Trane Precedent PKGP-PRC003-EN User Manual

Packaged heat pumps 3-10 tons - 60 hz

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Packaged Heat Pumps
Precedent™
3-10 T ons - 60 Hz
PKGP-PRC003-EN
September 2004

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Summary of Contents for Trane Precedent PKGP-PRC003-EN

  • Page 1 Packaged Heat Pumps Precedent™ 3-10 T ons - 60 Hz PKGP-PRC003-EN September 2004...
  • Page 2: Introduction

    Packaged Rooftop products available in stringent performance requirements, the market today. Trane was the first to and are competitively priced. Trane introduce the Micro—microelectronic unit delivers with Precedent. controls—and has continued to improve Precedent features cutting edge and revolutionalize this design concept.
  • Page 3: Table Of Contents

    Contents Introduction Features and Benefits Application Considerations Selection Procedure Model Number Description General Data Performance Data Cooling Performance Fan Performance Heat Performance Controls Electric Power Dimension and Weights Mechanical Specifications PKGP-PRC003-EN...
  • Page 4: Features And Benefits

    • Differential Pressure Switches • Discharge Air Sensing Kit • Economizer • Electric Heaters • Frostat • ® LonTalk Communications Interface • Oversized Motors • Reference or Comparative Enthalpy • Tool-less Hail Guards • Trane Communications Interface (TCI) • PKGP-PRC003-EN...
  • Page 5 (dirty filters for conscious when it comes to service and example). ReliaTel Makes Installing and maintenance, the Trane Precedent was Servicing Easy Other ReliaTel Benefits designed with direct input from service ReliaTel eliminates the need for field The ReliaTel built-in anti-shortcycle timer, contractors.
  • Page 6 Features and Benefits Outstanding Standard and Compressors Digital Display Zone Sensor Precedent contains the best compressor The Digital LCD (Liquid Crystal Display) Optional Components technology available to achieve the zone sensor has the look and functionality highest possible performance. Our of standard zone sensors.
  • Page 7 This option is available to maintain proper building pressurization. Great for relieving Trane Communication Interface (TCI) most building overpressurization Available factory or field installed. This problems. module when applied with the ReliaTel™ easily interfaces with Trane’s Integrated Comfort System. PKGP-PRC003-EN...
  • Page 8 Every unit receives a 100% unit run test comfort management systems and can before leaving the production line to allow thermostat control in every zone make sure it lives up to rigorous Trane served by VariTrac. requirements. VariTrac™ PKGP-PRC003-EN...
  • Page 9 Features and Benefits Easy to Install Low Voltage Connections Single Point Power The wiring of the low voltage connections A single electrical connection powers the Convertible Units to the unit and the zone sensors is as unit. – The units ship in a downflow simple as 1-1, 2-2, and 3-3.
  • Page 10 Convenience Outlet Unit Mounted Disconnect One of our Finest Assets: or Circuit Breaker Trane Sales Representatives are a Factory Installed Options Support Group that can assist you with: A wide variety of Factory Installed — Product Options (FIOPs) are available.
  • Page 11: Application Considerations

    Actual clearances which conjunction with economizer option. This appear inadequate should be reviewed accessory consists of gravity dampers with the local Trane sales personnel. which open with increased pressure. As the building air pressure increases, the Unit Pitch pressure in the unit return air section...
  • Page 12: Selection Procedure

    Calculate the building heating load using fan motor heat must be deducted from cooling loads at design conditions. Use the Trane calculation form or other the gross cooling capacity. The amount of the Trane calculation methods or any standard accepted method.
  • Page 13: Model Number Description

    Barometric Relief E = Economizer, Reference Enthalpy 0 = No Communications Interface C = Convertible 0-100% without Barometric Relief 1 = Trane Communications F = Economizer, Reference Enthalpy Interface DIGITS 4,5,6 - Nominal Gross Cooling 0-100% with Barometric Relief 2 = LonTalk® Communications...
  • Page 14: General Data

