Wunda Smart Connection Box: Installation Guide & Technical Specifications

Introduction

Welcome to your Smart Connection Box. This device is a key component for your smart home heating system.

Key Components:

Status Lights
Setup Pairing Button [⚙️]
Output Test Button
5A Fuse
Terminal Blocks
Wire Clamping Area
Actuator Cable Channel
DIN Mounting Rail Clamp
Wall Fixing Holes
Antenna

For more information and support, please visit: www.wundasmart.com/support

Quick Install Guide

First, ensure your choice of Hub is set up and your App is installed.
Mount the Connection Box near the manifold.
Connect actuators to the terminal blocks.
Connect power, pump, and heating source.
Launch your App, choose Devices, then Add device, and select Smart Connection Box.
Hold the Setup Button [⚙️] and wait until the device shows it has been successfully paired.
Configure your installation in the App.

Diagram Description: A front view of the Wunda Smart Connection Box, a white rectangular device with blue terminal blocks. Key components are labeled with numbers 1 through 10: Status Lights, Setup Pairing Button, Output Test Button, 5A Fuse, Terminal Blocks, Wire Clamping Area, Actuator Cable Channel, DIN Mounting Rail Clamp, Wall Fixing Holes, and Antenna.

Technical Specifications

Specification	Value
Dimension	326 x 133 x 32 mm
Weight	490 g
Power Supply	230V~ 50Hz
Mounting	DIN rail 35mm
Wiring	Fixed wiring only
Fuse	5A
Switch Rating	2(1)A 230V~
Pump circuit load	2(1)A 230V~
Thermoelectric actuator circuit load	12x 230V~ 50Hz/20W max
Ingress Protection	IP20
Operating Temperature	0°C to 45°C
Storage Temperature	-10°C to 55°C
Ambient Humidity	Operating 25% to 90%, Storage 15% to 95% (non-condensing)
Software Class	A
Rated Impulse Voltage	2.5kV
Radio SRD Frequency	869.85 MHz
Radio SRD Bandwidth	125 kHz
Radio SRD Maximum Power	<5 dBm

Precautions

Installation and connection should be carried out by technical service or authorized and qualified persons according to applicable regulations and standards.
Always disconnect the power supply when connecting or disconnecting the devices powered from the main device.
Before installation, read the terms and conditions of the warranty and these instructions. Improper installation or use contrary to these instructions will void the warranty.
All repairs to the device should be carried out by a competent electrician. Otherwise, it will void the warranty.
This device should not be installed or worked on by minors, people with reduced physical or mental abilities, or with lack of experience or knowledge of the equipment, except if supervision and instruction for the safe use of the equipment is provided in such a manner that all the associated hazards are understood.
If a power cord is damaged, it should be replaced by a qualified person in order to avoid a hazard.
Do not install the device with mechanically damaged casing or damaged/broken cables.
The device must not be exposed to water or excessive humidity resulting in steam condensation (e.g. caused by rapid changes of the ambient temperature).

Wiring Examples

Heating Source - Voltage Free (wiring example)

Diagram Description: This diagram shows a simplified wiring setup for a voltage-free heating source. It illustrates connections for mains input (L, N, 5A Fuse), AC output (LON, LON, COM, NO), and connections for Pump, Boiler, and Actuators. The terminal blocks are labeled with L, N, and specific output designations.

Heating Source - 230V~ Output (wiring example)

Diagram Description: This diagram shows a wiring setup for a 230V~ output heating source. Similar to the voltage-free example, it includes mains input (L, N, 5A Fuse) and AC output (LON, LON, COM, NO), but specifically shows connections for Pump, Boiler, and Actuators with 230V~ output terminals.

App Configuration

If you are wiring your two-port valve or direct feed to trigger the boiler to the connection box, ensure that you select the relay within the app when you are selecting your actuators.

App Screenshot Description: Two mobile app screens are shown, titled "Connection box configuration" for "Smart Connection Box 2.0". Each screen displays a grid of numbered buttons (1-12) and a "Relay" button. In both screenshots, button 8 is highlighted and labeled "Relay". Below this, a "Ll test" section shows similar numbered buttons, with button 8 also selected and labeled "Relay". The options "Cancel" and "Save" are visible at the bottom of each screen.

Installer's Notepad

Use this section to record installation details.

Output no	Connected to loop no	Room name
1
2
3
4
5
6
7
8
9
10
11
12

This Smart Connection Box is connected to:

[Text area for connection details]

Notes:

[Text area for additional notes]

Compliance and Manufacturer

EU Declaration of Conformity

This device is in compliance with essential requirements and other relevant provisions of the following EU Directives:

RED Directive 2014/53/EU
ROHS Directive 2011/65/EU

A copy of the EU Declaration of Conformity is available at: wundasmart.com/conformity

CE Mark: ??

WEEE Symbol Explanation

The WEEE symbol [♻️] means that a device must be disposed of separately from general household waste. When a device reaches the end of its lifespan, it must be taken to a designated waste collection point for safe disposal or recycling. This conserves natural resources, protects human health, and helps the environment.

Manufacturer

WundaGroup PLC

Caldicot, NP265AD

United Kingdom

Website: www.wundasmart.com

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Wunda Smart Connection Box