valutazioni - 4, GPA: 4.3
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Facilità d'uso
7267627267627275TC183.66166.86151.43194.90177.83162.05201.97SHC79.39100.52121.9191.70119.42147.05102.94kW9.829.639.469.589.769.9610.0485TC172.71156.78142.09183.32167.13152.17189.98SHC69.0390.92112.9580.69109.17137.5191.49kW10.8210.6310.4510.5710.7610.9611.0495TC161.37146.24132.38171.36156.04141.86177.62SHC58.4481.04103.7769.4298.67127.7179.83kW11.9211.7311.5611.6811.8612.0512.14 105TC149.57135.32122.21158.89144.45131.10164.74SHC47.5770.9294.3257.8587.91117.6167.79kW13.1212.9412.7712.8913.0613.2413.32TC137.22123.88111.55145.85132.33119.84151.27SHC36.3160.4784.5745.8776.77107.1955.34TEMP(F)AIRENTCONDENSER(Edb) 375050006250375050006250375080SHC---0.39---0.54---0.67---0.31---0.46---0.58---0.26TC52.4245.8836.9962.6458.0751.0771.56kW9.659.399.079.979.779.5010.25TC53.4546.6336.1063.7759.1151.8772.7675SHC0.590.440.300.670.520.400.72kW9.098.838.499.399.208.949.67TC54.3346.9137.5864.7760.0152.3073.8070SHC1.561.411.291.641.501.381.70kW8.818.538.629.158.948.659.46TC55.4749.4840.4866.6262.0754.8875.6860SHC3.503.383.273.593.473.363.65kW8.368.848.989.889.569.109.83TC58.3351.7242.8168.7263.9355.8477.7450SHC5.475.355.245.545.435.325.60kW8.989.259.439.338.978.739.55TC60.3353.6946.8970.6765.9349.8379.46SHC7.427.317.227.497.397.237.55 LEGEND NOTES: Edb ---Entering Dry---Bulb 1. Direct interpolation is permissible. Do not extrapolate. Ewb ---Entering Wet---Bulb 2. The following formulas may be used: kW - ---Compressor Motor Power Input sensible capacity (Btuh) Idb ---Leaving Dry---Bulb tldb =tedb – 1.10 x cfm Iwb ---Leaving Wet---Bulb tlwb = Wet- ---bulb temperature corresponding to enthalpy of air SHC - ---Sensible Heat Capacity (1000 Btuh) Gross leaving evaporator coil (hlwb) TC - ---Total Capacity (1000 Btuh) Gross total capacity (Btuh) hlwb =hewb – 4.5 x cfm Where: hewb = Enthalpy of air entering evaporator coil 580J 47 Table 32 – STATIC PRESSURE ADDERS (Factory Options and/or Accessories) Economizer 3 ---6 TONS 2750 0.22 Horizontal CFM(in.wg)600 800 1000 1250 1500 1750 2000 2250 2500 VerticalEconomizer0.01 0.02 0.04 0.05 0.07 0.09 0.12 0.15 0.18 0.02 0.03 0.04 0.06 0.08 0.10 0.13 0.15 0.18 0.23 Economizer 7.5 - ---12.5 TONS 4500 0.25 Horizontal CFM(in.wg)2250 2500 2750 3000 3250 3500 3750 4000 4250 VerticalEconomizer0.06 0.08 0.09 0.12 0.13 0.15 0.17 0.20 0.22 0.08 0.10 0.13 0.15 0.18 0.21 0.25 0.28 0.30 0.34 Economizer Perfect Humidity 3---6 TONS 2250 0.252 CFM(in.wg)100012501500175020003Tons0.040.0520.07------ 4Tons---0.1060.1380.1720.215Tons------0.1380.1720.216Tons ---------0.112 0.125 0.161 7.5- ---12.5 TONS CFM(in.wg)22502500275030003250350037504000425045007.5Tons0.120.140.160.190.210.230.26--------- 8.5Tons---0.110.120.130.150.170.180.200.22--- 10Tons---------0.130.150.170.180.200.220.2412.5 Tons ---------------0.17 0.18 0.20 0.22 0.24 General fan performance notes: 1. Interpolation is permissible. Do not extrapolate. 3000 0.26 0.28 5750 6000 0.44 0.48 4750 5000 5250 55000.29 0.33 0.36 0.40 0.39 0.43 0.47 0.51 0.56 0.60 2750 3000 2500--- --- 0.300.19 0.22 0.25 4750 500052505500--------- --------- 0.28------ 5750 6000 0.26 -----0.26 0.28 0.31 0.33 0.36 0.39 580J 2. External static pressure is the static pressure difference between the return duct and the supply duct plus the static pressure caused by any FIOPs or accessories. 3. Tabular data accounts for pressure loss due to clean filters, unit casing, and wet coils. Factory options and accessories may add static pressure losses, as shown in the tables above. Selection software is available, through your salesperson, to help you select the best motor/drive combination for your application. 4. The Fan Performance tables offer motor/drive recommendations. In cases when two motor/drive combinations would work, Bryant recommended the lower horsepower option. 5. For information on the electrical properties of Bryant motors, please see the Electrical information section of this book. 6. For more information on the performance limits of Bryant motors, see the application data section of this book. 7. The EPACT (Energy Policy Act of 1992) regulates energy requirements for specific types of indoor fan motors. Motors regulated by EPACT include any general purpose, T- --frame (three- --digit, 143 and larger), single- --speed, foot mounted, polyphase, squirrel cage induction motors of NEMA (National Electrical Manufacturers Association) design A and B, manufactured for use in the United States. Ranging from 1 to 200 Hp, these continuous- --duty motors operate on 230 and 460 volt, 60 Hz power. If a motor does not fit into these specifications, the motor does not have to be replaced by an EPACT compliant energy efficient motor. Variable speed motors are exempt from EPACT compliance requirements. Therefore, the indoor fan motors for Bryant 580J04- --14 units are exempt from these requirements. 48 FAN PERFORMANCE Table 33 – 580J*04 1 PHASE 3 TON HORIZONTAL SUPPLY CFM RPM BHP FieldSuppliedDrive1 900 553 0.14 975 575 0.16 1050 597 0.18 1125 620 0.21 1200 643 0.23 1275 667 0.27 1350 69...