Summary of Contents for Ventus N-type NVS 080
- Page 1 Ventus Standard unit automation Quick assembly, wiring and commissioning instruction step by step...
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Page 2: Table Of Contents
table of contents INTRODUCTION............................3 INSTALLATION OF AUTOMATION COMPONENTS AND WIRING..............3 ................3 OWER SUPPLY CIRCUITS FOR CONTROL PANEL COMPONENTS 2.1.1 Control panel power supply circuits ....................3 2.1.2 Power supply circuits for electric heater and optional equipment outside the VTS offer ....5 .................... -
Page 3: Introduction
This manual is intended for customers who want to independently assembly, wire and commission the factory VTS automation in the new VENTUS STANDARD air handling unit. The manual applies only to air handling units with the configuration available in CCOL4, equipped with standard accessories offered by VTS, which do not require changing advanced parameters of the control system. - Page 4 components. The cross-section of the power supply wiring for these components should be adapted to the load current. Pay attention to the correct connection of this wiring, especially the PE cable. AC motors (if used) are powered via frequency converters. EC motors are equipped with integrated control systems.
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Page 5: Power Supply Circuits For Electric Heater And Optional Equipment Outside The Vts Offer
To connect the motors with frequency converters (inverters), shielded cables should be used with cross-section adapted to the load currents. The shield should be connected to the "PE" terminal in both inverters and motors. To supply frequency converters (AC motors) or EC motor controllers use cables with 600V test voltage. -
Page 6: Control Circuits - General Information
Fig. 2 Accessories requiring a separate power supply Control circuits - general information 2.2.1 Connection diagram for the uPC3 driver and extension module Individual automation components communicate with the controller either using analog and digital I/O, or using digital communication with the ModBUS protocol. Some of the analog and digital inputs / outputs are implemented directly by the uPC3 controller and some via extension boards (e.g. - Page 7 Before starting the installation of the wiring, refer to the wiring diagram of the controller inputs and outputs provided with the AHU. Fig. 3. Connection of analog and digital (discrete) I/O signals Fig. 4 shows a general connection diagram for the uPC3 controller and PCB EC module. Fig.
- Page 8 Fig. 4. Connection diagram of the uPC3 controller and PCB EC module...
- Page 9 Fig. 5. Example diagram of signal connection to the uPC3 controller and PCB EC module for a control panel with FHPHCV configuration (application code AP|1|1|0|1|0|0|0|6|3|0|0|0|0|0|1)
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Page 10: Analog And Digital (Discrete) Control Circuits
Analog and digital (discrete) control circuits 2.3.1 Installation and connection of temperature sensors Connect the temperature sensors to the controller using shielded cables with a minimum cross- section of 0.5 mm2. Location of temperature sensors: – supply air temperature. Installation in the supply air duct, approximately 2 m behind the heater –... -
Page 11: Connecting Filter Pressure Switches
Fig 6b. Location of B4 sensor behind the rotary heat exchanger for the supply air track at the top or bottom of the unit – AHU size from VVS400 to VVS650. – contact sensor, mounted on the return pipe from the water heater. It is a method of protecting the heater against freezing using the measurement of the return temperature of the heating medium and it is possible to use it in quality control systems of the heater power (with a pump in a short heater cycle). -
Page 12: Connection Of Water Heater Antifreeze Thermostat
2.3.4 Connection of water heater antifreeze thermostat The antifreeze thermostat is an optional protection of the water heater. It should be used with the quantitative method of heater power control. In the case of qualitative control of the heater power, the anti-freezing thermostat can be used in parallel or interchangeably with the recommended method of measuring the heating medium return temperature. - Page 13 AHUs. In the case of units with FanWall type fans (e.g. in Ventus Compact units), the addresses of individual fans will be different. Similarly to analogue I / O, please refer to the diagram generated for the specific application code (supplied with the control panel).)
- Page 14 Fig. 7. Connecting accessories with ModBUS communication.
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Page 15: Wiring Used For Modbus Communication
2.4.1 Wiring used for ModBUS communication Use cabling in accordance with the ModBUS RTU protocol standard. It is recommended to use a twisted pair shielded Li2YCY cable. Two wires will be used for communication, two to power the transmitter or as a reserve. Starting from the uPC controller, common wiring should be routed from component to component, avoiding as much as possible the „star”... - Page 16 Fig. 9. Connection of a pressure transducer (CAV function). Addresses of pressure transducers offered by VTS are set with microswitches inside their housing. The addresses of these components should be set before switching on the AHU supply voltage. Both pressure transducers are delivered with factory set address No. 11, suitable for air supply. In the transducer mounted in the exhaust section, the address should be changed from 11 to 12, as shown in the figure below.
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Page 17: Humidity Transmitters With Modbus Communication
2.4.4 Humidity transmitters with ModBUS communication Addresses of humidity transducers offered by VTS are set with microswitches inside their casing. The addresses of these components should be set before switching on the AHU supply voltage. Both humidity transmitters are delivered with factory set address No. 31, suitable for air supply. In the transducer mounted in the exhaust section, the address should be changed from 31 to 32, as shown in the figure below. -
Page 18: Inverters (Frequency Converters) With Modbus Communication (For Fans And Rotary Heat Exchanger)
Fig. 12. Setting the CO2 transmitter address 2.4.6 Inverters (frequency converters) with ModBUS communication (for fans and rotary heat exchanger) Inverters are programmed directly from their control panels, regardless of the AHU controller. The inverters are factory set to the same default addresses, so to avoid conflict, the programming process must be carried out individually for each of them, with ModBUS communication disabled. - Page 19 IC5 inverter Parameter Code Value Comments P5 input function External emergency shut down - NC Frequency setting method ModBUS-RTU communication IG5A inverter Parameter Code Value Comments Frequency setting method ModBUS-RTU communication LG inverter Parameter Code Value Comments Acceleration time reccomended value 45 sec reccomended value 45 sec Deceleration time factory settings deceleration...
