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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
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.
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.
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
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.
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.
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.
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.
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.
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.
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
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Copyright © D 261 - 0
3/09
7 of 20
Fancoil (3)
A fancoil terminal unit or air handling unit (AHU) consists of a hydronic heating coil and
either a fan or blower. Air is forced across the coil at a constant velocity by the fan or
blower, and is then delivered into the building space.
Default values: BOIL DSGN = 190
either a fan or blower. Air is forced across the coil at a constant velocity by the fan or
blower, and is then delivered into the building space.
Default values: BOIL DSGN = 190
°F (88°C), BOIL MAX = 210°F (99°C),
BOIL MIN = 140
°F (60°C)
Fin–tube Convector (4)
A convector terminal unit is made up of a heating element with fins on it. This type of
terminal unit relies on the natural convection of air across the heating element to deliver
heated air into the space. The amount of natural convection to the space is dependant
on the supply water temperature to the heating element and the room air temperature.
Default values: BOIL DSGN = 180
terminal unit relies on the natural convection of air across the heating element to deliver
heated air into the space. The amount of natural convection to the space is dependant
on the supply water temperature to the heating element and the room air temperature.
Default values: BOIL DSGN = 180
°F (82°C), BOIL MAX = 200°F (93°C),
BOIL MIN = 140
°F (60°C)
Radiator (5)
A radiator terminal unit has a large heated surface that is exposed to the room. A radiator
provides heat to the room through radiant heat transfer and natural convection.
Default values: BOIL DSGN = 160
provides heat to the room through radiant heat transfer and natural convection.
Default values: BOIL DSGN = 160
°F (71°C), BOIL MAX = 180°F (82°C), Hp deskjet 540 printer users manual.
BOIL MIN = 140
°F (60°C)
Baseboard (6)
A baseboard terminal unit is similar to a radiator, but has a low profile and is installed at
the base of the wall. The proportion of heat transferred by radiation from a baseboard is
greater than that from a fin-tube convector.
Default values: BOIL DSGN = 150
the base of the wall. The proportion of heat transferred by radiation from a baseboard is
greater than that from a fin-tube convector.
Default values: BOIL DSGN = 150
°F (66°C), BOIL MAX = 170°F (77°C),
BOIL MIN = 140
°F (60°C)
Section B3: Advanced
BOILER INDOOR (BOIL INDR)
The BOIL INDR is the room temperature used in the original heat loss calculations for the building. https://everuae301.weebly.com/htc-desire-510-user-manual-pdf.html. This setting establishes the
beginning of the
beginning of the
Characterized Heating Curve for the boiler zones.
BOILER DESIGN (BOIL DSGN)
The BOIL DSGN temperature is the supply water temperature required to heat the boiler zones when the outdoor air temperature is as
cold as the OUTDR DSGN temperature.
cold as the OUTDR DSGN temperature.
BOILER MAXIMUM (BOIL MAX)
The BOIL MAX is the highest water temperature that the control is allowed
to calculate as the BOIL TARGET temperature. If the control does target
the BOIL MAX setting, and the BOIL temperature is near the BOIL MAX
temperature, the MAX segment will be displayed in the LCD while either
the BOIL TARGET temperature or the BOIL temperature is being viewed.
At no time does the control operate the boiler above 248
to calculate as the BOIL TARGET temperature. If the control does target
the BOIL MAX setting, and the BOIL temperature is near the BOIL MAX
temperature, the MAX segment will be displayed in the LCD while either
the BOIL TARGET temperature or the BOIL temperature is being viewed.
At no time does the control operate the boiler above 248
°F (120°C).
BOILER MINIMUM (BOIL MIN)
The BOIL MIN is the lowest water temperature that the control is allowed
to use as the BOIL TARGET temperature. During mild conditions, if the
261 calculates a BOIL TARGET temperature that is below the BOIL
MIN setting, the BOIL TARGET temperature is adjusted to at least the
BOIL MIN setting. During this condition, if the boiler is operating, the
MIN segment turns on in the LCD while the BOIL TARGET or BOIL
temperature is being viewed. If the installed boiler is designed for low
temperature operation, set the BOIL MIN adjustment to OFF.
to use as the BOIL TARGET temperature. During mild conditions, if the
261 calculates a BOIL TARGET temperature that is below the BOIL
MIN setting, the BOIL TARGET temperature is adjusted to at least the
BOIL MIN setting. During this condition, if the boiler is operating, the
MIN segment turns on in the LCD while the BOIL TARGET or BOIL
temperature is being viewed. If the installed boiler is designed for low
temperature operation, set the BOIL MIN adjustment to OFF.
WWSD OCC
ROOM OCC
70
(21)
90
(32)
110
(43)
130
(54)
150
(66)
170
(77)
190
(88)
Outdoor Air Temperature
Supply W
ater
T
emperature
210
°F
![Khind Khind](/uploads/1/3/3/8/133864720/143330893.jpg)
(99
°C)
-20
(-29)
0
(-18)
(-7)
40
(5)
60
(16)
80
°F
(27
°C)
BOIL DSGN
BOIL MIN
WWSD UNOCC
BOIL INDR
OUTDR DSGN
Khind Double Boiler Db601 Recipe
Boiler Characterized
Heating Curve
50
How To Use Khind Double Boiler Db601
(10)
ROOM UNOCC
BOIL MAX
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