Greffen Systems Greffen Systems Inc.Inc.

GrGreen-een-EffEfficient-icient-EnEnergyergy

•Reduce Fuel consumption 10%-20%•Short ROI- 24 months or less•Reduce Green House Gases•Reduce Boiler maintenance

What it does do...

““Cruise Control for your Cruise Control for your boiler”...CAM Magazine boiler”...CAM Magazine 3/20103/2010

What it doesn’t do...

•Adversely affect customer’s comfort•Increase maintenance costs•It is not a “time delay” system

Fire and Forget technology for the boiler.

Just hook it up and let it go...

What is going on?What is going on?......Real Calls vs False CallsReal Calls vs False Calls

Real Calls- When there is an actual Real Calls- When there is an actual demand or need for heat.demand or need for heat.

False Calls- When the water temperature False Calls- When the water temperature drops due to natural cooling (no actual drops due to natural cooling (no actual demand for heat).demand for heat).

What the M2G does...What the M2G does...

By learning the thermodynamics of each By learning the thermodynamics of each system, the microprocessor can tell the system, the microprocessor can tell the difference between Real Calls and False difference between Real Calls and False Calls.Calls.

This allows the M2G unit to cut back on This allows the M2G unit to cut back on the number of unnecessary firings, the number of unnecessary firings, thereby saving fuel costs.thereby saving fuel costs.

How does it work?How does it work?The micro-processer based algorithms are designed to The micro-processer based algorithms are designed to

monitor 3 variables, monitor 3 variables, Boiler Inside TemperatureBoiler Inside Temperature Inlet TemperatureInlet Temperature Outlet Temperature Outlet Temperature

...and ...and Most Importantly! Most Importantly!

How these variables change over time (i.e. How these variables change over time (i.e. every 10 seconds).every 10 seconds).

Dynamic vs Static Dynamic vs Static ControlControl

Allows for BMS overridesAllows for BMS overrides Reduce firings by 30-50%Reduce firings by 30-50% Reduce MReduce Maintenance costs costs

The M2G constantly adjusts it’s operational dynamics to meet ongoing conditions.

Where it Where it works?works? Over 4,000 units sold in Europe to date.Over 4,000 units sold in Europe to date.

Over 50 sites since early 2010 in the Over 50 sites since early 2010 in the USA, across all climates...USA, across all climates...

Sysco FoodsSysco Foods Nisbet Building, MSUNisbet Building, MSU Detroit Mound Road Correctional Facility, MI.Detroit Mound Road Correctional Facility, MI. IRS Facility, GA.IRS Facility, GA. HertzHertz NissanNissan University of North TexasUniversity of North Texas Chicago Public SchoolsChicago Public Schools Plaza TowersPlaza Towers L3 CommunicationsL3 Communications

For More Details and For More Details and Information...Information...

Please visit their website at:Please visit their website at:www.greffensys.comwww.greffensys.com

Or call 1.888.544-4733Or call 1.888.544-4733