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Thermostat Controller - v 8.0.0

This driver allows you to combine a number of different thermostats in a project and present them as a single user interface to your customer.  There are a number of different situations in which you may find this driver beneficial.

Different Heating and HVAC systems
You may have more than one system installed in the same room.  A typical example is an HVAC system that can both heat and cool, and a separate supplementary radiant heating system.  In this situation not only is the customer confused by seeing controls for the two systems it is also possible that the systems may fight one another.

Combining Different Areas
There are also situations where you may have individual heating controls in different rooms but you want to present the customer with another global interface where the temperature can be set across all of these rooms - a master thermostat.  This can be particularly useful in light commercial applications where you may want to be able to give staff individual control in the areas during working hours but be able to set the whole building to a consistent temperature outside of working hours.

Works with ANY thermostat
This driver can be used to combine thermostats in any combination you require and by using ANY device that appears as a thermostat in Control4.  This includes the Control4 Wireless thermostat, the other heating systems that Extra Vegetables have drivers for including Coolmaster, Heatmiser and Z-Wave and with thermostat drivers from other third parties.

Non Scheduling Version
The package now includes a version with no programable scheduling.  This can be used only if none of the thermostats that the driver is used to control have scheduling capabilities both physically and via their drivers.

 


Supported Control4 operating systems

Compatible with Control4 OS 2.2 and above ONLY


Control4 Processor Requirements

HC800                     
HC1000
HC250 can be used on smaller systems.  Please check Control4's recommended processor requirements for your specific project.


Further information

You may have more than one system installed in the same room.  A typical example is an HVAC system that can both heat and cool, and a separate supplementary radiant heating system.  These two separate systems present three potential problems.

Firstly it is possible for the customer to set different set points on both systems.  So you can have a situation where the HVAC system is trying to cool down to a level whilst the heating system is trying to heat the area to a higher level.

Secondly in normal operation the systems may not operate correctly together.  Imagine the room is currently at 20°C/68°F and currently neither system is on.  If the customer now selects a desired temperature of 24°C/75°F then both systems will turn on – the HVAC system in heat mode.  The HVAC system will almost certainly bring the room up to the desired temperature quite quickly.  At which point both system will stop heating.  The likely problem is that the radiant or under-floor heating system may not have got up to temperature.  This will cause the situation where the HVAC system is doing all the work and the customer may complain that the radiant under-floor heating system is not working properly.

Thirdly if you have different systems they will be measuring the temperature in the room in different places.  This will almost certainly mean that the two thermostats are reporting slightly different values.  In turn this can make the above two problems worse especially if you are running in auto mode and the cooling and heating set points are too close together.

Combining Different Areas
There are also situations where you may have individual heating controls in different rooms but you want to present the customer with another global interface where the temperature can be set across all of these rooms - a master thermostat.  This can be particularly useful in light commercial applications where you may want to be able to give staff individual control in the areas during working hours but be able to set the whole building to a consistent temperature outside of working hours.

This driver can be used to combine thermostats in any combination you require.


Disclaimer

This driver is an independent commercial release by Extra Vegetables Ltd.  It is not authorized or supported by Control4.  Extra Vegetables fully support the driver through its authorized dealer network.

Click to enlarge

Controlling multiple HVAC systems in the same room, e.g. Heatmiser & Coolmaster


Controlling HVAC systems throughout a building - mini BMS

 

Features

  • Works with any Thermostat
  • Allows you to control more than one heating system in the same room
  • Prevents heating and cooling systems 'fighting'
  • Enables you to create a Master Thermostat for a building or floor