- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
re: Power Home HVAC with Portable Gen (Part 2: MicroAir 368 Review)
Posted on 7/19/22 at 12:45 pm to bapple
Posted on 7/19/22 at 12:45 pm to bapple
i have a hyper engineering sure start on order, i wanted the device to be able to fit inside the electrical cover area, the sure start is smaller and could fit but not the microair easystart
hyper engineering also gives you more engineering information
eta: as far as my diy version, i've settled on not risking it on my main unit
hyper engineering also gives you more engineering information
eta: as far as my diy version, i've settled on not risking it on my main unit
This post was edited on 7/19/22 at 12:52 pm
0
Posted on 7/19/22 at 2:10 pm to bootlegger
quote:
Well, the Champion tri-fuel kicked on my 5 ton unit with no issues, on natural gas. I'm tickled pink about that! The generator was about 1200, MicroAir soft start was 350, and about 1000 for the interlock kit/wiring/50amp plug/etc., so I'm about $2500 in and can run the entire house.
Glad you got it knocked out. From what you described on the outdoor board, I figured it would work fine.
Posted on 7/19/22 at 2:35 pm to bigbuckdj
Not having to chase gasoline is the main benefit, but I sure was happy when the unit ramped up, and there actually wasn't a heavy strain on the generator, at least it didn't sound like it.
Posted on 7/19/22 at 3:39 pm to bapple
I have an oscilloscope, a current clamp that works with it, and a high voltage differential probe
I'll post some pictures of what a 3 Ton compressor start looks like electrically when i get some time
I'll post some pictures of what a 3 Ton compressor start looks like electrically when i get some time
Posted on 8/21/22 at 10:56 am to DVinBR
BEFORE INSTALLING HYPER ENGINEERING SOFT STARTER
1. yellow: voltage across start winding, blue: current into the common terminal (10mV/A)
2. more detailed voltage across the start winding
3. yellow: voltage across run winding, blue: current into common terminal (10mV/A)
AFTER INSTALLING HYPER ENGINEERING SOFT STARTER
1. voltage across run winding during start
2. more detail voltage across run winding during initial start
3. even more detail
4. voltage across run winding right before full voltage is applied
5. voltage across run winding after start
Clearly you can see a TRIAC firing on the start with the soft starter, and it's not a near 0 ramp, it begins with about 1/2 of a cycle and ramps up very fast staring after only 15 cycles or so
1. yellow: voltage across start winding, blue: current into the common terminal (10mV/A)
2. more detailed voltage across the start winding
3. yellow: voltage across run winding, blue: current into common terminal (10mV/A)
AFTER INSTALLING HYPER ENGINEERING SOFT STARTER
1. voltage across run winding during start
2. more detail voltage across run winding during initial start
3. even more detail
4. voltage across run winding right before full voltage is applied
5. voltage across run winding after start
Clearly you can see a TRIAC firing on the start with the soft starter, and it's not a near 0 ramp, it begins with about 1/2 of a cycle and ramps up very fast staring after only 15 cycles or so
This post was edited on 8/21/22 at 11:03 am
Posted on 7/26/23 at 4:37 pm to DVinBR
Just linked this thread and realized I never replied to this. That’s really awesome to see the tiny differences in the wave form from the soft starter. Thanks for sharing.
Posted on 7/27/23 at 9:25 am to bapple
Does anyone have data with Micro Air and a 4 Ton unit?
I'm wondering if my 6250/8500 portable generator can handle my central AC with a soft start. I have a 2019 Carrier 4 ton 16 SEER with a listed 105 LRA.
Looking at everyone's numbers, if the soft start can reduce my LRA by about 70%, it should stay below my generator's max.
I'm wondering if my 6250/8500 portable generator can handle my central AC with a soft start. I have a 2019 Carrier 4 ton 16 SEER with a listed 105 LRA.
Looking at everyone's numbers, if the soft start can reduce my LRA by about 70%, it should stay below my generator's max.
This post was edited on 7/27/23 at 9:27 am
Posted on 7/27/23 at 9:43 am to Delacroix
In an attempt to get generator connections in place prior to the 2023 hurricane season, I installed the ASY-368-X72-BLUE model on my 4 ton, 14 SEER, heat pump Rheem about a month ago. Worked great for 48 hours. Noticed a sound reduction and less light flickering at start up.
Went out of town for a few days for work and the Ms. called stating the house wasn’t cooling. The fan was blowing warm/hot threw the registers. I had her turn the unit off and sleep a night elsewhere. I got home couldn’t get the easy start to connect to the app. Noticed the compressor wasn‘t kicking. Due to time constraints I removed the easy start, put all wiring back the way it was and my unit is working fine.
This reminds me I need to notify EasyStart.
My nameplate reads: compressor LRA 117 and RLA 21.8 (I didn’t test it prior to install)
When the device worked, the app read LRA ~80 if I recall correctly.
Good luck
Went out of town for a few days for work and the Ms. called stating the house wasn’t cooling. The fan was blowing warm/hot threw the registers. I had her turn the unit off and sleep a night elsewhere. I got home couldn’t get the easy start to connect to the app. Noticed the compressor wasn‘t kicking. Due to time constraints I removed the easy start, put all wiring back the way it was and my unit is working fine.
This reminds me I need to notify EasyStart.
My nameplate reads: compressor LRA 117 and RLA 21.8 (I didn’t test it prior to install)
When the device worked, the app read LRA ~80 if I recall correctly.
Good luck
Posted on 7/27/23 at 11:19 am to Delacroix
quote:
I have a 2019 Carrier 4 ton 16 SEER with a listed 105 LRA
I think a 65-70% reduction could be reasonably expected. So 30% of 105 puts us around 31A. And 31A * 240V = 7440W. According to that it should be able to handle the surge.
quote:
My nameplate reads: compressor LRA 117 and RLA 21.8 (I didn’t test it prior to install) When the device worked, the app read LRA ~80 if I recall correctly.
Yours may have not finished the “learned starts” part before you checked the readings. After 5 starts it will have optimized the start to reduce the LRA as much as possible. If it does 5 learned starts and you think the numbers still aren’t the best, you can clear the learn and let it run the learn cycle again.
MicroAir has been great to work with when one of my SS units stopped operating properly. I couldn’t connect on Bluetooth so I went outside to check it and no lights were on. It was still starting up the compressor but basically as if the soft starter wasn’t there. The MicroAir tech gave me some quick things to look over and concluded the starter was bad. Sent me a replacement in 3 days.
This post was edited on 7/27/23 at 11:21 am
Posted on 7/28/23 at 3:05 am to Delacroix
i have a 14 SEER 4 ton unit that I run off a huge 7kW inverter generator, i don't even get an overload light blink during the compressor start (i use the hyper engineering soft starter which is extremely similar)
Page 2 of 2
Popular
Back to top
Follow TigerDroppings for LSU Football News