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Microchiller 2

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Information on the display

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Information on the display

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General features

The principle functions are as follows: · Control of the ambient air temperature

· Fan condenser speed control

· Serial line connection for supervision

· Programmable automatic restart after re-establishment of power supply

· Remote start-up/shut down of the unit

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Description and functions of the buttons

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Description and functions of the buttons

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Description and functions of the buttons

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Example (changing parameters)

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Alarms descriptions

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Alarms descriptions

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Alarms descriptions

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Menu structure

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Parameters list

Type: A = Analogic variable I = Integer variableD = Digital variable

Symbols Parameter and Description Min Max Default / Modify M.U. Type STD SE E2P

Probe Type B1Probe Type B2Probe Type B3Probe Type B4Probe Type B5 (expansion)Probe Type B6 (expansion)Probe Type B7 (expansion)Probe Type B8 (expansion)Minimum value voltage inputMaximum value voltage input

Pressure minimun valuePressure maximum valueB1 Probe CalibrationB2 Probe CalibrationB3 Probe CalibrationB4 Probe CalibrationB5 Probe Calibration

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Parameters list

B6 Probe CalibrationB7 Probe CalibrationB8 Probe CalibrationDigital filterInput limitingMeasure unitAntifrost alarm set point / Outlet Limit

Antifrost alarm differential / low room temp

Antifrost alarm bypass time / low room temp during winter switch onAntifrost reheat element SetAntifrost reheat element differential / dirty filtersReheat element probeAntifrost alarm limit set

Reheat element set during heatingReheat element differential during heatingAntifrost automatic switch onReheat element 2 set during heatingDelta T set for dirty filtersProbe selection to see on displayB1 read valueB2 read valueB3 read valueB4 read value

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B5 read valueB6 read valueB7 read value

B8 read valueEvaporator temperature Driver 1Evaporator pressure Driver 1Superheating driver 1Superheating driver 2Valve position driver 1

Evaporator temperature Driver 2Evaporator pressure Driver 2Superheating Driver 2Saturation temperature driver 2Valve position driver 2Temperature probe, external exchanger outlet c1Temperature probe, external exchanger outlet c2Terminal probe

Parameters list

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Parameters list

Minimum time switching onMinimum time switching offDelay between 2 switching on of the sameCompressorSwitching on delay of 2 compressorsSwitching off delay of 2 compressorsSwitching on delayCompressor switching on delay afterPump /fan switching onfan switching off delay aftercompressor switching offMaximum time functioning tandem compressor

Hourcounter compressor 1Hourcounter compressor 2Hourcounter compressor 3Hourcounter compressor 4Functioning hourcounter threesholdEvaporator pump / fan1 hourcounterCondenser pump / fan 2 hourcounter

Minimum time between 2 pumps switching onMinimum time pump functioningAntifrost functioning

Antifrost mode

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Fan outlet enableFans functioning mode

Minimum voltage threeshold for triac

Maximum voltage threeshold for triacMinimum pressure speed in summer mode

Temperature set speed in summer mode

Max pressure speed in summer mode

Max speed differential in summer mode

Fan Switch off pressure

Fan switch off differential

Parameters list

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Unit model

Number of ventilating circuits Numbers of evaporators

Number of compressor each circuit

Outlet fan mode

Parameters list

Digital input Summer/WinterDigital input on/off

Microchiller 2 net configurationTouchpad block

Serial address

Output mode (table)Partialisation logicPump down activation

Pump down minimum pressurePump down maximum pressureAuto tuning activation

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Parameters list

Flow delay after unit start up

Flow delay in normal functioning

Low pressure delay after compressor on

Partialisation of compressor in high low press

Alarms restore

Summer Winter logic

Low pressure alarm with pressure probes

Digital input 1 selection

Digital input 2 selection

Digital input 6 selection

Digital input 7 selectionDigital input 10 selection

Low pressure alarm selectionHigh temperature alarm set

High temp alarm delay after start upHigh pressure alarm set

Low temperature alarm set

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Parameters list

Low temperature alarm set

Summer differentialWinter set point

Winter differential

Compressors rotation

Regulation / compressor use Type

Dead zone differential

Maximum time activation output controlMinimum time activation output controlMaximum time deactivation output control

Minimum time deactivation output controlDifferential deactivation compressors

Summer minimum set

Summer maximum set

Winter minimum set

Winter maximum set

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