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Resumen del manual
The heater may be installed unvented in certain circumstances according to building ventilation codes. Refer to the above codes and Page 11, Section 6.4 for further information. Unvented operation also requires compliance with the clearances to combustibles given on Page 3, Figure 1. The bottom of the vent or air intake terminal shall not be located less than 1' (.3 m) above grade level. The vent shall not terminate less than 7' (2.1 m) above grade where located adjacent to public walkways. Vent terminal must be installed at a height sufficient to prevent blockage by snow and building materials protected from degradation by flue gasses. Vent terminal must be beyond any combustible overhang. Secure all joints with corrosion resistant #8 x 3/8" sheet metal screws. For single wall venting, pressure sensitive aluminum tape or silicone sealant must be used to seal all joints. Aluminum tape shall have a minimum temperature rating of 400° F (204° C) and meet SMACNA AFTS100- 73 standards. High temperature silicone sealant must have a minimum temperature rating of 480° F (250° C). 6.2.1 United States Requirements Vent must terminate at least 3' (.9 m) above any forced air inlet located within 10' (3.1 m). Vent must terminate at least 4' (1.2 m) below, 4' (1.2 m) horizontally from, or 1' (.3 m) above any door, operable window, or gravity air inlet into any building. NFPA 54/ANSI Z223.1 - latest revision, National Fuel Gas Code specifies a 4' (1.2 m) horizontal vent terminal clearance from gas and electric meters, regulators and relief equipment. 6.2.2 Canadian Requirements The vent shall not terminate within 6' (1.8 m) of a mechanical air supply inlet to any building. The vent shall not terminate within 3' (.9 m) of a window or door that can be opened in any building, any non-mechanical air supply inlet to any building, or of the combustion air inlet of any other appliance. 6.3 Vent Installation Maintain clearances to combustibles at all times for safety. Clearances are the required distances that combustible objects must be away from the heater to prevent serious fire hazard. See Page 3, Figure 3.5. For vented units, the vent must terminate outside of the building. Vents must be fully sealed and correctly sized for the model. If the vent passes through a wall or ceiling of combustible material, it must be enclosed by a listed thimble and be separated from the thimble by at least a 2" (5 cm) air gap. For separated combustion models, vents and air intakes must be a fully sealed system and correctly sized for the model. Vent should be assembled as detailed on Page 13, Figure 6 through Page 16, Figure 11. The joints between the vent terminal and the roof or wall must be properly sealed. If the vent passes through a wall or ceiling of combustible material, it must be enclosed by a listed thimble and be separated from the thimble by at least a 2" (5 cm) air gap. SECTION 6: VENTING Vents and air intakes must be adequately supported so that the heater does not bear the weight of the pipes. For vent termination See Page 13, Figure 6 through Page 16, Figure 11. 6.3.1 Standard Vented Heaters (Models UHD[X][R] 75 - 125) The vent must be fitted with a low resistance terminal. See Page 13, Figure 6 through Page 13, Figure 7. Standard vented heaters do not allow outdoor air intake for combustion air. 6.3.2 Separated Combustion Heaters (Models UHD[X]S[R] 75 - 125) The heaters are designed to be installed as separated combustion heaters. The vent and air intake are run as separate pipes to the wall or roof terminals. See Page 15, Figure 9. As an option, the vent and air intake are run as separate pipes to a concentric vent box and a concentric vent/air intake pipe penetrates the wall or roof. See Page 15, Figure 10 and See Page 16, Figure 11. For separated combustion installation, the vent and air intake must be fitted with an individual and correctly sized sealed system and the vent and air intake must terminate at approved wall and roof terminals. Separated combustion units may not be common vented. See Page 10, Section 6. 6.4 Unvented Operation WARNING Carbon Monoxide Hazard Heaters may be installed vented or unvented. Vented heaters must be vented outdoors. Unvented heaters must be installed in buildings with ventilation rates as per section 6.4. Failure to follow these instructions can result in death or injury. This heater is not approved to be installed in residential buildings. For unvented operation in commercial installations, sufficient building ventilation must be provided in the amount of 4 cfm per 1000 Btu/h firing rate (United States); 3 cfm per 1000 Btu/h firing rate (Canada). WARNING: Combustion by-products contain a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. 6.5 Horizontal Venting Horizontally vented heaters must be individually vented. Vent pipe must be sloped ." (.6 cm) downward for every 1' (.3 m). For vent lengths greater than 5' (1.5 m), condensation...
Otros modelos de este manual:Eléctrico - Combat UHD[X][S][R] 75 (2.2 mb)
Eléctrico - UHD[X][S][R] 125 (2.2 mb)