Baxi uSense Page 3 Installation Manual Download

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The Baxi uSense Wired Smart Thermostat is compatible with all combi boilers
using the 230V switched live and also has OpenTherm capability.

Warning: High Voltage wiring must only be installed
and worked on by a suitably qualified person.

1. Compatibility

Summary of Contents for uSense

Page 1: ...1 Give your customers complete control Baxi uSense Wired Smart Thermostat Installation guide ...

Page 2: ...tallation 5 OpenTherm hot water control combi only 6 Outdoor sensor 7 Technical specifications 8 Gateway LED key You can find more detailed instructions at www baxi co uk Warning High Voltage wiring must only be installed and worked on by a suitably qualified person ...

Page 3: ...mart Thermostat is compatible with all combi boilers using the 230V switched live and also has OpenTherm capability Warning High Voltage wiring must only be installed and worked on by a suitably qualified person 1 Compatibility ...

Page 4: ... package 1 User guide 2 Room unit 3 Screw and plug fixings 4 Mounting bracket Gateway package 1 The gateway 2 Installation guide 3 Screw and plug fixings 4 230V power adaptor 5 Adhesive pad for power adaptor 1 1 2 3 4 5 2 3 4 ...

Page 7: ...l connectors on the boiler or junction box Connect the plugged end of the power adaptor into the 24V terminal on the gateway 1 All cables must be supported 2 The power adaptor and wiring must not be inside the boiler 3 The power adaptor must be supported adhesive pad is supplied for this 24V OT ON OFF R BUS ...

Page 10: ...e existing thermostat if applicable 3 Fix the room unit backplate to the wall using the screws provided 4 Either use existing thermostat wires or run new wires from the gateway there is no polarity either wire can be connected to either position 5 Trim the wires coming out of the wall connect them into the connector block on the room unit backplate continued opposite ...

Page 12: ...should be carried out using a suitable meter and include checks for earth continuity resistance to earth short circuit and polarity 2 Turn on the power to the gateway and check that the gateway and room unit power up See page 19 for LED key 3 Download the Baxi uSense Smart Thermostat App and create a uSense account 4 Use the user guide supplied to set up uSense ...

Page 13: ...default the hot water temperature to 60 C when connected by OpenTherm 2 The room unit will automatically default the heating flow temperature to 80 C when connected by OpenTherm 3 These settings can be adjusted to your required comfort level using the uSense room unit only the boiler controls and App can t adjust these settings when the room unit is connected with OpenTherm ...

Page 15: ...m Power supply R Bus connection voltage 24V 5 Maximum power consumption 1 5W Electrical connection Maximum cable length for dedicated room unit R Bus 50m Ambient conditions Storage temperature 25 70 C Relative humidity 5 95 C Condensation is not allowed Operating conditions 0 60 C uSense room unit ...

Page 16: ...mperature measurement range 5 60 C Maximum temperature deviation at 20 c 0 3 C Maximum room control overshoot after pre heating 1 C Temperature variation 0 25 C Outside temperature Refer to boiler documentation Temperature control area 10 30 C ...

Page 18: ...18 Temperature Input 24V 4W R BUS 24V 100mA ON OFF Max 70W 30 VDC 230 VAC OpenTherm 4 0 compliant Temperature 0 C 60 C Insulation class IP21 Gateway ...

Page 19: ...modes and faults Starting up Gateway in operation No boiler detected check connections and wiring No room unit detected check connections and wiring Internal error turn all power off reinstate and perform setting procedure again For technical support call 0344 871 1545 ...