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Old 03-07-2010, 05:40 PM   #1
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Wiring Tradeline L6006C Aquastat to Lennox CBWMV Hydronic Air Handler


Hello to all those wiser than myself,

I'm attempting to install a Tradeline (Honeywell) L6006C strap-on Aquastat on a Lennox CBWMV (Heat only) Hydronic Air Handler. The Lennox unit is being fed by a Wall Hung Quietside DPW-120A Dual Purpose Tankless Water Heater. The purpose of the Aquastat will be to prevent the Air Handler Blower Motor from coming on in the event the water temperature in the Heating Coil drops below 160. This happens from time to time due to the fact that the Quietside unit also provides Domestic Hot Water to the home, and possesses DHW priority. Therefore, when domestic hot water is in use, no hot water is provided to the closed loop heating side of the system. So if you are running hot water and the Thermostat calls for heat at the same time, you get that dreaded cold air blast! According to the manufacturer wiring an Aquatat to the Air Handler Blower will prevent this.

I have installed the L6006C Aquastat on the CBWMV's Heating Coil. My question is: What is the correct method of wiring the Aquastat to the Lennox CBWMV unit. I have provided links to photos and schematics for the Lennox CBWMV Air Handler unit and the Tradeline L6006C Aquastat.

Lennox CBWMV Wiring Diagram:
http://farm5.static.flickr.com/4064/...acd1ea9b_b.jpg

Lennox CBWMV Control Box Photo 1:
http://farm5.static.flickr.com/4021/...71ea2cb9_b.jpg

Lennox CBWMV Control Box Photo 2:
http://farm3.static.flickr.com/2749/...26b797a2_b.jpg

Lennox CBWMV Control Box Photo 3:
http://farm5.static.flickr.com/4053/...9232a341_b.jpg

Lennox CBWMV Control Box Photo 4:
http://farm5.static.flickr.com/4043/...01ca05c0_b.jpg

Lennox CBWMV Control Box Photo 5:
http://farm5.static.flickr.com/4069/...b88f9152_b.jpg

Lennox CBWMV Control Box Photo 6:
http://farm3.static.flickr.com/2747/...3e2cc4b5_b.jpg

Honeywell L6006C Aquastat Specs:
http://customer.honeywell.com/techli...0s/60-2104.pdf

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Old 03-07-2010, 06:06 PM   #2
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Wiring Tradeline L6006C Aquastat to Lennox CBWMV Hydronic Air Handler


An L6006 is just a switch. Power comes in on R. R/B is normally closed and will open on a temperature rise and R/W is normally open and will close on a temperature rise. the control can be used for either high or low voltage.

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Old 03-07-2010, 06:26 PM   #3
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Wiring Tradeline L6006C Aquastat to Lennox CBWMV Hydronic Air Handler


I understand the concept of the Aquastat. It's the correct tie-in location in this type of application I'm unsure of. Do I wire it directly to the T-Stat leads? or do I wire it directly to the blower motor leads? I would like to retain "Fan Only" mode if possible.
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Old 03-07-2010, 07:35 PM   #4
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Wiring Tradeline L6006C Aquastat to Lennox CBWMV Hydronic Air Handler


wire it to the tt leads
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Old 03-10-2010, 05:56 PM   #5
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Wiring Tradeline L6006C Aquastat to Lennox CBWMV Hydronic Air Handler


I do not see any TT leads on the CBWMV unit.
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Old 03-15-2010, 06:37 PM   #6
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Wiring Tradeline L6006C Aquastat to Lennox CBWMV Hydronic Air Handler


Thanks for everyone's input. After days of studying wiring diagrams and online posts, I am now confident that this is the correct way to wire the Aquastat for my application (please see wiring diagram below). If anyone feels otherwise, please, your input would be much appreciated.


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