Beckett 7600 User Manual
PARTS & ACCESSOR IES
Quick RefeRence Guide
The Beckett AquaSmart is an advanced boiler control designed for use on residential and light commercial
boiler systems. All models include the option of enabling Beckett HeatManager™ dynamic temperature reset
that, when selected, provides up to 20% fuel consumption savings. The control includes a backlit LCD digital
display with touch pad to easily program temperature limits, differentials, and other advanced options. The
AquaSmart also has memory storage of system history for help with diagnostics and troubleshooting.
Please refer to the AquaSmart Owner’s Manual for more detailed instructions and advanced
programming options.
Technical Specications
Do Not Use This Control in an Application that is Not Within the Ratings
Listed in This Section. Improper Control Operation May Result.
Electrical Ratings
Input Voltage: 120 Vac - 50/60 Hz.
Input Current: 0.1 A + B1 + C1 + ZC
MAX Input Current: 20A (Reduce to 15A if optional
power switch is used)
24 Vac Thermostat Anticipator Current: 0.1 Amp.
Burner Current Rating (B1):
7600A (oil): 7.4 A at 120 Vac FLA; 44.4 A inrush LRA.
7600B (gas): 1.25 A at 24 Vac; 30 VA (total load).
Circulator Current Rating (C1): 7.4 A at 120 Vac FLA;
44.4 A inrush LRA.
Zone Control Current Rating (ZC): 7.4 A at 120 Vac
FLA; 44.4 A inrush LRA.
Temperature Ranges and Differentials
High Limit Setting Range: 100 to 240°F (38 to 116°C)
○
High Limit Differential Range: 5 to 45°F (3 to 25°C)
○
Low Limit Setting Range: 100 to 220°F (38 to 104°C)
○
Low Limit Differential Range: 10 to 45°F (6 to 25°C)
○
Factory Range Stops available - consult factory
○
Environmental Ratings
Storage Temperature: -40 to +150°F (-40 to +65°C)
○
Operating Temperature: -4 to +150°F (-20 to +65°C)
○
Maximum Sensing Element Temperature: 250°F (121°C)
○
Relative Humidity: 5 to 85% RH, non-condensing and
○
non-crystallizing
Approvals
Underwriters Laboratories Recognition to UL353, UL1998 for U.S. and Canada
Electrical Shock, Fire, Explosion and Burn Hazards
This control must be installed, adjusted and put into operation only by a trained, licensed, qualied
professional or service agency in accordance with the National Electric Code ANSI/NFPA 70 (Canada CSA
C22.1) state, local codes and authorities having jurisdiction.
The installer must carefully read and follow the installation and service instructions contained in this pamphlet and in
the owner’s manual. Make them available to the equipment owner, so they can be kept for future reference.
Figure 1 - Getting to know the AquaSmart 7600 Series Control
Communication Port
TW/TR Terminals
Sensor Mount
Disconnect Switch (Optional)
Clamping Screw For Sensor
Installation
OEM Installation: When replacing an OEM-installed
AquaSmart, consult the appliance manufacturer’s wiring
diagrams and instructions for additional information.
Retrot Installation: The AquaSmart can be used to
replace most standard boiler temperature controls. For a
cross-reference of compatible replacements, refer to
Owner’s Manual.
There are two basic methods for mounting the AquaSmart
to the boiler.
Sensor/Immersion Well Mounting – This is the
1.
most common method. If the existing well is not
suitable for any reason, a standard design aftermarket
immersion well with the proper dimensions can be
purchased from a HVAC distributor. The AquaSmart
can then be mounted in the typical way.
Surface Mounting – This is sometimes required
2.
and is part of the AquaSmart base design. The base
has adequate clearance built-in to accommodate the
temperature sensor lead exiting the back of the
control. A 48” extension cable (Pt. No. 52120) can
be purchased separately for applications where
needed.
Basic Programming
To ensure smooth appliance operation, the AquaSmart
requires a separation between the High and Low limits no
less than the greater differential plus 5°F.
For example: If the High Limit is set to 180°F, the High Diff
to 20°F, and the Low Diff to 10°F, the control will not allow
a Low Limit above 155°F (180°F - 20°F [the greater of the
two differentials] - 5°F = 155°F).
A. Temperature High Limit
In any mode or screen other than an OPTION sub-
1.
menu, press the “HIGH LIMIT” key.
The temperature displayed is the current setting.
2.
Use the ▲ and ▼ keys to select the desired setting.
Tap the button to increase or decrease the
temperature by 1°, or hold it to increase or decrease
the temperature by 5° at a time.
Press the “ENTER (RESET)” key. Conrm the
3.
setting by pressing “ENTER (RESET)” again if the
value is correct, or “CANCEL (BACK)” if it is not.
Page 2
Touch Pad
Sensor Jack
B. Temperature Low Limit
In any mode or screen other than an OPTION sub-
1.
menu, press the “LOW LIMIT” key.
The temperature displayed is the current setting.
2.
Use the “▲” and “▼” keys to select the desired
setting. Tap the button to increase or decrease the
temperature by 1°, or hold it to increase or decrease
the temperature by 5° at a time. For cold-start
operation, turn the low limit off by pressing the down
arrow key repeatedly until OFF is displayed.
IMPORTANT: To prevent ue gas condensation and
reduce fatigue caused by thermal cycling on
conventional (non-condensing) boilers, the LOW
LIMIT set point should be 150° F or above.
NOTE: Boiler manufacturer’s temperature
requirements supersede this recommendation.
Press the “ENTER (RESET)” key. Conrm the
3.
setting by pressing “ENTER (RESET)” again if the
value is correct, or “CANCEL (BACK)” if it is not.
C. Temperature High Limit Differential
In any mode or screen other than an OPTION sub-
1.
menu, press the “HIGH DIFF” key.
The temperature displayed is the current setting.
2.
Use the “▲” and “▼” keys to select the desired
setting. Tap the button to increase or decrease the
temperature by 1°, or hold it to increase or decrease
the temperature by 5° at a time.
Press the “ENTER (RESET)” key. Conrm the
3.
setting by pressing “ENTER (RESET)” again if the
value is correct, or “CANCEL (BACK)” if it is not.
D. Temperature Low Limit Differential
In any mode or screen other than an OPTION sub-
1.
menu, press the “LOW DIFF” key.
The temperature displayed is the current setting.
2.
Use the “▲” and “▼” keys to select the desired
setting. Tap the button to increase or decrease the
temperature by 1°, or hold it to increase or decrease
the temperature by 5° at a time.
Press the “ENTER (RESET)” key. Conrm the
3.
setting by pressing “ENTER (RESET)” again if the
value is correct, or “CANCEL (BACK)” if it is not.
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