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PARTS & ACCESSORIES
Description / Applications
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
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Table of Contents Features Features........................................................................ 2 ○ HeatManager™ dynamic temperature reset for Technical Specifi cations ............................................. 3 additional energy savings Electrical Ratings ..........................................................................3 — DOE 2012 Compliant Temperature Ranges and Differentials ..........................................3 — Meets NR CAN proposed 2012 requirements
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Figure 1 - Getting to know the AquaSmart 7600 Series Control Electrical Shock Hazard The AquaSmart control should only be operated with the door attached and securely closed. Communication Port TW/TR Terminals Sensor Mount Touch Pad Sensor Jack Clamping Screw For Sensor Power Disconnect Switch (Optional) Rotate door until grooves Pull door up are aligned Technical Specifi cations Temperature Ranges and Differentials Do Not Use This Control in ○ High Limit Setting Range: 100 to 240°F (37 to 115°
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Figure 2 - Basic Dimensions (inches) 3.51 4.92 4.50 3.04 6.50 5.38 .75 3.50 Figure 3 - Mounting Options Installation Sensor/Immersion Well Mounting: Mounting OEM Installation: When replacing an OEM-installed AquaSmart, consult the appliance manufacturer’s wiring diagrams and instructions for additional information. Retrofi t Installation: The AquaSmart can be used to replace most standard boiler temperature controls. For a cross-reference of compatible replacements, refer to Table 1. There
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AquaSmart Models and Cross-Reference Guide Table 1a - Direct Replacements Beckett Honeywell Notes Replacement Must confi rm that 7600 VA rating is adequate to meet VA requirements of system. L7148F (All) Make sure 7600 B1 output does not exceed 1.25A @ 24VAC (30 VA). 7600B L8148E (All) 7600 outputs are not rated for 240 VAC. B2, TW and TR terminals replace TV, T and Z, respectively. L8124A (All) 7600A 7600 outputs are not rated for 240 VAC. L8124C (All) L7124A/C (All) TM L7148A (All) The 7600 ha
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Table 1b (continued from previous page) Beckett Honeywell Notes Replacement 7600A or 7600B L4081A/B (Based on System Remove switching relay, if used, from the system when replacing the L4081 or L6081. L6081A/C Voltage Make sure 7600 outputs do not exceed 7.4A @ 120 VAC. 7600 outputs are not rated for 240 VAC. Requirements) Not a suitable replacement if SPDT switch action is required; only break-on-rise available on 7600. L6006A (All) 7600A or 7600B To use with a millivolt system an appropria
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1. Make sure the immersion well is clean inside, has no Removing the Control to be Replaced leaks, is of proper length and is otherwise suitable for receiving the new control and temperature sensor. Electrical shock hazard. 2. Replace questionable wells with new ones and use Disconnect all electrical power to the appliance pipe sealant to seal the threads. circuit before replacing the control. There may be 3. Grasp the sensor lead, just behind the sensor probe more than one disconnect s
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Installing the 2-in-1 Sensor Do not use in steam Explosion, applications. For use in Burn and Scald Hazards hot water boilers or water heaters only. Do Excessive water temperatures could cause explosion, not use outside of the intended use and burns, scalding, pressure relief fl ooding and fi tting leaks. specifi cations. The 2-in-1 Sensor shall only be installed by a trained professional. The sensor must be installed in the proper location Leak, Burn, and Scald for correct low water cut-
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Figure 6 - Sensor lead & ground screw connections 2-in-1 Installation Instructions This is very important for successful control operation. 1. Remove the existing immersion well. Clean the threads in the boiler port tapping. Follow all applicable safety codes, rules and guidelines for removing/ installing immersion wells. 2. Apply pipe sealant to the 2-in-1 sensor threads and install it securely into the port. BECKETT RECOMMENDS ONLY TO USE TEFLON TAPE OR RECTORSEAL NO. 5 PIPE SEALANT. a
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Figure 9 - Mounting Clamp and Screw for Immersion Well Installing the AquaSmart Control (Refer back to Figure 3 for appropriate mounting method). For clarity, the printed circuit board is not shown. Immersion Well or 2-in-1 Sensor 1. Mount the control by aligning the 7/8” diameter hole (found on back) around the mating feature of the immersion well or 2-in-1 sensor and press into place. Position the control upright and tighten down the #10 screw located on the left side of the control. T
