Danfoss Optyma Plus Series Manual

Also see for Optyma Plus INVERTER Series: Instructions

Contents

Danfoss Optyma Plus Series Manual Manual pdf 10 page image

10BC08728642552802-001001ManualPump Down - Function • A “pump-down” limit can be activated with the setting of parameter c33• To avoid unwanted low pressure alarms, the setting ot this parameter should be higher than the lowpressure cut-out limit parameter c75, … e.g. below0Low pressure switch: Cut-InScroll and Recip: 0,5barDifferential: Parameter c76Scroll and Recip: 0,7barPump down function: Param. c33Inverter: 2.7 bar Scroll: 1,7barRecip: 0,7barDifferential: Parameter c76Scroll and Recip: 0,7barLow pressure switch: Cut-OutScroll and Recip: -0,3barLow pressure cut-out limit:Parameter c75Scroll: 1,4bar Recip: 0,4barIn some areas it may be necessary to reduce noise level during night time. This is possible with the“Day / Night” function of the Optyma™ Plus controller which limits the fan speed for all units and thecompressor speed for INVERTER units. For activation follow the next steps …• Activate the parameter menu (press upper button min. 5 sec.)• Select parameter “r13” Night Offset (temperature offset related to condensing temperature setpointfor daytime which is parameter “r29”)• Push middle button and set the desired value, e.g. 005 for 5 Kelvin• Confirm the value with a short press on the middle button. Do the same with the next parameterswhich are required for the “Day / Night” - function …• Select and set parameter “t17” Day start (hours), e.g. 006 for 06:00 a.m.• Select and set parameter “t18” Night start (hours), e.g. 022 for 22:00 p.m.• Select and set parameter “t07” Clock setting (hours), e.g. 011 for 11:xx a.m.• Select and set parameter “t08” Clock setting (minutes), e.g. 035 for 11:35 a.m.• Select and set parameter “t45” Clock setting (date), e.g. 010 for 10.xx.xx• Select and set parameter “t46” Clock setting (month), e.g. 004 for 10.04.xx• Select and set parameter “t47” Clock setting (year), e.g. 012 for 10.04.12• All values will be stored with the middle button or after 20s without pressing any buttonDay/Night - Function• The controller displays the evaporation temperature in °C (main screen)• It will show the readout of the condensing temperature in °C after pressing short the lower button• Pressing short the middle button, the setpoint of the temperature difference between condensingand ambient temperature appears which can be directly modified here by pressing the upper orlower button.• The display returns to main screen after a few seconds without any action on the buttonsMain Display(Evaporating and CondensingTemperature, Setpoint Tempera-ture Difference)Service and Maintenance• Operation conditions of the condensing unitcan be displayed in the parameter menuby selecting parameters “U” … below someexamplesu01 Condensing Pressureu10 Status of DI1 (room thermostat)u21 Superheatu37 Status of DI2 (frequency converter alarm)u52 Compressor CapacityU22 Condensing TemperatureU23 Evaporation PressureU24 Evaporation TemperatureU25 Ambient TemperatureU26 Discharge TemperatureU27 Suction TemperatureU44 Voltage on A01U56 Voltage on A02Operating ParametersController Installation