Zone Controller | rickardair

Zone Controller

Rickard is proud to introduce the HVAC system controller reimagined. The Rickard Zone controller is a highly configurable AHU controller that seamlessly integrates with the Rickard diffuser network without the time-consuming programming requirement of traditional controllers.
 
It has been designed to make the setup, testing, monitoring, scheduling and management of an HVAC system quicker, easier and more affordable than ever.

Rickard is proud to introduce the HVAC system controller reimagined. The Rickard Zone controller is a highly configurable AHU controller that seamlessly integrates with the Rickard diffuser network without the time-consuming programming requirement of traditional controllers.
 
It has been designed to make the setup, testing, monitoring, scheduling and management of an HVAC system quicker, easier and more affordable than ever.
 
The unit contains a total of 48 configurable I/O ports, a BACnet client, server interface and a touch screen user interface. It runs on a Linux operating system powered by a state-of-the-art System on Module PCB running a 1 GHz Dual-core processor with 2GB of RAM and 8GB of Flash memory.
 
Configuring the system is done by selecting customisable configurations, accessible through the units’ modern web interface. The built-in tools make the setup of the system faster and the results more repeatable than ever before. As the system is configured, a clean graphical representation of the AHU is automatically generated giving the user the tools to test, monitor, diagnose and manually override the system in real-time.
 
An easily configurable trend log tool is built-in to monitor the systems performance, the buildings comfort and its energy efficiency. Should the user desire to test an alternative control strategy, it is a simple matter of selecting a different pre-configuration that can be evaluated through the dashboard and trend log tool.
 
The controller can be used to control a stand-alone AHU in any configuration or in conjunction with a Rickard MLM diffuser system. Since the controller was designed to work seamlessly with a Rickard MLM diffuser network, there are a number of benefits. Integration is easy and efficient; AHU control is stable and the buildings comfort levels and efficiency can be improved.
 
If you’re looking for a high powered, highly configurable AHU controller without the programming hassle and associated cost of traditional controllers then Rickard has the controller for you.
Control
The Zone Controller controls AHU temperature, pressure, CO2 and humidity of supply air. These control functions can be individually enabled as part of the configuration. The method and parameters for the individual controllers are also configurable.
 
Configuration
The operation of the Zone Controller is configured using a web browser. The following groups of data can be configured:
 
• Active controllers
• System control options for purging, fire, manual overrides from BMS, etc.
• Schedule of operation
• Control parameters for temperature, pressure, CO2 and humidity
• Simulation parameters
• Valid data points and data point properties
 
Points list
The points list allows the linking of sensors, actuators and digital I/O to physical I/O lines.
 
Log files
A log file is maintained which captures all major system operational events and their time.
 
Trend logs
The values of all data points are captured in a time series database both synchronously and on change of value. The web browser is then capable of displaying the trends of selected data points. The display tool is configurable and the user may define the number of graphs, the number of variables per graph and the display settings of the trend graphs.
 
Simulation
It is possible to simulate a number of sensor and digital input data points. The data profile can be configured as a step, square wave, etc., the frequency and amplitude are also configurable.
 
MLM Diffuser Interface
The Zone Controller implements a BACnet/IP interface to interrogate the diffuser network. The diffuser network information is accessed through a Master Communications Unit (MCU). The Zone Controller can then read and write points like temperature, disk position and occupancy status information in the Supply Area.
Feature list:
 
• 8 x Digital inputs, optically isolated and can be either AC or DC input.
• 8 x Digital outputs, NO, NC, and COM relay connection.
• 16 x Analog Inputs 12-bit.
• 16 x Analog Outputs 12-bit.
• Device User Interface (Local User Interface (LUI)) with 320x240 Resistive touch LCD Display
• 6 x LED’s for Unit status displays
• USB-B interface.
• USB-A interface.
• Micro SD Card for expandable memory up to 64GB.
• 2 x 100Mbit switch ports (Ethernet 0).
• RS485 port for Modbus or MS/TP (future release).
• Dual-band 2.4/5 GHz and 802.11 ac/a/b/g/n (Future release).
• Bluetooth/BLE (Future release).


Dimensions

NETWORK CONNECTIONS

  • Protocol - Ethernet
  • Data Link and Physical Layers - ANSI/IEEE 802.3 10/100 Mbps Ethernet Auto-MDIX, 100m maximum segment length. Default IP address for Ethernet 0 is 192.168.0.252.

BMS interface
The BMS interface is a BACnet/IP interface where the BMS implements a BACnet client and the ZC implements a BACnet server. The points list available to the BMS is configurable.

Diffuser interface
The ZC interfaces to the diffusers via the MCU2. Communication is via the BACnet protocol. The MCU2 implements a BACnet server whereas the ZC implements a BACnet client.

RS485
This interface allows for either Modbus or MS/TP interfacing. These are for future release.