Comparison Vaillant sensoCOMFORT VRC 720 f vs Vaillant sensoCOMFORT VRC 720

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	Vaillant sensoCOMFORT VRC 720 f	Vaillant sensoCOMFORT VRC 720
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Main	Suitable for Vaillant boilers with eBUS communication bus. Possibility to control the DHW circuit, ventilation unit, recirculation. Displaying the share of alternative energy, heat pumps, solar systems. Control via the Internet is possible with the VR921 module, purchased separately. Possibility of integration into the smart home system via the KNX module. Cascade control for up to 7 units and up to 9 heating circuits, with additional modules VR 71 and VR 70.	Suitable for Vaillant boilers with eBUS communication bus. Possibility to control the DHW circuit, ventilation unit, recirculation. Control via the Internet is possible with the VR921 module, purchased separately.
Suitable for	gas boiler electric boiler heat pump outdoor system	gas boiler electric boiler heat pump outdoor system
Specs
Type	electronic	electronic
Connection	wireless	wired
Control bus	eBus	eBus
Mounting	on wall	on wall
Air temp sensor
Outdoor temp sensor	optional	optional
Timer type	weekly	weekly
Programmable cycles per day	12	12
More features
Features	display holiday mode frost protection child lock	display holiday mode frost protection child lock
Power source	mains	mains
Thermostat dimensions	109x175x26 mm	109x175x26 mm
Receiver dimensions	110x76x41 mm
Added to E-Catalog	july 2021	july 2021

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Connection

How to connect the controller to the controlled device.

— Wired. Connecting with wires is the most common option. It is due to its main advantages — simplicity, reliability and low cost. On the other hand, the wiring itself can be quite troublesome and time-consuming.

— Wireless. Wireless connection — usually by radio channel. To do this, the kit usually provides an external transceiver connected to the controlled device. The main advantage of wireless models is obvious — they are much easier to install because no need to run extra wires. On the other hand, such a technique is much more expensive than wired, and communication has a limited range, which is further reduced if there are obstacles (such as thick walls) in the signal path.

— DIN rail. The phrase "on a DIN rail" traditionally refers to the method of installing the device (see "Mounting"); the connection is usually carried out by wire. However, this option is taken out separately for the reason that DIN devices are standardly mounted in a distribution cabinet — unlike conventional wired thermostats, installed directly in the room. However, sometimes it is an advantage: the distribution cabinet can be locked with a key, restricting unauthorized access to the thermostat. Models with such a connection usually refer to professional equipment used in industrial...facilities, warehouses, etc.