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Page 20: Ec Motors Of Fan Sets And Rotary Heat Exchanger With Modbus Communication
VTS offer). The AHU operation options are presented in Fig. 13. Fig. 13. Operating options of the VENTUS AHU controller. The HMI Advanced panel additionally enables full service support, including changing all AHU configuration parameters. In addition to the physical panel, connected directly to the controller, you can use a virtual panel, available in the standard visualization, which can be displayed on a computer or mobile device. -
Page 21: The First Launch Of Ahu, Configuring Basic Parameters
It can be used with or without a physical panel (with the physical panel disconnected). The operation of the HMI Advanced panel is described in chapter 3.2 of this manual. The way of connecting the computer to the controller in order to start the visualization is not difficult. You can watch it on the video broadcast on YouTube or read in the quick start instructions for connecting your computer, available at www.vtsgroup.com. - Page 22 1. "Alarm" button (triggering active and archived alarms, clearing alarms). When the alarm is active, the button is illuminated in red. 2. Button for changing the operating modes (OFF / Auto / Low / Eco / Comfort). Confirmation with "Enter" 3.
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Page 23: Logging In To The „Menu" Module
4.2.2 Logging in to the „Menu” module In order to carry out any AHU configuration changes, we must log in to the controller "Menu" module. Use the arrows to select the "Menu" module and confirm with "Enter”. Clicking the 'Enter' button several times and then the upper arrow set the access code to 0002. -
Page 24: Setting The Controller Application Codes
Setting the controller application codes We start the operations related to the first start-up by entering the control panel application code. Remember that until the controller parameters are configured, the short-circuit protection of the fans (EC motors or inverters), the rotary heat exchanger and the heater pump should be off. Log in to the "Menu"... - Page 25 Fig. 14. Meaning of individual characters of the application code...
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Page 26: Activation Of Controller Inputs And Outputs
After entering and confirming the code, change the "Running" parameter on the I02 screen from "NO" back to "YES”. On this screen we also choose which temperature is the leading temperature exhaust supply ("temperature control"), we can also activate humidity control ("Humidity control"), select the language for the service menu ("Language") and region for units of measurement (for Poland the correct setting is "INT"). -
Page 27: Sensors Calibration
Sensors calibration G05 and G06 screens are used to calibrate sensors and transducers. The differences in the sensor indications may result from the length of the cables used and other mounting conditions, which is why we recommend performing the calibration process the first time you start AHU. -
Page 28: Checking The Correctness Of Setting General Communication Parameters
4.7.1 Checking the correctness of setting general communication parameters We check whether the correct general communication parameters are set in the controller (screen "I07"). The correct value for the "Baudrate" parameter is 9600. 4.7.2 Configuration of communication with inverters (in AHU with AC motors) The inverter programming steps are described in chapter 2.4.6 of this manual. - Page 29 We start the configuration from the screen "I03", in which we set the type of motors separately for supply and exhaust fans. On the same screen in the following lines we set the type of control (CAV, VAV or NONE - fixed frequency) and the number of supply and exhaust fans.
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Page 30: Programming Ec Motors
On the next screen (I44) we can set a reserve increasing the maximum rotational speed in relation to the speed at the nominal operating point. The function can be used to compensate for additional flow resistance in a ventilation system or with dirty filters. 4.7.4 Programming EC motors Next, we will program communication and operating parameters of EC motors via the AHU controller. -
Page 31: Configuration Of Communication With A Rotary Heat Exchanger
We remember that we start configuring the next engine after completing the full procedure for the previous one. If the AHU is equipped with a rotary heat exchanger, after programming the last fan, carry out the heat exchanger programming procedure described in section 4.7.5. If the AHU is not equipped with a rotary heat exchanger, after programming the last fan, switch on the voltage supplying all fans and other AHU components and use the "Set"... -
Page 32: Use Of Ahu
After confirmation, AHU is ready to work. Use of AHU Setting the operational parameters (temperature, humidity, efficiency, etc.) The "SET" module is used to change the user parameter settings. The first screen is for displaying the active settings. On the next screens we set the required parameters (depending on the AHU configuration: temperature, humidity, CO2, supply and exhaust air efficiency). -
Page 33: Switching On The Ahu, Changing The Operating Modes
When everything is ready, we can turn the AHU on. Attention: Changes to other AHU operating parameters not listed above should only be made in justified cases and should be carried out by trained persons with relevant experience. It is recommended that these activities be carried out by the VTS Service Department. -
Page 34: Viewing Current Operating Parameters
Viewing current operating parameters The "Info" module is used to view the AHU operating parameters. Its operation does not require much skill. Scrolling between screens is done using the arrows. Sample screens: Alarms If an alarm or alarms occurred after turning on the AHU (illuminated upper left HMI Advanced panel button), check what is causing it by pressing the illuminated alarm button.