HVAC Blower motor. - Page 4

Exeric · 11-25-13, 06:09 PM

Mastic didn't seem that messy to me. It's much thicker than paint so it doesn't drip. Overall much less messy than painting. You can't stop a duct air leak with insulation so the main thing is to always air seal ducts BEFORE insulating them. I'm not an HVAC guy either, though.

pinballlooking · 11-25-13, 06:17 PM

There is a few places that I should go back over with mastic.

I should have added that a few weeks ago I sealed up the big leaks with mastic. But I really just covered the side that blows air. This time I went over both sides. I was able to let it dry for a few days before I need to use it.

Daox · 11-26-13, 09:28 AM

Do you have any pictures of the install? Could you do a short write up on it?

pinballlooking · 11-26-13, 12:34 PM

Quote:

Originally Posted by Daox

Do you have any pictures of the install? Could you do a short write up on it?

I did not really take any pictures. I did not think people were that interested. But I could do a write up on it if that would help someone else out in the future. Once it warms up here I will get the energy readings from the new motor. I have a TED5000 energy monitor and I took the readings before I took the old motor out.

Daox · 11-26-13, 01:16 PM

I think that would be cool. I am interested. If I ever have my motor going bad I'd definitely consider it.

pinballlooking · 12-02-13, 04:11 PM

Old blower motor used on high 714 watts

New green motor uses 418 on high. It saves 296 watts on high.
the new green blower motor uses 82 watts on low. It saves 632 watts on low speed. This will really help in the summer to circulate cool air.

I used a TED 5000 to get these measurements and it is measuring the whole house so I waited until no heaters or other stuff was running check before after about 4 times and took the average. So no this is not exact it is decent.
My home automation is hooked up to the low fan setting and I am able to turn it on and off with my phone or a network device or with code.

Servicetech · 12-04-13, 08:37 PM

Watch leaving the blower on 24/7 in a humid climate, it could revaporate the condensate durign the offf cycle. How many hours of motor run time will it take to pay for the motor?

pinballlooking · 12-04-13, 09:19 PM

As you can see the low fan setting will help for payback. The high setting does save but it would take a very long time to get payback.
The payback is actually better than I thought it was going to be.
When you are using solar to cover all your power needs you have to look at how much solar would I have to add to cover this item.

Thanks for asking the question I am glad I did the math.

I won’t be leaving it on 24/7. It will be controlled by my home automation. The appliance that controls that knows the temp outside. It can get the temp inside and I can run the fan based on that info. It is totally programmable

Costs Calculator

Servicetech · 12-05-13, 08:00 PM

My standard 1/3 PSC motor only uses 345W on low speed, 480W on high speed. Payback time would be considerably longer... Motor is $250?

Is CFM the same with both blower motors?

pinballlooking · 12-05-13, 08:03 PM

I paid $226 shipped I replaced ½ HP motor that did not have a low setting.
It would calibrate for the 1/3 HP so it would use less watts replacing a 1/3 HP.
They have some charts showing this.

You could probably buy it for close to $100 less than me at a whole sale price.

Here are some specs on SNTech Green Motor
http://www.davidonindustries.com/stu...20Brochure.pdf

11-26-13, 09:28 AM	#33
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	Do you have any pictures of the install? Could you do a short write up on it? __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

11-26-13, 01:16 PM	#35
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	I think that would be cool. I am interested. If I ever have my motor going bad I'd definitely consider it. __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

12-04-13, 09:19 PM	#38
pinballlooking Super Moderator Join Date: Jun 2013 Location: SC Posts: 2,923 Thanks: 172 Thanked 564 Times in 463 Posts	As you can see the low fan setting will help for payback. The high setting does save but it would take a very long time to get payback. The payback is actually better than I thought it was going to be. When you are using solar to cover all your power needs you have to look at how much solar would I have to add to cover this item. Thanks for asking the question I am glad I did the math. I won’t be leaving it on 24/7. It will be controlled by my home automation. The appliance that controls that knows the temp outside. It can get the temp inside and I can run the fan based on that info. It is totally programmable Costs Calculator Attached Thumbnails Last edited by Daox; 12-05-13 at 07:59 AM..

12-05-13, 08:03 PM	#40
pinballlooking Super Moderator Join Date: Jun 2013 Location: SC Posts: 2,923 Thanks: 172 Thanked 564 Times in 463 Posts	I paid $226 shipped I replaced ½ HP motor that did not have a low setting. It would calibrate for the 1/3 HP so it would use less watts replacing a 1/3 HP. They have some charts showing this. You could probably buy it for close to $100 less than me at a whole sale price. Here are some specs on SNTech Green Motor http://www.davidonindustries.com/stu...20Brochure.pdf Last edited by pinballlooking; 12-06-13 at 10:35 AM..

11-25-13, 06:09 PM	#31
Exeric Apprentice EcoRenovator Join Date: Aug 2012 Location: California Posts: 274 Thanks: 19 Thanked 37 Times in 28 Posts	Mastic didn't seem that messy to me. It's much thicker than paint so it doesn't drip. Overall much less messy than painting. You can't stop a duct air leak with insulation so the main thing is to always air seal ducts BEFORE insulating them. I'm not an HVAC guy either, though.

11-25-13, 06:17 PM	#32
pinballlooking Super Moderator Join Date: Jun 2013 Location: SC Posts: 2,923 Thanks: 172 Thanked 564 Times in 463 Posts	There is a few places that I should go back over with mastic. I should have added that a few weeks ago I sealed up the big leaks with mastic. But I really just covered the side that blows air. This time I went over both sides. I was able to let it dry for a few days before I need to use it.

12-02-13, 04:11 PM	#36
pinballlooking Super Moderator Join Date: Jun 2013 Location: SC Posts: 2,923 Thanks: 172 Thanked 564 Times in 463 Posts	Old blower motor used on high 714 watts New green motor uses 418 on high. It saves 296 watts on high. the new green blower motor uses 82 watts on low. It saves 632 watts on low speed. This will really help in the summer to circulate cool air. I used a TED 5000 to get these measurements and it is measuring the whole house so I waited until no heaters or other stuff was running check before after about 4 times and took the average. So no this is not exact it is decent. My home automation is hooked up to the low fan setting and I am able to turn it on and off with my phone or a network device or with code.

12-04-13, 08:37 PM	#37
Servicetech Apprentice EcoRenovator Join Date: Nov 2013 Location: Moore Oklahoma Posts: 267 Thanks: 108 Thanked 23 Times in 21 Posts	Watch leaving the blower on 24/7 in a humid climate, it could revaporate the condensate durign the offf cycle. How many hours of motor run time will it take to pay for the motor?

12-05-13, 08:00 PM	#39
Servicetech Apprentice EcoRenovator Join Date: Nov 2013 Location: Moore Oklahoma Posts: 267 Thanks: 108 Thanked 23 Times in 21 Posts	My standard 1/3 PSC motor only uses 345W on low speed, 480W on high speed. Payback time would be considerably longer... Motor is $250? Is CFM the same with both blower motors?