M&M Refrigeration’s controls division (M&M Systems) is based in Ormond Beach, Florida, and specializes in the design and manufacture of innovative automated control systems. The controls division can provide solutions for everything from simple, commercially sold units to complex custom industrial plant systems.
Our main products and services are grouped into the following categories to meet the needs and budgets of any customer:

Commercial Controls
Compressor Controls
Plant Controls (microprocessor or PLC)
PC Monitoring Software

Our microprocessor-based, scalable hardware platform is common across the entire M&M product line and provides the following standard features:

Bright and easy-to-read displays
A high degree of consistency in the user interface
Stand-alone design that does not require a PC to operate
Interchangeable parts from compressor to the plant control system panels
Designed to support future expansion
Designed–in backward compatibility

Common hardware features include:

NEMA 4 or 4X panel
Full numerical keypad
Multiple sized backlit displays with graphics capability
Support for up to 64 analog inputs
Support for up to 16 analog outputs
Support for up to 224 digital I/O
Support for up to 4 communication ports
High efficiency universal power supplies
Battery back up memory
Optional high speed modem
Support for open communication protocols


Our control system software is built around a core infrastructure providing the basis for everything we do. The way data is displayed, the navigation of screens, alarm processing and logging of data are all standard features in every microprocessor product we produce. Every refrigeration control software function is designed to be easily adaptable to meet our customers’ needs. The list of software functions continues to grow with an ever-expanding set of standard features and options.

This approach allows us to deliver products with a common look and feel, software that is fully tested, the ability to support all levels of facility complexities and provide a system to meet any budget size. Some of our software’s key features include:

Standard infrastructure (displays, logs, alarm processing)
Standard software packages
Screw compressor controllers to retrofit all major manufacturers’ units
Reciprocating compressor controllers to retrofit all major manufacturers’ units
“Off The Shelf” controllers such as evaporator panels, condenser panels, pump package panels and ice rink skid panels
Stand alone controllers for ice machines, spirals, chillers, engine control, etc.
Many options available in each module
What a user-friendly interface should look like:
Meaningful, readable displays with information organized by function, making the system easier to use
Transfer of training – consistent user interface across all product lines including PC software; you only need to learn one system
“At a Glance Technology” – data formatted and highlighted for quick reference by the operator
Logs — extensive logging capability provides a very useful diagnostic tool for isolating system problems
Alarms and failures — extensive alarms with names in user-friendly text