Assessments - 3, GPA: 4.3 ( )

Fabricante : Carrier Arquivo Tamanho: 2.76 mb Arquivo Nome : Língua de Ensino:

. 4 Table 1B — Physical Data (48ZG,ZN055-070) BASE UNIT 48ZG,ZN055 48ZG,ZN060 48ZG,ZN070 NOMINAL CAPACITY (tons) 55 60 70 OPERATING WEIGHT (lb) Base Unit Low Heat High Heat With Economizer Low Heat High Heat Standard Chassis 8700 8820 9230 9350 Extended Chassis 9248 9368 9730 9850 Standard Chassis 9000 9120 9530 9650 Extended Chassis 9,548 9,668 10,030 10,450 Standard Chassis 9,420 9,550 9,950 10,080 COMPRESSORS Quantity...Type Oil Charge (Pints) Capacity Steps (%) CV VAV Number of Refrigerant Circuits Semi-Hermetic 2...06E 2...06E 19, 14 19 60,100 50,100 20,40,60,80,100 17,33,50,67,83,100 2 2 2...06E 19 45,100 14,29,43,51,66,71,85,100 2 REFRIGERANT Operating Charge (lb), Ckt 1/Ckt 2 Standard Evaporator Coil Standard Evaporator with HGBP Alternate High-Capacity Evaporator Coil Alternate High-Capacity Evaporator with HGBP R-22 59.0/44.5 61.0/61.0 62.0/44.5 64.0/61.0 72.0/58.0 69.5/69.5 75.0/58.0 72.5/69.5 70.5/64.5 73.5/64.5 82.5/74.5 85.5/74.5 CONDENSER COILS Quantity Rows...Fins/in. Aluminum Copper (Optional) Total Face Area (sq ft) 3/8-in. Tube Diameter 4 4 2...17.0, 3...17.0 3...17.0 2...15.7, 3...15.7 3...15.7 72.4 72.4 4 3...17.0 3...15.7 108.4 EVAPORATOR COILS Quantity Total Face Area (sq ft) Refrigerant Feed Device...No. per Circuit Standard Evaporator Coils Rows...Fins/in. Fin Type Tube Type Alternate, High-Capacity Evaporator Coils Rows...Fins/in. Fin Type Tube Type 2 61.5 TXV...2 1/2 in. Tube Dia 3...17.0 4...17.0 Double Wavy Double Wavy Smooth Smooth 1/2 in. Tube Dia 6...16 6...16 Double Wavy Double Wavy Cross Hatched Cross Hatched 4...17.0 Double Wavy Smooth 6...16 Double Wavy Cross Hatched HEATING SECTION Number of Heat Exchangers Input (MBtuh) Output (MBtuh) Temperature Rise Range (F) Efficiency (%) Burner Orifice Diameter Quantity (in. ...drill no.) Manifold Pressure (in. wg) Line Pressure (in. wg) (min...max) Firing Stages Number of Gas Valves Low Heat 2 650 527 10-40 81 14 (.1285...30) 3.3 5.0...13.0 2 2 High Heat 3 975 790 20-50 81 21 (.1285...30) 3.3 5.0...13.0 2 3 Low Heat 2 650 527 10-40 81 14 (.1285...30) 3.3 5.0...13.0 2 2 High Heat 3 975 790 20-50 81 21 (.1285...30) 3.3 5.0...13.0 2 3 Low Heat 2 650 527 10-40 81 14 (.1285...30) 3.3 5.0...13.0 2 2 High Heat 3 975 790 20-50 81 21 (.1285...30) 3.3 5.0...13.0 2 3 CONDENSER FANS Quantity...Diameter (in.) Nominal Cfm Motor Hp...Rpm Propeller Type 4...30 4...30 40,000 40,000 1.0...1140 1.0...1140 5...30 50,000 1.0...1140 SUPPLY FAN Nominal Cfm Maximum Allowable