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Forum: Geothermal & Heat Pumps

05-06-12, 03:03 PM

Replies: 91

Controlling a DC inverter machine

Views: 71,785

Posted By xotet

Hi Nigel, great Job!!!!! this is very promising....

Hi Nigel, great Job!!!!! this is very promising. I only worried with the logic of the PCB that controls the Outdoor unit, for example you can send a command to put the unit on in the heat mode but...

Forum: Geothermal & Heat Pumps

05-06-12, 10:36 AM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

I´m still working on my setup, a lot of data...

I´m still working on my setup, a lot of data collected before to connect the HX, in order to get the system with the the correct refrigerant quantity I need to collect as many as data possible before...

Forum: Geothermal & Heat Pumps

04-12-12, 12:49 AM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

Hi Nigel I buyed on ebay store, I´m using a...

Hi Nigel I buyed on ebay store, I´m using a 6000-1000BTU rated, it costs me 154€, there are lower prices but if you work with R410A you need a certified unit at 45Bar.

This is the store:

...

Forum: Geothermal & Heat Pumps

04-11-12, 11:42 AM

Replies: 91

Controlling a DC inverter machine

Views: 71,785

Posted By xotet

I don´t know Daikin, I have mitsubitshi here in ...

I don´t know Daikin, I have mitsubitshi here in my house, but certainlly maybe the same. The comunication between the indoor and outdoor units it´s Serial. If you post the model of the Daikin you...

Forum: Geothermal & Heat Pumps

04-11-12, 09:22 AM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

Hi Nigel, nice to take an opportunity to talk...

Hi Nigel, nice to take an opportunity to talk with you, I´m also talking from Spain, again I´m apologize for my bad english.

Before start my project I readed and studied your posts,...

Forum: Geothermal & Heat Pumps

04-10-12, 03:55 PM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

Some parts start arriving, actually I´m working...

Some parts start arriving, actually I´m working on the Fan´s due to unable to control the compressor dicharge temp with the condenser Fan. Also investigated the speed regulation of the shaded pole...

Forum: Geothermal & Heat Pumps

04-07-12, 10:43 AM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

Hi Folks, still waiting some parts, but working...

Hi Folks, still waiting some parts, but working on the test rig. At this time I removed all the parts from the A/C unit, only used the compressor, evaporator and condenser. Put it on a Test rig. I´m...

Forum: Geothermal & Heat Pumps

03-27-12, 03:13 PM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

Hi AC, sorry for the pic, I made it superfast and...

Hi AC, sorry for the pic, I made it superfast and isn´t the best.

I´m talking about this:

http://ecorenovator.org/forum/attachment.php?attachmentid=2238&d=1332878627

With Heat...

Forum: Geothermal & Heat Pumps

03-27-12, 10:47 AM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

Ok, just run third test, just to know why I´m...

Ok, just run third test, just to know why I´m having evoporator frost. For this test I´m covered a half of air condenser in order to get high temperature on condenser outlet.

Started the...

Forum: Geothermal & Heat Pumps

03-23-12, 04:51 PM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

Hi Folks, Today I finally removed...

Hi Folks,

Today I finally removed electronics from the A/C unit, So I run First test to see what´s the Max temp can be reached on the condenser inlet. The results have been disappointing, just a...

Forum: Geothermal & Heat Pumps

03-18-12, 11:42 AM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

No I´m going to heat the water, the use of the...

No I´m going to heat the water, the use of the compressor heat to increase the performance it´s a great idea, and also the heat radiation of the HX to the ambient may also used to increase system...

Forum: Geothermal & Heat Pumps

03-14-12, 03:10 PM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

Yes, I have acces to R410A, But I´m evaluating to...

Yes, I have acces to R410A, But I´m evaluating to use R407C since it gets hotter at lower pressures, this gone be interesting to test.

According R410 P/T table:

Cd 57ºC=36 Bar...

Forum: Geothermal & Heat Pumps

03-13-12, 06:48 PM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

Today I buyed a Olimpia portable A/C, for only...

Today I buyed a Olimpia portable A/C, for only 40€. Before make any mods on it I´ve tested the operation, here are the numbers:

Ambient temp = 15ºC
Compressor Discharg = 57ºC Max
...

Forum: Geothermal & Heat Pumps

03-11-12, 09:45 AM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

Hi Folks, thanks for your inputs. This...

Hi Folks, thanks for your inputs.

This is a great idea. I´m focused now only on the HX, multiplate HX have Higher performance but have higher pressure drops. I Will like to start testing...

Forum: Geothermal & Heat Pumps

03-10-12, 04:40 PM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

Nexsupreme thanks for your inputs, your system...

Nexsupreme thanks for your inputs, your system seems to be very cool, could you please post some photos??? Also I have a few questions:

-What´s the refrigerant are you using???
- How...

Forum: Geothermal & Heat Pumps

03-10-12, 12:34 PM

Replies: 28

Using portable A/C for DHW Heater

Views: 18,337

Posted By xotet

Using portable A/C for DHW Heater

Hi Folks, first off all I´m apologize for my bad english, I´m writting from Spain. This is the most interesting forum found over the net talking about Heat pumps DIY and A/C hacking.

The goal of...

Showing results 1 to 16 of 16

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