Myson Unisenza Plus Receiver User manual

Installation
and user manual
Unisenza Plus - Receiver
EN
H
eating,
cooling
& hot water
Smart, app
connectivity
OpenTherm
5 year
guarantee

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EN
Unisenza Plus - Receiver
Installation and user manual
Release Date
First release August 2023

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EN
Unisenza Plus - Receiver
Installation and user manual
Index
1 Safety warnings .....................................................................................................................4
Pictograms used in this manual..............................................................................................4
Purpose of the manual...............................................................................................................4
Intended use...................................................................................................................................4
Safety regulations........................................................................................................................5
2 Technical data .........................................................................................................................6
Unisenza Plus Receiver .............................................................................................................6
3 Dimensions..............................................................................................................................7
4 Pack contents..........................................................................................................................7
5 Overview ..................................................................................................................................8
Unisenza Plus Receiver .............................................................................................................8
LED functions.................................................................................................................................8
Terminals Description.................................................................................................................9
6applications........................................................................................................................... 10
Heating only (On/Off or OpenTherm boiler) or Heat/Cool (2-pipe system).........10
Central Heating plus Domestic Hot Water (S-plan or Y-plan)...................................10
Heat/Cool Independent system (4-pipe system)...........................................................10
Dual Zone Controls....................................................................................................................10
7 Download the APP................................................................................................................11
8 Nameplate ..............................................................................................................................11
9 Installation ............................................................................................................................ 12
Recommendations for a correct installation ................................................................... 12
Wall installation.......................................................................................................................... 13
System Type Selection with DIP switch and wiring diagrams................................. 15
10 Use ......................................................................................................................................... 19
Pairing to Unisenza Plus Gateway ......................................................................................19
Pairing with other Unisenza Plus device (optional) .....................................................20
Switch placement ..................................................................................................................... 22
11 Maintenance......................................................................................................................... 23
Power Cycle Reset.................................................................................................................... 23
Factory reset............................................................................................................................... 23
Cleaning ........................................................................................................................................ 24
12 Manual download and updates........................................................................................ 25
13 Disposal at the end of life .................................................................................................. 25

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EN
Unisenza Plus - Receiver
Installation and user manual
1 SAFETY WARNINGS
Pictograms used in this manual
To make reading clearer and more enjoyable, three types of symbols have been used
in this manual to convey to the reader the meaning or importance of the information
provided:
Hazard signs. Triangular framed shape. Indicate prescriptions relating to
present or possible dangers.
Prohibition signs. Circular, barred frame. Indicate prescriptions relating to
actions that must be avoided.
Mandatory signs. Full circle. Indicate information that is important to read
and comply with.
Purpose of the manual
The purpose of this manual is to guide the qualified installer the installation, maintenance
and proper and safe use of the equipment.
For this reason, it is mandatory for all personnel involved in the installation,
maintenance and use of the equipment to read this manual.
Contact the Manufacturer if any points are unclear or difficult to understand.
This manual contains information regarding:
• Technical specifications of the equipment;
• Installation and connection instructions.
Intended use
The Receiver can be used for the wireless control of boiler, pump or zone valves in a HVAC
system. It provides two channels relay on/offoutput and an OpenTherm interface,and can
be paired with Unisenza PLUS Thermostat and Unisenza PLUS Electronic Thermostatic
Head in the product platform to support multiple applications.
Its features are:
• Two channels on/off control with volt-free relay output @230V 5A resistive, 3A
inductive.
• Local switches for the manual override of the wireless controls on each channel.
• Build-in OpenTherm Controller function with an OT/+ interface auto detection.
• Support pairing with Unisenza PLUS Thermostat and Unisenza PLUS Electronic

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Unisenza Plus - Receiver
Installation and user manual
Thermostatic Head for room temperature control or boiler interlock.
• Over the air firmware update capability.
• Powered by 230V AC supply.
Safety regulations
Before proceeding with any installation or use, it is necessary to thoroughly inspect the
product. Make sure that all the information contained in this manual correspond exactly
to the purchased equipment. In the event that differences are identified, it is necessary
to contact the Manufacturer in order to obtain the assistance and specific technical
information necessary to operate.
Read this manual carefully before the installation, use and maintenance of the
product and keep it for any further future consultation by the various operators.
All installation, assembly, electrical connections to the mains and ordinary/
extraordinary maintenance must be performed only by qualified personnel or
technicians complying with the legal requirements.
Installation, use or maintenance other than those specified in the manual
may cause damage, injury or death, invalidate the warranty and relieve the
Manufacturer of all liability.
Disconnect the equipment from the mains before installing or maintaining it.
Do not install the equipment outdoors. The product has been designed to be
installed indoors, protected from bad weather, in places where the temperature is
between 0 and +50 °C.
At the end of the installation it is necessary to instruct the user in the correct use
of the equipment.

