AKO D142H231 Installation Instructions

1. Warnings

Failure to follow the manufacturer's instructions may compromise the safety requirements of the appliance. Only use probes supplied by AKO for correct operation. The equipment must be installed in a location protected from vibrations, water, and corrosive gases, where the ambient temperature does not exceed the value specified in the technical data. For accurate readings, the probe should be placed in a location without thermal influences other than the temperature to be measured or controlled. The power supply circuit must be equipped with a disconnect switch of at least 2 A, 230 V, located near the appliance. Cables should enter through the rear and be of type H05VV-F or H05V-K. The cross-section used will depend on current local regulations but must never be less than 1 mm². Cables for connecting relay contacts must have a cross-section of 2.5 mm². For extensions of the NTC probe up to 1,000 m with a minimum 0.5 mm² cable, the maximum deviation will be 0.25 °C (probe extension cable ref. AKO-15586). ATTENTION: Equipment not compatible with AKO-14917 (External communication module) and AKO-14918 (Programming key). The probe and its cable must NEVER be installed in a conduit together with power, control, or supply cables.

2. Installation

Diagrams illustrating the installation of the AKO D142H231 controller are provided.

3. Connections

S1: Probe 1, chamber or cabinet temperature.
S2/DI2: Probe 2, defrost or digital input 2 (Depending on P4).
DI1: Digital input 1.

4. Operation

The display shows the current temperature. Indicators show the status of various relays and modes:

• Display: Shows current temperature.
• Relé FAN active: Indicates the fan relay is active.
• Relé COOL active (PO=0): Indicates the cooling relay is active.
• Relé AUX active: Indicates the auxiliary relay is active.
• Relé RES active (PO=1): Indicates the heating relay is active.
• Modo ECO activo: Indicates ECO mode is active.
• Modo Fast Freezing activo: Indicates Fast Freezing mode is active.
• Modo Stand-by activo: Indicates Stand-by mode is active.
• Luces encendidas (P6=3): Indicates lights are on.
• Relé DEF activo: Indicates the defrost relay is active.

Key Functions:

• ESC / ⏚: Pressing for 5 seconds starts/stops Fast Freezing. In the programming menu, exits the parameter without saving changes, returns to the previous level, or exits programming.
• SET: Pressing for 5 seconds allows changing the setpoint (SP). Pressing for 10 seconds accesses the programming menu. In the programming menu, enters the displayed level or accepts the new value during parameter adjustment.
• ▲: Pressing for 5 seconds starts/stops defrosting. In the programming menu, scrolls through levels or varies parameter values.
• ▼: Pressing for 5 seconds activates Stand-by mode; pressing for 2 seconds returns to normal mode. In Stand-by, the equipment performs no action and only the indicator light is shown on the display. In the programming menu, scrolls through levels or varies parameter values.

4.1 Accessing Setpoint and Programming

Changing the Setpoint (SP): Press SET for 5 seconds, then release. The display shows the current setpoint. Use ▲ or ▼ to adjust the value. Press SET to confirm.

Accessing Programming Menu: Press SET for 10 seconds. The display shows the first parameter (e.g., SP/2.5). Use ▲ or ▼ to navigate through parameters. Press SET to enter a parameter's value. Use ▲ or ▼ to adjust the value, then press SET to confirm and move to the next parameter or level.

5. Commissioning

Upon receiving power, the equipment will start in WIZARD mode (InI flashing). Press ▲ or ▼ to select the most suitable application and press SET. The wizard will configure the equipment parameters according to the chosen application (refer to the default parameters table by application).

• 1: Varied product
• 2: Frozen
• 3: Fruits and vegetables
• 4: Fresh fish
• 5: Soft drinks
• 6: Bottle racks
• 7: Climate
• 8: Heat/Incubators

6. Parameter and Message Table

This section details various parameters, their default values ('Def.'), and their functional descriptions. Parameters marked with '*' are variable depending on the application selected in the wizard or parameter P3.

Parameter Categories:

• SP: Setpoint adjustment (limits depend on probe type).
• C0-C12: Various control and configuration parameters for cooling, defrosting, fans, and alarms.
• d0-d9: Defrosting parameters.
• F0-F5: Fan control parameters.
• A0-A12: Alarm configuration parameters.
• P0-P19: General operation and configuration parameters, including input and output configurations, password access, and display modes.

Messages:

• D: Displays a message on the screen.
• A: Activates the alarm relay (if available).
• E1: Probe 1 failure (open circuit, short circuit, or out-of-range temperature).
• E2: Probe 2 failure (similar conditions as E1).
• dEF: Indicates defrosting is in progress (if d2=2).
• A1: Maximum temperature alarm on probe 1.
• A2: Minimum temperature alarm on probe 1.
• A3: External alarm activated.
• A4: Severe external alarm activated.
• A8: Defrosting alarm due to maximum time.
• A12: Door open alarm.

7. Technical Specifications

• Power Supply: Various models support 120 V~ or 230 V~, with specific VA ratings.
• Input Voltage (MBTS circuits): Maximum 20 V.
• Inputs: 2 NTC/PTC + 1 digital input, or 1 NTC/PTC + 2 digital inputs (depending on P4).
• Relays: COOL (2 CV for AKO-D14123-2, 16 A for others), FAN (6 A), AUX (8 A).
• Number of Relay Operations: 100,000 operations (EN60730-1).
• Probe Types: NTC AKO-149xx / PTC AKO-1558xx.
• Measurement Range: NTC: -50.0 °C to +99.9 °C; PTC: -50.0 °C to +150 °C.
• Resolution: 0.1 °C.
• Working Environment: -10 to 50 °C, <90% humidity.
• Storage Environment: -30 to 70 °C, <90% humidity.
• Front Panel Protection: IP65.
• Mounting: Panel mount with anchors.
• Panel Cutout Dimensions: 71 x 29 mm.
• Frontal Dimensions: 79 x 38 mm.
• Depth: 61 mm.
• Connections: Screw terminals for cables up to 2.5 mm².
• Control Device Classification: Built-in, automatic operation, Type 1.B, for clean environments, software class A, continuous operation. Pollution degree 2 (UNE-EN 60730-1).
• Insulation: Double insulation for power supply, secondary circuit, and relay output.
• Impulse Withstand Voltage: 2500 V.
• Ball Pressure Test Temperature: Accessible parts: 75 °C; Parts positioning active elements: 125 °C.
• EMC Test Voltage and Current: Specified values for different models.
• Radio Interference Suppression Test Current: 270 mA.

WARNING: Default parameters by application type are defined for common applications. Verify that these parameters are suitable for your installation.