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
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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
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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.
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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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User Guide | Optyma™ control AK-RC 111 single phase
3.0 Technical characteristics
Power supply
Voltage 230 V~ ± 10% 50/60 Hz
Max power (only electronics) ~ 7 VA
Rated current (with all loads connected) 16 A
Climatic conditions
Working temperature -5 – 50 °C
Storage temperature -10 – 70 °C
Relative ambient humidity Lower than 90% Hr
General characteristics
Type of sensors that can be connected NTC 10K 1%
Resolution 0.1 °C
Sensor read precision ± 0.5 °C
Read range -45 – 99 °C
Output characteristics
Description Installed relay Card output characterstics Note
Compressor (Relay 30A AC1)
Defrost (Relay 30A AC1) 16A 250 V~ (AC1)
Fans (Relay 16A AC1) 2.7 A 250 V~ (AC3)
Room light (Relay 16A AC1) 16 A 250 V~ (AC1)
Aux 1 (free voltage contact) (Relay 5A AC1) 5(3) A 250 V~
Aux 2 (free voltage contact) (Relay 5A AC1) 5(3) A 250 V~
General electrical protection
Dimension characteristics
Dimensions 18.0 cm x 9.6 cm x 26.3 cm (HxPxL)
Insulation and mechanical characteristics
Box protection rating IP65
Box material ABS self-extinguishing
Type of insulation Class II
10 A 250 V~ (AC3) (2HP)
(100000 cicli)
Differential magnetothermic circuit breaker 16A
Id=300 mA
(Id=30 mA on request)
Disconnecting power 4.5 kA
The sum of contemporary
absorptions of these
outputs has not to exceed
16 A
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User Guide | Optyma™ control AK-RC 111 single phase
4.0 Parameter
programming
4.1 Control panel
116
2
3
4.2 Front keypad
4.3 LED display
487 9 10 11 12 13 14 15
1
2
3
4
5
6
7
8
Auxiliary relay control
(controls the relays manual if parameter AU1/AU2 = 2/-2)
Up/Mute buzzer alarm
Stand by (if the system shuts down the LED flashes)
Room temperature Setting
Down/Manual defrost
Room light
Cold room temperature / parameters
Stand-by (flashes on stand-by, outputs are deactivated)
5
6
9
10
11
12
13
14
15
16
Room light (flashes if door switch activated)
Cold (indicates activation of compressor)
Fans
Defrosting
Auxiliary (indicates AUX relay calling if AU1/AU2=+/-2 or +/-3)
Alarm/warning
Decimal point (flashing in night mode)
Hot mode (resistance call signaling)
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User Guide | Optyma™ control AK-RC 111 single phase
4.4 General
4.5 Key to symbols
4.6 Setting and displaying the
set points
4.7 Level 1 programming
(user level)
To enhance safety and simplify the operator’s work, the AK-RC 111 has two programming levels; the
first level (Level 1) is used to configure the frequently-modified SETPOINT parameters. The second
programming level (Level 2) is for general parameter programming of the various controller work
modes.
It is not possible to access the Level 2 programming directly from Level 1: you must exit the
programming mode first.
For purposes of practicality the following symbols are used:
() the UP key is used to increase values and mute the alarm.
() the DOWN key is used to decrease values and force defrosting.
1. Press the SET key to display the current SETPOINT (temperature).
2. Hold down the SET key and press the () or () keys to modify the SETPOINT.
Release the SET key to return to cold room temperature display: the new setting will be saved
automatically.
To gain access to the Level 1 configuration menu proceed as follows:
1. Press the () and () keys simultaneously and keep them pressed for a few seconds until the first
programming variable appears on the display.
2. Release the () and () keys.
3. Select the variable to be modified using the () or () key.
4. When the variable has been selected it is possible:
• to display the setting by pressing SET key.
• to modify the setting by pressing the SET 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 new settings are saved automatically when you exit the configuration menu.
4.8 List of Level 1 variables
(user level)
Variables Meaning Value Default
r0 Temperature difference compared to main SETPOINT 0.2 – 10 °C 2 °C
d0 Defrost interval (hours)
If d0 = 0 cyclical defrosts Off
d2 End-of-defrost setpoint
Defrost is not executed if the temperature read by the defrost
sensor is greater than d2.
(If the sensor is faulty defrost is stopped on time set by the d3
parameter)
d3 Max defrost duration (minutes) 1 – 240 min 25 min
d7 Drip duration (minutes)
At the end of defrost the compressor and fans remain at standstill
for time d7, the defrost LED on the front panel flashes.
