Danfoss Optyma Plus V3.61 Manuel page 9

Manual
Commissioning
Electrical installations
Main display (after controller
start-up)
Parameter Menu
Quick start of the unit /
Refrigerant change
© Danfoss | DCS (CC) | 2022.12
Controller Installation
• Arrange electrical connections as mentioned in the table below
• Remove temporarily bridge DI1 (terminals 24 - 25 of the controller) to get access to parameters and
values of the controller without starting the condensing unit
Room Thermostat control
without Pump Down function
- Connect room thermostat(24 - 25 i.e. DI1) to these
terminals
- Connect power supply to main switch acc. wiring
diagram, located in front door inner side
• By default the controller's screen displays the Evaporating temp. in deg. C
• Press the lower button to see the condensing temp. in eg. c,
• The display returns to its default screen after few seconds if no key is pressed
• Press upper button for 5 seconds to get access to parameter menu.
• After entering parameters menu "r05" will be shown on display.
• Press upper or lower button to go to other parameters.
• Press middle button to see the value of any parameter. 3 LEDs on controller will start ashing after
this step.
• Press upper or lower button to change the value of that parameter. Press middle button to save the
value. Or the value will be stored after 20 seconds if no key is pressed after changing the value.
• The display returns to its default screen if no key is pressed for 20 seconds.
• Optyma Plus new generation is preset, depending on the compressor model and refrigerant type.
™
In the case of a "multi-refrigerant" compressor, the controller of the condensing unit is Factory
Preset as per above table (see table on page 4). If this factory setting ts for the requirement of your
application, no controller parameter to be changed.
• For refrigerant change go into parameter menu (hold upper button for 5 seconds).
• Select parameter r12 from parameter menu by pressing lower button.
• Select r12 by pressing middle button, change value to ''0'' and save.
• Now select the parameter ''o30'' from parameter menu and set its value as per required refrigerant
to 3 (R134a), 17 (R507), 20 (R407C), 19 (R404A), 21 (R407A), 37 (R407F), 40 (R448A), 41 (R449A), 42
(R452A), 36 (R513A)
• Again select parameter r12 and set its value to 1.
• Condensing unit will start after this step as per logic.
• After 20 seconds the display returns to the evaporation temperature in °C, the new refrigerant and
all relevant parameters are changed
Pump Down control
with factory delivered low pressure transmitter
- Connect power supply to main switch acc. wiring
diagram, located in front door inner side
- Increase the Setting of controller Par. c33 (Pump Down
CUT-OUT value):
e.g. Piston : 0,7bar
e.g. Scroll : 1,7bar
Note: To avoid low pressure alarm, the Setting of c33 and
r23 (for INVERTER units) should be higher than c75
BC08728642552802-001601
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