1. Stratos ECO Training ECM “Smart” Circulators for Heating, DHW Recirculation Systems Presentation Date – New Jan 2008 ECO 16 FECO 16 FX ECO 16 BFX Stratos ECO Circulators

2. Stratos ECO Cast Iron & Bronze ECM (Electronically Communicated) technology Smart pump adjusts flow to system changes Auto setback Anti-seizing feature Easy wiring quick connectors Easy set-up (∆p-v in feet of head via red button) Interchangeable with all competitors Replaces 12 competitor’s types 115 and 230 volt, models, cast iron & bronze Max temp 230 deg F, min temp 60 deg F Maximum pressure 145 PSI Minimum pressure – see sheet Maximum wattage 59, minimum wattage 5.8 Class “A” energy rating WILO Small Wet Rotor Circulators ECM “Smart” Automatically Controlled Circulators Eco 16 FX & BFX Model Eco 16 F Model

3. Model Number Designation 16 = Maximum Head in Feet (adjustable from 4’) B = Pump Housing (Volute) Material (B for Bronze, no Letter for Cast Iron) FX = Pipe Connection F = Flanged FX = Flanged Rotated ECO 16 ( ) FX

4. Benefits - External Fits all Competitors’ Models (2 Bolt Residential Flanges) 2 Allan Screw Connection Automatic Air Venting (Inspection and Service Screw) Red Button Sets Head (∆pv in feet) Also Activates/deactivates Setback

5. Wilo-quick connections Benefits – Electrical 115/1/60 & 230/1/60 Volt 2 Electrical Openings

6. Sizing Examples Sizing Examples – Simplified Heating Determine BTU’s and Temperature Differential (mostly given) Calc Flow (USGPM) = BTU per hr/500 (constant)/temperature diff deg F EG: 10 USGPM will pump 100,000 BTU/hour @ 20 deg F differential Once flow known size pipe based on max velocity of 4 ft/sec Higher velocities cause noise, erosion and air problems Once pipe sized estimate friction loss Manifold systems heads are not additive – use the highest loss loop Once friction loss and flow are determined match point to curve Remember to use the correct companion flanges Rotate Inventory!

7. Installation Instructions Install with shaft horizontal Pump in any direction (vertical, horizontal etc.) If pumping vertical try to pump up (with air) Locate in system where suction pressure as high as possible Pump away from the thermal expansion tank! Fluid should be relatively free of abrasive particles Damages sleeve bearings in wet runners and mechanical seals in dry runners Do not use any stop leak products (see label) Install with terminal box @ 9:00, 12:00 or 3:00 positions Installing @ 6:00 can allow fluid into terminal box during air bleeding Do not install at the highest point (air) Do not install at the lowest point (dirt) Be careful with the suction side (laminar flow)

8. Application Examples Applications Cast Iron (Ferrous) Models Primary and Secondary Hot and Chilled Water Systems Up to 50 % Maximum Glycol – DO NOT USE STOP LEAK PRODUCTS! Closed loop (airless) hot and cold circulation systems (60 to 230 deg F) Bronze (non-Ferrous) Models Open loop systems (ie Domestic HW Recirculation) – Max Temp 150 deg F (66 deg C) Higher temps can cause precipitation of Calcium in hard water applications Maximum working pressure 145 PSI Minimum inlet pressure 0.7 PSI @ 122 deg F (50 deg C) 4.4 PSI @ 203 deg F (95 deg C) 14.5 PSI @ 230 deg F (110 deg C) For indoor use only

9. ECO Documentation Click Data Sheet to Access PDF file

10. Cross Reference: Cast Iron Pumps New body launched in 2007 Also available in 3 speed version

11. Cross Reference: Stainless Steel and Bronze Body Pump Also available in 3 speed version New body launched in 2007

12. Questions / Comments?