F5 Fan pause after defrost (minutes)
Allows fans to be kept at standstill for a time F5 after dripping. This
time begins at the end of dripping. If no dripping has been set the
fan pause starts directly at the end of defrost.
A1 Minimum temperature alarm
Allows user to define a minimum temperature for the room being
refrigerated. Below value A1 an alarm trips: the alarm LED flashes,
displayed temperature flashes and the buzzer sounds to indicate
the problem.
A2 Maximum temperature alarm
Allows user to define a maximum temperature for the room being
refrigerated. Above value A2 an alarm trips: the alarm LED flashes,
displayed temperature flashes and the buzzer sounds to indicate
the problem.
tEu Evaporator sensor temperature display
(displays nothing if dE =1)
0 – 24 hours 4 hours
-35 – 45 °C 15 °C
0 – 10 min 0 min
0 – 10 min 0 min
-45 – (A2-1) °C -45 °C
(A1+1) – 99 °C 99 °C
evaporator
temperature
read only
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User Guide | Optyma™ control AK-RC 111 single phase
4.9 Level 2 programming
(installer level)
4.10 List of Level 2 variables
(installer level)
To access the second programming level press the UP () and DOWN () keys and the LIGHT key
simultaneously for a few seconds.
When the first programming variable appears the system automatically goes to stand-by.
1. Select the variable to be modified by pressing the UP () and DOWN () keys.
When the parameter has been selected it is possible to:
2. View the setting by pressing the SET key.
3. Modify the setting by holding the SET key down and pressing the () or () key.
4. When configuration settings have been completed you can exit the menu by pressing the () and
() keys simultaneously and keeping them pressed until the room temperature reappears.
5. Changes are saved automatically when you exit the configuration menu.
6. Press the STAND-BY key to enable electronic control.
Variables Meaning Value Default
F3 Fan status with compressor off 0 = Fans run continuously
F4 Fan pause during defrost 0 = Fans run during defrost
F6 Evaporator fans activation for air recirculation.
The fans activate for a time defined by F7 if they have
not started working for the F6 time. If activation time
coincides with the defrosting time, end of defrosting
is awaited.
F7 Evaporator fans duration for air recirculation.
Fans working time for F6
dE Sensor presence
If the evaporator sensor is disabled defrosts are
carried out cyclically with period d0: defrosting ends
when an external device trips and closes the remote
defrost contact or when time d3 expires.
d1 Defrost type, cycle inversion (hot gas) or with heater
elements
dPo Defrost at Power On 0 = disabled
dSE Smart defrost 0 = disabled
dSt Smart defrost Setpoint (if dSE=1)
The counting of the time between the defrost is
incremented only if the compressor is ON and the
evaporator temperature is less than dSt.
dFd Display viewing during Defrost 0 = current temperature
Ad
Modbus Network address 0 – 247 0
Bdr Modbus baudrate 0 = 300 baud
Prt Modbus parity check 0 = none
Ald Minimum and maximum temperature
signalling and alarm display delay
C1 Minimum time between shutdown and subsequent
switching on of the compressor.
CAL
Cold room sensor value correction -10 – 10 °C 0 °C
1 = Fans only run when
compressor is working
2 = Fans disabled
1 = Fans do not run during
defrost
0 – 240 min
0 = (function not activated)
0 – 240 sec 10 sec
0 = evaporator sensor present
1 = no evaporator sensor
0 = heating element
1 = hot gas
2 = heater with
temperature control
1 = defrost at power-on
(if possible)
1 = enabled
-30 – 30 °C 1 °C
1 = temperature at the
start of the defrost
2 = “DEF”
1 = 600 baud
2 = 1200 baud
3 = 2400 baud
4 = 4800 baud
5 = 9600 baud
6 = 14400 baud
7 = 19200 baud
8 = 38400 baud
1 = even
2 = odd
0 – 240 min 120 min
0 – 15 min 0 min
1
1
0 min
0
0
0
0
1
8
1
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User Guide | Optyma™ control AK-RC 111 single phase
CE1 Duration of compressor ON time in the case of
faulty ambient probe
(emergency mode).
If CE1=0 the emergency mode in the presence of
error E0 remains disabled, the compressor remains
off and defrosting is prevented in order to conserve
the remaining cold.
CE2 Duration of compressor OFF time in the case of
faulty ambient probe (emergency mode).
doC Compressor safety time for door switch:
when the door is opened the evaporator fans shut
down and the compressor will continue working for
time doC, after which it will shut down.
tdo Compressor restart time after door opening. when
the door is opened and after tdo time, it’s setted back
the normal functioning giving door open alarm (Ed)
If the door switch is closed and the light stays on for
a longer time than tdo light cell alarm is signaled
(E9). With tdo=0 the parameter is disabled.
