Assessments - 1, GPA: 4
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clearance for one of the door panels. The heater is design certified by CSA International for installation on combustible flooring. For installation on carpeting, the heater must be mounted on a metal or wood panel that extends at least three inches (10cm) beyond the base of the heater. If the heater is installed in a closet or alcove, the entire floor shall be covered by the panel. On an outdoor shelter installation, the exhaust discharges into a vent pipe. Orient the heater so that the vent pipe does not interfere with adjustment of the operating controls. The control panel located on the top panel can be rotated to any of the three sides of the heater for easy access. However, the control panel must not be located on the side where the vent is located. Table 1: Corrosive Vapors and Possible Causes Area Likely Contaminants Chlorinated swimming pools and spas Pool or spa cleaning chemicals. Acids, such as hydrochloric or muriatic acid New construction and Glues and cements, remodeling areas construction adhesives, paints, varnishes, and paint and varnish strippers. Waxes and cleaners containing calcium or sodium chloride Beauty parlors Permanent wave solutions, bleaches, aerosol cans containing chlorocarbons or fluorocarbons Refrigeration plants or Refrigerants, acids, glues various industrial and cements, construction finishing and processing adhesives plants Dry cleaning and Bleaches, detergents, or laundry areas laundry soaps containing chlorine. Waxes and cleaners containing chlorine, calcium or sodium chloride COMBUSTION AND VENTILATION AIR SUPPLY For shelter installation, the heater requires air supply openings for ventilation and combustion. The minimum requirements are for two (2) openings: one 12 inches (30cm) from the ceiling for ventilation air and one 12 inches (30cm) from the floor for combustion air, in accordance with the latest edition of ANSI Z223.1, or the National Fuel Gas code, the CSA B149.1, Natural Gas and Propane Installation Codes, as applicable, and any local codes that may apply. The minimum net free area in square inches are as follows: Table 2: Combustion and Ventilation Air Requirements Model All Air From Inside Building All Air From Outside Building Combustion Vent Combustion Vent 200 100 sq. in. 645 sq. cm. 100 sq. in. 645 sq. cm. 50 sq. in. 323 sq. cm. 50 sq. in. 323 sq. cm. 250 125 sq. in. 807 sq. cm. 125 sq. in. 807 sq. cm. 63 sq. in. 403 sq. cm. 63 sq. in. 403 sq. cm. 300 150 sq. in. 969 sq. cm. 150 sq. in. 969 sq. cm. 75 sq. in. 485 sq. cm. 75 sq. in. 485 sq. cm. 400 200 sq. in. 1290 sq. cm. 200 sq. in. 1290 sq. cm. 100 sq. in. 645 sq. cm. 100 sq. in. 645 sq. cm. OUTDOOR SHELTER VENT INSTALLATION (Canada) or INDOOR INSTALLATION (U.S.) Always vent the heater to the outdoors. • Vent it horizontally or vertically using a Special Gas Vent, (see Table 4, Page 14), or • Vent it vertically using Type “B” double wall vent connector pipe. Locate the heater so as to minimize the length of horizontal venting and the number of vent elbows required. Horizontal vent runs must slope up 1/4" per foot (2cm/M) from the heater to allow exhaust condensate to drain and must have a condensate drain as described in the venting installation instructions. Combustion Chamber Flue Collar 4" x 8" Metal Flue Collar Vent BodVV y Clean the Interior Surface Vent Pipe Clean and RTV This Surface FIGURE 11: Flue Collar 11 OUTSIDE VENT COVER REMOVAL The heater is supplied from the factory with a built-in stackless outside vent for outdoor installation. Remove the outside vent cover for outdoor shelter installation. VERTICAL VENTING - NEGATIVE PRESSURE (See Figures 11 and 12) Vent the heater vertically in a negative pressure (positive draft) system in accordance with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CSA B149.1, Natural Gas and Propane Installation Codes, and local codes. Type “B” Double-wall vent connector is recommended; however single-wall pipe is allowed by the National Fuel Gas Code in some circumstances. Consult your local code official for detailed information. Do not use a draft hood with this heater. To connect a negative pressure metal gas vent to the heater, order the appropriate Metal Flue Collar from the chart below: Metal Flue Collar Part No. 4x6" 77707-0076 4x8" 77707-0077 1. See Table 3, below, to determine allowable vent sizes for your heater. NOTICE: Table 3 is for installations in which the total lateral vent length (that is, the horizontal distance from the flue collar to the main vertical portion of the vent) is less than 1/2 the total vent height (the vertical distance from the flue collar to the vent termination) and which have three or less elbows in the system. For venting systems which do not meet these conditions, consult the National Fuel Gas Code, ANSI Z223.1 (U.S.), or the standards CSA B149.1 and B149.2 (Canada). 2. Install the metal Flue Collar in the Vent Body of the heater (located under the outside vent cover). Fasten the metal Flue Collar to the Vent...
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