Product description
Based on the many years’ experience from the Comfort series, Nilan has developed a future-proof system, Comfort CT500, that meets the requirements of ventilation systems.
The unit is constructed to ensure low energy consumption by optimising the air flows in the system and thereby reducing the internal pressure loss, as well as using quality components with low energy consumption.
We have thereby developed an energy-efficient ventilation system with heat recovery for homes and smaller commercial buildings with a ventilation requirement of up to 500 m3/h.
Comfort CT500 is factory tested and ready for use. Installation and commissioning must be performed by an authorised electrician.
OPERATION
Intelligent humidity control
Nilan’s humidity control automatically adapts to the needs of inhabitants or the building itself.
The intelligent CTS400 / CTS602 control unit does not require a set air humidity level (RH) to manage the air exchange. Using the integrated humidity sensor, the control unit calculates the average humidity over the past 24 hours and regulates the air flow accordingly.
Consequently, the unit’s efficiency is based on actual instead of theoretical air humidity levels.
Automatically adapting to air volume requirements saves energy as the number of persons in a home is relevant as to how much humidity is produced.
The unit also adjusts automatically to summer and winter levels.
AUTOMATION CTS400
CTS400 Control
CTS400 is a simple and intuitive control panel with a complex control system that contains many useful functions. On the control panel you can set the fan speed level, turn the unit on and off and see potential alarms.
When installed in rental properties, hotels etc., you can lock the panel so tenants cannot turn off the unit and/or alter the fan speed level.
The many functions of the control system enable you to connect, for instance, after heating elements and a CO2 or VOC sensor. The control system includes, as standard, user selection programs, an intelligent humidity control system and an integral fire automation system.
CTS400 has open Modbus communication that enables connection to external CTS systems.
The Modbus connection can also be connected to a Nilan gateway cloud solution that allows you to control and monitor the unit via a smartphone APP solution.
External communication
The CTS400 control unit communicates by default with Modbus RTU RS485 communication. A CTS system using this form of communication can easily be connected to the unit.
Nilan units have an open Modbus communication, i.e. not only can the unit be monitored, but its operation can also be set in the same way as it can via the operating panel.
The protocol is by default set up for a Modbus RTU30 address; however, values can be set between 1 and 247.
A Modbus converter allows you to connect one or more units to a computer to monitor and control the unit.
PC-Tool
Nilan provides a PC tool for creating settings and for balancing the unit. This gets installed in the installer’s computer. Via a USB connection on the outside of the unit it is then connected to the circuit board for the unit.
The selected settings can be saved to the installer’s computer and can be copied to another unit where the same settings are required. If necessary, PC Tool also allows the installer to update the software in the unit.
The user has no access to alter the settings via PC Tool.
Nilan User APP
By purchasing a Nilan gateway, the user can gain access to the unit via a Nilan User APP. The APP enables the user to access and monitor the current operation, also from the outside of the property. The APP allows you to adjust the default settings of, for instance, room temperature, fan speed level and the humidity control system.
The APP shows when filter change is next due. This is an important function, and you are automatically notified when filters need changing or an alarm is triggered.
It also provides you with useful trend curves so you can follow the operation of the unit for the previous week with regards to, for instance, room temperature or humidity level.
Using a LAN connector, you connect the gateway to the Modbus of the unit and then to the user’s internet router via a LAN or a Wi-Fi connection. This creates a secure cloud connection between the unit and the smartphone.
AUTOMATION CTS602
CTS602 Control
The CTS602 HMI touch panel is featuring a wide range of functions, e.g., menu-controlled operation, weekly programme settings, filter monitor with timer, fan speed adjustment, summer bypass (free cooling), supply-heating element control, error messages etc.
The CTS602 comes with factory settings, including a default setting which can be customised to operational requirements to achieve optimum operation and utilisation of the system.
There is an option for selecting between 2 front page images for the main screen.
Operating instructions for the CTS 602 can be found in a separate user manual supplied with the unit.
Nilan User APP
By purchasing a Nilan gateway, the user can gain access to the unit via a Nilan User APP. The APP enables the user to access and monitor the current operation, also from the outside of the property.
The APP allows you to adjust the default settings of, for instance, room temperature, fan speed level and the humidity control system.
The APP shows when filter change is next due. This is an important function, and you are automatically notified when filters need changing or an alarm is triggered.
It also provides you with useful trend curves so you can follow the operation of the unit for the previous week with regards to, for instance, room temperature or humidity level.
Using a LAN connector, you connect the gateway to the Modbus of the unit and then to the user’s internet router via a LAN or a Wi-Fi connection. This creates a secure cloud connection between the unit and the smartphone.
External communication
The CTS602 control unit communicates by default with Modbus RTU RS485 communication. A CTS system using this form of communication can easily be connected to the unit.
Nilan units have an open Modbus communication, i.e. not only can the unit be monitored, but its operation can also be set in the same way as it can via the operating panel.
The protocol is by default set up for a Modbus RTU30 address; however, values can be set between 1 and 247.
A Modbus converter allows you to connect one or more units to a computer to monitor and control the unit.
OPERATION
Frost protection
All ventilation units with a counterflow heat exchanger will ice up if the outdoor temperature is below freezing for a prolonged period.
The extracted air condenses when it is cooled down during heat recovery. The high temperature efficiency will slowly turn the condensate to ice, which will block up the counterflow heat exchanger unless action is taken to remedy this.
Consideration must be given to whether the unit’s operation can be protected during a lengthy period of frost or whether it is acceptable to decrease its operation.
In homes which are occupied at night, it would be advisable to protect the unit against frost when the outdoor temperature is coldest by using a pre-heating element. On the other hand, if the ventilation is for an office, it may be acceptable to decrease the operating level at night.
