Controller for various types of HVAC systems. This block is optimized to work with at least one Intelligent Room Controller and its intelligent mode switching to control the heating/cooling system.
Rooms with presence are prioritized for the heating/cooling decision. If presence is detected in rooms that call for heat and in rooms that call for cooling, the decision is based on the higher demand.
Intelligent Room Controllers provide dedicated outputs for up to three assigned controllers.
This function block belongs to the family of thermal energy sources. It is also suitable for use with hydronic heating systems.
This block is incredibly sophisticated and far superior to energy source controllers available on the market, e.g. luxurious thermostats.
Table of Contents
|Mode||Mode||0 = off
1 = automatic mode, switches automatically between heating and cooling, based on demand
2 = heating only
3 = cooling only
|ϑo||Outdoor temperature||If this input is not connected, the value of the system variable "Outdoor temperature" is used.||°||∞|
|B||Boost||Activate second stage heating/cooling if the first stage is already active.||-||0/1|
|Off||Off||Pulse: Outputs are reset / switched off.
On: Block is locked.
|Eh||Emergency Heat||Activates output (E) when heating demand = 1. Used for emergency heat, e.g. if heat pump defective.||-||0/1|
|Fan||Fan||Activates output (G) and opens all Intelligent Room Controllers to 100%.
If this input is used, the fan can no longer be activated in the App.
|H||Humidity||Required when output (Hmd) is connected in order to optimize indoor humidity. Note: Use the humidity reading of the most relevant room or an average value.||-||∞|
|W/W1||1st stage heating||1st stage heating, active if heating is required and possible||0/1|
|W2||2nd stage heating||2nd stage heating, active if 1st stage heating active > (Tt2s), or if parameter (∆ϑ) exceeded||0/1|
|Y||Compressor||Compressor. Operation varies depending on type.
For "Heat Pump" active when heating and cooling.
For "Heat Pump with Oil/Gas Auxiliary" active for first stage heating, inactive for second stage heating.
For "Oil/Gas with Cooling Additive" active when cooling.
|Y2||2nd stage cooling||Additional cooling, active in the same manner as second stage heating||0/1|
|E||Emergency Heat||Activated depending on input (Eh) or via app activation.||0/1|
|O/B||Reversing valve||Changes the operating direction of the heat pump. If (DirV) is deactivated: OFF for heating, ON for cooling. If (DirV) is activated: ON for heating, OFF for cooling.||0/1|
|G||Fan||Fan that moves heated or cooled air into the rooms||0/1|
|Hmd||Humidifier||Activated in heating mode if (H) < (Hs)||0/1|
|AC||API Connector||Intelligent API based connector.||-|
|Abbreviation||Summary||Description||Unit||Value Range||Default Value|
|minO||Minimum OFF time||Heating and cooling must be off for longer than (minO) before reactivating.
Note: This prevents frequent switching on and off of the heating/cooling system and thus extends the system life.
|Sot||Switch-on threshold||Switch-on threshold for heating/cooling. The arithmetic mean of the demand (degree of opening * room size) of all Intelligent Room Controllers must be greater than (Sot) to activate heating/cooling. If a room with motion is calling for heating/cooling, all Intelligent Room Controllers that are in Eco mode will be opened after 15 minutes.
WARNING: Defines the minimum threshold to prevent overheating or freezing of the system
|Fot||Fan overrun time||Fan overrun time after heating or cooling. Transports residual energy from the system to the rooms.||s||0...∞||90|
|Tt2s||Time to second stage||If heating/cooling is active for longer than the set time, the second stage heating/cooling is activated.||s||0...∞||300|
|∆ϑ||Delta temperature second stage||If the difference between the setpoint and actual temperature of an Intelligent Room Controller exceeds the set value, the second heating/cooling stage is activated. It is deactivated again when the difference reaches 0°.||°||0...∞||2|
|mioϑc||Minimum outdoor temperature cooling||If the outdoor temperature falls below this value only heating is allowed.||°||∞||15|
|maoϑh||Maximum outdoor temperature heating||If the outdoor temperature exceeds this value only cooling is allowed.||°||∞||18|
|ϑpmic||Protection temperature minimum cooling||Minimum outdoor temperature for activating the heat pump in Cooling mode to protect it from damage.||°||∞||12|
|ϑpmih||Protection temperature minimum heating||Minimum outdoor temperature for activating the heat pump in heating mode to protect it from damage.
Applies only to heating type 'Heat pump with fossil fuel backup'. This parameter is only visible in certain configurations.
|ϑpmah||Protection temperature maximum heating||Maximum outdoor temperature for activating the heat pump in heating mode.
Does not apply to heating type 'Oil/Gas'. This parameter is only visible in certain configurations.
|Hs||Humidity setpoint||If the humidity falls below the setpoint in heating mode, the humidifier is activated until the humidity exceeds the setpoint by 2.||%||0...100||45|
|DirV||Direction valve||Changes the operating mode of the reversing valve.||-||0/1||0|
|Heating Type||Type of heating. The type determines how the outputs are controlled (for more details see the online or offline help)||-|
|Assign room controllers||Add or remove the Climate Controller as a source for individual Intelligent Room Controllers.
Further settings (Priority, PWM, etc.) can be made in the configuration dialog of each Intelligent Room Controller.