Mitsubishi Electric adds to the capability of its controllers
Mitsubishi Electric has introduced two more air-conditioning controllers that provide advanced control options via newly designed and simplified high-resolution interfaces. The controllers enable users to benefit from the latest developments in easy-to-use controls for energy-saving features as well as for the more standard controller operations.
One of the new controllers is the AT-50A MNET centralised controller. It can control and monitor up to 50 indoor units via a compact touch-screen interface. It offers many of the features of the existing AG150 centralised controller offering. For operators, it also comes with physical buttons to make the operation of basic functions quick and effective. An on/off button will turn off all indoor units, and two function buttons can be assigned to a pre-programmed operation to provide control from a single touch.
The other new controller is the PAR-30MAA local control (pictured). As well as all the standard control functions, this unit offers advanced functions to help installers and contractors commission a system, carry out maintenance checks and look for errors. There are four main buttons and four dynamically changing function buttons under the new screen.
The AT-50A is 18 cm wide and 3 cm deep. It can be mounted directly onto the wall, making it easier to retrofit. To control a single City Multi VRF air-conditioning system, this controller can be installed onto the MNET line for the indoor units and take its power from there.
Lossnay heat-recovery ventilation units can be interlocked with the AT-50A, enabling energy to be saved when heat-recovery ventilation is in operation. There are limits on set points for heating and cooling.
The PAR-30MAA controller also has set-point limitation and auto-return of set points.
