Liquid receiver

[NoNickName]

NoNickName, he wants a chiller which gives no problems

Well, charging 300Kg + of refrigerant is not the way to go for "no problems".

[Andy]

Well, charging 300Kg + of refrigerant is not the way to go for "no problems".

300litres would not be 300kg with the given density it would be 360kg aproximately.

This would not necessarily be a large charge, I have just sized the receiver for what I would call a small 404a blast freezer the net volume is about 700 litres.

Receiver volume is based on 2/3 of the evaporator volume + the liquid line, NOT the condenser volume, the volume in the condenser is just that, pumping down the system will not change the volume in the condenser or the condensate line.


Better an oversized receiver with less charge in it rather than a small receiver over charged.

Kind Regards. Andy

[US Iceman]

Receiver volume is based on 2/3 of the evaporator volume + the liquid line, NOT the condenser volume, the volume in the condenser is just that, pumping down the system will not change the volume in the condenser or the condensate line.

If you are using head pressure controls to flood an air-cooled condenser, the volume of the condenser does matter.

You could use the entire volume of the condenser (to calculate the mass of course) if the condenser is operating in very cold weather.

The liquid has to go somewhere in the summer.

[Andy]

If you are using head pressure controls to flood an air-cooled condenser, the volume of the condenser does matter.

You could use the entire volume of the condenser (to calculate the mass of course) if the condenser is operating in very cold weather.

The liquid has to go somewhere in the summer.

Never thought of that one

Again a very good reason for not undersizing the receiver. Generally I would use inverters on the condenser fan rather than back large amounts of liquid into the condenser, reduces the refrigerant charge.

Kind Regards. Andy