Beckett Boiler - Manual (Page 3)

Advanced 2N1 Self-checking Sensor: The 2N1 AquaSmart sensor measures both “boiler water temperature” and “presence of wa-
ter” (low water cut-off) functions. The AquaSmart’s 2N1 sensor continually performs internal self-checks to determine if the sensor is
operating properly. With the AquaSmart you can also view Boiler Cycle History
8. Is the AquaSmart available for Gas applications?
Yes, both Oil and Gas offerings are available.
9. What can cause the AquaSmart to lockout?
There are four reasons for the AquaSmart to lockout.
The AquaSmart will lockout when the 2N1 Self-checking Sensor either detects an internal error or is not communicating prop-
erly with the control. The AquaSmart will not reset from this condition until it can detect a properly working sensor.
When an internal safety check, such as the check on the B1 relay contacts has failed, the control will lockout. To reset from this
condition hold the “ENTER (RESET)” key for 5 seconds. If the error occurs again, replace the control.
The AquaSmart will lockout when the “ENTER (RESET)” key is held for 5 seconds or longer. (Manual Shutdown) The control’s
operation will be temporarily suspended and will resume normal operation once the “ENTER (RESET)” button is released.
The AquaSmart will lockout when a low water condition is detected. If the control is set to “MAN” you will need hold down the
“ENTER (RESET)” key for 5 seconds. If the control is set on “Auto” it will reset automatically.
10. What options do I have when mounting the AquaSmart?
There are two basic mounting options for the AquaSmart™ control, the immersion well method and the surface method. The surface
method is also referred to as a wall mount. Mounting the AquaSmart directly to the immersion well is the most common method. The
AquaSmart temperature sensor mounts in standard immersion wells. Surface mounting is sometimes required and is part of the
AquaSmart™ base design. It is also retrofi t compatible with most standard boiler temperature controls.
11. When wiring the AquaSmart does the color of the wires have any signifi cance?
Besides for using the white wire for neutral, black for hot and green for the ground there is no signifi cance to the colors of the wires.
On the other hand the terminals on the AquaSmart are approved for copper wire only.
12. What are the electrical ratings for the AquaSmart?
The Burner Circuit is 120Vac for the oil control and 24Vac for gas while the Circulator Control is 120Vac. The AquaSmart has a
120Vac Zone Control and is 24 Vac thermostats compatible.
13. Since the AquaSmart is made of plastic will the wiring knockouts hold up?
Yes, the AquaSmart control has fi ve different knockouts. There is one on both the right and left side and three more on the bottom of
the unit. The knockouts are reinforced with a steel plate to secure conduit connectors and provide grounding.
14. How diffi cult is the AquaSmart to program?
The AquaSmart control is equipped with an installer easy-to-use keypad along with a prominent
backlit LCD digital display. All of the basic functions, including High and Low Limit and High and
Low Differential are easily accessible on the face of the programming panel.
15. What happens if I inadvertently select temperature settings that overlap each other?
The AquaSmart will not allow overlapping temperature settings to be selected. For example: If the HIGH LIMIT is set to 180°F and
both the HIGH DIFF and LOW DIFF are set to 10° F, the control will not allow a LOW LIMIT above 165° F to be entered.
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R.W. Beckett Corporation | P.O. Box 1289 | Elyria, Oh 44036 | 1-800-645-2876
2N1 Sensor with Low
Water Cut-off