VPL 15 Product description
VPL 15 is an energy-efficient ventilation unit for heat recovery and cooling of homes and small commercial buildings with a ventilation requirement of up to 400 m3/h.
Heat recovery is via a heat pump that can utilise the recovered energy better than with e.g. a counterflow heat exchanger.
The heat pump has a reversible cooling circuit, which means that the unit can both heat and cool the air.
VPL 15 is supplied fully tested and ready for use. Fitting and commissioning must be carried out by an authorised electrician or plumber.
FU15
FU 15 Product description
An option is a FU 15 heat pipe unit with filter, which is connected to the VPL 15 unit.
The heat pipe slightly raises the temperature of the outdoor air, thereby increasing the heat pumps efficiency in the VPL 15 aggregate significantly during the winter.
With an integrated FU 15 heat pipe unit, in most cases there is no need for a heating coil with mixing circuit.
OPERATION
Intelligent humidity control
Nilan’s humidity control automatically adapts to the needs of the family or the building.
The intelligent CTS 602 control unit does not need to have a set level input for air humidity (RH) to control the air exchange. By using the integrated humidity sensor, the control unit calculates the average level itself for the last 24 hours. The average level provides a basis for deciding whether to change the air exchange if the air humidity fluctuates.
This ensures that the unit always runs at its most efficient, based on the actual air humidity level and not on a theoretical one.
This helps save energy because it automatically adapts to the requirements in the home. Whether a large family or a single person is living in the building has a considerable influence on how much humidity is produced.
The unit also adjusts automatically to summer and winter level.
COMMUNICATION
External communication
The CTS 602 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 set upby default for a Modbus RTU 30 address but can be set to a value between 1 and 247.
A Modbus converter allows you to connect one or more units to a computer to monitor and control the unit.
AUTOMATION
CTS 602 Control
The VPL15 is controlled using its CTS 602 HMI touch panel, 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 CTS 602 comes with factory settings, including 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.
