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MODEL NOMENCLATURE <br /> `!II/ 3DINE <br /> Figure 19.1 -Model Number Designations <br /> (Remove access cover to locate) <br /> PTC 215 A S 01 11 SBA N <br /> Separated Combustion T Factory Installed <br /> Unit Configuration N=None <br /> Digit <br /> PTC-Propeller Unit,55-310 MBH <br /> BTC-Blower Unit,215-310 MBH <br /> Future <br /> MBH Input — — A=All <br /> 55- 55,000 Btu/hr input <br /> 65- 65,000 Btu/hr input <br /> 85- 85,000 Btu/hr input <br /> 110-110,000 Btu/hr input <br /> 135-135,000 Btu/hr input Dev Digit <br /> 156-155,000 Btu/hr input <br /> 180-180,000 Btu/hr input <br /> 215-215,000 Btu/hr input — <br /> 260-260,000 Btu/hr input Fanguard Digit <br /> 310-310,000 Btu/hr input N=None(All blower models) <br /> S=Standard <br /> F=Fingerproof <br /> Heat Exchanger Type <br /> A-Aluminized <br /> S-Stainless Steel <br /> Control Code Type <br /> Ignition Type — 11-Natural gas,single stage <br /> S-Direct Spark 21-Propane,single stage <br /> Power Code <br /> (refer to pages 5&7) <br /> — 01-115V/60Hz/1ph <br /> 02-230V/60Hz/1ph <br /> etc. <br /> 6-170.7 19 <br />