Controls Master

"Roads? Where we're going we don't need roads."
Back to the Future, 1985

Welcome! 

Thanks for coming, here you can fine tune your already extraordinary skills, making you a true master of all things Vaillant Controls!

Introduction to different Control types

Plug in Analogue timer (Combi boilers only)

Plug in Analogue timer

Plug in analogue timers are simple mechanical devices, which allow you to set the specific times you would like your heating system to come on and off over a 24 hour period.

The times that you input will then be repeated each day.


Digital timer (Combi and system boilers)

Digital Timer

Digital timers can be plug in or wall mounted and allow you to set the specific times you would like your heating and hot water system to come on and off. Can have 24 hour, 7 day or 5/2 day programmes


Room Thermostat

Room Thermostat

Room thermostats are devices that monitor indoor air temperature and allow you to set a temperature level you are comfortable with. When the room temperature drops below your set level, the thermostat will activate your boiler.

Once the room temperature is reached it will deactivate the boiler.


Basic Solution - Mechanical timer with room thermostat

Plug in Mechanical Timer with Room Thermostat

timeSWITCH 150 - Mechanical Timer

the timeSWITCH 150 plugs into the front of the boiler. using the tappets you can set times which will repeat each 24 hours. The dial on the left hand side lets you choose between heating off, heating constant & timed mode. 

VRT 50 Digital Room Thermostat

the VRT 50 is wired into the boiler and fitted onto a wall within the home. the VRT 50 is a straight forward room thermostat which uses eBUS to modulate the boiler.

  • Simple Installation
    • timeSWITCH 150 - is easily pushed into the boiler facia.
      • VRT 50 - is typically placed in a hallway to detect and maintain desired room temperature.
  • Easy to use traditonal solution
    • the dial on the timSWITCH 150 is very clear and easy to set up on / off times. 
  • Simple clear temperature display and settings
    • With one turn of the VRT 50 room thermostat, the display, will easily change and clearly show the desired temperature.

Traditional Solution - Digital programmer with room thermostat

Plug in Mechanical Timer with Room Thermostat

timeSWITCH 160 - Digital Programmer

the timeSWITCH 160 plugs into the front of the boiler. using the menu you can set heating and hot water times for individual or block days. The button on the right-hand side lets you choose between heating off, heating constant & auto mode. 

VRT 15 Analogue Room Thermostat

the VRT 15 is wired into the boiler and fitted onto a wall within the home. the VRT 50 is a straight forward room thermostat which uses 230vac to switch the boiler.

  • Simple Installation
    • timeSWITCH 160 - is easily pushed into the boiler facia.
      • VRT 15 - is typically placed in a hallway to detect and maintain desired room temperature.
  • Easy to use traditional solution
    • the dial on the timSWITCH 160 is very clear and easy to set up times. Setting hot water, heating or both is clear and simple
  • Simple to set temperature control
    • Set the room temperature by using the simple analogue dial on the front of the VRT 15

Which Control is the timeSWITCH 150?

Match the thermostat to the timeSWITCH!

  • timeSWITCH 150
    VRT 50
  • timeSWITCH 160
    VRT 15

Programmable Room Thermostats

Programmable Room thermostats are devices that allow you to program the on and off times of your heating and hot water and monitor indoor air temperature.

They also allow you to set a temperature level you are comfortable with. When the room temperature drops below your set level, the thermostat will activate your boiler and when the room temperature is reached it will deactivate the boiler.

They are normally wall mounted

Digital wired or wireless load compensation solution

Vaillant VRT350(f) programmable room thermostat

Our intelligent room compensating control, the wired VRT 350 or wireless VRT350f control allows you to turn your system on or off at different times of the day, and continuously checks and adapts to give you the room temperature you want.

Features and benefits

  • Simple Installation
    • Wired - Wall mounted control and wired back to the boiler via eBUS
    • Wireless - Plug in receiver with wall mounted control
  • Enhanced Load compensation
    Modulates the boiler to ensure efficient operation
  • Clear temperature display
    Blue backlit display
    Show desired temperature as well as the current temperature
  • Simple to set temperature control
    The room temperature by using the simple dial on the front

The VRT 350f Wireless programmable room thermostat

The VRT 350f Wireless programmable room thermostat

The VRT350f is Vaillant's wireless programmable room thermostat with load compensation, and can be used for the following applications. 

  • Combination boilers with 1 heating zone
  • System boilers with 1 heating zone and 1 hot water zone (Requires VR66)
  • Open Vent boilers with 1 heating zone and 1 hot water zone (Requires VR66)

The VRT 350 Wired programmable room thermostat

The VRT 350 Wired programmable room thermostat

The VRT350f is Vaillant's wireless programmable room thermostat with load compensation and can be used for the following applications. 

  • Combination boilers with 1 or 2 heating zone (+VR66 for 2 heating zone)
  • System boilers with 1 or 2 heating zone and 1 hot water zone (Requires VR66)
  • Open Vent boilers with 1 or 2 heating zone and 1 hot water zone (Requires VR66)

Name that room thermostat?

