Fast learning servisman

[bozicaleksandar]

Hello,Everybody
My name is Aleksandar.I am living in Belgrade-Serbia.
I don't want to bother you about me,just want to help and
expect help.
I have a question, how to charge/recharge R410a?
Does someone know all, step-by-step,procedure to charge or
recharge R410a?Also know ,when unit in deep vacuum,or vacuum,liquid charging can break a tubes.
How charging when is unit (with servise valve)above 5 meters from the floor?Does anyone know?
It is about small unit (charge 2 kg).Split system.
I have all equipment.

Thank you!
P.S.
And if you have any questions about split systems ,I try to help.

[Brian_UK]

Hi, and welcome to the forum.

Charging with R410a is best done to the recommended weight required for the system.

If the weight is unknown then charge by subcooling and superheat.

Yes, charging liquid into a vacuum can fracture tubing. With any refrigerant that should be liquid charged you can either use a liquid charging device or throttle the liquid through your gauge lines.

Once the pressure has risen above 0barg(0psig) then you can open the throttle and let the liquid directly in.

For high access you need to use a scaffold tower or similar.

[bozicaleksandar]

Hi, and welcome to the forum.

Charging with R410a is best done to the recommended weight required for the system.

If the weight is unknown then charge by subcooling and superheat.

Yes, charging liquid into a vacuum can fracture tubing. With any refrigerant that should be liquid charged you can either use a liquid charging device or throttle the liquid through your gauge lines.

Once the pressure has risen above 0barg(0psig) then you can open the throttle and let the liquid directly in.

For high access you need to use a scaffold tower or similar.

Thank you very much,I know this,but I wasn't sure,but now,you help me to understand completly proces.
One more question what is scafford tower?
Thank you again!
Aleksandar.

[bozicaleksandar]

Thank you,Brian_UK.
Please answer me,I have question about Refrigerant
elektric blanket(300 W).
View all my posts!

[bozicaleksandar]

Hi,
Sorry to bother you,I have a question?
Can I use elektric blanket to charge R410a?
I think not, but not sure(because composed refrigerant R410A).
Thank you.

[bozicaleksandar]

Please answer Brian_UK.

[BigJon3475]

Please answer Brian_UK.

relax give them time to answer......

[Brian_UK]

One more question what is scafford tower?

A construction of metal tubes built together to provide a climbing and working framework..

http://www.bpsaccesssolutions.co.uk/...rs-gallery.htm

Hi,
Sorry to bother you,I have a question?
Can I use elektric blanket to charge R410a?
I think not, but not sure(because composed refrigerant R410A).
Thank you.

If you mean a blanket to warm the gas bottle then yes you can but not too hot!

Please answer Brian_UK.

Remember the time zone differences....