    General (3, 4 Ton) Data Table GD-1 — General Data 3 Ton Convertible Units 4 Ton Convertible Units WSC036A1 WSC036A3,A4,AW WSC048A1 WSC048A3,A4,AW Cooling Performance Gross Cooling Capacity 38,100 38,100 50,800 50,800 SEER 9.80 10.20 10.50 10.70 Nominal CFM / ARI Rated CFM 1,200 / 1,200 1,200 / 1,200 1,600 / 1,600...
  • Page 15 General Data (5, 6 Ton) Table GD-2 — General Data 5 Ton Convertible Units 6 Ton Convertible Units WSC060A1 WSC060A3,A4,AW WSC072A3,A4,AW Cooling Performance Gross Cooling Capacity 63,100 63,100 74,000 EER/SEER — /9.70 — /10.10 10.6/ — Nominal CFM / ARI Rated CFM 2,000/2,000 2,000/2,0000 2,400/2,100...
  • Page 16 General Data (7½, 10 Ton) Table GD-3 — General Data 7½ Ton Convertible Units 10 Ton Convertible Units WSC090A3, A4, AW WSC120A3, A4, AW Cooling Performance Gross Cooling Capacity 93,000 121,000 10.1 10.1 Nominal CFM / ARI Rated CFM 3,000/2,625 4,000/3,200 ARI Net Cooling Capacity 88,000...
  • Page 17: Performance Data

    Performance Data (3, 4 Ton) Table PD-1 — Gross Cooling Capacities (MBH) 3 Ton Single/Three Phase WSC036A1, A3, A4, AW Ambient Temperature (F) 1 15 Enter. Entering Wet Bulb (F) Bulb Airflow MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC 34.7 28.9 39.7 22.6 42.4 15.3 31.6 27 .3 37 .1 21.4 41.0 14.4 28.5 25.6 33.8 19.8 39.0 13.3 25.3 24.0 30.2 18.2 36.1 12.0 35.4 34.8 39.8 28.1 42.9 21.0 32.5 32.5 37 .2 26.8 41.3 20.0 29.9 29.9 33.9 25.2 39.1 18.9 27 .4 27 .4 30.4 23.6 36.2 17 .6 1080...
  • Page 18 Performance (5, 6 Ton) Data Table PD-3 — Gross Cooling Capacities (MBh) 5 Ton Three Phase WSC060A1,A3, A4, AW Ambient Temperature (F) Enter. Entering Wet Bulb (F) Bulb Airflow MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC 56.7 48.0 64.9 37 .3 68.9 25.0 52.5 45.7 61.6 35.5 67 .6 23.9 48.1 43.4 56.8 33.2 65.2 22.5 43.5 41.0 51.4 31.6 60.9 20.6 58.3 58.1 65.1 46.5 69.6 34.5 54.4 54.4 61.7 44.9 68.1 33.3 50.8 50.8 57 .0 42.5 65.4 31.8 46.9 46.9 51.7 40.0 61.0 29.8 1800...
  • Page 19 Performance Data (7½, 10 Ton) Table PD-5 — Gross Cooling Capacities (MBh) 7½ Ton Three Phase WSC090A3, A4, AW Ambient Temperature (F) 1 15 Enter. Entering Wet Bulb (F) Bulb Airflow MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC 84.9 72.7 94.8 55.6 98.6 36.8 78.6 69.6 91.0 53.9 97 .7 35.7 72.1 66.4 84.4 51.0 95.3 34.2 65.3 63.2 76.7 47 .8 90.8 32.4 86.9 86.9 95.1 68.8 99.8 50.9 81.9 81.9 91.4 67 .7 98.8 50.2 76.6 76.6 85.0 64.9 95.8 48.2 70.9 70.9 77 .4 61.7 90.9 46.3 2700...
  • Page 20: Fan Performance