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7600B only: TERMINALS TR (Z or Explosion Hazard. Can hot) and B2 (TV or ground) offer a Cause Severe Injury, Death 24-volt supply for operating other 24 VAC equipment on or Property Damage. the boiler. IMPORTANT: TO PREVENT DAMAGE TO THE CONTROL, DO NOT OVERLOAD THE Use this product only in systems with a pressure relief TRANSFORMER. The AquaSmart is equipped with a valve. 30VA transformer. Make sure that the total load, including the burner circuit and TR & B2 connections do Wiri
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Figure 12 - 7600A/B single-zone connections with or without a tankless coil AIR Water Flow: VENT AIR SEPARATOR P1 HEATING ZONE EXPANSION TANK COLD WATER INLET Control Wiring: 1. Set “DHWP OFF” (default, see programming section for instructions) 2. Set “C1 on TT” (default, see programming section for instructions) WHITE TW TR RED LOW VOLTAGE THERMOSTAT L2 L1 C1 C2 ZC ZR B1 B2 NEUTRAL WHITE 120 VAC 7600A: HOT BLACK 120 VAC BURNER OR FIELD/MFR. GAS IGNITION SYSTEM SUPPLIED 7600B: SERVICE 2
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* Additional zones can be added by duplicating Figure 13 - 7600A/B multi-zone connections the plumbing and wiring of zone 3. with or without a tankless coil Water Flow: AIR VENT AIR SEPARATOR P3* P1 P2 HEATING HEATING HEATING ZONE ZONE ZONE 1 2 3* EXPANSION TANK COLD WATER INLET Control Wiring (Option 1): Circulator-On and -Off Delays on Zone 1 ONLY 1. Set “DHWP OFF” (default, see programming section for instructions) 2. Set “C1 on TT” (default, see programming section for instructions) 3. Ci
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* Additional zones can be added by duplicating Figure 13 (continued) - 7600A/B multi-zone connections the plumbing and wiring of zone 3. with or without a tankless coil ◄ CONTINUED FROM PREVIOUS PAGE Control Wiring (Option 2): Circulator-On Delay on All Zones 1. Set “DHWP OFF” (default, see programming section for instructions) 2. Set “C1 on ZR” (see programming section for instructions) 3. Circulator-on delay will affect all zones. Circulator-off delay will have no effect. CIRCULATOR 120 VAC
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* Additional zones can be added by duplicating the Figure 14 - 7600A/B alternate multi-zone connections plumbing and wiring of zone 3, adding additional with or without a tankless coil transformers as needed. Water Flow: AIR VENT AIR SEPARATOR GENERAL CIRCULATOR ZONE 1 ZONE 2 ZONE 3* ZZZ 24 VAC 24 VAC 24 VAC ZONE ZONE ZONE VALVE VALVE VALVE HEATING HEATING HEATING ZONE ZONE ZONE 1 2 3* EXPANSION TANK COLD WATER INLET Control Wiring (Option 1): 7600B only 1. Set “DHWP OFF” (default, see prog
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* Additional zones can be added by duplicating the Figure 14 (continued) - 7600A/B alternate multi-zone connections plumbing and wiring of zone 3, adding additional with or without a tankless coil transformers as needed. ◄ CONTINUED FROM PREVIOUS PAGE Control Wiring (Option 2): 7600A only 1. Set “DHWP OFF” (default, see programming section for instructions) 2. Set “C1 on TT” (default, see programming section for instructions) 3. Circulator-on delay will affect all zones. Circulator-off dela
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Figure 15 - 7600A/B single-zone connections with Indirect Domestic Hot Water (DHW) Water Flow: AIR VENT AIR SEPARATOR P1 P2 INDIRECT DHW HEATING ZONE DHW 1 ZONE EXPANSION TANK COLD WATER INLET Control Wiring: 1. Set “DHWP on ZR” (see programming section for instructions) 2. Set “C1 on TT” (default, see programming section for instructions) 3. Circulator-on and -off delay will only affect zone 1. WHITE TW ZONE 1 RED TR LOW VOLTAGE THERMOSTAT L2 L1 C1 C2 ZC ZR B1 B2 CIRCULATOR 120 VAC P2 NEUTRAL
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Figure 16 - 7600A/B multi-zone connections * additional zones can be added by duplicating with Indirect Domestic Hot Water (DHW) the plumbing and wiring of zone 3. Water Flow: AIR VENT AIR SEPARATOR P2 P3 P4* P1 INDIRECT DHW HEATING HEATING HEATING ZONE DHW ZONE ZONE 1 2 3* ZONE EXPANSION TANK COLD WATER INLET CONTINUED ON NEXT PAGE ► 18 SK10035
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* Additional zones can be added by duplicating Figure 16 (continued)- 7600A/B multi-zone connections the plumbing and wiring of zone 3. with Indirect Domestic Hot Water (DHW) ◄ CONTINUED FROM PREVIOUS PAGE Control Wiring (Option 1): Circulator-On and -Off Delays on DHW Zone Only 1. Set “DHWP on TT” (see programming section for instructions) 2. Set “C1 on TT” (default, see programming section for instructions) 3. Circulator-on and -off delays will only affect DHW zone. CIRCULATOR 120 VAC P4* Z
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* Additional zones can be added by duplicating Figure 16 (continued) - 7600A/B multi-zone connections the plumbing and wiring of zone 3. with Indirect Domestic Hot Water (DHW) ◄ CONTINUED FROM PREVIOUS PAGE Control Wiring (Option 2): Circulator-On Delay on All Zones 1. Set “DHWP OFF” (default, see programming section for instructions) 2. Set “C1 on ZR” (see programming section for instructions) CIRCULATOR 3. Circulator-on delay will affect all zones. Circulator-off delay will 120 VAC have
