How do you replace battery

Just pop off the round plastic cap on the top of the HR92, there’s a small slot that helps get u going with a finger nail or screwdriver. Once off (only push fit) that reveals the battery compartment. Gently push in the metal tang that latches in a plastic tab then hinge the metal contact back and there you have it, batteries just tip out 👍

Can this be used to adjust the radiator heating on its own, without a central hub?

You can manually adjust temperature with dial on top of unit.

What else do i need to programme the trv with an app without boiler control as i have air source heating

Hello, Thank you for your interest in our products. The HR92UK TRVs work in conjunction with the evohome controller. The RFG100 remote access gateway can not be linked to the HR92 radiator controller. The RFG100 remote access gateway allows you to control your evohome system through the internet using the Total Connect Comfort App. The HR92 TRV's can only be controlled through the evohome controller or manually, therefore you will need to bind the HR92 to the evohome controller. The HR92UK TRVs are dependent on the evohome controller. Without the evohome controller the device cannot be connected. The latest version of evohome - the evohome WiFi does not need a RFG100 gateway to connect to the internet. It can be directly registered on http://international.mytotalconnectcomfort.com/ Our Honeywell Home products are compatible with most modern Air/Ground Source Heat Pump applications. Some Honeywell Home products use TPI (Time Proportional & Integral) control this is an industry standard term for an On/Off control using an advanced energy saving control method that can be used by most heating systems in the UK. Also, in order to control the heat pump with evohome you may need a BDR91T relay box that is specially designed for controlling air source pumps. If you need further assistance from our side, please contact our consumer support team by submitting a request on our GetConnected HoneywellHome Website. Thank you.

are there adapters to fit 28mm valves?

Hello, Thank you for your interest in our products. Honeywell Home does provide some adapters which must be ordered separately to fit some of the alternatives: ACH28, M28 1.5mm, AOV30 M30 1.0mm, EVA1 Danfoss RAV and RVL TRV’s. If none of these options are suitable, you will need to change your valve bodies with ones that are compatible. Honeywell Home can provide the V120-15A (15mm angled valve body) or the V120-15S (15mm straight valve body). If you need further assistance from our side, please contact our consumer support team by submitting a request on our Livewell Honeywell Home Website. Thank you, Your Consumer Support Team.

Manufacturer	Honeywell Home
Part Number	HR92UK
Product Dimensions	16 x 12.5 x 8.4 cm; 260 g
Batteries	2 AA batteries required. (included)
Item model number	HR92UK
Colour	White
Style	Single
Material	Polycarbonate
Power Source	Battery Powered
Item Package Quantity	1
Number of Pieces	1
Measurement System	Metric
Plug profile	Wall Mount
Special Features	Programmable
Included Components	1 x 1 Controller;1 Accessory Set;2 Batteries
Batteries included?	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline
Item Weight	260 g

Honeywell Home HR92UK Evohome Wireless Radiator Zoning Kit, White

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