grandis principle

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Our aim is to make the control of the systems as easy and intuitive as possible. Our solutions enable anyone to configure and put together a system in just a few minutes – and completely without a manual!
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At the same time our controllers are flexible enough to meet requirements of any kind!
How do we manage that?
Our controllers are designed on the basis of a modular principle – they are comprised of modules that are perfectly tailored to one other.

What is a multi-functional controller?

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  • Every free output of a Prozeda controller can be programmed with an additional function in a fast and easy way (also the free outputs of flex 400 when connected to grandis 650 HK). We call these additional functions Multi-Functional Controllers (MFR).
    An MFR extends the pre-defined hydraulic layouts in a very flexible way.
  • Depending on a controller type there are up to 20 different multi-functional controller types available. The modular structure of this approach allows hundreds of combinations and can solve even very complicated tasks.

 Temperature difference controller 

The Temperature difference controller is the most widely used function. There is a measurement point at both the source and the sink. If the difference between the temperatures of the two measurement points exceeds a predefined value, the switching output of the multi-function controller switches on.
In addition, a minimum temperature can be set at the source and a maximum temperature at the sink. If the maximum temperature is exceeded or the temperature falls below the minimum temperature, the switching output of the multi-function controller switches off.

Activate                          Settings

Examples

Reloading

Output: R3, Source: S5, Sink: S6

External heat exchanger

Output: R3, Source: S5, Sink: S2

Pool

Output: R2, Source: S3, Sink: S4

Pool with external heat exchanger

Output: R4, Source: S5, Sink: S6

 Heating 

Simple thermostat function. The switching output of the multi-function controller switches on as soon as the temperature falls below the preset switch-on temperature. If the temperature rises above the upper limit of the preset temperature range (hysteresis), the switching output of the multi-function controller switches off..

Typischer Ablauf

Example

Re-heating

Schemenbild Heizen
Output: R2, Source: S5

 Cooling 

Simple thermostat function. The switching output of the multi-function controller switches on as soon as the preset switch-on temperature is exceeded. If the temperature drops below the lower limit of the preset temperature range (hysteresis), the switching output of the multi-function controller switches off.

Typischer Ablauf

Examples

Cooling

Output: R3, Source: S5

Re-load

Output: R3, Source: S5

 Threshold value switch 

As a flexible option of the functions heating and cooling. the switching output of the multi- function controller switches on as soon as the temperature reaches the preset switch-on temperature. If the temperature drops below or rises above the preset temperature range (hysteresis), the switching output of the multi-function controller switches off. To use this function for heating, set the “Hysteresis” value to greater than 0. To use this function for cooling, set the “Hysteresis” value to less than 0..

 Wood-fired boiler 

This function allows you to re-heat the storage tank from a solid fuel boiler. The switching output of the multi-function controller will be activated if the boiler temperature (source sensor) plus the selected temperature range (hysteresis) exceeds the storage tank temperature (sink sensor).
In addition you can also define a switch-on temperature (setpoint temperature). In this case the pump will not start until the switch-on temperature has been reached. With this function the storage tank will be heated to a maximum temperature of 95 °C.

Example

Tipical re-heating


Output: R3, Source: S5, Sink: S6

 Return line boost 

To save energy, energy is supplied to the heating return flow from the solar circuit or storage tank. The mode of operation and relevant parameters are similar to those of the “Temperature difference controller” function.

Example

Return line boost


Output: R3, Source: S3, Sink: S4

 Temperature range 

With this function you can set the upper limit and the lower limit of a temperature range. The multi-function controller will switch only within this temperature range.

 Circulation – temperature-controlled 

The switching output of the multi-function controller switches on as soon as the temperature falls below the preset setpoint temperature. If the temperature rises above the upper limit of the preset temperature range (hysteresis), the switching output switches off.

Example

Temperature-controlled Circulation


Output: R3, Sink: S6

 Circulation – time-controlled 

The circulation pump is switched on and off in alternation within a preset time window. You can configure the setting for the duration of the respective runtime and waiting time.

