MP2000 AIR CONDITIONERS

Software per condizionatori d'aria • EPROM CZX.... • Software for air conditioners

LOGICA DI CONTROLLO DELLA PRES- SIONE DI CONDENSAZIONE

Il sistema MP 2000 controlla la pressione di condensazione utilizzando un sensore posto sulla mandata gas dell’unità (se previsto nel condizionatore).

I valori indicati si riferiscono ai Set di fabbrica, essi possono essere modificati a secondo delle esigenze dell’impianto, dopo aver inserito la password.

CONDENSING PRESSURE CONTROL LOGIC

The MP 2000 system controls the condensing pressure through a sensor located on the gas delivery of the unit (if provided in the conditioner).

The indicated values refer to the factory settings and may be modified, according to plant requirements, after insert- ing the password.

zP2max

 

(V) 10

 

 

zY1 (10V)

 

 

 

 

 

 

 

 

 

5

zY1

 

 

 

 

 

3

 

 

 

 

 

 

0

 

 

 

 

 

xP2min

1400

1700

2000

2200

2500

z (kPa)

zP2s

 

 

 

 

 

 

 

 

 

 

 

 

 

zP2

z OFF

z ON

zH.Alarm

 

 

 

 

Fig.53

 

 

 

I set sono i seguenti:

zP2s

Control condensing Pressure set

 

(1400kPa)

 

Valore di pressione condensazione.

 

A questo valore di pressione il segnale del-

 

l’uscita proporzionale zY1 corrisponde al

 

valore minimo (zP2min.).

 

Aumentando la pressione il valore dell’usci-

 

ta proporzionale aumenta fino al valore

 

massimo (zP2max.).

zP2

Control condensing Pressure Differential

 

(300kPa)

 

Banda proporzionale di pressione corrispon-

 

dente al massimo valore del segnale.

zP2min.

Condensing out Min value (3V)

 

Valore minimo del segnale di pressione cor-

 

rispondente a zP2s. Il valore è impostabile

 

tra 0 e 5V.

zP2max.

Condensing out Max value (10V)

 

Valore massimo del segnale impostabile tra

 

5 e 10V.

z ON

Control condensing Pressure ON

 

(2200kPa)

 

Valore di pressione dove l’uscita proporzio-

 

nale viene attivata al valore 10Volts in situa-

 

zione di compressore spento (ciò avviene

 

per evitare di raggiungere pericolosi valori di

 

pressione nel condensatore).

 

Se il compressore è in funzione il valore

 

dell’uscita proporzionale commuta da

 

zP2max. a 10Volts.

z OFF

Control condensing Pressure OFF

 

(2000kPa)

 

Valore di pressione dove l’uscita proporzio-

90

 

The sets are the following:

zP2s

Control condensing Pressure set

 

(1400kPa)

 

Condensing pressure value.

 

At this pressure value, the proportional out-

 

put signal zY1 corresponds to the minimum

 

value (zP2min.).

 

When increasing pressure, the proportional

 

output value increases up to the maximum

 

value (zP2max.).

zP2

Control Condensing Pressure Differen-

 

tial (300kPa)

 

Pressure proportional band corresponding

 

to the maximum signal value.

zP2min.

Condensing out min. value (3V)

 

Minimum pressure signal value correspond-

 

ing to zP2s. The value is settable from 0 to

 

5V.

zP2max.

Condensing out max. value (10V)

 

Maximum pressure signal value. The value

 

is settable from 5 to 10V.

z ON

Control condensing Pressure ON

 

(2200kPa)

 

Pressure value for which the proportional

 

output is activated at 10 Volts when the

 

compressor is OFF (in order to avoid reach-

 

ing dangerous pressure values in the con-

 

denser).

 

If the compressor is running, the propor-

 

tional output value switches from zP2max.

 

to 10 Volts.

z OFF

Control condensing Pressure OFF

 

(2000kPa)

 

Pressure value for which the proportional

 

RC GROUP - 149_ItEn.0102

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Dell MP2000 manual Logica DI Controllo Della PRES- Sione DI Condensazione, Condensing Pressure Control Logic

MP2000 specifications

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