    Performance (3, 4, 5 Ton) Data Table PD-7 — Direct Drive Evaporator Fan Performance — 3, 4 And 5 Ton WSC036A, WSC048A, WSC060A External Static Pressure (Inches of Water) & Motor Power (Bhp) Standard Motor Oversized Motor Unit High Speed Low Speed High Speed Low Speed...
  • Page 21 Performance Data (3 Ton) Table PD-8 — Belt Drive Evaporator Fan Performance — 3 Ton — WSC036A3,A4,AW — Downflow Airflow External Static Pressure (Inches of Water) 1.00 1-HP Standard Motor & Field Supplied Low Static Drive (1) 1-HP Standard Motor & Drive —...
  • Page 22 Performance Data (4 Ton) Table PD-10— Belt Drive Evaporator Fan Performance — 4 Ton — WSC048A3,A4,AW — Downflow Airflow External Static Pressure (Inches of Water) 1.00 1-HP Standard Motor & Field Supplied 1-HP Standard Motor & Drive Low Static Drive (1) 1280 —...
  • Page 23 Performance Data (5 Ton) Table PD-12 — Belt Drive Evaporator Fan Performance — 5 Ton — WSC060A3,A4,AW — Downflow Airflow External Static Pressure (Inches of Water) 1.00 1-HP Standard Motor & Field Supplied Low Static Drive (1) 1-HP Standard Motor & Drive 1600 —...
  • Page 24 Performance Data (6 Ton) Table PD-14— Belt Drive Evaporator Fan Performance — 6 Ton — WSC072A3,A4,AW* — Downflow Airflow External Static Pressure (Inches of Water) 1.00 1-HP Standard Motor & Field Supplied Low Static Drive (1) 1-HP Standard Motor & Drive 1920 —...
  • Page 25 Performance Data (7½ Ton) Table PD-16— Belt Drive Evaporator Fan Performance — 7½-Ton — WSC090,092A3,A4,AW — Downflow Airflow External Static Pressure (Inches of Water) 1.00 1-HP Standard Motor & Field Supplied Low Static Drive (1) 1-HP Standard Motor & Drive 2400 —...
  • Page 26 Performance Data (10 Ton) Table PD-18 — Belt Drive Evaporator Fan Performance — 10-Ton — WSC120A3,A4,AW — Downflow Airflow External Static Pressure (Inches of Water) 1.00 2-HP Standard Motor & Field Supplied Low Static Drive (1) 3200 0.53 0.63 0.74 0.85 0.97 1.10...
  • Page 27: Performance Data

    Performance Data Table PD-20— Standard Motor & Sheave/Fan Speed (Rpm) Unit 6 Turns 5 Turns 4 Turns 3 Turns 2 Turns 1 Turn T ons Model No. Open Open Open Open Open Open Closed WSC036A 1043 1117 WSC048A 1000 1083 1167 1250 WSC060A...
  • Page 28 Performance Data Table PD-23— Static Pressure Drops Through Accessories (Inches Water Column) Economizer with Electric Heater Unit Standard Standard OA/RA Dampers Accessory (KW) Tons Model No. Filters Pleated Filters 100% OA 100% RA 100%OA 100%RA 9-15 17-36 Downflow Horizontal 0.04 0.06 0.05 0.01...
  • Page 29: Heat Performance

    Performance Data (3 Ton) Table PD-26 — 3 Ton Single Phase Heating Capacities (Net) WSC036A1 At 1200 CFM Outdoor Instantaneous Heating Capacity (Btuh/1000) Integrated Heating Capacity (Btuh/1000) Total Power in Kilowatts at Temp at Indicated Indoor Dry Bulb Temp. at Indicated Indoor Dry Bulb Temp. Indicated Indoor Dry Bulb Temp.
  • Page 30 Performance Data (4 Ton) Table PD-28 — 4Ton Three Phase Heating Capacities (Net) WSC048A1 At 1600 CFM Outdoor Instantaneous Heating Capacity (Btuh/1000) Integrated Heating Capacity (Btuh/1000) Total Power in Kilowatts at Temp. at Indicated Indoor Dry Bulb Temp. at Indicated Indoor Dry Bulb Temp. Indicated Indoor Dry Bulb Temp.
  • Page 31 Performance Data (5 Ton) Table PD-30 — 5 Ton Single Phase Heating Capacities (Net) WSC60A1 At 2000 CFM Outdoor Instantaneous Heating Capacity (Btuh/1000) Integrated Heating Capacity (Btuh/1000) Total Power in Kilowatts at Temp. at Indicated Indoor Dry Bulb Temp. at Indicated Indoor Dry Bulb Temp. Indicated Indoor Dry Bulb Temp.
  • Page 32 Performance Data (6 Ton) Table PD-32 — 6 Ton Heating Capacities (Net) WSC72A At 2400 CFM Downflow Configuration Outdoor Integrated Heating Capacity (Btuh/1000) Total Power in Kilowatts at Temp. at Indicated Indoor Dry Bulb Temp. Indicated Indoor Dry Bulb Temp. 23.9 23.4 23.2...
  • Page 33 Performance Data (7½ Ton) Table PD-34 — 7½ Ton Heating Capacities (Net) WSC090A At 3000 CFM Downflow Configuration Outdoor Integrated Heating Capacity (Btuh/1000) Total Power in Kilowatts at Temp. at Indicated Indoor Dry Bulb Temp. Indicated Indoor Dry Bulb Temp. 33.3 31.8 31.2...
  • Page 34 Performance Data (10 Ton) Table PD-36— 10 Ton Heating Capacities (Net) WSC120A At 4000 CFM Downflow Configuration Outdoor Inagrated Heating Capacity (Btuh/1000) Total Power in Kilowatts at Temp. at Indicated Indoor Dry Bulb Temp. Indicated Indoor Dry Bulb Temp. 39.6 39.4 39.4 39.5...
  • Page 35 Performance Data Table PD-38 — Auxiliary Electric Heat Capacity Total Stage 1 Stage 2 Unit No. of Tons Model No. Input Output Stages Input Output Input Output 5.00 17.07 5.00 17.07 — — WSC036A1 10.00 34.14 5.00 17.07 5.00 17.07 13.80 47.11 8.80...
  • Page 36 Performance Data Table PD-40 — Air Temperature Rise Across Electric Heaters (Degree F) 3 Ton 4 Ton 5 Ton 1200 CFM 1600 CFM 2000 CFM Single Phase Three Phase Single Phase Three Phase Single Phase Three Phase Stages WSC036A11 WSC036A3,A4,AW WSC048A1 WSC048A3,A4,AW WSC060A1...
  • Page 37: Controls

