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01-24-2010, 09:41 AM
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#1
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HVAC Tech/ Browns Fan
Join Date: Dec 2009
Location: Dayton, ohio
Posts: 539
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Heat TXV for Lennox
I been over the past 2 years replacing tons of 410 TXV. Matter fact just last week with the cold snapp. I replace 7 heat TXV out of Lennox. I like to know if anyone eles is getting better luck with this 410 A heat TXV.
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01-24-2010, 09:53 AM
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#2
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Hvac Pro
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 6,601
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Heat TXV for Lennox
Why are you replacing them. Bulb losing charge? failing closed? Did one company install all those units? Did you phone Lennox tech support to see if there was a bad series of them. Lennox did not make the valves, Sporlan or someone else did.
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01-24-2010, 09:58 AM
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#3
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HVAC Tech/ Browns Fan
Join Date: Dec 2009
Location: Dayton, ohio
Posts: 539
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Heat TXV for Lennox
Quote:
Originally Posted by yuri
Why are you replacing them. Bulb losing charge? failing closed? Did one company install all those units?
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TXV Closed down. Lennox has been having promblem with them for awhile but Lennox say the tXV is not made by them. They said other system brand names are using the same ones.
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01-24-2010, 10:00 AM
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#4
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Hvac Pro
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 6,601
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Heat TXV for Lennox
Probably a bad batch of valves, I get 2 a year on A/C's which fail closed.
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01-24-2010, 10:07 AM
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#5
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HVAC Tech/ Browns Fan
Join Date: Dec 2009
Location: Dayton, ohio
Posts: 539
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Heat TXV for Lennox
Quote:
Originally Posted by yuri
Probably a bad batch of valves, I get 2 a year on A/C's which fail closed.
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Well I was talking about Heat TXV. I had notice that the Cooling TXV is not have any major promblems.
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01-24-2010, 10:09 AM
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#6
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Hvac Pro
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 6,601
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Heat TXV for Lennox
Same concept. If Sporlan/Alco has a bad batch of valves the scenario is the same.
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01-24-2010, 10:39 AM
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#7
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 18,627
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Heat TXV for Lennox
TXV(manufacturers) had some problems for a while. they couldn't keep up with the demand. And the QC dropped off. All brands had troubles because of it for a while.
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01-24-2010, 10:42 AM
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#8
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Hvac Pro
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 6,601
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Heat TXV for Lennox
Yah, probably due to the housing boom 5 yrs ago.
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01-24-2010, 10:46 AM
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#9
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 18,627
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Heat TXV for Lennox
Quote:
Originally Posted by yuri
Yah, probably due to the housing boom 5 yrs ago.
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Plus.
Most newer high efficiency units use TXVs, so that added demand.
The switch over to R410A added more demand.
I remember about 2 to 3 years ago. TXVs were in short supply.
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01-24-2010, 10:48 AM
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#10
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Hvac Pro
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 6,601
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Heat TXV for Lennox
Yah, but that still is no excuse for poor quality control.
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01-24-2010, 10:57 AM
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#11
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 18,627
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Heat TXV for Lennox
Quote:
Originally Posted by yuri
Yah, but that still is no excuse for poor quality control.
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Nope.
But it is what it is.
We suffer for manufacturers to make a profit, and fulfill contracts.
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01-24-2010, 11:02 AM
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#12
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Hvac Pro
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 6,601
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Heat TXV for Lennox
But it is nice clean easy work.  Better than yanking greasy old fan bearings out. Ran into a awful 50 yr old millivolt TECO furnace a week ago in a rental. Some DIY genius installed a double shafted washing machine motor for a fan motor, open wiring, no ground etc etc. Heat exchanger was still amazingly intact. I condemned it and they bought a new G51.
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01-24-2010, 11:07 AM
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#13
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 18,627
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Heat TXV for Lennox
I like when they change out a shaded pole motor. With a BIGGER HP PSC motor.
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01-24-2010, 11:11 AM
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#14
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Hvac Pro
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 6,601
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Heat TXV for Lennox
Or when they went to the hardware store and got a table saw motor with NO rubber isolation mounts between the motor and cradle and fired it up. Sounds louder than the old one, wonder why?
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01-24-2010, 11:14 AM
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#15
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 18,627
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Heat TXV for Lennox
Quote:
Originally Posted by yuri
Or when they went to the hardware store and got a table saw motor with NO rubber isolation mounts between the motor and cradle and fired it up. Sounds louder than the old one, wonder why?
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ROFL 
But why do I have to buy a new motor from you, can't you just make this one quieter.
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