Example

Time-controlled Circulation


Output: R3

 Timer 

In the case of this function, the switching output of the multi-function controller switches on within the preset time window. 3 time windows with runtime are possible.

 Alarm 

In the case of this function, the switching output of the multi-function controller switches on or off when there is a fault on the sensors used. 3 time windows with runtime are possible.

 HW reheating 

With this function, the MFR output will be switched on when the hot water request is active. The HW reheating can thus be implemented in layers using a three-way reversing valve.

Example

Warm water re-heating

 Solar boost (only grandis 600 SR) 

With this function, the switching output of the multi-function controller is linked either to the solar control or to the “drain-back” function. If the solar control or drain-back function is active, the MFC will be switched on, and at the end of the adjustable runtime it will be switched off again. If the solar control is switched off during this time, the MFR will also be switched off. For the MFC to react again when switched on, the solar power system must be continuously off for at least a selected off period.

Linking is possible to:

Solar control

Drain Back

 Solar redundancy (only grandis 600 SR) 

If a flow fault is reported during this function, the switching output of the MFC will be switched on and it will run in parallel with the solar power system. If the flow fault is rectified within the specified runtime, the link will be cancelled and the MFC will stop. If the flow fault still exists when the runtime has ended, the MFC will be permanently linked to the solar power system. This will be indicated by a fault message. You can use “Reset” to reset the permanent link to the solar power system. This will also reset the fault message.

Solar redundancy

 Mischer 

Mit dieser Funktion können Sie eine Rücklaufanhebung mittels Mischer auf die berechnete maximale Vorlaufsolltemperatur der Heizkreise realisieren. Der Multifunktionsregler benutzt als Referenz je nach Einstellung die Heizungsvorlauftemperatur, die Warmwassersolltemperatur oder eine einstellbare Soll-Temperatur.

Beispielanwendung

Rücklaufanhebung mit Referenz die aktuell höchste Vorlaufsolltemperatur. Regeltemperatur „Heizen“ und Regelmodus “Vorlauf mit Freigabetemperatur”.

Der Mischer wird abhängig vom Sensor Quelle (Sy) und Sensor Senke (Sx) geregelt. Überschreitet die Quelle die Vorlaufsolltemperatur + Hysterese, ist die Funktion aktiv und der Mischer regelt auf die Vorlaufsolltemperatur + Hysterese.

Eine einstellbare Zieltemperatur als Referenz. Regeltemperatur „Festwert“ und Regelmodus “Rücklauf mit Freigabetemperatur”.

Der Mischer wird abhängig vom Sensor Quelle auf eine feste Zieltemperatur geregelt. Unterhalb der Zieltemperatur wir der Mischer zugefahren.

Our service for you

At Prozeda, we work hand-in-hand with our solar and heating systems installer partners in order to provide them with the best possible solutions. As a special service we offer configurations of example systems.
You can download the parameter files, you can use them as they are, or modify them according to your needs. And you can of course use the layouts for you conexio 200. Wie genau das geht, sehen Sie in unseren Kurz-Anleitungen:

Please note, that the following system layouts parameter settings for grandis 650 HK V2.00.26. They are not to be understood as a complete hydraulic circuit diagrams and are only example layouts.
Also, you must verify all settings and parameters carefully before applying in real systems.
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 1 heating circuit with hot water processing + solar 

Layout 110.00 + 1 mixed heating circuit

  • 1 solar circuit (1 collector - 1 storage tank), PWM pump with minimum speed control 30%.
  • 1 mixed heating circuit, linear heating curve. Hot water function.

Schemenbild 1 Solarkreis + 1 gemischter Heizkreis

Settings: PS291404

Record: 19-12-02.txt

 1 heating circuit with hot water processing + solar + wood-fired boiler 

Layout 110.00 + 1 mixed heating circuit + wood-fired boiler

  • 1 solar circuit (1 collector – 1 storage tank), both PWM pumps with minimum speed control 30%.
  • 1 mixed heating circuit, linear heating curve. Hot water function
    Wood-fired boiler over Multi-function controller.

