Combination control or primary control on heating boilers: this control, such as a Honeywell R8182D combine High Limit and "Low Limit" boiler controls (The dial marked "low limit" on a combination control may or may not be in use depending on presence of a tankless coil).
AquaSmart Boiler Temperature Control | Beckett Corp.
Oct 01, 2012 · Boiler is a Kerr Comet 145 Oil Fired hot water boiler. I currently have the High and Low temp settings in the aquastat set at ~150'F on each. This kicks the boiler out at about 180'F. Haven't been able to catch when it comes on though. Run time is ~5 minutes when it does turn on to bring it up to temp.
Feb 11, 2008 · 0. tk_3 Member Posts: 36. February 2008. Remember the low setting does not determine your heating water. The boiler on a call for heat will run to high limit. A setting of 160/140 will allow the boiler to go to 160 on a call for heat. I would suggest 140/180 and a differential setting of 25. 0.
Conventional boiler is designed to operate with dry exhaust gases. The lowest temperature of the water running to the boiler is limited to the value of 60°C. The exhaust gases temperature is usually in the range of 120 to 180°C. As connected to the heating system, the boiler must be fitted with a device ensuring a sufficiently high temperature of the water running to the boiler (return water) to prevent condensation …
99% at low fire and 95% at high fire with 80 degrees F return water temperature. Ease of Maintenance The powder coated steel casing is designed for easy removal and re-assembly. As shown in Figure 1, the burner is hinged and is provided with hydraulic pistons for simple opening for service of the spark
I just put a new temperature gauge on front of my boiler and for an Aquastat setting of 180 for high the gauge temp goes up to 220 . I set the aquastat to 160 low and high temp reaches 200 .So it's about 40 degrees off . The aquastat is a Honeywell L8124C and probably about 15 to 20 years old .
Aquastat settings: Best High, Low, & DIFF Settings on a
What is the difference between a conventional, low-temperature and condensing boiler…