Brochure

11
The new, open
standards compliant
MCX controller
Provides ultimate software control.
It is easy to program, using the C
programming language, the MCX
controller provides unique versatility and
freedom compared to proprietary systems.
The MCX controllers have a software
tool, MCX Design, enabling you
to write your own application in a
graphical ow diagram, but you can
also use the Danfoss standard AHU
application, which meets most of the
market demands such as:
• Control of heating and cooling coils
using PID logic and cascade control
• Control of fans according to air
pressure using PID logic
• Humidity control
• Air quality control
• Free cooling and free heating
• Energy recovery
• The limiting of supply temperature
and humidity
• Management of ON/OFF, 3-point,
0/10V valves
• Management of ON/OFF and 0/10 V
dampers
• Frost protection
AB-QM - Independent
pressure valve
Because of the integrated dierential
pressure controller, the control valve
always has 100% authority and
therefore always oers stable control.
At partial load, there is no overow,
contrary to conventional solutions,
because the AB-QM will always limit
the ow to exactly what is needed.
By installing the AB-QM, the whole
system is divided into completely
independent control loops.
Key benets
• Best pressure independent balancing
and control valve in one - BSRIA
report
• Avoiding overows in partial load,
saves a signicant amount of
electricity both for the chiller and
for the pump, 30-50% compared
to conventional valves, simply by
enabling the AC drive to reduce
pump speeds below nominal
pressure when AHU demand is less
than maximum
• Close to zero commissioning cost, less
than 3 years payback time
Various AMD series electrical actuators
Are used for air dampers in the most common applications in ventilation
systems of buildings. Danfoss AMD dampers feature below 1,000,000
partial cycles, and below 60,000 full cycles, at ±5.
• Damper area up to 8 m
• Selection of rotation direction
• A universal fastener of the
damper shaft
• Spring return
• Current or voltage control input
• ⁄ point or modulating control
• Overload protection
• The angle of rotation selection
and self-adaptation
Easily integrated into BMS systems the brand new digital features and
ecient control of airhandling units result in easy monitoring and operation.