myenergi eddi Relay & Sensor Board | EDDI-RLYBD | 2x 16A Relays

Description

The myenergi eddi Relay & Sensor Board (EDDI-RLYBD) is an optional internal expansion board for the myenergi eddi solar diverter. It adds two independent multifunction relays, an isolated eSense input and two PT1000 temperature sensor inputs, opening up more wiring configurations than the eddi offers on its own.

It is the board that enables the eddi to work with heat pumps. It also supports economy tariff sensing, de-stratification pump control, timed operation, import and export thresholds and a fault signal for building management systems.

2 x 16 A

Multifunction relays

eSense

230 V AC sensing

2.5 kV

Isolated eSense input

2 x PT1000

Temperature inputs

6

Relay functions

Internal

Fits inside the eddi

Safety and regulations: fitting the board means opening the eddi enclosure. Power the eddi off and disconnect it from the mains first. Installation and wiring must be carried out by a competent person in accordance with BS 7671.

Compatibility: an optional accessory for the myenergi eddi 2.1 (EDDI-16A1P02H). It does not work on its own: it needs an eddi to fit into.

Good to know: the manufacturer provides fitting diagrams in the eddi manual (page 28) and wiring application examples in its help centre, covering economy tariffs, de-stratification pumps, underfloor heating and more.

How it fits

1. Power off

Isolate the eddi and disconnect it from the mains supply.

2. Open the eddi

Open the enclosure and locate the main circuit board.

3. Mount the board

Position the board over the connectors and secure it with the three plastic spacers.

4. Connect the ribbon

Plug the flexible ribbon cable into the black connector on the board and the black connector right of the display on the top eddi board.

Key features

Heat pump enablement

Gives the eddi the relay and sensing inputs it needs to work with heat pumps.

Two independent relays

Two 16 A multifunction relays that can be set to different functions independently, or to operate as a pair.

Economy tariff eSense input

An isolated 230 V AC detection input for low-tariff sensing and similar signals.

Two PT1000 inputs

Connect PT1000 temperature sensors for accurate temperature monitoring of cylinders and thermal stores.

Flexible relay functions

Export threshold, import threshold, operate when heating, de-stratification pump control, timed operation and fault signal for BMS systems.

Underfloor heating control

A thermostat wired to eSense can be set to Heater Enable 2, so the eddi only powers an underfloor heating mat when the thermostat calls for heat.

Technical specification

Product

Brand

myenergi

MPN

EDDI-RLYBD

Type

Optional internal relay and sensor board

For use with

myenergi eddi 2.1 (EDDI-16A1P02H)

Supplied with

Three plastic spacers and a flexible ribbon cable

Inputs and outputs

Multifunction relays

2 x 16 A, independent or paired

Economy tariff sense input (eSense)

230 V AC sensing (2.5 kV isolated)

Temperature sensor inputs

2 x PT1000

Relay functions

Available functions

Export threshold, import threshold, operate when heating, de-stratification pump control, timed operation, fault signal for BMS systems

Fitting

Installation

Internal; mounts on three spacers over the eddi circuit board

Connection to eddi

Flexible ribbon cable to the black connector right of the display

Frequently asked questions

What does the Relay and Sensor Board add to the eddi?

Two 16 A multifunction relays, an isolated eSense input and two PT1000 temperature sensor inputs, giving many more wiring options.

Do I need it to use the eddi with a heat pump?

Yes. The manufacturer lists the eddi as working with heat pumps when used with the optional Relay and Sensor Board.

What can the relays do?

Each relay can be set independently, or the pair can work together, for export threshold, import threshold, operate when heating, de-stratification pump control, timed operation or a fault signal for BMS systems.

What is the eSense input for?

It is an isolated 230 V AC detection input, ideal for sensing an economy tariff or a similar signal such as a thermostat call for heat.

Can I fit it myself?

The board fits inside the eddi, so the unit must be isolated and opened. We recommend a qualified electrician fits it. Follow the fitting diagrams in the eddi manual.

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Room Dimensions

Length (in m):

Width (in m):

Height (in m):

Room Type

Living Room

Bedroom

Kitchen

Bathroom

Conservatory

Hallway

Glazing Type

Single Glazed

Double Glazed

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External Walls

0 Wall

1 Wall

2 Walls

3 Walls

4 Walls

Insulation Level

Poor

Average

Good (New Build)

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