Description

kVent series, Controller for ventilation units

ventilation controller (kVent) is a controller that guarantees the highest ventilation efficiency, which can be from simple full fresh units to complex air conditioners. whose refrigeration circuit is inside the air conditioner.

Its unique step-by-step installation program guides the end user to configure the controller without the need for programming knowledge. Which saves 70% of setup time.

This Air ventilation controller can be used to control and operate different types of air conditioners. This controller can be connected to equipment that can perform optimization and increase accuracy and reduce energy consumption.

kVent software capabilities

This company has produced kVent software with a tree structure for setting up kinds of ventilators under the VIDA brand.  Designing of this software is in such a way that it provides a set of functions along with the required hardware facilities as a solution to the customers. The program provides the customers requirements of a simple full fresh air conditioner to a return air conditioner. (Supply + Return) with wide facilities:

• Energy recovery
• Direct connection to humidification (isothermal or adiabatic). Also other peripheral equipment such as motor dampers, control valves, and integration for building unit management (BMS)
• Ability to select the type of fan control
• Various strategies to control temperature, humidity, and air flow and dozens of other attractive features

In terms of hardware of controller for ventilation units , it provides the facilities needed to set up air conditioners in the form of a kit where all its components are compatible with each other. we call the sum of all facilities necessary to start and control an air conditioner, including software, controller, sensors, and actuators, “solution”.These solutions are provided based on the request of the customer and by checking the type of air conditioner under the brand name VIDA and by the Kara Ravesh Saba Company.

Flow diagram of an air conditioner controller

Types of  kVent air ventilation controller

Management and control the dampers is possible as ON/OFF and modulating according to the selected control strategy in the air conditioner. If customer activates the economic mode, the motor control of the dampers will work modulating.

Features of the kVent air ventilation controller

The main features of the kVent air ventilation controller

Temperature control

User can select the temperature control strategy in the supply air, the return or the exhaust points of the units, and the room temperature in the settings. Each of these points where the temperature is controlled can be easily selected and adjusted by the user. Accordingly, a sensor suitable for that place is installed in each of the mentioned places and its temperature is monitored instantly. The control system measures the temperature and with the control algorithm (PID), adjusts the temperature in that place. To adjust the sensitivity and performance of the system, it is necessary to adjust the PID parameters to an experienced expert.

Humidity control

There are similar facilities to control the humidity in the supply or in the room of the air conditioner. The operator can control the humidity by adjusting the controller at each of these two points.  After installing the humidity sensor of the desired points, the amount of humidity is measured and compared with the set point. If the humidity level is low, the central control system sends a request to the humidifier (isothermal or adiabatic).  To control the temperature and humidity, a room temperature and humidity module we call it th-Tune is usfull.

Flow control

Airflow control and air quality are also other main functions of air conditioners. For this function,user can create precise control functions and use in the kVent (air ventilation controllers) solution. In the kVent program, there are various functions to control and protect different parts of the fans.

In addition to increasing accuracy in performance, protection of auxiliary and main equipment of the ventilation unit (such as fan and compressor) also causes the efficiency of energy consumption. These functions are in such a way that the user can activate or deactivate them according to his needs. This intelligence in software development makes it able to meet various requirements with a flexible approach.

Fieldbus network of a Kvent controller

Maintenance of filters in the kVent air ventilation controller

In the monitoring section of filters for aluminum, bag, or HEPA (for hygienic systems), control and monitor them based on DPT and DPS sensors is possible.

Monitor and calculate the operating hours of fans, valves, compressors, and dampers continuously by the control system is possible. And in the time period specified by the user, it issues a warning for the periodic service of this equipment based on the hours of operation. Before starting up, user can manually activates or deactivates all active equipment such as fans, valves, and  for testing.

Integration with the BMS and supervisory systems

There are wide range facilities for monitoring and supervision or integration into a BMS system. By default, customer can use of Modbus RTU and TCP/IP protocols. Therefore, in order to use this equipment in the building management system (BMS),Program can control these systems . Also can operate based on a pre-defined address table.

Kara Ravesh Saba offeres another feature with Vida brand is a supervisory system that customer can use it as Plug and Play. This air ventilation controller makes the users of such systems unnecessary to create expensive monitoring systems. The v.Cloud system provides the possibility of creating a local monitoring structure or a remote connection as quickly as the necessary hardware infrastructure for monitoring. which can identify the information and performance of air conditioning systems and other subsystems of the Vida brand without the need for any programming. Save the resulting information.

Displays and HMI

In kVent ventilation controller, user can use various types of user interfaces such as a display (PGDE) and color HMI. Human Machine Interface (HMI) is available with different sizes (4.3,7,10 inches).

User can use PGDE display to quickly make settings, which is important and practical with six simple control keys during the start-up and settings of various ventilation and refrigeration systems.

Another important feature is the web user interface (Web User Interface). The user can access these web pages through the TP/IP protocol. It provides a wide range of features to the user will have access.

Time Scheduler and time bands in ventilation controller (kVent)

preparation of the time scheduler for air conditioner activity which can be adjusted and operated on a daily, weekly, or monthly basis, is important for customers. As predefined profiles based on temperature, humidity, or airflow set points are activated or deactivated at specified times.

Similarly activation the time bands for the operation of the air conditioner with the required functions is possible. Also uses the room temperature and humidity module (the-Tune).

For more information, refer to the following link:

www.carel.com/air-handling-and-ventilation