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Search took 0.02 seconds. Search: Posts Made By: Xringer

Forum: Geothermal & Heat Pumps

05-18-16, 08:56 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

Well, that was a dead end..

I started with one and added on another, and then another..
They got pretty hot, but the DC voltage on the large caps was under 3Vdc.
No DC going to the logic devices.. ...

Forum: Geothermal & Heat Pumps

05-15-16, 04:10 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

Thanks for the reply!

Health issues abound, bad weather, a wake & funeral and other stuff,
have delayed digging into this Sanyo mess again. Thanks for taking the time to refresh yourself. You got me reading about...

Forum: Geothermal & Heat Pumps

05-14-16, 03:56 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

I'm thinking THO2 might be the Bootstrap.. Not...

I'm thinking THO2 might be the Bootstrap.. Not sure, since I have no clue, what's under the plastic box..
So, I'm thinking about tacking a 12k Ohm 5 or 10w resistor across THO2, (mains relay) just...

Forum: Geothermal & Heat Pumps

05-14-16, 03:01 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

We had about 8 days of off & on rain, then...

We had about 8 days of off & on rain, then relative passed on..
Plus seems the trees are full of allergens these days. I feel like taking a nap until summer.
Feel like I'm starting from scratch...

Forum: Geothermal & Heat Pumps

05-03-16, 09:32 AM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

I'm trying to find out about the Gree U-Crown...

I'm trying to find out about the Gree U-Crown line. It came out about a year ago,
but it doesn't seem like it's being sold in the USA yet.. Just in Canada and elsewhere.
...

Forum: Geothermal & Heat Pumps

04-28-16, 01:25 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

"The U-Crown heatpump is specifically designed...

"The U-Crown heatpump is specifically designed for Canadian weather with its 2-Stage compressor. It will keep you warm during those harsh winters with a capacity to run at full efficiency up to -30ºC...

Forum: Geothermal & Heat Pumps

04-28-16, 10:57 AM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

Yeah, it takes years to change her mind on...

Yeah, it takes years to change her mind on anything new. Simple stuff like a microwave oven.. Getting that was a real task. I guess one of the girls at the office said they were radioactive.. ;)
I...

Forum: Geothermal & Heat Pumps

04-27-16, 05:32 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

When I get new Gree Crown units, the old Sanyo...

When I get new Gree Crown units, the old Sanyo units will be removed and scrapped.

The reason for the 10 amp limit is because I think 15 or 20 amps at 240 to 250 vac,
is too much power. I...

Forum: Geothermal & Heat Pumps

04-27-16, 02:48 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

Jeff, TH02 reads as 40 ohms.. That low R should...

Jeff, TH02 reads as 40 ohms.. That low R should shoot a pretty good amount of AC down to the diodes.. Seems like it would be enough to fire up the tinyswitch parts.. I think you might be right about...

Forum: Geothermal & Heat Pumps

04-27-16, 02:27 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

Got out the VOM, and the Wife had to take me for a long walk..

Jeff, that big black diode over by the tiny-switch is connected to the big relay..
I took a better picture of the PCB too..

I think that big relay is the key.. It's connected down to the big...

Forum: Geothermal & Heat Pumps

04-27-16, 02:08 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

Yeah, I made two of them. They turn things off at...

Yeah, I made two of them. They turn things off at 10A (2.4kW).
They reset after 60-70 seconds. Sanyo #1 shut down this morning.
#1 ran a defrost cycle, melted off all the frost, switched back into...

Forum: Geothermal & Heat Pumps

04-27-16, 09:11 AM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

Nice work Jeff.. I guess you do this for a...

Nice work Jeff.. I guess you do this for a living.?.
That PWM Transistor is Q01? (Middle left on the board)?...

Forum: Geothermal & Heat Pumps

04-27-16, 09:04 AM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

That's mine. It's the basic wiring of the main...

