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Search: Posts Made By: Vlad
Forum: Geothermal & Heat Pumps 02-19-13, 08:06 PM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
AC here is my reply for you and others....: ...

AC here is my reply for you and others....:

Sorry about ignorance... Got super busy and have no time for my project. I used city water (I know bad bad boy.....) for cooling my HP in summer time....
Forum: Geothermal & Heat Pumps 09-01-12, 08:53 PM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
So, let's see your project running......

So, let's see your project running......
Forum: Geothermal & Heat Pumps 08-22-12, 12:44 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
It is cool and warm. Just switch reversing valve...

It is cool and warm. Just switch reversing valve ..... :)
Forum: Geothermal & Heat Pumps 08-18-12, 05:19 PM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
I was thinking about it but I don't see myself...

I was thinking about it but I don't see myself paying 600-700$ for ventilator and core. Pay off will be like 20 years. I have vent room which is 9x9 small room located on 3 floor. All my ducts go...
Forum: Geothermal & Heat Pumps 08-06-12, 05:06 PM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
Just Google: thumbscrew core depressor

Just Google: thumbscrew core depressor
Forum: Geothermal & Heat Pumps 08-06-12, 05:00 PM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
Do you know your gauges?

Very useful pdf about refrigeration gauges. A must read material for DIY and I bet many "professionals" have no idea how to connect and disconnect gauges with minimal refrigerant loss and without...
Forum: Geothermal & Heat Pumps 08-06-12, 04:30 PM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
Yes, you are right this is tube in tube HX made...

Yes, you are right this is tube in tube HX made by Packless
Heat Transfer Coils Manufacturer | Condenser Coils | Heat Pump Coils | Chiller - Evaporator Coil | Air Conditioning (AC), Heating,...
Forum: Geothermal & Heat Pumps 08-06-12, 04:15 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
OK last few days I had a chance to test my AC as...

OK last few days I had a chance to test my AC as it is + 90F outside. This is a real test. 1 ton AC for 3000sqft house is not too much. When outside was 78F-80F It was OK inside but 90F is a killer....
Forum: Geothermal & Heat Pumps 08-01-12, 02:50 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
2 Stage Cooling Heating

I installed 1 ton unit in 3000 sq ft section of my house primarily for heating fresh air in spring-fall season. This unit is running now in AC mode on city water (temporary). It is big enough to keep...
Forum: Geothermal & Heat Pumps 07-31-12, 01:02 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
Very Cool PT chart

I was looking for my old electronic PT chart but couldn't find it.
Tried many online PT charts but they mostly for regular refrigerants.
I was looking for R290 (propane).

Finally I was...
Forum: Geothermal & Heat Pumps 07-21-12, 06:11 PM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
Here is some info about my water to air HP/AC...

Here is some info about my water to air HP/AC unit:

I got this unit for free with dead compressor (it was 265V anyways...).

Originally unit was installed in office building with water loop...
Forum: Geothermal & Heat Pumps 06-28-12, 05:49 PM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
Because this is HP (I kinda missed this part at...

Because this is HP (I kinda missed this part at the beginning) and it is split you have couple of options for MD.

1. you have 2 MD one is in inside unit(air coil) second is in outside unit...
Forum: Geothermal & Heat Pumps 06-23-12, 01:56 PM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
My guess about R410a was right. R290 or...

My guess about R410a was right.

R290 or just propane is very close to R22 but really different from R410a. AC or HP is a system and not just system but closed balanced system. Every component...
Forum: Geothermal & Heat Pumps 06-23-12, 02:25 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
Theprof, I guess Klimaire is a mini split AC...

Theprof,

I guess Klimaire is a mini split AC unit that uses R410a. If it is I think propane is not the best option.

1. Capacity will change. From 12k BTU you will get only 9k or 10k who knows?...
Forum: Geothermal & Heat Pumps 06-19-12, 02:45 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
You need everything special to work with it. For...

You need everything special to work with it. For DIY person it is too expensive. Propane is much more friendly.....:)
Forum: Geothermal & Heat Pumps 04-18-12, 11:59 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
Can you provide more details? Like heat/ cool...

Can you provide more details? Like heat/ cool load expected, temperature range, etc the more the better, don't worry we will read it all :)



How critical is to have XE in plexiglass box ??
Forum: Geothermal & Heat Pumps 03-29-12, 12:40 PM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
"Am I doing this for comfort living or just...

"Am I doing this for comfort living or just record high COP (which means nothing sometimes)"

I do understand and agree that for most of us building an efficient source of heating or cooling is not...
Forum: Geothermal & Heat Pumps 03-28-12, 09:53 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
Randen, HP/AC systems are SYSTEMS and...

Randen,

HP/AC systems are SYSTEMS and require planning when designed. The issue with loop exposed outside is fixable, just insulate it properly. Freezing is an issue but also you don't want to...
Forum: Geothermal & Heat Pumps 03-26-12, 10:51 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
Safe antifreeze

I would go with propylene glycol because it is food safe antifreeze. If leak happens you don't want disaster in your house or even outside. You never know what can leak and where. Also make sure you...
Forum: Geothermal & Heat Pumps 03-26-12, 03:27 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
randen, When your unit runs in AC mode and...

randen,

When your unit runs in AC mode and evaporator freezes up it means you shifted suction pressure/temperature into too low range. The easiest and right way to bring it back is to increase...
Forum: Geothermal & Heat Pumps 03-24-12, 12:29 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
Congratulations Randen you have just built a...

Congratulations Randen you have just built a freezer :).

I posted about this situation when you wide open water regulating valve on walk-in cooler it becomes walk-in freezer.

There is...
Forum: Geothermal & Heat Pumps 03-23-12, 10:15 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
This is the trap many DIY get into (including...

This is the trap many DIY get into (including myself). The point is you have to set your goals and follow them. It is like going shopping for 2000$ car and ending up with car mortgage. You have to be...
Forum: Geothermal & Heat Pumps 03-15-12, 12:20 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
So, you need some kind of reservoir that has big...

So, you need some kind of reservoir that has big opening for filling grout. It must be big enough to hold enough grout otherwise you will get voids. Also it must be strong enough otherwise you will...
Forum: Geothermal & Heat Pumps 03-15-12, 12:15 AM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
It only costs about 1000 $$. If I could find...

It only costs about 1000 $$. If I could find used one for 200-300$$. There are other ones using the same idea(They used for concrete Mudjacking). But they all in 1000$$ range. I want to keep price...
Forum: Geothermal & Heat Pumps 03-14-12, 12:54 PM
Replies: 1,943
Views: 3,656,026
Posted By Vlad
I found the answer to pumping stubborn grout: ...

I found the answer to pumping stubborn grout:

Concrete countertops: How cement particles are like socks. - YouTube (http://www.youtube.com/watch?v=C52wz6MKFCQ&feature=fvwrel)

Concrete...
Showing results 1 to 25 of 100

 
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