Settings: PS291445

Record: 19-11-29.txt

 1 mixed + 1 unmixed heating circuits with hot water processing + solar 

Layout 111.00 + 1 mixed + 1 unmixed heating circuit

  • 1 solar circuit (1 collector – 1 storage tank), both PWM pumps with minimum speed control 30%.
  • 1 mixed heating circuit, linear heating curve. Hot water function. 1 unmixed heating circuit.
    HW reheating with 3-way valve

Settings: PS021001

Record: 19-12-02.txt

 1 mixed heating circuit+Wood-fired boiler. 

  • 1 mixed heating circuit, linear heating curve. No hot water function.
  • Wood-fired boiler over Multi-function controller.

Schemenbild 1 gemischter Heizkreis + Holzkessel

Settings: PS021009

Record: 19-12-02.txt

 1 mixed + 1 unmixed heating circuits with hot water processing + solar  

Layout 111.00 + 1 mixed + 1 unmixed heating circuit

  • 1 solar circuit (1 collector - 1 storage tank), both PWM pumps with minimum speed control 30%
  • 1 mixed heating circuit, linear heating curve. Hot water function
  • 1 unmixed heating circuit
  • HW reheating with 3-way valve.

Schemenbild 1

Settings: PS021141

Record: 19-12-05.txt

 2 heating circuits with hot water processing + solar 

Layout 110.00 + 2 mixed heating circuits

  • 1 solar circuit (1 collector - 1 storage tank)
  • 2 mixed heating circuits, linear heating curve. Hot water function.

Schemenbild 1 Solarkreis + 2 gemischte Heizkreise

Settings: PS021146

Record: 19-12-06.txt

 2 heating circuits with hot water processing + solar + wood-fired boiler  

Layout 110.00 + 2 mixed heating circuits + wood-fired boiler

  • 1 solar circuit (1 collector - 1 storage tank), PWM pump with minimum speed control 30%
  • 2 mixed heating circuits, linear heating curve. Hot water function with pump

Schemenbild 1 Solarkreis + 2 gemischte Heizkreise + Holzkessel

Settings: PS021208

Record: 19-12-07.txt

 2 heating circuits with hot water processing + solar with 2 storage tanks + wood-fired boiler 

Layout 210.01 + 2 mixed heating circuits + wood-fired boiler

  • 2 solar circuits (1 collector - 2 storage tanks), PWM pump with minimum speed control 30%
  • 2 mixed heating circuits - one of them with flex module flex 400 or Hydroflex module, linear heating curve. Hot water function with pump

Schemenbild 1 Solarkreis + 2 gemischte Heizkreise + Holzkessel

Settings: PS021216

Record: 19-12-08.txt

 2 heating circuits with hot water processing + solar with 2 storage tanks + wood-fired boiler  

Layout 210.01 + 2 mixed heating circuits + wood-fired boiler

  • 2 solar circuits (1 collector - 2 storage tanks), PWM pump with minimum speed control 30%
  • 2 mixed heating circuits - one of them with flex module flex 400 or Hydroflex module, linear heating curve. Hot water function with pump

Schemenbild 2 Solarkreise mit 2 Speicher + 2 gemischte Heizkreise + Holzkessel

Settings: PS021236

Record: 19-12-09.txt

 1 heating circuit with hot water processing + solar with pool heating  

Layout 210.01 + 1 mixed heating circuit

  • 2 solar circuits (1 collector - 1 storage tank - 1 pool), PWM pump with minimum speed control 30%. (Pump R3 over MFC)
  • 1 mixed heating circuit, linear heating curve. Hot water function

Schemenbild Solar mit Pool-Beheizung + 1 gemischter Heizkreis

Settings: PS021240

Record: 19-12-10.txt

 1 heating circuit with hot water processing + solar with pool heating  

Layout 211.01 + 1 mixed heating circuit

  • 2 solar circuits (1 collector - 1 storage tank - 1 pool), PWM pump with minimum speed control 30%. (Pump R4 over MFC)
  • 1 mixed heating circuit, linear heating curve. Hot water function.

Schemenbild Solar mit Pool-Beheizung + 1 gemischter Heizkreis

Settings: PS021244

Record: 19-12-11.txt