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L7103 honeywell aquastat for hot water heater

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How do I disable low limit


WHY???????????????????
Only common sense option is to remove the Aquastat as you can adjust the lower limit down but NOT disable it. Bigger question may be What are you trying to do and do you know what you are doing???
Aquastats are made to START and STOP Pumps in Recirculation systems at settable limits not run them 24/7.
Running a pump 24/7 voids the heater warranty.

Sep 11, 2014 | Honeywell L8124a 1007 Triple Aquastat...

1 Answer

What can i do to get my water heater heating the water hot enough for a hot shower, water is just warm these days?. Any suggestion?


There's an, "Aquastat " on the water heater, turn it up one increment and see if that helps. The water heater should turn on in under a minute if it's functioning properly.

Jul 07, 2014 | Stiebel Eltron Water Heaters

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Which contacts do I connect the boiler to? I thought it was the TT, but I am not getting any voltage on them.


Here is a link, that includes the wiring diagram:
http://www.forwardthinking.honeywell.com/related_links/water/aq2000/install/69_1974.pdf

It looks like the 'T-T' terminals match up with 'T-T' terminals on the Boiler Aquastat-- Do you see that control?-- and do you have wires between those controls.
Power to this Control Module is all the way to the left on the connector terminal board-- the ones that say:
R (1) C (2) - Power In

Also: Did you realize that this control is a modulating control-- Not just an 'On-Off' control?
This control has outdoor sensors, that modulate the temperature of the water temperature-- The warmer it is outside, the lower it sets the Hot Water Temperature-- thus saving fuel-- yet assuring that on very cold days, you still get Hot enough water to be comfortable in your occupied space.

Oct 12, 2013 | Honeywell AQ25142B Aquatrol Boiler Reset...

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Want to raise the water temp


Stand alone water heaters have temperature controls in different locations.

11_23_2012_12_50_47_pm.jpg
Most residential electric water heaters operate on 240 volts. Please, shut off power first whenever you need open or remove panels for adjustments or servicing.

"Traditional" electric water heaters have them behind removable panels - like the top and bottom gray panel on the water heaters on the right side of the photo. Both panels have adjustable controls behind them and both should be adjusted to the same setting.

Some newer electric water heaters use electronic controls. These may be accessible without removing panels and even have digital displays. Others have controls that are located on the top of the heater - behind a panel. Electronically controlled water heaters may or may not need to be powered on when making adjustments. Check your manual if in doubt.

Gas (propane & natural gas) type water heaters have the temperature control on the gas valve. There are often two controls on the valve, one for the pilot (off, light and on positions) and a second for temperature adjustment.

A tankless water heater built into your home's furnace is controlled by an "aquastat". An aquastat is a fancy term for a thermostat to control water temperature. A typical aquastat is mounted directly on or very near the furnace and looks like this:

11_23_2012_1_08_47_pm.jpg
Inside, are several temperature settings. Here's a photo of the interior of the Honeywell aquastat:


11_23_2012_1_12_16_pm.jpg
The Hi dial should never be set to a value lower than the Lo dial. "Safe" settings are Hi = 180, Lo = 160 and Diferential (above "Lo") = 10. You'll need to tweak these up a bit to make water hotter. You should read more about settings for these aquastats here. Skip down to the section titled "What Settings To Use on a Heating Boiler Aquastat Combination Control"

I hope this helps & good luck!

Nov 22, 2012 | General Electric GE SmartWater Household...

1 Answer

Water only gets hot if the heating is also on and the tap flow is slow


Hi,

You have two totally unrelated problems there...

The aquastat is bad and is not turning on the boiler if there is no call for heat... therefore no hot water....

The low flow is because the coil is full of mineral and the water can not flow through the coil...
Get the inside of the coil acis cleaned to get rid of the mineral inside...

Also get the triple aquastat replaced and your good again...

heatman101

Dec 13, 2010 | Water Heaters

1 Answer

I want to increase the boiler temp by using the your aquastat


Warning! Can cause electrical shock! Here is the instruction manual
for L7248c
http://customer.honeywell.com/techlit/pdf/PackedLit/68-0281.pdf

Jan 12, 2009 | Water Heaters

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