Honeywell Electronic Aquastat Control - Heating, Ventilation, and Air Conditioning (HVAC) - Do-It-Yourself Appliance Repair Help

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Honeywell Electronic Aquastat Control

Moderated by: hvacdrd, Pegi

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Mr. Lee Fix
Scholar of Advanced Appliantological Studies

Joined:	Sun Jan 14th, 2007
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Posted: Sun Feb 3rd, 2008 14:35

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Just finished installing a new Weil Mclane oil fired hot water boiler which came with a Honeywell Electronic Aquastat Control #L7224/L7248. Boiler temp reaches 180*F for the baseboard heat, however the domestic hot water seems to fire the boiler everytime you open the faucet and it fires often, with seemingly a 10*F threshold for firing. This appears to be the default setting. I don't have, nor did I get any info for instituting a change for increasing the difference in water temp firing (25*F or so would be fine).

The boiler is a WTGO-4 with a tankless hot water coil. I know that currently I have immediate recovery, but this is too small a differnce for me and it results in near continuous firing when it's being used for domestic water. Does anyone know the procedure, or know where I can find the directions. I couldn't find squat on the Honeywell site. I'm not a technician, but I can do this stuff without a problem (once I know how). Thanks.

hvacdrd
Fellow, Academy of Sublime Masters of Appliantology

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Posted: Sun Feb 3rd, 2008 15:24

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Here is the Installer Guide and the Technicians Quick Reference Guide that should get you going. Not all models have the Low Limit differential adjustment.

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Mr. Lee Fix
Scholar of Advanced Appliantological Studies

Joined:	Sun Jan 14th, 2007
Location:	Betwil, Vanuatu
Posts:	28
Flavorite Brew:	A-D Haze & Iron Cruellar
Status:	Offline

Posted: Sun Feb 3rd, 2008 16:22

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Thank you. I had just found a small pamphlet on the Aquastat which is helpful, however your info should do the trick. It will need to wait a little however as it is now time to do the rear disc brake rotors, pads, grease, etc. Thank you very much.

An offering for the Gods of Brewology will be forthcoming. Domo Arigato, Mr. Roboto!

Chow! (It is Superfeast Sunday)

Mr. Lee Fix

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The Samurai Appliance Repair Forums > Do-It-Yourself Appliance Repair Help > Heating, Ventilation, and Air Conditioning (HVAC) > Honeywell Electronic Aquastat Control

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