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Thread: Fujitsu AOU12R1 Heatpump
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18-05-2009, 04:04 PM #1
Fujitsu AOU12R1 Heatpump
Hey guys! Got a question for you, I was wondering how to connect a low ambiant thermostat on the condenser on the Fujitsu's AOU12R1. Because my friends brother gave him the unit and I installed it , I installed about 50 of these units but it's the first heat pump, and the low ambiant is at the condenser but the wires are not connected, I know that one wire was on the terminal block in the condenser but I don't know wich one! I do know that's it's only one wire that you split to connect the low ambiant. But I'd like to know exactly where I have to connect it!!! I've been searching for wiring diagrams with no luck so far!!
Thanks guys!!
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19-05-2009, 01:06 AM #2
Re: Fujitsu AOU12R1 Heatpump
If its got the low ambient on there then it should already be connected if its not then you should call them back out on warranty.
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19-05-2009, 01:50 PM #3
Re: Fujitsu AOU12R1 Heatpump
It's not on warranty anymore, it's not a big thing to connect, I just want to be sure.
Thanks man
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19-05-2009, 02:11 PM #4
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Re: Fujitsu AOU12R1 Heatpump
What is purpose of that thermostat, since I newer heard of termostat in Fujitsu outdoor unit neither it is present in original wiring diagram.
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19-05-2009, 05:00 PM #5
Re: Fujitsu AOU12R1 Heatpump
You are right, that thermostat is not present in the original diagrams, I just talk with a Fujitsu technician and they add it for protection if you try to make it work when it's too cold outside. So to connect it, you simply take the wire out of the number 3 lead on the terminal block at the condenser, and you split it with the low ambiant. Very simple but I wanted to be sure!!
Thanks guys !!
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19-05-2009, 06:18 PM #6
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22-05-2009, 07:39 PM #7
Re: Fujitsu AOU12R1 Heatpump
Can't do that on split systems, the purpose of that thermostat is if you want to start only the fan inside ,you can do it without starting the compressor outside, so that way it won't be dammaged by frost back.
Thanks again man, I really appreciate your quality answers.
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22-05-2009, 11:28 PM #8
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Re: Fujitsu AOU12R1 Heatpump
[QUOTE]Why not?
the purpose of that thermostat is if you want to start only the fan inside ,you can do it without starting the compressor outside, so that way it won't be dammaged by frost back.
If it does circulate indoor air without heating it, it creates unpleasant draft.
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22-05-2009, 11:45 PM #9
Re: Fujitsu AOU12R1 Heatpump
[QUOTE=nike123;145918]
Why not?
What is purpose of starting fan mode only inside if air conditioner doesn't heat.?
If it does circulate indoor air without heating it, it creates unpleasant draft.
After all, they include a fan only mode on the remote controllers.
Why would they include a function that Nike123 says you don't need.
Daikin, Tosh, Hitachi, etc... you have it wrong, we don't need fan only anymore...Nike says.
Eggs
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23-05-2009, 12:06 AM #10
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Re: Fujitsu AOU12R1 Heatpump
To me, fan mode is OK when we need cooling effect in mild conditions, since faster air movement called draft or draught, generated by fan mode, makes cooling effect by evaporation of moisture, which we humans generate and call it "sweat".
On the other hand, same cooling effect generated by fan mode in heating season, "seems" unnecessary and unpleasant to me, and therefore action of preserving indoor fan mode in heating season, when low outdoor temperature thermostat is actually acting, is pretty stupid, by my way of looking at things!
Maybe these manufactures, you numbered, heaved same taught on their mind when they are incorporated fan mode, which doesn't cost them nothing, except additional button on remote control.Last edited by nike123; 23-05-2009 at 12:29 AM.
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23-05-2009, 12:14 AM #11
Re: Fujitsu AOU12R1 Heatpump
Thanks once again for correcting a "Dumb Ass" like me.
Is this the type of conversation you have with your wife every night?Last edited by eggs; 23-05-2009 at 12:16 AM.
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23-05-2009, 12:17 AM #12
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Re: Fujitsu AOU12R1 Heatpump
Eggs, if you wish to discuss with me without arguments, than I will not give you that pleasure.
In "dumb ass" post, I was not referring to you personally. I was only stating my opinion about over regulation in general which takes place globally, and that is my point. I don't see reason why you take it as personal attack to you, except because it was you quoted in that post. But you could understood that it is not personal. I see now that you took it as personal and I apologize if I hurt your feelings, but it is not my intention to hurt anyone feelings.
If you wish to discus about that further, than, I think, it is better to use private message system.
Regards,
nike123Last edited by nike123; 23-05-2009 at 12:56 AM.
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