Danfoss AK-RC 111 User guide

User Guide

Optyma™ control

AK-RC 111 single phase

User Guide | Optyma™ control AK-RC 111 single phase

Contents

1.0 Introduction ...................................................................................................................................................................3

1.1 General ...................................................................................................................................................................3

1.2 Product ID codes ................................................................................................................................................3

1.3 Overall dimension ..............................................................................................................................................3

1.4 Identiﬁcation data ..............................................................................................................................................3

2.0 Installation .....................................................................................................................................................................4

2.1 Important information for the installer ......................................................................................................4

2.2 Standard assembly kit ......................................................................................................................................4

2.3 Installing the unit ...............................................................................................................................................4

3.0 Technical characteristics ..........................................................................................................................................6

4.0 Parameter programming .........................................................................................................................................7

4.1 Control panel .......................................................................................................................................................7

4.2 Front keypad ........................................................................................................................................................7

4.3 LED display ...........................................................................................................................................................7

4.4 General ...................................................................................................................................................................8

4.5 Key to symbols ....................................................................................................................................................8

4.6 Setting 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 level) ......................................................................................................9

4.11 Switching on the AK-RC 111 electronic controller ..............................................................................11

4.12 Cold/hot activation/deactivation conditions ........................................................................................11

4.13 Manual defrosting activation/deactivation ........................................................................................... 11

4.14 Defrost with heater and temperature control ......................................................................................12

4.15 Hot gas defrosting ..........................................................................................................................................12

4.16 Pump down function ..................................................................................................................................... 12

4.17 Password function ..........................................................................................................................................12

5.0 Optional kit ................................................................................................................................................................. 12

5.1 Net conﬁguration with modbus-RTU protocol.....................................................................................12

6.0 Troubleshooting .......................................................................................................................................................13

7.0 Appendices .................................................................................................................................................................. 14

7.1 AK-RC 111 wiring diagram ........................................................................................................................... 14

7.2 Part List................................................................................................................................................................14

8.0 Ordering .......................................................................................................................................................................15

2 | BC309238530328en-000101 © Danfoss | DCS (vt) | 2020.03

User Guide | Optyma™ control AK-RC 111 single phase

1.0 Introduction

1.1 General

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.

Applications:

• Complete management of single-phase static or ventilated refrigeration systems up to 2 HP, with oﬀ-cycle or electrical defrosting and with

• Control of single-phase evaporator unit only with refrigerant solenoid enable signal or remote condensing unit enable signal.

direct or pump-down compressor stop.

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.

• 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.

1.2 Product ID codes

1.3 Overall dimension

1.4 Identiﬁcation data

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)

180 mm

96 mm

263 mm

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

Type: AK-RC 111 No: 080Z3220 OPTYMA™ Control

Power supply: 230VAC

MADE IN ITALY

• Power supply

• Rated current

S/N: 080R0100 Date: 09/01/18

• IP protection rating

User Guide | Optyma™ control AK-RC 111 single phase

2.0 Installation

2.1 Important information for the installer

2.2 Standard assembly kit

2.3 Installing the unit

1. Install the device in places where the protection rating is observed and try not to damage the box when drilling holes for wire/ pipe seats.

2. Do not use multi-polar cables in which there are wires connected to inductive/power loads or signalling wires (e.g. probes/sensors and digital inputs).

3. Do not ﬁt power supply wiring and signal wiring (probes/sensors and digital inputs) in

5. Fit a general protection fuse upstream from the electronic controller.

6. All wiring must be of a cross-section suitable for relevant power levels.

7. When it is necessary to make a probe/sensor extension, the wires must have a crosssection of at least 1mm2. Probes extension or shortening could alter their factory calibration; therefore to check and calibrate the probes through an external thermometer.

the same raceways or ducts.

4. Minimise the length of connector wires so that wiring does not twist into a spiral shape as this could have negative eﬀects on 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. Raise the transparent cover that shields the magneto-thermal cut-out switch and remove the screw cover on the right-hand side.

Fig 2. Undo the 4 ﬁxing screws at the front of the box.

Fig 3. To close the magnetothermic circuit breaker transparent protection.

Fig 4. Open the front of the box, lift it and slide the two hinges out as far as they will go.

User Guide | Optyma™ control AK-RC 111 single phase

Fig 5. Press on the sides of the hinges to remove them from their seats and so remove the front panel completely.

Fig 7. Hook the frontal panel back up to the lower part of the box by inserting the two hinges in their seats and, bending them, rotate downwards 180° to gain access to the electronic board.

Fig 6. Use the three existing holes to ﬁx the box back panel to the wall: use three screws of a length suitable for the thickness of the wall to which the panel will be attached. Fit a rubber washer (supplied) between each screw and the box backing.

Note: Make all the electrical connections as illustrated in the diagram for the corresponding model (see relative table in appendices). To make electrical connections reliably and maintain the protection rating, use appropriate cable glands and pipepresses to ensure a good seal. It is advisable to distribute the passage of the conductors inside the panel as far as possible, in particular to keep the power leads away from the cables of the signal. Use clips to hold wires in place.

Fig 8. Close the front panel, making sure that all the wires are inside the box and that the box seal sits in its seat properly. Tighten the front panel using the 4 screws. Power up the panel and carry out thorough reading/ programming of all the parameters.

Note: Be careful not to over-tighten the closure screws as this could warp the box and compromise proper operation of the membrane-type keypad. Install short-circuit overload safety devices on all the power cables connected to the AK-RC 111 so as to prevent damage to the device. Work and/or maintenance must ONLY be carried out on the unit after disconnecting the panel from the power supply and from any inductive/power loads: doing so allows the worker to do his job safely.

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