Fst FAN shutdown TEMPERATURE
The fans will stop if the temperature value read by
the evaporator sensor is higher than this value.
Fd Fst differential 1 – 10 °C 2 °C
LSE Minimum value attributable to setpoint. -45 – (HSE-1) °C -45 °C
HSE Maximum value attributable to setpoint. (LSE+1) – 99 °C 99 °C
AU1 Auxiliary/alarm relay 1 control -6 (NC) = relay de-energised
AU2 Auxiliary/alarm relay 2 control (like AU1 ) 5
StA Temperature setting for auxiliary relay -45 – 99 °C 0 °C
nSC Correction factor for the SET button during night
operation (energy saving)
(with In1 or In2 = 8 or -8)
During night operation the control set is:
Set Control = Set + nSC
In night mode decimal point flashes.
0 – 240 min
0 = disabled
5 – 240 min 5 min
0 – 5 min 0 min
0 – 240 min
0 = disabled
-45 – 99 °C 99 °C
during stand-by
-5 (NC) = Contact for casing
element control (AUX
relay closed with
compressor output
inactive).
-4 (NC) = pump down function
(NC, see CHAP 5.16)
-3 (NC) = automatic auxiliary
relay managed by StA
temp. setting with 2°C
differential (NC)
-2 (NC) = manual auxiliary relay
controlled via AUX key
(NC)
-1 (NC) = alarm relay (NC)
0 = relay deactivated
1 (NO) = alarm relay (NO)
2 (NO) =manual auxiliary relay
controlled via AUX key
(NO)
3 (NO) = automatic auxiliary
relay managed by StA
temp. setting with 2°C
differential (NO)
4 (NO) = pump down function
(NO, see CHAP 5.16)
5 (NO) = free voltage contact for
condensing unit (AUX
relay and compressor
relay in parallel)
6 (NO) = relay excited during
stand-by
-20 – 20 °C 0 °C
0 min
0 min
-1
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In1 INP-1 input setting
In2 INP-2 input setting (like In1) 1
bEE Buzzer enable 0 = disabled
mOd Thermostat functioning mode 0 = Cold function
P1 Password type of protection
(active when PA is not equal 0)
PA Password
(see P1 for the type of protection)
reL Release software indicates software version 2
8 = Night mode digital input
(energy saving, N.O.)
7 = Stop defrosting remotely (N.O.)
(reads rising edge of impulse)
6 = Start defrosting remotely (N.O.)
(reads rising edge of impulse)
5 = Stand-by remotely (N.O.) (In
order to indicate Stand-By
mode, the display shows ‘In5’
alternating with the current
view)
4 = Pump-down pressure switch
(N.O.)
3 = Man-in-room alarm (N.O.)
2 = Compressor protection (N.O.)
1 = Door switch (N.O.)
0 = disabled
-1 = Door switch (N.C.)
-2 = Compressor protection (N.C.)
-3 = Man-in-room alarm (N.C.)
-4 = Pump-down pressure switch
(N.C.)
-5 = Stand-by remotely (N.C.) (In
order to indicate Stand-By
mode, the display shows ‘In5’
alternating with the current
view)
-6 = Start defrosting remotely (N.C.)
(reads falling edge of impulse)
-7 = Stop defrosting remotely (N.C.)
(reads falling edge of impulse)
-8 = Night mode digital input
(energy saving, N.C.)
1 = enabled
1 = Hot function
(in this mode defrosting and fan
disable Fst are excluded)
0 = only display set point
1 = display set point, AUX,
light access
2 = access in programming
not permitted
3 = access in second level
programming not permitted
0...999
0 = not active
(read only)
2
1
0
3
0
4.11 Switching on the AK-RC
111 electronic controller
4.12 Cold/hot activation/
deactivation conditions
After wiring the electronic controller correctly, power up at 230 V AC; the display panel will
immediately emit a beep and all the LEDs will come on simultaneously for a few seconds.
In cold mode (mOd=0), the AK-RC 111 controller activates the compressor when cold room
temperature exceeds setting + differential (r0); it deactivates the compressor when cold room
temperature is lower than the setting.
If Pump-Down function is selected (parameter AU1/AU2 = 4/-4), see chapter 4.16 for compressor
activation/deactivation conditions.
In hot mode (mOd=1), the AK-RC 111 controller activates the heat output (COMPR output) when cold
room temperature drops below setting-differential (r0); it deactivates the heat output (COMPR output)
when cold room temperature is higher than the setting.