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EN
Unisenza Plus - Receiver
Installation and user manual
2 TECHNICAL DATA
Unisenza Plus Receiver
Output interface Relay On/Off or OpenTherm (OT/+) protocol specification v4.1
Switch rating
(Volt-free output)
Main: 230V/50Hz, 5A resistive, 3A inductive
Aux: 230V/50Hz, 5A resistive, 3A inductive
Firmware update Over the air firmware update capability
Wireless Communication ZigBee 3.0, 2.4GHz
Power Supply 230Vac 50Hz
Operating Environment Indoor, residential & commercial
Operating Temperature 0°C – 50°C
Storage Temperature -10°C – 60°C
Operating/Storage Humidity <90% RH, non-condensing
Dimensions 144.6(W) x 99.8(D) x 34.5(H) mm
Ingress Protection Rating IP30
Regulation CE, UKCA
Environmental Requirement RoHS compliance
The Unisenza Plus Receiver complies with the following European directives:
• RED directive 2014/53/EU
• ROHS directive 2011/65/EU
• REACH (EC 1907/2006)
The Unisenza Plus Receiver complies with the relevant UK Statutory Instruments:
• Electrical Equipment (Safety) Regulations 2016
• Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment
Regulations 2012 (SI 2012/3032)
• REACH ETC. (Amendment etc.) Regulations 2020 - SVHC

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Unisenza Plus - Receiver
Installation and user manual
3 DIMENSIONS
- MAIN -
ONAUTO OFF
- AUX -
35
145
100
4 PACK CONTENTS
x2x2
bc
- MAIN -
ONAUTO OFF
- AUX -
a
a. Unisenza Plus Receiver
b. Fixing screw
c. Fisher for plate fixing

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Unisenza Plus - Receiver
Installation and user manual
5 OVERVIEW
Unisenza Plus Receiver
- MAIN -
ONAUTO OFF
- AUX -
- MAIN -
ONAUTO OFF
- AUX -
PAIR RESET
1
4
5 6
2
3
1. Slide switch for Main output
2. LED for Slide switch for Main output
3. LED for Slide switch for Aux output
4. Slide switch for Aux output
5. Pair button
6. Reset button
LED functions
LED Status at Main / Aux Description On/Off System DescriptionOpenTherm(OT/+)System
Solid Red Relay Off OpenTherm Boiler Off
Solid Green Relay On OpenTherm (OT/+) On
Solid Orange Factory reset Factory reset
Flash Red 1 time then repeat Pairing mode Pairing mode
Flash Red 3 times then repeat Joining to the gateway Joining to the gateway
Main LED Flash Red or Green 3
times then repeat during normal
operations
Lost link with gateway Lost link with gateway
Flash Red 4 times then repeat
(when slide switch position is at
Auto)
Lost link with all paired ther-
mostats or E-TRV
Lost link with all paired thermo-
stats or E-TRV

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Unisenza Plus - Receiver
Installation and user manual
Terminals Description
L L N N NC NO
COM
NCNO
COM
A
B
230V
Main
50-60Hz
Terminal Function
230V 50-60Hz
(AC Input)
L Incoming Mains - Live
Earth
N Incoming Mains - Neutral
Main
(Volt free Output)
NO Main relay, Normally Open Contact
COM Main relay, Common Contact
NC Main relay, Normally Close Contact
AUX
(Volt free Output)
NC Auxiliary relay, Normally Close Contact
NO Auxiliary relay, Normally Open Contact
COM Auxiliary relay, Common Contact
OpenTherm Interface A-B Wire to OpenTherm Boiler

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Unisenza Plus - Receiver
Installation and user manual
6 APPLICATIONS
Heating only (On/Off or OpenTherm boiler) or Heat/Cool (2-pipe system)
• The receiver provides single output control when paired with Unisenza Plus Thermostat or
Unisenza PLUS Electronic Thermostatic Head.
• If there is no OpenTherm (OT/+) connection, the control output will go through the On/Off relay.
The Aux Relay will be in-sync with the Main relay for the interlock of additional equipment such
as the circulation pump
• If the unit detects an OpenTherm (OT/+) connection, the control will be taken over by the inte-
grated OpenTherm controller automatically. It can be paired with the Unisenza Plus Thermostat
and work together as an OT master unit.
Central Heating plus Domestic Hot Water (S-plan or Y-plan)
• The receiver provides two output controls. Main Relay controls Central Heating, and Aux Relay
controls Domestic Hot Water.
• It is paired with a thermostat supporting both heating and DHW function, such as the Unisenza
Plus Thermostat .
Heat/Cool Independent system (4-pipe system)
• The receiver provides two output controls. Main Relay controls Heating, and Aux Relay controls
Cooling.
• It is paired with a thermostat with heat/cool manual changeover functions, such as the Unisenza
Plus Thermostat.
Dual Zone Controls
• The receiver provides two on/off output controls. Main Relay controls Zone 1 and Aux Relay con-
trols Zone 2.
• It is paired with two zone thermostats with each controlling the heating or cooling in the zone
individually.
• Pairing with multiple Unisenza Plus Thermostats or Unisenza PLUS Electronic Thermostatic
Heads for boiler interlock is supported for Zone 1 only.
• A maximum of 16 devices including Unisenza Plus Thermostat and Unisenza PLUS Elec-
tronic Thermostatic Head can be paired with the Unisenza Plus Receiver.