Forum: Geothermal & Heat Pumps
05-26-18, 04:55 PM
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Replies: 46
Views: 24,389
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Forum: Geothermal & Heat Pumps
04-10-17, 01:09 AM
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Replies: 46
Views: 24,389
The climate in NZ is mild compared to the...
The climate in NZ is mild compared to the extremes that the USA can get. I ran the A/C on the Daikin unit for about 15 days this summer mostly to remove humidity. In winter we only have brief periods...
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Forum: Geothermal & Heat Pumps
04-10-17, 12:51 AM
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Replies: 46
Views: 24,389
Hi Jeff , some good ideas there .
I think i...
Hi Jeff , some good ideas there .
I think i will K.I.S.S . May be if i had included a reciever in the design it may of been worth thinking about . With a system that has 2 plates the refrigerant...
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Forum: Geothermal & Heat Pumps
04-08-17, 01:31 PM
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Replies: 46
Views: 24,389
I am using the complete Carel system.
...
I am using the complete Carel system.
Expansion valve driver (http://www.carel.com/expansion-valve-driver)
E2V fully welded (http://www.carel.com/product/e2v-b)
These use a pressure...
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Forum: Geothermal & Heat Pumps
04-07-17, 09:40 PM
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Replies: 46
Views: 24,389
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Forum: Geothermal & Heat Pumps
04-07-17, 02:20 AM
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Replies: 46
Views: 24,389
Here is a quote on how eevs work from Carel.
...
Here is a quote on how eevs work from Carel.
Over the last decade electronic expansion valves and controllers have taken a substantial part of the expansion valve market due to the increased...
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Forum: Geothermal & Heat Pumps
04-06-17, 02:28 PM
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Replies: 46
Views: 24,389
Hi Jeff ,
i have no concerns about discussing...
Hi Jeff ,
i have no concerns about discussing design and dont have hurt feelings or anything:) .
I fully understand the effects of "over condensing" and have seen the effects on air cooled...
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Forum: Geothermal & Heat Pumps
04-06-17, 04:25 AM
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Replies: 46
Views: 24,389
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Forum: Geothermal & Heat Pumps
04-05-17, 12:36 AM
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Replies: 46
Views: 24,389
Hi Jeff ,
both of these plates are freebies ,...
Hi Jeff ,
both of these plates are freebies , so im just doing what i can with them.
The evap is a 10t or 35kw , so more than 100% over capacity. If i used the dual plate it may be 200% over and i...
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Forum: Geothermal & Heat Pumps
04-04-17, 01:52 AM
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Replies: 46
Views: 24,389
Hi Jeff,
The condenser is physicaly twice the...
Hi Jeff,
The condenser is physicaly twice the size of the evap , its a dual circuit plate and i have put a ball valve on one side to experiment with how system performs . These plates are just...
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Forum: Geothermal & Heat Pumps
04-03-17, 01:06 AM
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Replies: 46
Views: 24,389
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Forum: Geothermal & Heat Pumps
04-03-17, 01:02 AM
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Replies: 46
Views: 24,389
Ive attached a few photos , showing condenser...
Ive attached a few photos , showing condenser with desuperheater mounted above , to allow any liquid to drain down to condenser. Condenser is a dual circuit , ive got a ball valve on one side to...
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Forum: Geothermal & Heat Pumps
04-01-17, 02:04 PM
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Replies: 46
Views: 24,389
I had a Daikin Ry125luy1 , which is a 12.5kw...
I had a Daikin Ry125luy1 , which is a 12.5kw reverse cycle heatpump , i only had the out door unit and no matching indoor.
I removed all electronics and eev and replaced with a txv . There is a...
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Forum: Geothermal & Heat Pumps
04-01-17, 01:32 PM
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Replies: 46
Views: 24,389
Hi all,
when i started my original project we...
Hi all,
when i started my original project we had just built the house so budget was tight. I had collected various compressors and pumps controllers etc , i bought the evap and condenser from a...
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Forum: Geothermal & Heat Pumps
04-01-17, 03:54 AM
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Replies: 46
Views: 24,389
Hi every one,
well i had a few issues with the...
Hi every one,
well i had a few issues with the stream heat exchanger , performance was excellent but corrision was the problem. i had bolted it to stainless cross braces and where it was touching...
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Forum: Geothermal & Heat Pumps
04-11-14, 08:16 PM
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Replies: 46
Views: 24,389
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Forum: Geothermal & Heat Pumps
03-04-14, 12:28 AM
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Replies: 46
Views: 24,389
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Forum: Geothermal & Heat Pumps
03-03-14, 11:31 PM
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Replies: 46
Views: 24,389
Hi AC , i have attached a few photos showing 2...
Hi AC , i have attached a few photos showing 2 temperature controllers , the blue is for evaporator temp and set at 1c to prevent ice up , the red one is condenser flow temp for floor .This is how i...
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Forum: Geothermal & Heat Pumps
03-03-14, 11:35 AM
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Replies: 46
Views: 24,389
Hi DAox , i have been collecting the parts over...
Hi DAox , i have been collecting the parts over the last couple of years as we started to plan the house build. The blue steel base and compressor come from an old dairy farm milk cooler, one pump...
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Forum: Geothermal & Heat Pumps
03-03-14, 01:22 AM
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Replies: 46
Views: 24,389
Hi Steve , yes we are 20 kilometers from...
Hi Steve , yes we are 20 kilometers from Palmerston North in friendly Feilding. :)
Yes we do have a mild winter temps with no sustained freezing temperatures , sometimes just overnight. The...
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Forum: Geothermal & Heat Pumps
03-02-14, 11:16 AM
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Replies: 46
Views: 24,389
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Forum: Geothermal & Heat Pumps
03-02-14, 02:39 AM
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Replies: 46
Views: 24,389
Hopefully photos attached.
The stream heat...
Hopefully photos attached.
The stream heat exchanger is 3 x 6metre lenghts and gives me about 2.2m2 of area and when on full load , if stream is 17 c i will get water returning at 13c , cool it down...
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Forum: Geothermal & Heat Pumps
03-02-14, 02:35 AM
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Replies: 46
Views: 24,389
photo of heatpump
...
photo of heatpump
http://ecorenovator.org/forum/attachments/geothermal-heat-pumps/4101d1393749762-new-zealand-diy-water-source-hp-wp_20140222_003-jpg
...
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Forum: Geothermal & Heat Pumps
03-02-14, 02:34 AM
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Replies: 46
Views: 24,389
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Forum: Geothermal & Heat Pumps
03-02-14, 02:31 AM
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Replies: 46
Views: 24,389
New Zealand DIY Water Source HP.
Hi Everyone,
i finally have my project near completion and currently running in my shed for testing, bring on the winter!
I have a small stream that is 60 metres from my house and i use this as my...
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