2 question

[kefah]

hi every one
i have 2 question
1 - how many screw i need to fit in the plate on the wall for the split type air cond. indoor unit
some people say 4 and other say 8 etc
2- during charging the air conditioner is there any need to flip up ***** cylinder or must keep it without flip
thank you

[stufus]

1 - Enough screws to make sure it stays on the wall.....depends on what the wall is made of....
2 - Depends on the refrigerant being used.......Depends on the cylinder it's in......

Next question

[kefah]

ok for 1 question
in iraq we build bulding walls
from concrete.cement block.bricks
for 2nd question
r22 cylindir

[stufus]

Upright for vapour withdrawal ,flip it over for liquid !(presuming you only have one valve and no dip tube)
R22 can be charged as a vapour as it is not a blend.
Cheers
Stu

[kefah]

thank you
what about 1 question

[stufus]

As many as required !!!!
No one is going to complain about the price of a few screws.
But they will complain if the A/C unit falls off the wall and lands on their kid.
Use common sense .
Most manufacturers provide screws for mounting the plate ,so count them ,and use it as a guide line.
Cheers
Stu

[kefah]

thank you pal
you helped me

[stufus]

No problem.
Keep it up.
Cheers
Stu

[install monkey]

i hung a daikin 71 cassette off 6 tech screws holding 41 21 strut to a duct- then i fitted 41 41 strut with rawl bolts then droprods to transfer the load-as for the elusive question no 1- 1 fixing in the centre of the bracket to allow for exact centring- then 2 at the top corners to keep the top lip of the brcket tight to the wall, then 2 in the lower corners for where it clips onto the indoor unit- some manufacturers show on the installation instructions where they want the fixings, as long as the bracket is firmly fixed to the wall,typically the indoor only weighs around 7kg-unless its a 10kw wall mount that are upto 30kg!!-i remember getting called to an ac unit hanging off the wall- turned up and low and behold an imi cu80 was at 40deg only held on with its bottom fixings- had to re secure it whilst still piped up!

[stufus]

Where's that Daikin unit???
So I can avoid walking under it.
Cheers
Stu

[kefah]

thank you again
the split unit mark is LG
split type ac 2 ton 24000 btu
so for these indoor plates how many screws i have to fit at least

[install monkey]

still fitting it-dont worry its bombproof!
did an install years ago-had 2 cassettes in a bp station- as it was just a corrugated tin cladding roof- no steelwork to fix off and was a rush job- from the drop rods off the cassette had to use standoff brackets for tray -and 4 1 1/4 pozi with washers on each corner- still up 10yr later!!but as the outdoors was mounted straight on the butyl rubber roof they moved a bit in the wind! haha
Where's that Daikin unit???
So I can avoid walking under it.
Cheers
Stu

[paulg88]

some questions on this scare me thinking about them...

[stufus]

​see post #6


thank you again
the split unit mark is lg
split type ac 2 ton 24000 btu
so for these indoor plates how many screws i have to fit at least

[install monkey]

as a rule of thumb id fit 1 screw per 1000btu :p

[MikeHolm]

Umm, how many screws is that per kw...........duh

[jdunc2301]

Just put in as many as you can, there will be holes in the bracket, so just use that as a guide to how many!!

The more the better!

I can't quite understand the problem, unless your buying an exact amount of screws to do this with, in which case just buy a handfull and bung them in!

J

[The Viking]

OK,
True answer... 0 (zero), you don't need any screws at all...

A few years back I were asked to do an install in a "tanked" room, no penetrations through the membrane was allowed.
Pipework down the stairs and wall mounted unit glued on to wall using epoxy resin.
It stayed up for at least 5 years but I haven't been back there for a while so it might have dropped of by now.

:D

.

[stufus]

Either that or health and safety copped it.:D

Cheers
Stu


OK,
True answer... 0 (zero), you don't need any screws at all...

A few years back I were asked to do an install in a "tanked" room, no penetrations through the membrane was allowed.
Pipework down the stairs and wall mounted unit glued on to wall using epoxy resin.
It stayed up for at least 5 years but I haven't been back there for a while so it might have dropped of by now.

:D

.

[install monkey]

thats where overtime comes in handy-wait till they bugger off home and nail it to the wall and get the indoor clipped on- them mitsi m series and fujitsu's are a bugger to get off the wall plate!! haha

OK,
True answer... 0 (zero), you don't need any screws at all...

A few years back I were asked to do an install in a "tanked" room, no penetrations through the membrane was allowed.
Pipework down the stairs and wall mounted unit glued on to wall using epoxy resin.
It stayed up for at least 5 years but I haven't been back there for a while so it might have dropped of by now.

:D

.

[frank]

Why use screws???? http://www.google.co.uk/products/catalog?hl=en&cp=6&gs_id=m&xhr=t&q=gripfill&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&biw=1676&bih=945&wrapid=tljp1335989216183010&um=1&ie=UTF-8&tbm=shop&cid=851360517903907316&sa=X&ei=5pOhT82yNqXT0QWUg_TyCA&sqi=2&ved=0CGIQ8wIwAA#