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Thread: Fast learning servisman
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04-10-2007, 05:36 PM #1
Fast learning servisman
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.
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04-10-2007, 11:42 PM #2
Re: Fast learning servisman
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.Brian - Newton Abbot, Devon, UK
Retired March 2015
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05-10-2007, 01:24 PM #3
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05-10-2007, 01:29 PM #4
Re: Fast learning servisman
Thank you,Brian_UK.
Please answer me,I have question about Refrigerant
elektric blanket(300 W).
View all my posts!Last edited by bozicaleksandar; 05-10-2007 at 03:24 PM.
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05-10-2007, 03:11 PM #5
Re: Fast learning servisman
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.
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05-10-2007, 03:25 PM #6
Re: Fast learning servisman
Please answer Brian_UK.
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05-10-2007, 03:34 PM #7
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05-10-2007, 08:26 PM #8
Re: Fast learning servisman
A construction of metal tubes built together to provide a climbing and working framework..
http://www.bpsaccesssolutions.co.uk/...rs-gallery.htm
If you mean a blanket to warm the gas bottle then yes you can but not too hot!
Remember the time zone differences....Brian - Newton Abbot, Devon, UK
Retired March 2015
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