  • VRT 30
  • VRT 15
  • VRT 50
  • VRC 470f
  • VRT 350

Which of these Vaillant Controls are compatible with 2 heating zones

  • VRT 350f (wireless)
  • timeSWITCH 150
  • VRT 50
  • timeSWITCH 160
  • VRT 15
  • VRT 350 (wired)

Which wiring centre is required for system and open vent boilers with standard vaillant controls

  • VR66
  • VR70
  • VR71

Internet connected controls

Internet connected controls come in all shapes and sizes.

They typically offer the same functionality as a programmable room thermostat. However, they come complete with the ability to connect to the internet.

This allows you to have complete control of the device from a remote location via a smart phone application.

vSMART - Smart just got a whole lot smarter


vSMART - Smart just got a whole lot smarter

The Vaillant vSMART lets you control your heating and hot water anytime, anywhere from a single, easy to use app for iOS and Android smartphones.

Compatible with the entire range of Vaillant ecoTEC boilers, vSMART supports modulating heating & enhanced

Table top mount

Wall mount

Simple Installation

vSMART installation couldn't be easier. Simply connect the gateway into the boiler using our low voltage eBUS connection, then plug in the  supplied 230V~ power supply, and that's it!

With system and open vent boilers, the simple VR66 wiring centre is required  and comes included in the pack

Electronic paper display

The black and white display uses proven electronic paper technology offering outstanding contrast, resulting in crystal clear  information. vSMART does not require power to maintain text on the display, meaning batteries don't last weeks or months,  they last years


Self Learning

From the moment vSMART is installed it begins to learn the thermal behaviour of your home,  so when you want 21℃, you get 21℃, and not a minute later.


vSMART Screen

  • LCD
  • LED
  • Blue backlit display
  • Electronic paper
What type of screen does the vSMART thermostat have?

vSMART Features?

  • Multiple mounting possibilities for the thermostat
  • Auto learns your habits
  • Learns your homes thermal behaviour
  • iOS And Android App
  • Electronic paper
  • Works with only combination boilers
  • Multizone
  • Simple installation
  • Internet weather compensation
  • Simple setup wizard

Introduction to Enhanced Load Compensation and Weather Compensation

Programmable Room Thermostat with Load compensation

Programmable room thermostat with Load Compensation

As Vaillant's Programmable Room thermostat speak eBUS (the data language of all our appliances). All Vaillant's programmable Room thermostats come as standard with Enhanced load compensation feature which automatically adjusts the flow temperature going from the boiler to the radiators (or under floor heating).

Why enhanced load compensation?

  • Improved energy savings 
  • Adapts boiler output based on internal temperature
  • by modulating the appliance this prevents unnecessary stops and starts of the appliance, reducing boiler wear and tear

Load Compensation - When the house is warm

When the house is warm

For example, the room temp is 20°C and the desired room temperature is 22°C. 

Only a small room temperature increase is required to reach the desired temperature. 

So, the controls will reduce the flow temperature from the boiler to the radiators and underfloor ensuring less energy is used. 


Load Compensation - When the house is cold

When the house is cold

If the room temperature is 15°C and the desired room temperature is 22°C.

A higher room temperature increase is required to achieve the desired room temperature. 

So, the controls will increase the flow temperature from the boiler to the radiators so the room temperature is quickly and efficiently heated.

Load compensation scenario

  • Very Hot
  • Hot
  • Warm

If the room temperature is 20°C and the desired temperature is 22°C, What will the flow to the radiators be

What type of control is a VRT 350?

  • On/Off programmable room thermostat
  • Weather Compensating programmable room thermostat
  • Enhanced Load Compensating programmable room thermostat

Programmable Room Thermostat with Weather compensation

Programmable room thermostat with Weather Compensation

On top of Enhanced load compensation, Vaillant has a range of Weather compensating controls that offer all the advantages of Enhanced load compensation, but also have the ability to adapt the boilers power output based on the temperature outside the property

Why enhanced load compensation?

  • Ability to adapt to outside temperature
  • All the features of Enhanced load compensation
    • Improved energy savings 
    • Adapts boiler output based on internal temperature
    • by modulating the appliance this prevents unnecessary stops and starts of the appliance, reducing boiler wear and tear

Different types of weather data

Outdoor Sensor weather compensation

A temperature sensor is located on the outside of the building, on a north facing wall. This can be by a wired or wireless connection to the internal controls of the boiler and information about the outside temperature is sent to the boiler controller constantly.


Internet based weather compensation

The control will be connected to the internet and based on the controls location, data on outdoor temperature will be obtained from local weather station(s) and constantly sent to the boiler.


Weather Compensation - how it works

Weather Compensation

Weather compensation significantly improves efficiency under partial load conditions and is especially relevant for the UK climate

Weather compensation mirrors the functionality of Enhanced load compensation, however in addition when the temperature changes outside, the boiler responds and will increase or decrease the flow temperature to the radiators in order to compensate.