4.13 Manual defrosting
activation/deactivation
To defrost just press the dedicated key (see section 5.2) to activate the elements relay. Defrosting will
not take place if the end-of-defrost temperature setting (d2) is lower than the temperature detected
by the evaporator sensor. Defrosting ends when the end-of-defrost temperature (d2) or maximum
defrost time (d3) is reached, or due to forced manual defrost termination (end of defrost button or
digital input).
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User Guide | Optyma™ control AK-RC 111 single phase
4.14 Defrost with heater and
temperature control
4.15 Hot gas defrosting
4.16 Pump down function
4.17 Password function
5.0 Modbus connection
5.1 Net configuration with
modbus-RTU protocol
Set the parameter d1=2 for the management of heater defrost by time with temperature control.
During the defrost the output is activated when the evaporator’s temperatures are lower than d2.
Defrost stops after d3 minutes. It allows energy saving and a better defrost process.
Set parameter d1=1 to defrost in cycle inversion mode.
The compressor relay and defrost relay are activated throughout the defrost phase.
To ensure proper control of the system the installer must use the defrost output: this 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
solenoid valve via the defrost relay control.
Pump down function is activated when parameter AU1/AU2 = 4 / -4.
Connect pump down pressostat on the digital input configured as pump down (In1 or In2 = 4 / -4).
The compressor is directly controlled by pressostat. Connect evaporator solenoid valve on the AUX1
(or AUX2) relay. The solenoid is controlled directly by thermostat.
When parameter PA is setting with value different to 0 the protection function is activated.
See parameter P1 for the different protection.
When PA is setting the protection start after two minutes of inactivity. On display appear 000. With up/
down modify the number, with set key confirm it.
Use universal number 100 if you don’t remember the password.
For RS-485 connections with Modbus-RTU protocol follow the scheme below.
AK- RC 111
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6.0 Troubleshooting In the event of any anomalies of the AK-RC 111, it notifies the operator by means of the alarm codes
displayed on the display and an audible signal emitted by a buzzer inside the control panel. The EL
and EH temperature alarms remain visible even after their return (alarm icon lights on) until their
acknowledgment (by pressing the key). If an alarm condition occurs, one of the following messages
will be displayed on the display:
Alarm code Possible cause Solution
E0 Cold room temperature sensor not working properly • Check that cold room temperature
E1 Defrost sensor not working properly
(In this case defrosts will last time d3)
E2 Eeprom alarm
An EEPROM memory alarm has been detected
(All outputs except the alarm one are deactivated)
E8 Man in cold room alarm • Reset the alarm input inside the
Ec Compressor protection tripped
(e.g. thermal protection or max pressure switch)
(All outputs except the alarm one – where applicable –
are deactivated)
Ed Open door Alarm.
When the door is opened and after tdo time, it’s setted
back the normal functioning giving door open alarm
(Ed).
E9 Cell light alarm.
The light of the cell has been on for a time greater than
tdo.
EH Maximum temperature alarm.
The temperature inside the cold room has exceeded
the max. temperature alarm setting (see variables A2,
user programming level)
EL Minimum temperature alarm.
The temperature inside the cold room has exceeded
the min. temperature alarm setting (see variables A1,
user programming level).
sensor is working properly
• If the problem persists, replace the
sensor
• Check that defrost sensor is
working properly
• If the problems persists, replace the
sensor
• Switch unit off and back on
cold room
• Check that compressor is working
properly
• Check compressor absorption
• If the problem persists, contact the
technical assistance service
• Check door switch status
• Check door switch connections
• If the problem persists contact the
technical assistance service
• Turn off the light
• Check that the compressor is
working properly.
• Sensor not reading temperature
properly or compressor start/stop
control not working.
• Check that the compressor is
working properly.
• Sensor not reading temperature
properly or compressor start/stop
control not working.
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User Guide | Optyma™ control AK-RC 111 single phase
7.0 Appendices
7.1 AK-RC 111 wiring diagram
Common dig. inputs
Common probes
Digital input 2
Digital input 1
Ambient probe
Defrost probe
MODBUS A+
MODBUS B-
Power
Supply
230 V AC
Defrost Fans Compr. Aux1/All.
Aux2 Light
7.2 Part List
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16 17 20 21 18 19
/d /d
F
Common
N
enable
Condensing
unit
Electric
switchboard
Key
Ref. Description
1. Box rear in Abs
2. Box front in Abs
3. Front cover in transparent polycarbonate
4. Box 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
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User Guide | Optyma™ control AK-RC 111 single phase
8.0 Ordering
Type
OPTYMATM Control single-phase (2 HP) including two sensors 080Z3220
Code no.
© Danfoss | DCS (vt) | 2020.03 BC309238530328en-000101 | 15
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