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#201295 - 05/26/11 01:44 PM how to by pass??  
Niko  Offline
Member
Joined: Aug 2006
Posts: 356
Campbell, CA
I am working with a portable AC unit that needs to keep a small computer room cool.
If the power goes out to the building the AC will shutoff and won't comeback ON automatically.

My question is: can i bypass (jumper) the main ON/OFF switch so once the power turns back ON the AC will do as well.

Or is there a better solution?

The cost of a single central AC just for that room is way too expensive for this small start up company.


Be kind to your neighbor, he knows where you live


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#201297 - 05/26/11 03:33 PM Re: how to by pass?? [Re: Niko]  
LarryC  Offline
Member
Joined: Jul 2004
Posts: 783
Winchester, NH, US
Is the on/off switch a momentary switch? If not, then leaving the switch in the on position should restart the unit when power returns.

Aside from the technical issues, do you really want to modify the equipment? I would think the LIABILITY INSURANCE would be rather significant if something did not go well.


#201298 - 05/26/11 05:33 PM Re: how to by pass?? [Re: LarryC]  
Niko  Offline
Member
Joined: Aug 2006
Posts: 356
Campbell, CA
Originally Posted by LarryC
Is the on/off switch a momentary switch? If not, then leaving the switch in the on position should restart the unit when power returns.

Aside from the technical issues, do you really want to modify the equipment? I would think the LIABILITY INSURANCE would be rather significant if something did not go well.


The switch is a momentary.



Be kind to your neighbor, he knows where you live


#201299 - 05/26/11 07:45 PM Re: how to by pass?? [Re: Niko]  
LarryC  Offline
Member
Joined: Jul 2004
Posts: 783
Winchester, NH, US
Contact the manufacturer. There may be some sort of user menu where you can set the machine to start up after a restoration of power. The same idea but different application, as the sleep timer on a TV set.

Can the A/C be connected to a home automation system? If so, perhaps the connection point allows remote operation.

Does the A/C unit use a remote control? Perhaps the remote could be hacked?


#201300 - 05/26/11 09:37 PM Re: how to by pass?? [Re: Niko]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,069
Estero,Fl,usa
I think Larry's first response is the only real answer for you. See what the manufacturer says. You really want to be using the approved solution. I am sure you can jumper something out to make it go but that might be outside the scope of your insurance.


Greg Fretwell

#201302 - 05/27/11 12:06 AM Re: how to by pass?? [Re: Niko]  
mbhydro  Offline
Member
Joined: Feb 2003
Posts: 347
Winnipeg MB Canada
Small UPS depending on how long the power is going to be off?


#201303 - 05/27/11 01:22 AM Re: how to by pass?? [Re: Niko]  
jdevlin  Offline
Member
Joined: Aug 2002
Posts: 402
welland ontario canada
Actually being a AC it need a large UPS.
Contact the manufacturer and see if they make an 'auto restart' kit.


#201304 - 05/27/11 03:48 AM Re: how to by pass?? [Re: Niko]  
Niko  Offline
Member
Joined: Aug 2006
Posts: 356
Campbell, CA
I contacted the manufacturer they could not help me. The unit doesn't have an auto ON function. I think i will push them to go to a small central AC unit just for that room.

Too bad the building owner doesn't allow a wall mounted unit.

Thank you all for your replies.


Be kind to your neighbor, he knows where you live


#201309 - 05/27/11 09:07 AM Re: how to by pass?? [Re: Niko]  
renosteinke  Offline
Cat Servant
Member
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
Are you samiliar with what is called a 'mini-split' system?


#201310 - 05/27/11 01:44 PM Re: how to by pass?? [Re: Niko]  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,808
Brick, NJ USA
Niko:
You said a 'small computer room'?

Is that room a 'IT' classified room? (Article 645)

I suggest that you check into that Article. As you said a 'small start-up' company, but your building dept may have issues with that 'room'.

It all depnds on what it is 'called' and by whom.

A seperate system works in an 'IT' room by Art 645, but there qre other requirements.



John

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