EcoRenovator - View Single Post - A7 AirTap install (ASHP hot water heater)

Xringer · 07-08-12, 09:58 PM

I went back and read it again.. They don't want any power going into the HW heater...

Warnings
When installing the AirTap™on a gas or electric water heater, disconnect permanently the gas or power supply to the water heater while the AirTap™is being installed. The original gas/power supply to the gas/electric water heater shall remain disconnected after installation.

Seems odd to me. The Hybrid units being sold these days are using both modes of water heating..

Maybe the A7 is so good, they feel you don't need alternate heating coming in.

I guess using AC (or solar PV) is something to look at later.
I don't foresee needing alt-heat for a good while.

Now, I'm trying to figure out the best way to incorporate heat traps in the lines.
My GE manual shows a 6" (minimum) down loop on both water lines.
I could do it with PEX elbows, but I'm thinking some (four) 90 degree PEX bender brackets might be better.

A5150750 - Uponor (Wirsbo) A5150750 - 3/4" Plastic Bend Support
http://s3.pexsupply.com/images/produ...a5150750-3.jpg
I could run the Pex up 7.5" above the 3/4" copper, bend flat flat (against the kitchen sub-floor) and bend it back down to the copper..
That would avoid the use of a lot of elbows and the problems they cause.

07-08-12, 09:58 PM	#45
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	Correct I went back and read it again.. They don't want any power going into the HW heater... Warnings When installing the AirTap™on a gas or electric water heater, disconnect permanently the gas or power supply to the water heater while the AirTap™is being installed. The original gas/power supply to the gas/electric water heater shall remain disconnected after installation. Seems odd to me. The Hybrid units being sold these days are using both modes of water heating.. Maybe the A7 is so good, they feel you don't need alternate heating coming in. I guess using AC (or solar PV) is something to look at later. I don't foresee needing alt-heat for a good while. Now, I'm trying to figure out the best way to incorporate heat traps in the lines. My GE manual shows a 6" (minimum) down loop on both water lines. I could do it with PEX elbows, but I'm thinking some (four) 90 degree PEX bender brackets might be better. A5150750 - Uponor (Wirsbo) A5150750 - 3/4" Plastic Bend Support http://s3.pexsupply.com/images/produ...a5150750-3.jpg I could run the Pex up 7.5" above the 3/4" copper, bend flat flat (against the kitchen sub-floor) and bend it back down to the copper.. That would avoid the use of a lot of elbows and the problems they cause. __________________ My hobby is installing & trying to repair mini-splits EPA 608 Type 1 Technician Certification ~ 5 lbs or less..