    Keyboard selection of occupant’s comfort control devices for buttons to provide Precedent™ units with the Micro control: central control through a Trane Integrated Manual Changeover Comfort system. Heat, Cool or Off System Switch. Fan Auto or Off Switch.
  • Page 38: Electric Power

    Electrical Data Table ED-1 — Unit Wiring Standard Indoor Fan Motor Oversize Indoor Fan Motor Optional Belt Drive Indoor Fan Motor Unit Minimum Maximum Fuse Minimum Maximum Fuse Minimum Maximum Fuse Unit Operating Circuit Size or Maximum Circuit Size or Maximum Circuit Size or Maximum T ons...
  • Page 39 Electrical Data Table ED-2 — Unit Wiring With Electric Heat (Single Point Connection) — 208/230 Volts Single and Three Phase Standard Indoor Motor Oversize Indoor Motor To Use Heater Heater Control Max Fuse Size or Max Fuse Size or Tons With Model No.
  • Page 40 Electrical Data Table ED-3 — Unit Wiring With Electric Heat (Single Point Connection) — 460 Volts Three Phase Standard Indoor Motor Oversize Indoor Motor To Use Heater Heater Control Max Fuse Size or Max Fuse Size or Tons With Model No. KW Rating Stages Max Circuit Breaker...
  • Page 41 Electrical Data Table ED-4— Unit Wiring With Electric Heat (Single Point Connection) — Optional Belt Drive Indoor Motor Optional Belt Drive Indoor Motor To Use Heater Heater Control Max Fuse Size or Tons With Model No. KW Rating Stages Max Circuit Breaker 208/230 Volts Three Phase BAYHTRR306A 4.5/6.0...
  • Page 42 Electrical Data Table ED-5 — Electrical Characteristics — Evaporator Fan Motors — 60 Cycle — Standard and Oversized Evaporator Fan Motor Standard Evaporator Fan Motor Oversized Evaporator Fan Motor Amps Amps Unit Tons Model No. Volts Phase Volts Phase WSC036A1 208-230 208-230 WSC036A3...
  • Page 43 Electrical Data Table ED-7 — Electrical Characteristics — Compressor Motor And Condenser Motor — 60 Cycle Compressor Motor Condenser Fan Motor Unit AMPS AMPS Tons Model No. Volts Phase Phase WSC036A1 208-230 3450 17.5 104.0 WSC036A3 208-230 3450 11.8 74.0 WSC036A4 3450 37.6...
  • Page 44: Jobsite Connections