Cfm Maximum Allowable Rpm Shaft Diameter at Pulley (in.) Centrifugal 25 x 25 in. 17,500 21,000 25,000 30,000 800 800 111/16 111/16 24,500 30,000 800 111/16 SUPPLY-FAN MOTOR AND DRIVE Motor Hp Motor Frame Size Efficiency at Full Load (%) High Efficiency Premium Efficiency Fan Pulley Pitch Diameter (in.) Motor Pulley Pitch Diameter (in.) Resulting Fan Speed (rpm) Belts Quantity...Type Center Distance Range (in.) (Any motor available on any unit) 15 20 25 254T 256T 284T 91.0 91.0 91.7 93.0 93.6 93.6 13.7 13.7 13.7 4.5 5.1 5.5 575 651 703 2...5VX1230 2...5VX1230 2...5VX1230 48.25-44.00 48.25-44.00 48.50-44.25 30 40 286T S324T 92.4 93.0 93.6 94.5 15.5 16.1 5.9 6.7 711 740 2...5VX1230 3...5VX1250 48.50-44.25 48.25-44.00 OPTIONAL POWER EXHAUST Quantity...Motor Hp Motor Frame Size Efficiency at Full Load (%) High/Premium Resulting Fan Rpm Maximum Allowable Rpm Centrifu2...5 184T 87.5/89.5 740 1000 gal, 15 x 15 in. (Any motor available on any unit) 2...7.5 213T 88.5/91.7 820 1000 2...10 215T 89.5/91.7 920 1000 FILTERS Standard Efficiency Throwaway (Standard) Quantity...Size (in.) Medium Efficiency (30%) Pleated (Optional) Quantity...Size (in.) High Efficiency (90%) Bag Filters with High Velocity Prefilters (Optional) Quantity...Size (in.) Bag Filter Prefilter 12...20 x 25 x 2 12...20 x 20 x 2 12...20 x 25 x 2 12...20 x 20 x 2 6...24 x 24 x 22 6...24 x 20 x 22 6...24 x 24 x 2 6...20 x 24 x 2 12...20 x 25 x 2 12...20 x 20 x 2 12...20 x 25 x 2 12...20 x 20 x 2 6...24 x 24 x 22 6...24 x 20 x 22 6...24 x 24 x 2 6...20 x 24 x 2 12...20 x 25 x 2 12...20 x 20 x 2 12...20 x 25 x 2 12...20 x 20 x 2 6...24 x 24 x 22 6...24 x 20 x 226...24 x 24 x 2 6...20 x 24 x 2 OUTSIDE AIR SCREENS Standard Hood (25%) Quantity...Size (in.) 4...25 x 16 x 1 2...20 x 16 x 1 4...25 x 16 x 1 2...20 x 16 x 1 4...25 x 16 x 1 2...20 x 16 x 1 OPTIONAL ECONOMIZER FILTER Quantity...Size (in.) Aluminum Frame, Permanent12...16 x 25 x 1 2...16 x 20 x 1 12...16 x 25 x 1 2...16 x 20 x 1 12...16 x 25 x 1 2...16 x 20 x 1 LEGEND CV — Constant Volume HGBP — Hot Gas Bypass MBtuh — Btuh in Thousands TXV — Thermostatic Expansion Valve VAV — Variable Air Volume 5 Table 1C — Physical Data (48ZG,ZN075-105) BASE UNIT 48ZG,ZN075 48ZG,ZN090 48ZG,ZN105 NOMINAL CAPACITY (tons) 75 90 105 OPERATING WEIGHT (lb) Base Unit without Economizer Low Heat/High Heat With Economizer Low Heat/High Heat 10,270/10,445 10,800/10,975 10,480/10,655 11,010/11,185 11,210/11,385 11,740/11,915 COMPRESSOR Number Circuit (No. Cyl) Model 06E Oil Charge (pints) Capacity Step...

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