores aislados

AKV info !!

115 V a.c. spole 115 V a.c. coil 115 V a.c. Spule 115 V c.a. Bobine 115 V c.a. Bobina 115 V c.a. Bobine

AK-CC 550A Additional information: English Manual Weitere Information: Deutsches Manual Renseignements supplémentarires: Manuel en français Yderligere information: Dansk Manual

RS8FS... www.danfoss.com

Información adicional: Manual español Informazioni aggiuntive! Manuale in italiano Ytterligare information: Svenska Handbok Aanvullende informatie: Dutch Handleiding

RI8PH302 2016-06

Page Summary Contents For Danfoss Instructions AK-CC 550A - 115 V Installation Guide

Page 1 Instructions AK-CC 550A 115 V Identification Dimensions Principle S2: Insulate sensor Fühler isolieren Capteur isolés Isolér føleren Sensores aislados AKV info !! 115 V a.c. spole 115 V a.c. coil 115 ...

Page 2 The controller is provided with signs from the factory indicating application 1. If you employ another use, signs are provided so that you can mount the relevant one. Werkseitig wird der Regler mit Sc...

Page 3 AK-CC 550A - 115 V Instructions RI8PH302 © Danfoss 2016/06 3

Page 4 Data communication Important All connections to the data communication MODBUS and RS 485 must comply Datenkommunikation with the requirements for data communication cables. See literature: RC8AC. Tran...

Page 5 English Connections Application DO1 DO2 DO3 DO4 DO5 DO6 DI1 DI2 DI3 AI1 AI2 AI3 AI4 AI5 AI6 Overview of outputs and applications. See also electrical diagrams earlier in the instruction suction hotgas...

Page 6 DO1 DO6 Connection of expansion valve type AKV or AKVA. The coil must Light relay be a 115 V a.c. coil. There is connection between terminal 17 and 18 when the light must be on. DO2 Rail heat, Compres...

Page 7 Operation Display Get a good start The values will be shown with three digits, and with a setting you can determine whether the temperature is to be shown in °C or in With the following procedure you ...

Page 8 SW = 1.9x Menu survey Parameter EL-diagram page 2 or 3 Factory Actual Code Min.-value Max.-value setting setting Function Normal operation Temperature (setpoint) - - - -50°C 50°C Thermostat Differenti...

Page 9 Continued Code Min. Max. Fac. Actual Defrost sensor: 0 =Stop on time, 1=S5, 2=S4, 3=Sx d10 SW = 1.2x (Application 1-8 and 10: both S5 and S6. Application 9: S5 and S5B) Pump down delay d16 0 min. 60 m...

Page 10 Continued Code Min. Max. Fac. Actual Input signal on DI2. Function: o37 (0=not used. 1=status on DI2. 2=door function with alarm when open. 3=door alarm when open. 4=defrost start (pulse-signal). 5=ex...

Page 11 Continued Code Min. Max. Fac. Actual Service Temperature measured with S5 sensor u09 Status on DI1 input. on/1=closed u10 Actual defrost time (minutes) u11 Temperature measured with S3 sensor u12 Stat...

Page 12 Fault message Operating status (Measurement) In an error situation the LED’s on the front will flash and the alarm relay will be The controller goes through some regulating situa- Ctrl. state: activat...

Manual Details

Brand	Danfoss
Pages	12
File Size	1.50 MB
Published	June 05, 2026

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Frequently Asked Questions

What power voltage is required for the AK-CC 550A unit?

The unit requires a supply voltage of 115 V a.c., operating at 50/60 Hz.

How are data communication connections handled?

MODBUS and RS 485 connections must comply with specific requirements, and users should refer to the literature RC8AC for details.

What is required if I use this controller for a different application?

If using it for another purpose, mount the appropriate sign from the provided decals.

Can multiple pressure transmitters be connected?

Yes, one signal can be received by up to 10 controllers when connecting via RJ45.