York 251934-YTG-J-0910 Technical Manual

Contents

251934-YTG-J-0910Johnson Controls Unitary Products 69Sound PerformanceElectric Heat MultipliersVoltage kW Capacity Multipliers 11. Electric heaters are rated at nominal voltage. Use this table to determine the electric heat capacity forheaters applied at lower voltages.Nominal Applied240 208 0.75230 0.92480 460 0.92600 575 0.92ZJ/ZR/ZF Indoor Sound Power LevelsSize(Tons) CFM ESP(IWG)Blower Sound Power, dB (10-12 ) WattsSound Rating1dB (A)Octave Band Centerline Frequency (Hz)RPM BHP 63 125 250 500 1000 2000 4000 8000180 (15) 6000 1.0 1,080 4.6 91 88 90 90 87 85 81 81 76210 (17.5) 7000 1.0 940 5.1 85 84 84 82 81 81 77 74 69240 (20) 8000 1.0 1,020 6.6 86 85 85 83 82 82 78 75 70300 (25) 10000 1.3 1,160 12.5 92 91 91 89 88 88 84 81 761. These values have been accessed using a model of sound propagation from a point source into the hemispheric/free field. The dBA valuesprovided are to be used for reference only. Calculation of dBA values cover matters of system design and the fan manufacturer has no wayof knowing the details of each system. This constitutes an exception to any specification or guarantee requiring a dBA value of sound datain any other form than sound power level ratings.ZJ/ZR/ZF Outdoor Sound Power LevelsSize(Tons)Sound Rating1dB (A)Sound Power, dB (10-12 ) WattsOctave Band Centerline Frequency (Hz)63 125 250 500 1000 2000 4000 8000180 (15) 92 90 93 91 89 86 83 80 75210 (17.5) 92 91 94 92 89 86 83 81 76240 (20) 92 91 94 92 89 87 83 81 76300 (25) 92 92 95 93 89 87 84 81 771. Rated in accordance with ARI 270 standard.