HoneywellHome THR842DEU DT2R Thermostat, White

HoneywellHome THR842DEU DT2R Thermostat, White

Q: Can this replace an old siemens raa20 analouge

I'm afraid that's an almost impossible question to answer properly since the features the Siemens unit and the Honeywell thermostat are very different, and don't overlap in many details. It is 'similar' in that it will 'request' heat when the temperature falls below the (adjustable) setting. [This feature simply relies on a small relay closure within the Honeywell thermostat, but the wiring for this appears to be slightly different from that of the Siemens.] It does not offer any facility to request cooling. Also, be aware that this Honeywell thermostat uses 2 x AA batteries to maintain its time/temperature settings: this may not be 'appropriate' in certain circumstances where a public building is involved. This Honeywell thermostat is really only intended for domestic purposes. I would honestly recommend you approach a qualified heating engineer if you really need to replace the Siemens unit for any reason.

Q: why does it need batteries if it is wired?

The thermostat works like a light switch where it makes and breaks a live wire.So unless you had a 3 core cable going from the boiler to the thermostat you would need batteries to power it. The Thermostat requires a neutral wire and a live wire to power the display like a plug does.

Q: Hi my honeywell cm921 needs replacing. is this compatible?

Hi there, in short no. The CM921 is programmable, which means you can us it to set times for your heating to go on and off. The 842 is just a thermostat. This will only control the temperature of your heating. hope this helps.

Q: can i use this with a three wire system

Yes there are 3 terminals to wire into

4.2/5

ID del producto: 159837858

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Detalles

Brand
Honeywell Home
Model name
THR842DEU
Product dimensions
2.9D x 9W x
Controller type
Push Button
Special feature
Einfache und
Colour
Wireless White

📊5°C to 35°C range

📏9x2.9x9.2 cm

🔋Battery powered

Comprados juntos con frecuencia

Honeywell Home THR842DEU DT2R Thermostat, White

HONEYWELL ST9400C Thermostat Programmer. 7, 2-Channel, 3 on/Off per Day, 24 V, White, 1

“New Model” GRUNDFOS UPS3 15-50/65 Pump - Replaces UPS2 15-50/60

Descripción

🌟 Elevate Your Comfort with Smart Control!

USER CENTRIC DESIGN - Extra-large display with easy-to-read characters.
SMART ENERGY SAVINGS - One-touch ECO button for instant energy efficiency.
SEAMLESS COMMUNICATION - Reliable two-way wireless communication.
CUSTOMIZABLE EXPERIENCE - Installer mode for tailored thermostat settings.
EFFORTLESS INSTALLATION - Simple mounting with included batteries.

The HoneywellHome THR842DEU DT2R Thermostat is a wireless, battery-powered device designed for effortless heating and cooling control. With a set point range of 5°C to 35°C, it features intelligent self-learning capabilities, an ECO button for energy savings, and a user-friendly interface with an extra-large display. Ideal for modern homes, it combines efficiency with a sleek design.

Presupuesto

Part number	THR842DEU
Item Weight	480 g
Product Dimensions	9 x 2.9 x 9.2 cm; 480 g
Item model number	THR842DEU
Colour	Wireless White
Style	Wireless \| Basic
Shape	Rectangular
Power source type	Battery Powered
Voltage	230 Volts
Item Package Quantity	1
Display style	digital
Plug profile	Wall Mount
Special Features	Einfache Montage und Bedienung (batteriebetrieben.
Included components	Inhalt: 1 Stück
Batteries included?	Yes
Batteries Required?	Yes

¿Tienes una pregunta? Mira lo que otros preguntaron

Can this replace an old siemens raa20 analouge

why does it need batteries if it is wired?

Hi my honeywell cm921 needs replacing. is this compatible?

can i use this with a three wire system

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Trustscore 4.5 | Más de 7,300 reseñas

Yusuf A.

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