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Manafacture: Lennox Hearth File size: 2.89 mb File name: Language of manual:

The appliance, when installed, must be electrically grounded and wired in accordance with localcodesor,intheabsenceoflocalcodes,with the USA National Electrical Code, ANSI/NFPA 70 (latest edition) or, in Canada, the Canadian Electrical Code, CSA C22.1 (latest edition). Provide adequate clearances around air open ings and adequate accessibility clearance for service and proper operation. Never obstruct the front opening of the appliance. These appliances are designed to operate on natural or propane gas only. The use of other fuels or combination of fuels will degrade the performance of this system and may be dangerous. These fireplaces are designed as supplemental heaters; therefore, it is advisable to have an alternate primary heat source when installed in a dwelling. MILLIVOLT MOdELS: The millivolt appliances are manually controlled and feature a spark igniter (piezo) that allows the appliance's pilot gas to be lit without the use of matches or batteries. This system provides continued service in the event of a power outage. ELECTRONIC MOdELS: The electronic appliances are manually controlled and feature an electronic intermittent pilot ignition system. External electrical power is required to operate these units. ALL MOdELS: Both millivolt and electronic models come standard with a manually- modulated gas valve; flame appearance and heat output can be controlled at the gas valve. BTU input rates for all models are listed in Table 1, below. Input (BTU/hr) Manually-Modulated Gas Valves (all models) Models Input Rate (BTU / HR) Nat. Gas Prop. Gas SLBV-35 17,000 high 13,000 low 17,000 high 14,000 low SLBV-40 22,000 high 17,000 low 20,000 high 15,500 low Table 1 burning appliance. SUPERIORSUPERIORB-VENT GAS FIREPLACES • MODELS SLBV-35, SLBV-40 • INSTALLATION INSTRUCTIONS GAS PRESSURE REqUIREMENTS (All Models) Tables 2 and 3 show the appliances' inlet and manifold gas pressure requirements: Inlet Gas Supply Pressure (All models) fuel # Minimum Maximum Natural Gas 4.5" WC (1.12 kPa) 10.5" WC (2.61 kPa) Propane 11.0" WC (2.74 kPa) 13.0" WC (3.23 kPa) Table 2 Manifold Gas Supply Pressure (All models) fuel # Low High Natural Gas (Lo) 2.2" WC (0.55 kPa) (Hi) 3.5" WC (0.87 kPa) Propane (Lo) 6.3" WC (1.57 kPa) (Hi) 10.0" WC (2.49 kPa) Table 3 Test gauge connections are provided on the front of the gas control valve, identified IN for the inlet and OUT for the manifold side (see 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. These appliances must be isolated from the gas supply piping system (by closing their individual manual shut-off valve) during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa). These appliances and their individual shut-off valves must be disconnected from the gas supply piping system during any pressure testing of that system at pressures grea...

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