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User Guide 

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 Optyma™ control AK-RC 111 single phase

© Danfoss | DCS (vt) | 2020.03

BC309238530328en-000101 | 3

1.0 Introduction

1.1 General

1.2  Product ID codes

1.3  Overall dimension

Main characteristics:
•   Cold room temperature displaying and 

regulation with decimal point.

•   Evaporator temperature with decimal point 

displaying from parameter.

•   Plant control activation/deactivation.
•   Plant alarms signaling (probe error, minimum 

and maximum temperature alarm, compressor 

protection, door alarm).

•   LED indicators and large display illustrate 

system status.

•   User-friendly  keypad.
•   Evaporator fans management.
•   Manual and automatic defrost (static, through 

heaters, through heaters with temperature 

control, through cycle reversal).

•   Direct or pump-down management and 

control of condensing unit up to 2HP.

Applications:
•   Complete management of single-phase static 

or ventilated refrigeration systems up to 2 HP, 

with off-cycle or electrical defrosting and with 

direct or pump-down compressor stop.

•   Cold room light activation through key on the 

panel or through door-switch.

•   Direct control of compressor, defrosting 

elements, evaporator fans, room light with 

outputs directly connectable to the various 

units.

•   Air recirculation management.
•   2 auxiliary relays with parameter-configured.
•  Integrated RS-485 Modbus connection 

for Danfoss System Manager or standard           

Modbus-RTU network

•   Emergency operation in the event of a faulty 

probe environment.

•   Smart defrost (energy saving).
•   Reduced set (night set) from digital input.
•   Can be configured for hot or cold applications.
•   Configurable digital inputs.

•   Control of single-phase evaporator unit only 

with refrigerant solenoid enable signal or 

remote condensing unit enable signal.

Description:

The AK-RC 111 is a new control panel for cold rooms with a single-phase compressor up to 2HP, 

specially designed to provide the user with safety, protection, control and ease of installation.

It allows the user to control all the components on a refrigerating system: compressor, evaporator fans, 

defrosting elements, room light and thermostat-holder demisting element.

Controls and manages compressor, defrosting elements, evaporator fans and room light.

2 Aux configurable relays

Differential magnetothermic circuit breaker 16A

Id=300 mA (Id=30 mA on request)

263 mm

96 mm

180 mm

1.4  Identification data

The unit described in this manual has an ID plate on the side showing all the relevant identification 

data:
•  Name of Manufacturer
•  Code of electrical board
•  Serial number
•  Date
•  Power supply
•  Rated current
•  IP protection rating

Type: AK-RC 111

No: 080Z3220

OPTYMA™ Control

Power supply: 230VAC

MADE IN ITALY

S/N: 080R0100

Date: 09/01/18

Summary of Contents for AK-RC 111

Page 1: ...User Guide Optyma control AK RC 111 single phase...

Page 2: ...ing and displaying the set points 8 4 7 Level 1 programming user level 8 4 8 List of Level 1 variables user level 8 4 9 Level 2 programming installer level 9 4 10 List of Level 2 variables installer l...

Page 3: ...iliary relays with parameter configured Integrated RS 485 Modbus connection for Danfoss System Manager or standard Modbus RTU network Emergency operation in the event of a faulty probe environment Sma...

Page 4: ...n the electronics For the purposes of assembly and use the electronic AK RC 111 control unit comes with 3 seals to be fitted between the fixing screws and the box back panel 1 user s manual Fig 1 Rais...

Page 5: ...e panel and carry out thorough reading programming of all the parameters Note Make all the electrical connections as illustrated in the diagram for the corresponding model see relative table in append...

Page 6: ...nstalled relay Card output characterstics Note Compressor Relay 30A AC1 10 A 250 V AC3 2HP 100000 cicli The sum of contemporary absorptions of these outputs has not to exceed 16 A Defrost Relay 30A AC...

Page 7: ...Cold room temperature parameters 7 Up Mute buzzer alarm 2 Stand by flashes on stand by outputs are deactivated 8 Room light flashes if door switch activated 9 Cold indicates activation of compressor 1...

Page 8: ...T key together with the or key When configuration values have been set you can exit the menu by pressing the or keys simultaneously for a few seconds until the cold room temperature reappears 5 The ne...

Page 9: ...d working for the F6 time If activation time coincides with the defrosting time end of defrosting is awaited 0 240 min 0 function not activated 0 min F7 Evaporator fans duration for air recirculation...

Page 10: ...he temperature value read by the evaporator sensor is higher than this value 45 99 C 99 C Fd Fst differential 1 10 C 2 C LSE Minimum value attributable to setpoint 45 HSE 1 C 45 C HSE Maximum value at...

Page 11: ...econd level programming not permitted 3 PA Password see P1 for the type of protection 0 999 0 not active 0 reL Release software indicates software version 2 read only 4 11 Switching on the AK RC 111 e...

Page 12: ...must allow opening of the cycle inversion solenoid valve and closure of the liquid solenoid valve For capillary systems without thermostat valve it is only necessary to control the cycle inversion so...

Page 13: ...room alarm Reset the alarm input inside the cold room Ec Compressor protection tripped e g thermal protection or max pressure switch All outputs except the alarm one where applicable are deactivated...

Page 14: ...front opening hinge 5 Box closure screws 6 Board fixing screws 7 Magneto thermal cut out power breaker 8 CPU board 9 Polycarbonate screw cover 10 Terminal for earth connections N F d d 1 2 3 4 5 6 7...

Page 15: ...User Guide Optyma control AK RC 111 single phase Danfoss DCS vt 2020 03 BC309238530328en 000101 15 8 0 Ordering Type Code no OPTYMATM Control single phase 2 HP including two sensors 080Z3220...

Page 16: ...oss reserves the right to alter its products without notice This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary eady...

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