AC wall unit installation

Soldato
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Who here has an AC unit installed on to a wall?

has it been worth it in the summer?

any hints or tips for getting this installed? Guessing i will need someone in who knows what they’re doing
 
Soldato
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I had 3 rooms installed last April - Master bedroom and 2 smaller rooms below on the middle floor. All internal units connect to one unit outside. It was one of the best years recently for having it installed. I remember a lot of 30c days/nights here in Cambridge. Not that it bothered me with the AC on at 21c. It was so worth it.

I used a company called Sub-Cool Fm, could not fault them.
 
Don
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We have a split unit for main bedroom, absolutely invaluable

seen some very cheap prices quoted on FB recently, not sure if they are straight up
 
Soldato
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Thanks it is difficult to predict how the hot weather will be this year
It its nething like 2018 it’ll be worth the ac

On average in the SE we probably
Get 20/30 sticky nights

are daikin any good?

Ive been quoted about 1.5k for a daikin 2.5kw system that includes installation and a pump.

seems about reasonable to me but i do wonder whether id want that external extractor thing sitting on my existing extension or if possible i could get that external extractor right on the top of my loft room where the wall is built on the side of the house. (another thread)

what do u all think
 
Soldato
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I think the price sounds ok for one room. I paid 4k for 3 rooms (all 2.5kw units) although my install was a little tricky and required a second day.

Is the pump you mention a condensate pump? If so is there any way you can do without it? Apparently they are noisy when they activate. I was due to have one in my master bedroom but luckily on the wall I finally decided the unit would go on it had a cupboard behind it that had a drain pipe available that the condense line could be plumbed in to.
 
Soldato
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What does the pump actually do?

So my main bedroom on the wall i want the unit only has loft access
Ie no external wall there

i think the installer said something along the lines of an external wall helps
But for the installation in the bedroom we got the loft only.

When u say plumb line what do u mean? Access to water or id imagine some type of drainage

see im wondering whether its worth waiting till the loft gets done because surely then there will be a good chance to link that drainage up with the bathroom drainage pipe? I don’t know ‍♂️

When u say plumb line what do u mean? Access to water or id imagine some type of drainage

see im wondering whether its worth waiting till the loft gets done because surely then there will be a good chance to link that drainage up with the bathroom drainage pipe? I don’t know ‍♂️

basically that’ll negate the need of the pump for the bedroom ac?
 
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RJC

RJC

Don
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The pipe will be for the condensate, If they can plumb this into an existing waste pipe or run external this will negate the need for the condensate pump.
 
Soldato
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Ah ok i see

so i could get away without a pump if it somehow gets hooked up to the waste for the bathroom.

otherwise some type of pump will be in my loft space
 
Soldato
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so i could get away without a pump if it somehow gets hooked up to the waste for the bathroom.

otherwise some type of pump will be in my loft space

Yeah. Basically, if the refrigerant pipes from the AC unit need to go up at any point (i.e in to your loft) then a pump will be needed to push the condensate away. Here is a picture of my master bedroom (in the loft of my house - its a town house by design). Ideally it would have been easier for the unit to go on the wall above the headboard of the bed, which is an outside wall and would mean the condense would have naturally ran away due to gravity.

The installer advised not to put it on the external wall as it would be blowing over us in bed, potentially giving us a sore throat. The original suggestion was to put it above my chest of draws but that required a pump as the pipe work would of had to go in to the small loft space above and then out the external wall.

I opted for it's location below as my friend pointed out there might be a drain in my hot water tank cupboard (behind where the AC unit is), and he was right. The hot water tank has a pressure relief valve that is piped in to waste pipe which the AC installer was able to tee in to.

O7o9TYWh.jpg


This is directly behind the AC unit. Within the larger bit of trunking, the copper refrigerant pipes go up in to the loft and out the external wall of my house. The small white plastic pipe that comes out the bottom is the condense line.
AKEmPJ9h.jpg


Close up of where it enters the drain.
zL1CcnZh.jpg


I also have two rooms below my master bedroom at the back of the house where the units are like this (this is my office).Both the window walls did not have enough space to fit the unit (its about 800-900mm wide). The condense for these just go out the side of the house and straight down in the trunking that the refrigerant pipes are in.

It is not ideal have them butted up a wall like this (apparently) but they still work very well. My units are way over spec'd for my little bedrooms and I often just leave both the lower floor bedroom doors open which helps keep the rest of the house cool.

