Beckett Boiler User Manual

Frequently Asked Questions
1. What is the AquaSmart?
2. What is the Beckett HeatManager calculation?
3. How does this new HeatManager logic compare the HeatManager Classic we are familiar with?
4. How do you know how to set the HeatManager function for different applications?
5. How will the new HeatManager calculation interact with a system utilizing a tankless coil?
6. Does the AquaSmart have any other fuel effi ciency features?
7. What other advanced features does the AquaSmart have?
9. What can cause the AquaSmart to lockout?
10. What options do I have when mounting the AquaSmart?
11. When wiring the AquaSmart does the color of the wires have any signifi cance?
12. What are the electrical ratings of the AquaSmart?
13. Since the AquaSmart is made of plastic will the wiring knockouts hold up?
14. How diffi cult is the AquaSmart to program?
15. What happens if I inadvertently overlap temperature settings to be selected?
16. Generally, what is the typical operation of the AquaSmart?
17. How can I be sure that I have installed the AquaSmart correctly?
18. Does the AquaSmart provide any other benefi ts?
1. What is the AquaSmart?
The Beckett AquaSmart is an advanced triple acting boiler temperature control (BTC) designed for use on residential and light com­mercial boiler systems. A triple acting BTC incorporates a High and Low limit with differential functions. The triple acting BTC also controls circulator functions. This employs a BTC that acts in reverse. The reverse BTC opens to turn the circulator off if boiler water temperature drops below a set temperature, typically to maintain a minimum boiler temperature in both the High and Low limit func­tions. The circulator circulates the heat transfer fl uid to the heated zone. The Beckett AquaSmart comes equipped with the Depart- ment of Energy (DOE) 2012 compliant HeatManager. All models include the option of enabling the Beckett HeatManager load-match­ing energy saving calculation. When selected it provides up to 20% fuel consumption savings.
2. What is the Beckett HeatManager Calculation?
The HeatManager saves fuel by dynamically changing the temperature high operating limit to the minimum temperature necessary to meet the heating demand. The contractor can adjust the HeatManager calculation to maximize comfort or energy savings. The HeatManager calculation is designed to operate the boiler at its lowest possible temperature while still meeting the heating demand. By dynamically changing the boiler temperature, it is designed to reduce the energy used by the system without sacrifi cing comfort.
R.W. Beckett Corporation | P.O. Box 1289 | Elyria, Oh 44036 | 1-800-645-2876
Form No. 61772 R00, Printed in the USA 10/10
3. How does this new HeatManager logic compare to the HeatManager Classic we are familiar with?
As opposed to the new HeatManager calculation the Beckett HeatManager Classic works to hold off the burner from fi ring if the outlet water temperature from the boiler is warm enough to still heat the home. This causes the burner to cycle less and indirectly lowers the average boiler water temperature, which generates fuel savings. The Beckett AquaSmart HeatManager calculation adjusts the high limit of the boiler based how long the system is on or off. If the system is calling for heat, the adjusted high limit will increase over time but never above the high limit set point. If the sys­tem is not calling for heat, the adjusted high limit will decrease over time. The minimum temperature the AquaSmart will allow the adjusted high limit to drop is based on a number of factors including the high limit, low limit, differentials, and HeatManager effi ciency settings.
The AquaSmart HeatManager never overrides the low limit, which can be benefi cial in keeping hot water available in tankless coil systems. If Domestic Hot Water Priority (DHWP) is set on one of the AquaSmart’s inputs, a priority heat call will temporarily override the operation of the HeatManager.
4. How do you know how to set the HeatManager function for different applications?
The default HIGH effi ciency setting should work best for most systems. However, there are many system factors that may have an effect on its ability to react to changes quickly enough and supply adequate heat, such as the amount of connected radiation, boiler size, system design temperatures, etc. The effi ciency setting adjusts how aggressively the HeatManager calculation at- tempts to reduce the boiler operating temperature. If a loss of comfort is experienced, decreasing the effi ciency setting will help regain comfort at the expense of fuel savings.
5. How will the new HeatManager calculation interact with a system utilizing a tankless coil?
The HeatManager calculation will positively affect the hot water available in a system utilizing a tankless coil. Because the HeatManager does not change the low limit setting to accommodate the tankless coil or “hold off” the burner when it needs to fi re, you can expect more consistency in your hot water supply.
6. Does the AquaSmart have any other fuel effi ciency features?
Yes, one of the AquaSmart’s advanced features is the Circulator-off delay. Once the call for heat is satisfi ed the circulator-off delay holds the circulator pump on for the delay period. The Circulator-off Delay increases the effi ciency of the system by delivering more heat to the Zones instead of keeping it in the boiler or losing it up the chimney.
7. What other advanced features does the AquaSmart have?
There are several. They are as follows: Circulator-On Delay: Once a call for heat is received the Circulator-On Delay holds the circulator pump off for the delay period. This allows the boiler to heat up faster and spend less time in the condensing range. Consequently this reduces the amount of condensation produced, which enhances the life of the boiler. Domestic Hot Water Priority: The Domestic Hot Water Priority (DHWP) setting ensures that hot water will be produced when needed by temporarily overriding the HeatManager Dynamic Temperature Reset functionality when there is a call for domestic hot water. The Domestic Hot Water Priority has a maximum duration of twenty minutes. Circulator Seize-up Protection: There are times when the circulator may be inactive for an extended period of time, especially during the summer months. This feature will briefl y energize the circulator periodically exercising the circulator pump, which helps to prevent seize-up during the summer months. Automatic Freeze-up Resistance: Automatic Freeze-up Resistance is when the circulator circulates water to all zones calling for heat during most control or system failure modes which delays or prevents pipes from freezing. This normally happens when the burner has been in failure for one hour or the AquaSmart has been in lockout for one hour (Except in low voltage situations).
R.W. Beckett Corporation | P.O. Box 1289 | Elyria, Oh 44036 | 1-800-645-2876
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