That's mine. It's the basic wiring of the main board.
Mine has been hacked to add a 10A auto-breaker. (upper right corner).
http://i46.photobucket.com/albums/f147/Xringer/NCL/Untitled.jpg
It's...

Forum: Geothermal & Heat Pumps

04-26-16, 08:52 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

I've been looking for any more fuses.. So far...

I've been looking for any more fuses.. So far they are all good..
Not many more places they can hide.

The heat sink hangs upside down, under the controller board.. ...

Forum: Geothermal & Heat Pumps

04-26-16, 07:40 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

There is a 'Heater' label beside that big relay....

There is a 'Heater' label beside that big relay. But, I've still been looking at that relay as a suspected 230 AC power provider for those big diodes.
I made a reference pic, with an inversion on...

Forum: Geothermal & Heat Pumps

04-26-16, 06:04 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

Thanks for all the input Jeff. The little red...

Thanks for all the input Jeff. The little red LED is dead. No DC has been seen. Either HV or low voltage.
I ran the diagnostic, the other day and it was still S01. I don't think anything has...

Forum: Geothermal & Heat Pumps

04-26-16, 05:34 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

Look at the 3 devices in the lower left corner,...

Look at the 3 devices in the lower left corner, with white heat-sink paste on them.. I think DO7 is a dual diode.
And DB01 & DB02 are Diode Bridges.

That's where I'll look for DC (when the rain...

Forum: Geothermal & Heat Pumps

04-25-16, 10:22 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

I noticed the words "Safety Spacing" on the top...

I noticed the words "Safety Spacing" on the top of that tinyswitch 'little circuit example'.
I've never seen PCBs milled out like that before. And I only retired in 2009..

In that example, DIP...

Forum: Geothermal & Heat Pumps

04-25-16, 12:33 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

I don't know. I don't think they were cutting...

I don't know. I don't think they were cutting lands.
Maybe they provide greater isolation between HV points?
Or maybe they are water drain slots? Assuming that water droplets formed
on top of the...

Forum: Geothermal & Heat Pumps

04-25-16, 08:31 AM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

I've been looking at that old repair guide for a...

I've been looking at that old repair guide for a while. It actually has a pic of my controller.
I think you nailed it with IC05. Looking at the app example tells the tale.
Which part number did...

Forum: Geothermal & Heat Pumps

04-24-16, 08:25 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

Thanks Wyr you saved me some time. I skipped over...

Thanks Wyr you saved me some time. I skipped over looking at the whole board.
Once I started looking at parts that looked like they might be part of a DC supply, I got into the right area.
That...

Forum: Geothermal & Heat Pumps

04-24-16, 04:00 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

No able to see any DC at all high or low voltage...

No able to see any DC at all high or low voltage isn't there. Lots of 230vac!
I think there is some kind of switch or connection that turns on the DC.
Without even a block diagram, it's going to...

Forum: Geothermal & Heat Pumps

04-23-16, 01:52 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

I think the heavy oil trucks on residential roads...

I think the heavy oil trucks on residential roads might be breaking gas pipes.. ;)
City Maps of Gas Leaks | HEET (http://www.heetma.org/squeaky-leak/natural-gas-leaks-maps/)

Yeah, I think Pinball...

Forum: Geothermal & Heat Pumps

04-23-16, 09:20 AM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

My memory is going south. 6.5 years ago when I...

My memory is going south. 6.5 years ago when I was installing Sanyo #1, the price was
about 20 cents per KWH.. It's gone down and back up a little since then.
What we have been seeing lately, is...

Forum: Geothermal & Heat Pumps

04-22-16, 11:04 PM

Replies: 185

#2 Sanyo 24KHS72 AC/HP Install Project (Oct 2011)

Views: 106,380

Posted By Xringer

It might be better to have a higher SEER unit.....

It might be better to have a higher SEER unit.. My cost per KW hour has about doubled during the last 5 or 6 years.
It was 11 cents, then got up to 17, went down a bit, then jumped to 22.25 cents...

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