    Jobsite Connections Zone Sensors —Typical Number Of Wires DISCONNECT SWITCH A— Manual Changeover ........6 (BY OTHERS) Manual/Auto Changeover ....... 7 Manual/Auto Changeover with ZONE SENSOR ROOFTOP Status Indication LED’s ......10 UNIT Programmable Night Setback with Status Indication LED’s ......7 B—...
  • Page 45: Dimension And Weights

    Dimensional Data (3-5 Tons) All dimensions are in inches/millimeters. 32 1/4" 819 MM 4 1/4" 108 MM 23 9/16" 598 MM 42 1/4" 69 7/8" 1073 MM 1775 MM 5 9/16" 141 MM 5 5/8" 7 5/8" 143 MM 194 MM 9 5/8"...
  • Page 46 Dimensional Data (3-5 Tons) All dimensions are in inches/millimeters. 3-5 TonsDownflow Duct Connections — Field Fabricated 3-5 Tons Downflow Airflow Supply/Return; Through the Base Utilities 3-5 Tons Horizontal Airflow Supply/Return PKGP-PRC003-EN...
  • Page 47 Dimensional Data (6-10 Tons) All dimensions are in inches. 6 and 7½ Tons — WSC072A and WSC090A 10 Tons —WSC120A PKGP-PRC003-EN...
  • Page 48 Dimensional Data (6-10 Tons) All dimensions are in inches. 6-10 Tons — Downflow Airflow Supply and Return; Through the Base Utilities 6-10 Tons — Horizontal Airflow Supply and Return Return Supply 6-10 Tons — Unit Clearance and Roof Opening PKGP-PRC003-EN...
  • Page 49 Dimensional Data (6-10 Tons) All dimensions are in inches. 6-10 Tons — Roof Curb ALL FLANGES 1 1/4” (31 MM) 6-10 Tons — Downflow Duct Connections — Field Fabricated PKGP-PRC003-EN...
  • Page 50: Dimensional Data

    Dimensional (3-5 Ton) Options/ Data Accessories All dimensions are in inches. 3-5 Tons Economizer, Manual, or Motorized 3-5 Tons Barometric Relief Damper Fresh Air Damper 17 7/8" 16" 22 1/4" (454 MM) (406 MM) (565 MM) 3-5 Tons Swing Diameter for Hinged Doors Option See Page 46 for Through the Base Utilities Information PKGP-PRC003-EN...
  • Page 51 Dimensional (6-10 Tons Options/ Data Accessories) All dimensions are in inches. 6-10 Tons — Economizer and Barometric 6-10 Tons — Power Exhaust Relief Damper Hoods 17" 432 MM 21 3/8" 34 5/8" 543 MM 879 MM 6-10 Tons — Swing Diameter for Hinged Door(s) Option See Page 48 for Through the Base Utilities Information PKGP-PRC003-EN...
  • Page 52 Weights Table W- 1 — Maximum Unit Weights, Corner Weights (Lbs) And Center Of Gravity Dimensions (In.) Unit Maximum Weights (Lbs) Corner Weights (Lbs) Center of Gravity (In.) Tons Model No. Shipping Length Width WSC036A WSC048A WSC060A WSC072A 7½ WSC090A WSC120A 1084 Note:...
  • Page 53: Mechanical Specifications

    Mechanical Specifications General Unit T op Evaporator and Condenser Coils The units shall be convertible airflow. The The top cover shall be one piece Internally finned, 5/16” copper tubes operating range shall be between 115°F construction or where seams exist, it mechanically bonded to a configured and 0°F in cooling as standard from the shall be double-hemmed and gasket-...
  • Page 54 Mechanical Specifications Factory Installed Options Through the Base Electrical Access Differential Pressure Switches An electrical service entrance shall be These sensors allow individual fan failure Black Epoxy Pre-Coated Coils provided allowing electrical access for and dirty filter indication for The black epoxy coils have a thermoset both control and main power connections microprocessor controlled units.
  • Page 55 This option shall be provided to interface Zone Sensor position when indoor fan starts. The ReliaTel™ controlled units with the Trane This control shall be provided to interface damper shall close to the full closed Integrated Comfort systems.
  • Page 56 A business of American Standard Companies www.trane.com For more information contact your local dealer (distributor), local district office, or e-mail us at Trane has a policy of continuous product and product data improvement and reserves the right to change design comfort@trane.com and specifications without notice.

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