GNrwDJth.jpg


An outside view so you can see what to expect from the trunking. It's not pretty but I don't think it looks too bad.
DRQyZNzh.jpg
 
Soldato
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Thanks mate that explains things much better to me

if im going to build a bathroom in the loft then surely the ac installer could use the bathroom waste pipe for the condensation rather than using a pump in the loft.


Btw do u have a picture of what this pump looks like ooi?
 
Soldato
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Btw the trunking looks nice and neat

is there a reason why that external extractor was not placed right up on the top right hand side of your house?

surely that is a better spot
 
Soldato
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Thanks mate that explains things much better to me

if im going to build a bathroom in the loft then surely the ac installer could use the bathroom waste pipe for the condensation rather than using a pump in the loft.


Btw do u have a picture of what this pump looks like ooi?

It depends where your bathroom will be and what wall your unit will go on but technically yes that could work. Some thing to think about before you go ahead with it all and you will no doubt need to coordinate with the builder and AC installer to make sure it can be done during the build as you might not have access afterwards.

I think this is what the pump was going to be, he quoted £90 so sounds about right. It's an inline pump that would have gone in the trunking that would of had to come out the side of the unit before going up in to the loft (less attractive in the house)
https://www.anchorpumps.com/saniflo...MIvOuq1tPm7gIVCYFQBh0logzvEAQYBiABEgKrb_D_BwE

I was very keen to not have a pump as its something else to fail. One at work failed several times over the years (i've been there a long time) and water runs down the wall and makes a huge mess.

Btw the trunking looks nice and neat

is there a reason why that external extractor was not placed right up on the top right hand side of your house?

surely that is a better spot

Yes it would have been much better and out of site but accessibility would have been a pain each time it needed to be serviced.
 
Soldato
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It depends where your bathroom will be and what wall your unit will go on but technically yes that could work. Some thing to think about before you go ahead with it all and you will no doubt need to coordinate with the builder and AC installer to make sure it can be done during the build as you might not have access afterwards.

I think this is what the pump was going to be, he quoted £90 so sounds about right. It's an inline pump that would have gone in the trunking that would of had to come out the side of the unit before going up in to the loft (less attractive in the house)
https://www.anchorpumps.com/saniflo...MIvOuq1tPm7gIVCYFQBh0logzvEAQYBiABEgKrb_D_BwE

I was very keen to not have a pump as its something else to fail. One at work failed several times over the years (i've been there a long time) and water runs down the wall and makes a huge mess.



Yes it would have been much better and out of site but accessibility would have been a pain each time it needed to be serviced.

good points there
coordination will be the key. It sounds like I am best waiting


you are right about the pump
One more thing to go wrong
Just like 24v drivers on LED lights if i remember correctly.

so i am thinking about putting the extractor in that same position on the top
Yes to get it serviced might be a pain but that’ll be the service guys problem plus that’ll blow warm air out on the hottest days
U wouldn’t feel it being up theee

i just wonder if it being up there could upset neighbours and our council
They will say it is unsightly etc too many moaners around me for my liking
Prob sour grapes
 
Soldato
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i just wonder if it being up there could upset neighbours and our council
They will say it is unsightly etc too many moaners around me for my liking
Prob sour grapes

This is another reason why I did not want it up there as my detached neighbour has a bathroom window opposite which they have open a lot in the summer. The unit is quiet but I didnt want any additional noise being projected in their direction to cause them any upset. Plus you could see the AC unit from the road too which I wanted to avoid.

You are not supposed to have it within 1m from the boundary so I may have to get mine moved in the future, or apply for planning permission etc. If I really had to I would get the unit moved to where my bench is in my garden.
 
Soldato
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This is another reason why I did not want it up there as my detached neighbour has a bathroom window opposite which they have open a lot in the summer. The unit is quiet but I didnt want any additional noise being projected in their direction to cause them any upset. Plus you could see the AC unit from the road too which I wanted to avoid.

You are not supposed to have it within 1m from the boundary so I may have to get mine moved in the future, or apply for planning permission etc. If I really had to I would get the unit moved to where my bench is in my garden.


Ah ok cool
Did not know about the 1m rule

in my case my neighbour does not have a window close to that but obviously it would be visible from the road.
 
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