The Catalyst Technology
The CATALYST is a retrofit technology for constant volume rooftop
HVAC systems. This patent-pending retrofit process and technology is
a multi-faceted improvement that will typically reduce energy
consumption in these systems by 30-40%.
The core of the CATALYST is a controller with our proprietary
Opti-Run fan control logic. We are able to
embed this custom logic, along with several additional energy saving
functions, into the controller. This reduces the number of components
and installation time, which allows us to provide a more attractive
financial payback for clients. Once installed, the CATALYST device
optimizes the heating, cooling, economizer, and ventilation functions
of the HVAC equipment in response to input from the existing
thermostat or building management system.
The installation of this technology does not undermine the
integrity or performance of the unit. The device is installed between
the thermostat (or BMS controller) and the control terminals on the
HVAC unit. The CATALYST takes the normal thermostatic controller
commands and adds intelligence by using proprietary logic, which
enables the HVAC unit to make better decisions regarding its
operation. This approach to system integration allows us to interface
with a variety of systems in the same consistent manner. The CATALYST
technology also includes the installation of additional sensors
designed to provide critical information to the controller. This
allows the technology to optimize the performance of the unit and
provide feedback on the system’s operation and energy performance.
The CATALYST also reduces maintenance and service costs associated
with each piece of equipment. The fan speed control feature reduces
wear and tear on the fan motors by providing soft-start capability.
By improving the control strategies, compressor runtimes are reduced
and life spans are increased.
The logic for all of these strategies is embedded in the onboard
programmable logic controller by CATALYST manufacturer Yaskawa and
cannot be changed in the field except by authorized personnel with
specific programming tools.
Yaskawa also factory-installs the external wiring harnesses to
minimize installation error and access to the internal controller
terminals. This approach will reduce the potential for unauthorized
field changes that may undermine the anticipated energy savings and
creates a process that will produce reliable and repeatable energy
savings.
