Beckett 7600 manual In-1 Installation Instructions

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.

3.Tighten with 1-1/8” open end or box wrench. Pipe wrenches, pliers, and adjustable wrenches will damage/round-off the hex.

4.Securely install the AquaSmart control to the sensor. Plug the 2-in-1 Sensor RJ connector (phone jack style) into the receptacle (Item a, Figure 6) on the control.

5.Route the 36” green wire through the AquaSmart bottom rectangular slot (Item c, Figure 6). Securely install the fork connector of the 36” ground wire and the ground wire from the 2-in-1 sensor under the ground screw at the bottom of the control (Item b, Figure 6).

6.Thoroughly clean the pipe surface and securely tighten the pipe clamp on the water inlet pipe to the boiler as close to the boiler as possible.

7.Route the 36” green ground wire to the pipe clamp then cut to proper length, if necessary.

8.Strip the wire and insert the stripped end into hole on the pipe clamp (item d, Figure 7). Tighten retaining screw against the wire making sure that you have good contact.

9.Complete control wiring and fill the appliance with water to the pressure required, according to appliance manufacturer’s instructions. Make sure all air is purged from the system and there are no leaks. Turn on power to the appliance and observe one call for heat cycle with shut off at set temperature.

Test the Low Water Cut-off (LWCO) Safety Function

WARNING! Avoid touching or shorting the live terminals during this test.

Turn electric power ON to energize AquaSmart control. Perform the following tests to verify the LWCO function.

•For AquaSmart 7600A: Remove the green sensor lead from the ground screw. The sensor should cause the AquaSmart display to indicate, “LOCKOUT – LOW WATER”. If it does not, replace the sensor.

•For AquaSmart 7600B: Remove the green sensor lead from the ground screw and remove both the B1 and B2 (24 Vac) leads from their terminals. The sensor should cause the AquaSmart display to indicate, “LOCKOUT – LOW WATER”. If it does not, replace the sensor.

•Attach wires and tighten terminal screws securely when testing is complete.

Figure 6 - Sensor lead & ground screw connections

a

c

b

Figure 7 - Ground Clamp and Grounding Wire

d

Figure 8 - Sensor Water Detection Method

AquaSmart

Boiler Control

	2-IN-1 SENSOR
Ground Screw	Water Not Present
		Water Present
Ground Wire
Pipe Clamp	Incomplete	Complete
	Circuit	Circuit
Water Inlet

The AquaSmart 2-in-1 Sensor uses the “conduction” method to detect whether water is present in the boiler. This is done by using the water in the boiler itself to “conduct” a signal and complete an electrical circuit. It is necessary that the ground wire from the sensor be bonded to the boiler wall (not the jacket - unless the jacket is bonded to the boiler wall). When water is not present, there is no “conduction” and the circuit is incomplete.

For the AquaSmart we recommend that a grounding pipe clamp be mounted to the water inlet pipe, and that a ground wire be bonded from the pipe clamp to the green terminal inside the AquaSmart control. The 2-in-1 sensor green “ground wire” shall also be bonded to the green terminal in the AquaSmart control.

AquaSmart Boiler Control Manual

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