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SVF Models 500-3000
SlimFit Models 550-2000
Application Guide
for
Common Venting SVF and SlimFit Boilers
Hazard Definitions
The following defined terms are used throughout these Instructions to bring attention to the presence of
hazards of various risk levels or to important information concerning the life of the product.
WARNING
!
Warning indicates the presence of hazards that can result in severe personal injury, death, or
substantial property damage.
IMPORTANT
Important indicates additional information that is important, but is not related to personal injury or property damage.
Manual Part Number 550-100-297/0623
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Summary of Contents for Weil-McLain SlimFit 550
- Page 1 ® SVF Models 500-3000 SlimFit Models 550-2000 Application Guide Common Venting SVF and SlimFit Boilers Hazard Definitions The following defined terms are used throughout these Instructions to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product. WARNING Warning indicates the presence of hazards that can result in severe personal injury, death, or substantial property damage.
- Page 2 svf and slimfit boilers — application guide Common Venting Methods and Requirements SVF Boilers (SVF 500-3000) Table 1 Venting increases for SVF using a bell reducer The SVF boilers can be common vented when Original Piping Increased Size Models the following requirements are met. Diameter after 3 ft.
- Page 3 Proof of Closure jumper circuit on the boiler control. See the boiler manual for additional information. IMPORTANT Weil-McLain recommends the use of a Double Acting Barometric Damper or Modulating Damper to ensure the appropriate negative pressure range is kept for Category II venting.
- Page 4 svf and slimfit boilers — application guide Common Venting Methods and Requirements, continued SlimFit Boilers (SF 550-2000) Table 4 Venting increases for SlimFit using a bell reducer The SlimFit boilers can be common vented when the following requirements are met. Original Piping Increased Size Models...
- Page 5 Proof of Closure jumper circuit on the boiler control. See the boiler manual for additional information. IMPORTANT Weil-McLain recommends the use of a Double Acting Barometric Damper or Modulating Damper to ensure the appropriate negative pressure range is kept for Category II venting.
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Page 6: Code Compliance
svf and slimfit boilers — application guide Common Venting Methods and Requirements, continued Code Compliance “Venting of Equipment”, of the National Fuel Gas Code, ANSI Z223.1 / NFPA 54, or “Venting Systems WARNING and Air Supply for appliances” of the Natural Gas and Propane Installation Code, CAN/CSA B149.1, or Provisions for combustion and ventilation air applicable provisions of the local building codes. - Page 7 svf and slimfit boilers — application guide Figure 2 Common venting for SVF 725-1000 boilers (SVF 850 shown) (Based on engineered vent system determined by others) Flue Vent *Double Acting Barometric Damper (by others if needed) * Variable Speed Vent Inducer (by others if needed) Flue Vent Vent slope and condensate...
- Page 8 svf and slimfit boilers — application guide Common Venting Methods and Requirements, continued Figure 3 Common venting for SVF 1500-2000 boilers (Based on engineered vent system determined by others) Flue Vent *Double Acting Barometric Damper (by others if needed) * Variable Speed Vent Inducer (by others if needed) Flue Vent...
- Page 9 svf and slimfit boilers — application guide Figure 4 Common venting for SVF 2500-3000 boilers (Based on engineered vent system determined by others) Flue Vent *Double Acting Barometric Damper (by others if needed) * Variable Speed Vent Inducer (by others if needed) Flue Vent Vent slope and condensate 45°...
- Page 10 — application guide Common Venting Methods and Requirements, continued Figure 5 Common venting for SlimFit 550/750 boilers (Based on engineered vent system determined by others) Flue Vent *Double Acting Barometric Damper (by others if needed) * Variable Speed...
- Page 11 svf and slimfit boilers — application guide Figure 6 Common venting for SlimFit 1000-2000 boilers (Based on engineered vent system determined by others) Flue Vent *Double Acting Barometric Damper (by others if needed) * Variable Speed Vent Inducer (by others if needed) Flue Vent Vent slope and condensate 45°...
- Page 12 WM Technologies, LLC 500 Blaine Street Michigan City, IN 46360-2388 Telephone: (800) 654-2109 weil-mclain.com Manual Part Number 550-100-297/0623...