Danfoss 084B8080 Optyma Plus Control Unit Instruction Manual

Danfoss 084B8080 Optyma Plus Control Unit

Quick starting procedure
Optyma™ Plus
Control unit (mounted code 084B8080)

Caution
The information contained herein is a summary of the instructions available in the Danfoss documentation.
For further information, please consult the user guide or other documents provided with the condensing unit

Instructions

The upper and lower buttons are used to navigate the menu and change the values, while the central button lets you access the parameters and confirm the value

Step 1 – Removing the DI1 terminal block

• If the condensing unit is powered up, cut off the power supply using the switch.

• Remove the DI1 terminal block.
  This is the external stop start hard wired link for the controller & will stop the compressor from running. You can access the controller by opening the hinged door of the unit & then removing two screws on the cover plate that covers the controller terminals.

• Power the unit back on by turning the switch.

Step 2 – Settings mode

1. Press the upper button for 5 seconds: r05 will appear.

Step 3 – Deactivating the control unit functionalities

1. Use the upper and lower buttons to scroll through the parameters. Select the parameter r12 and press the central button to confirm.
2. Set the value to 0: the control unit is then deactivated. Confirm your selection using the central button.

Step 4 – Selecting the refrigerant

1. Scroll through parameters and select parameter o30, press the central button to confirm.
2. Enter the value corresponding to your refrigerant and confirm your selection using the central button.

Fluid          Parameter

| ****

Fluid         Parameter

---|---
R134a| 3| R513A| 36
R507A| 17| R448A| 40
R404A| 19| R449A| 41
R407A| 21| R452A| 42
R407F| 37|

Step 5 – Set condensing unit type

1. Scroll through parameters and select parameter c33.
2. Set the Pump Down cut-out value. The Average for R513A is 0.9 bar for scroll compressors. This value depends on the type of application and refrigerant. Confirm your selection with the central button.

If you have an OptymaTM Plus INVERTER

1. If you have an OptymaTM Plus INVERTER, set the evaporating pressure setting with parameter r23.
2. This parameter is based on the evaporation temperature (dew point). For example, if the evaporation temperature is -10ºC, set this value to -10.

Step 6 – Activating the control unit functionalities

1. Cut off the power supply using the switch.

2. Connect the terminal block DI1.

3. Power the unit back on via the switch.

4. Press the upper button for 5 seconds: r05 will appear.

5. Use the upper and lower buttons to scroll through the parameters. Select the parameter r12 and press the central button to confirm.

6. Set the value to 1: the control unit is then activated. Confirm your selection using the central button. The condensing unit is ready to start.

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss 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 in specifications already agreed. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

© Danfoss | Produced by DCS | 2019.12

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