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SAFETY PRECAUTION

3-1. ALWAYS OBSERVE FOR SAFETY

Before obtaining access to terminals, all supply circuits must be disconnected.

3-2. CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilising refrigerant R410A

Use new refrigerant pipes.

Make sure that the inside and outside of refrige- rant piping is clean and it has no contamination such as sulfur hazardous for use, oxides, dirt, shaving particles, etc.

In addition, use pipes with specified thickness.

Contamination inside refrigerant piping can cause deterio- ration of refrigerant oil etc.

Store the piping to be used during installation indoors and keep both ends of the piping sealed until just before brazing. (Leave elbow joints, etc. in their packaging.)

If dirt, dust or moisture enters into refrigerant cycle, that can cause deterioration of refrigerant oil or malfunction of com- pressor.

Use ester oil, ether oil or alkylbenzene oil (small amount) as the refrigerant oil applied to flares and flange connections.

If large amount of mineral oil enters, that can cause deterio- ration of refrigerant oil etc.

Do not use refrigerant other than R410A.

If other refrigerant (R22 etc.) is used, chlorine in refrige- rant can cause deterioration of refrigerant oil etc.

Use a vacuum pump with a reverse flow check valve.

Vacuum pump oil may flow back into refrigerant cycle and that can cause deterioration of refrigerant oil etc.

Use the following tools specifically designed for use with R410A refrigerant.

The following tools are necessary to use R410A refrigerant.

 

Tools for R410A

Gauge manifold

 

Flare tool

Charge hose

 

Size adjustment gauge

Gas leak detector

 

Vacuum pump adaptor

Torque wrench

 

Electronic refrigerant

 

 

charging scale

 

 

 

Keep the tools with care.

If dirt, dust or moisture enters into refrigerant cycle, that can cause deterioration of refrigerant oil or malfunction of com- pressor.

Charge refrigerant from liquid phase of gas cylinder.

If the refrigerant is charged from gas phase, composition change may occur in refrigerant and the efficiency will be lowered.

Do not use a charging cylinder.

If a charging cylinder is used, the composition of refrigera- nt will change and the efficiency will be lowered.

Ventilate the room if refrigerant leaks during operation. If refrigerant comes into contact with a flame, poisonous gases will be released.

[1]Cautions for service

(1)Perform service after collecting the refrigerant left in the unit completely.

(2)Do not release refrigerant in the air.

(3)After completing service, charge the cycle with specified amount of refrigerant.

(4)When performing service, install a filter drier simultaneously. Be sure to use a filter drier for new refrigerant.

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Mitsumi electronic PLA-A12AA, PLA-A30AA, PLA-A42AA, PLA-A36AA, PLA-A24AA Safety Precaution, Always Observe for Safety
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PLA-A30AA, PLA-A42AA, PLA-A18AA, PLA-A12AA, PLA-A24AA specifications

Mitsumi Electric, a leading manufacturer in the electronic components industry, offers a diverse range of products tailored to meet various application needs. Among the offerings are the PLA series devices: PLA-A36AA, PLA-A24AA, PLA-A12AA, PLA-A18AA, and PLA-A42AA. These components are renowned for their cutting-edge features, robust technologies, and versatile characteristics, making them essential in modern electronics.

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