MP2000 AIR CONDITIONERS

Sistema di controllo a microprocessore per condizionatori d'aria • Air conditioners microprocessor control system

PRESSOSTATI DI TIPO ON/OFF PER ALTA E BASSA PRESSIONE - PS3

I dispositivi sono posizionati in prossimità del compressore e sono collegati ai collettori di alta e bassa pressione. Essi trovano applicazione nel controllo della pressione del refri- gerante secondo la tipologia dello strumento:

-Pressostato di alta pressione automatico per il controllo on/off della pressione di condensazione. Viene utilizza- to per comandare i ventilatori del condensatore.

-Pressostato di bassa pressione automatico. Viene utiliz- zato per il controllo della bassa pressione.

-Pressostato di alta pressione automatico. Viene utilizza- to per il controllo dell'alta pressione.

-Pressostato di sicurezza per alta pressione a riarmo manuale. Viene utilizzato per il controllo del limite mas- simo di pressione.

ON/OFF TYPE HIGH AND LOW PRESSURE SWITCHES - PS3

These devices are placed close to the compressor and they are connected to the high and low pressure collector. They have been designed to control the refrigerant pressure according to device type:

-Automatic high pressure switch for on/off condensing pressure control. It is used for condenser fans control.

-Automatic low pressure switch. It is used for the low pressure control.

-Automatic high pressure switch. It is used for the high pressure control.

-Safety high pressure switch with manual reset. It is used for the high pressure maximum limit control.

80

1

2

3

4

 

 

48

 

 

 

 

Fig.109

37

1

P

4

2

+

1.Pulsante di reset (se previsto).

2.Vite di taratura.

3.Raccordo di pressione 1/4 SAE per valvola Schrader.

4.Connettore elettrico DIN 43650.

FUNZIONI

Tramite un contatto in deviazione libero da tensione viene segnalato lo stato di funzionamento.

Lo strumento devia il contatto da 1-2 a 1-4 in caso di aumento della pressione oppure da 1-4 a 1-2 in caso di diminuzione di pressione.

DATI TECNICI

230Vac ±15%

Tensione di alimentazione

Protezione

IP65

Potenza commutabile

3A - 250Vac (AC15)

Campo di lavoro

632 bar - alta pressione

 

-0,66 bar - bassa pressione

Pressione prova

36 bar - alta pressione

 

25 bar - bassa pressione

1.Reset button (if scheduled).

2.Adjusting screw.

3.1/4 SAE pressure connection for Schrader valve.

4.DIN 43650 electric connector.

FUNCTIONS

Through a deviating voltage free contact the working status is signalling.

The device switching from 1-2 to 1-4 on rising pressure and from 1-4 to 1-2 on falling pressure.

TECHNICAL DATA

230Vac ±15%

Supply voltage

Protection

IP65

Switching power

3A - 250Vac (AC15)

Working range

632 bar - high pressure

 

-0,66 bar - low pressure

Proof pressure

36 bar - high pressure

 

25 bar - low pressure

RC GROUP - 149_ItEn.0102

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Dell MP2000 Pressostati DI Tipo ON/OFF PER Alta E Bassa Pressione PS3, ON/OFF Type High and LOW Pressure Switches PS3

MP2000 specifications

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