Movincool CM 25 Manuel de service télécharger pdf (Page 35)

Operation Section

5.8 Basic Operation

• The following components are controlled based on settings and signals from the WMC or MWT

in accordance with signals from various sensors: compressor, evaporator fan motor, condenser

fan motor, electronic expansion valve, internal drain pump.

5.9 Compressor Operation

(1) Startup speed control

• The compressor operates at 40 rps for 120

seconds after cooling operation begins. Once

the refrigeration cycle stabilizes, the inverter

controls compressor speed.

< NOTE >

While under startup speed control, the unit continues to operate to protect the refrigerant system,

even if cooling operations are suspended by the WMC or MWT.

When startup speed control is completed and cooling operation is suspended within 120 seconds,

the "COOL" display flashes for the WMC.

(2) Delay control

• After the power supply is turned on, or after the compressor is stopped, compressor startup is

delayed for a fixed time period to prevent overloading the compressor.

Specifications:

- Time Delay: 120 sec.

5.10 Electronic Expansion Valve Operation

• The electronic expansion valve automatically controls its valve position to optimize the

refrigerant cycle.

I003169

120 sec

Compressor Speed (rps)

Start of

Compressor

Operation

Transition to

Normal Control

Time

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 88 89

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Movincool CM 25 Manuel de service Page 35