The document discusses an innovative boiler that provides significant energy savings through its capabilities and proper application. It has unprecedented capabilities like 92% efficiency, full modulation, and variable speed combustion. It also allows for superior fuel utilization, application versatility, and control capability. Integrating the boiler and understanding system design issues are essential to realizing its energy savings potential. The document emphasizes properly sizing and engineering the venting system.

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2. MACH Series

5. Digital PID Control...

6. Electronic Air Volume Regulation...

7. Precision Fuel-Air Ratio Controller... … excellent repeatability

11. So What ? Why does this boiler save so much money?

12. Two essential factors… The capabilities of the boiler Proper application of the boiler

13. Unprecedented Capabilities Whisper quiet 92% efficiency 99% efficiency possible Aluminum alloy metallurgy Cast metal, sectional construction No push nipples or gaskets Designed for full condensing service Any temperature 70 o to 200 o F

14. Superior Fuel Utilization Full modulation burner 5:1 turndown Variable speed combustion air fan Zero offset fuel-air ratio control Fuel flow automatically tracks air flow Automatic air density compensation Low O 2 / CO / NO x standard

15. Superior Application Versatility Small diameter venting Positive pressure venting 100 equivalent ft. x 2 0.22” w.c. x 2 = 0.44” w.c. Multiple venting arrangements Extremely low electrical consumption Certified at 3.5” w.c. gas pressure

16. Superior Control Capability Microprocessor based integrated burner management & operating control (black box technology) Digital touch pad interface Sophisticated TC algorithms DHW priority capability Advanced monitoring & protection algorithms (including freeze protection) Multiple access levels

17. Even the little stuff… Low water-side pressure drop Victaulic TM connections Very small footprint Only 24” (61 cm) wide Light weight Available for modular configuration with multi-boiler modulation and sequencing control packages

18. Design certified Factory fire-tested Factory authorized startup Exceptional warranty

19. Peak Efficiency at Part Load… … with smooth 5:1 turndown

20. Variable flow Variable temperature Low temperature Full modulation

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22. What about systems? Integrating the boiler (understanding the system design issues) Installing the boiler (understanding the boiler application issues)

23. Q = A x LMTD x U

25. Lower Temp, Better Part-Load Control More Flow, More KWH Efficiency Increases Higher Temp, Poor Part-Load Control Less Flow, Less KWH Efficiency Decreases Terminal Coils Main Pumps Boiler

26. Design Issues Flow-temperature trade-offs Source-sink relationships Load profile & boiler size-quantity Boiler integration strategy & piping design

29. A home for the heat?

31. Current Design Limits 200 o F 50 PSIG Flow range

36. Critical Issues Get the piping right Get the gas supply right Get the chimney right

37. Venting Categories Category I – A non-condensing gas appliance that operates with a non-positive vent pressure. Category II – A condensing gas appliance that operates with a non-positive vent pressure. Category III – A non-condensing gas appliance that operates with a positive vent pressure. Category IV – A condensing gas appliance that operates with a positive vent pressure.

38. Multiple boiler venting systems must be designed to prevent flow of combustion air or combustion products through off-line boilers. The boiler’s vent outlet diameter may or may not have anything to do with the proper vent size. The venting system and all of the appliances attached to it must belong to the same venting category. Important Chimney Sizing Facts

39. The chimney is an engineered system… … it must be engineered !

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