triple aquastat

lchmb

It's easier to just let Honeywell explain

http://www.honeywell.ca/water-controls/

Click on product's, then choose the 8124 and I believe the information reference the differential is on page 10..Just click on operation and it explains it all...:)

WPH2205

triple aquastat

Okay, one more time. Can someone PLEASE explain the operation of the differential on an L8124 triple aquastat regarding the high and low limit settings? Thank you in advance.

Alan R. Mercurio_3

From Honeywell

OPERATION of the Tripple Aquastat

High Limit Controller:

The high limit opens and turns off the burner when the
water temperature reaches the set point. The high limit
automatically resets after the water temperature drops
past the set point and through the 10°F (6°C) differential.

Low Limit and Circulator Controllers:

On a temperature rise, with the adjustable differential at the minimum setting of 10°F (°C), the burner circuit (R-B) breaks and the circulator circuit (R-W) makes at the control set point. On a temperature drop of 10° F (6°C) below the set point, the R-B circuit makes and the R-W circuit breaks. At any differential setting greater than 10°F (6°C), the R-B make temperature and R-W break temperature will remain the same (control setting minus 10°F (6°C). The R-B break and R-W make temperature will be the set point temperature plus the difference between the differential setting and 10°F (6°C). EXAMPLE:Set point of 140°F (60°C) differential set at 25°F(14°C). On a temperature rise, R-B will break and R-W will make at 155°F (68°C). On a temperature fall, R-B will make and R-W will break at 130°F (54°C).

On the L8124M, the burner and circulator circuits are
controlled separately.the low limit controls the burner circuit(R-B) as described above, while the low voltage thermostat directly controls the circulator circuit

Setting:

Follow the boiler manufacturer recommendation when making
the L8124 settings. The high limit setting must be at least 20°F(11°C) higher than the low limit setting. Place the indicatorsover the selected temperature marks. The low limit differentialis set by turning the differential adjustment knob to the desired amount of differential.



Your friend in the industry,
Alan R. Mercurio

www.oiltechtalk.com

lchmb

OK

Alan how did you copy that? I couldn't get it to copy..:(

Alan R. Mercurio_3

It’s a very common question that comes up often so I took the time one evening a while back to type it onto a word doc and add to my tech files in an effort to help our fellow techs when necessary.

Now if you would like you can cut and paste it from here to a word doc of your own and add it to your tech files

Your friend in the industry,
Alan R. Mercurio

www.oiltechtalk.com

lchmb

Thanks Alan

done, one can never have enough information. Thanks for all you do Alan!!

Alan R. Mercurio_3

You're very welcome brother. It's always my pleasure to help when ever I can.

Your friend in the industry,
Alan R. Mercurio

www.oiltechtalk.com