Split system aircon question

[Geoff]

I am installing a split system airconditioner, is it normal for the inside unit to have pressure in the pipes? When i went to remove the end caps from these pipes inorder to connect the pipework from the outside unit they are under pressure and 'gas' leaks out as soon as i crack the nut, what is this 'gas'? is it just in there to keep the system at a positive presure and thus prevent any moisture etc entering the system? If not what do i do? these caps have to be removed inorder to connect the pipes between inside and ouside units? Thanks for any help Geoff

[mrcheerful]

it will either be protective gas or it will be vacuum (less likely)

[Ric]

Are you mad? Its freezing!

[Dave Liquorice]

Most aircons will heat as well but from (expensive) 'lectric. A really clever one would be a bidirectional heat pump.

[Geoff]

It isnt a vacuum i can feel the 'gas' leaking out rather than sucking in, what is this gas though can i just let it out and connect up the pipework and then connect up the outdoor unit and vac pump etc. Thanks Geoff

[tony sayer]

Yes we've got one of they in our workshop, it is "supposed" to consume around 1Kw of power to produce 2 odd kW of heat.

Never really checked how efficient it is, as I've no means of doing so.

[:::Jerry::::]

So, it will be summer in (hopefully) about 5 months !

[Mcluma]

Its freon gas, and without it, it will not work,

PS you need somebody to pump it back in and put under pressure, Whic you cannot do yourselve

-- Mcluma

[mrcheerful]

Yep, just let it out, slowly if it is on the pump side of things. It is probably only nitrogen, so is harmless to the environment generally. Don't leave the pipes open long. Vac ASAP

mrcheerful

[Mike]

Judging by Horizon last night it could be anytime between next week and next millenium.

[Andrew Gabriel]

The refrigerant is normally stored in the condensor part (outside half).