Assessments - 4, GPA: 4.3 ( )

Fabricante : Lennox International Inc. Arquivo Tamanho: 2.39 mb Arquivo Nome : Língua de Ensino:

WC (1.12 kPa) 10.5 in. WC (2.61 kPa) Propane 11.0 in. WC (2.74 kPa) 13.0 in. WC (3.23 kPa) Table 2: Inlet Gas Supply Pressure Fuel # Low High Natural Gas 1.6 in. WC (0.40 kPa) 3.5 in. WC (0.87 kPa) Propane 6.3 in. WC (1.57 kPa) 10.0 in. WC (2.49 kPa) Table 3: Manifold Gas Supply Pressure Test gauge connections are provided on the front of the millivolt and electronic gas control valve (identifi ed IN for the inlet and OUT for the manifold side). The control valves have a 3/8 in. (10 mm) NPT thread inlet and outlet side of the valve (refer to Figures 1 and 2). Propane tanks are at pressures that will cause damage to valve components. Verify that the tanks have step down regulators to reduce the pressure to safe levels. The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psi (3.5 kPa). The appliance must be isolated from the gas supply piping system by closing its equipment shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.5 kPa). ORIFICE SIZES—SEA LEVEL TO HIGH ALTITUDE (ALL MODELS) These appliances are tested and approved for installation at elevations of 0–4500 ft (0–1372 m) above sea level using the standard burner orifi ce sizes (marked with an "*" in Table 4). For elevations above 4500 ft, contact your gas supplier or qualifi ed service technician. Deration—At higher elevations, the amount of BTU fuel value delivered must be reduced by either: • Using gas that has been derated by the gas company. • Changing the burner orifi ce to a smaller size as regulated by the local authorities having jurisdiction and by the (USA) National Fuel Gas Code NFPA 54—latest edition / ANSI Z223.1 or, in Canada, the CAN/CGA-B149.1 codes—latest edition. NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE. Install the appliance according to the regulations of the local authorities having jurisdiction and, in the USA, the National Fuel Gas Code NFPA 54—latest edition / ANSI Z223.1 or, in Canada, the CAN/CGA-B149.1— latest edition. Flame breadth, height and width will diminish 4% for every 1,000 feet of altitude. Gas Valve Diagrams. See Figure 1 for millivolt models and Figure 2 For electronic models. In Canada - CAN/CGA-2.17-M91 (R2009) (high altitude): THE CONVERSION SHALL BE CARRIED OUT BY A MANUFACTURER’S AUTHORIZED REPRESENTATIVE, IN ACCORDANCE WITH THE REQUIREMENTS OF THE MANUFACTURER, PROVINCIAL OR TERRITORIAL AUTHORITIES HAVING JURISDICTION AND IN ACCORDANCE WITH THE REQUIREMENTS OF THE CAN/CGA-B149.1 OR CAN/CGA-B149.2 INSTALLATION CODES. REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS These fi replaces are approved for installation in the US state of Massachusetts if the following additional requirements are met: • Install this appliance in accordance with Massachusetts Rules and Regulations 248 C.M.R. • Installation and repair must be done by a plumber or gas...

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