Gas-fired water boiler Vent Supplement Ultra-80, -105, -155, -230 & -310 Installation of: • Vent piping • Air piping with This document must only be used by a qualified heating installer/service technician. Read all instructions, including this Supplement and the Boiler Manual, before installing. Perform steps in the order given. Failure to comply could result in severe personal injury, death or substantial property damage.
GAS-FIRED WATER BOILER — Vent Supplement Contents Please read before proceeding ........................................................ 2 Vent and air piping materials ............................................................ 3 Prepare boiler location ...................................................................... 4 Vent/air termination — through roof ................................................ 6 Vent/air termination — sidewall ........................................................
GAS-FIRED WATER BOILER 1 — Vent Supplement Vent and air piping materials Use only the materials listed in the table below for vent and air pipe and fittings. Failure to comply could result in severe personal injury, death or substantial property damage. Installation must comply with local requirements and with the National Fuel Gas Code, ANSI Z223.1 for U.S. installations or CSA B149.1 or B149.2 for Canadian installations.
GAS-FIRED WATER BOILER 2 — Vent Supplement Prepare boiler location Removing from existing vent Do not install the Ultra into a common vent with any other appliance. This will cause flue gas spillage or appliance malfunction, resulting in possible severe personal injury, death or substantial property damage. Failure to follow all instructions can result in flue gas spillage and carbon monoxide emissions, causing severe personal injury or death.
GAS-FIRED WATER BOILER 2 — Vent Supplement Prepare boiler location Air contamination (continued) Table 1 Corrosive contaminants Pool and laundry products and common household and hobby products often contain fluorine or chlorine compounds. When these chemicals pass through the boiler, they can form strong acids. The acid can eat through the boiler wall, causing serious damage and presenting a possible threat of flue gas spillage or boiler water leakage into the building.
GAS-FIRED WATER BOILER 3 — Vent Supplement Vent/air termination — through roof Follow instructions below when determining vent location to avoid possibility of severe personal injury, death or substantial property damage. Figure 1 Vertical termination of air & vent Installation must comply with local requirements and with the National Fuel Gas Code, ANSI Z223.1 for U.S. installations or CSA B149.1 or B149.2 for Canadian installations.
GAS-FIRED WATER BOILER 3 — Vent Supplement Vent/air termination — through roof (continued) Prepare roof penetrations Multiple vent/air terminations 1. Air pipe penetration: a. Cut a hole for the air pipe. Size the air pipe hole as close as desired to the air pipe outside diameter. 2. Vent pipe penetration: a. Cut a hole for the vent pipe. For either combustible or noncombustible construction, size the vent pipe hole at least 0.
GAS-FIRED WATER BOILER 4 — Vent Supplement Vent/air termination — sidewall Follow instructions below when determining vent location to avoid possibility of severe personal injury, death or substantial property damage. Figure 3 Sidewall termination of air & vent: (Apply left illustration unless air termination ell would not provide the minimum 12 inch clearance to grade or snow line.
GAS-FIRED WATER BOILER 4 — Vent Supplement Vent/air termination — sidewall (continued) Determine location (continued) Prepare wall penetrations 6. Locate terminations so they are not likely to be damaged by foreign objects, such as stones or balls, or subject to buildup of leaves or sediment. 7. Do not connect any other appliance to the vent pipe or multiple boilers to a common vent pipe. 1. Air pipe penetration: a. Cut a hole for the air pipe.
GAS-FIRED WATER BOILER 4 — Vent Supplement Vent/air termination — sidewall Termination and fittings Figure 7 Multiple vent/air terminations (must also comply with Figure 4) Figure 8 Multiple vent/air terminations (must also comply with Figure 4) 1. Prepare the vent termination elbow and the air termination elbow (Figure 6) by inserting the bird screens provided with the boiler. Bird screens are provided for either 3-inch (Ultra-80, -105 and -155) or 4-inch (Ultra-230 and -310) fittings. a.
GAS-FIRED WATER BOILER 5 — Vent Supplement Installing vent & air piping Installation must comply with local requirements and with the National Fuel Gas Code, ANSI Z223.1 for U.S. installations or CSA B149.1 or B149.2 for Canadian installations. Inserting/securing vent or air pipe into boiler adapters 1. Clean and chamfer insertion end of pipe. Deburr inside of insertion end. Clean and deburr inside and outside of other end of pipe.
GAS-FIRED WATER BOILER 5 — Vent Supplement Installing vent & air piping Table 2 Min/max lengths of either air piping or vent piping Figure 9 Piping to sidewall terminations (continued) Figure 10 Piping to through-roof terminations When a large number of elbows is needed with 3-inch piping, use long radius elbows to reduce pressure drop. This allows a longer run of piping. See Table 2 notes for details. Do not insulate vent piping.