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Packaged Heat Pumps
™
Precedent
WSC060-120
50 Hz
PKGP-PRC004-EN
February 2004
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Introduction ™ Precedent …The same Trane With its sleek compact cabinet, rounded quality…with added flexibility. corners and beveled top, it may just be Precedent is a flexible line of packaged the most aesthetically pleasing packaged units that cover a wide variety of unit on the planet. And, of course, applications. Precedent carries the Trane reputation for excellence, quality and reliability. It’s ™ ReliaTel microprocessor controls hard to stop a Trane. provide superior flexibility for the s
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Contents Introduction 2 Features and Benefits 4 Application Considerations 9 Selection Procedure 10 Model Number Description 12 General Data 13 Performance Data 14 Controls 34 Electrical Data 35 Jobsite Connections 38 Dimensional Data 39 Weights 46 Mechanical Specifications 47 PKGP-PRC004-EN 3
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Features and Benefits Easy-Adjust Idler Arm With the Easy-Adjust Idler Arm, the belt and sheaves can be quickly adjusted without moving the mounted fan motor. The result is a major savings in time and money. Patented Condenser Coil Precedent boasts a patented 1+1+1 Hybrid coil, permanently gapped for Unit Cabinet The compact cabinet with rounded easy cleaning. corners takes up less room and is less costly to ship. The beveled and ribbed top is not only aesthetically pleasing, it is Colored And N
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Features and Benefits Standardized Components Flexible Applications Components are placed in the same Only two roof curbs for the 5-10 ton ™ location on all Precedent units. Precedent line…simplifies curb Familiarize yourself with one Precedent selection. and you are familiar with every Airflow is outstanding. The Precedent Precedent. can replace an older machine with old ductwork and, in many cases, improve comfort through better air distribution. Belt drive — standard or oversized supp
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Features and Benefits Eliminates the need for field-installed components with its built-in anti- short-cycle timer, time delay relay and minimum ‘’on’’ time controls. These controls are factory tested to assure proper operation. Requires no special tools to run the Precedent unit through its paces during testing. Simply place a jumper between Test 1 and Test 2 terminals on the Low Voltage Micro Controls Terminal Board and the unit will walk Several years ago, Trane was the first to through i
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Features and Benefits The following options round-out the Factory-installed Options ™ complete line of Precedent options: Hinged Access Doors These doors permit easy access to the — 0 - 50% Manual or Motorized filter, fan/heat, and compressor/control Outside Air sections. They reduce the potential roof — Discharge Air Sensor damage from screws or sharp access door corners. — Electric heaters (available as field- installed accessories) Economizer Equipped with either dry bulb, reference — Hail Pr
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Features and Benefits Quality And Reliability Testing We perform a 100% coil leak test at the factory. The evaporator and condenser ™ All Precedent designs were rigorously coils are leak tested at 1,375 kPa (200 rain tested at the factory to ensure psig) and pressure tested to 3,100 kPa water integrity. (450 psig). Actual shipping tests were performed All parts are inspected at the point of to determine packaging requirements. final assembly. Sub-standard parts are Units were test shippe
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Application Considerations Application of this product should be Condensate Trap within the cataloged airflow and cooling The evaporator is a draw-thru considerations. configuration. A trap must be field provided prior to start-up on the cooling Low Ambient Cooling cycle. Precedent™ features, as standard, low ambient cooling down to -18°C (0°F). Clearance Requirements Contact your local Trane Representative The recommended clearances identified for more assistance with low ambient with unit dime
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Selection Procedure - SI Units Heating Capacity Cooling Capacity Table PD-1 shows that a WSC060AD has a gross cooling capacity of 18.1 kW and Step 1 Step 1 14.7 kW sensible capacity at 35 degree C Calculate the building heating load using Calculate the building’s total and 3 /hr with 27 DB/19 ambient and 3,400 m the Trane calculation form or other sensible cooling loads at design WB air entering the evaporator. standard accepted method. conditions. Use the Trane calculation To find the net cooli
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Selection Procedure - IP Units Cooling Capacity Table PD-1a shows that a WSC060AD Heating Capacity has a gross cooling capacity of 59.0 MBh Step 1 Step 1 and 45.7 MBh sensible capacity at 95 Calculate the building heating load using Calculate the building’s total and degree ambient and 2,000 cfm with 80 the Trane calculation form or other sensible cooling loads at design DB/67 WB air entering the evaporator. standard accepted method. conditions. Use the Trane calculation To find the net cooling
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Model Number Description W S C 060 A D R O A ** C 0 0 0 0 0 0 0 0 0 0 1 1 2 34,5,67 8 9 10 1112,1314 15 1617 18 19 2021 22 23 24 25 Digit 1 - Unit Function Digits 12,13 - Service Sequence Digit18 - Through the Base Provisions W = Packaged Heat Pump ** = Factory Assigned 0 = No Through the Base Provisions Digit 2 - Efficiency Digit 14 - Fresh Air Selection Digit 19 - Disconnect/Circuit Breaker/Phase Monitor (3 phase only) S = Standard Efficiency 0 = No Fresh Air A = Manual Outside Air Damper 0-50
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General Data Table GD-1 - General Data Convertible Units Convertible Units Convertible Units Convertible Units WSC060AD,T WSC072AD,T WSC090AD,T WSC120AD,T 1 Cooling Performance Gross Capacity - kW (MBh) 17.3 (59.0) 22.6 (77.0) 27.8 (95.0) 34.6 (118.0) 2 COP (EER) 2.72 (9.3) 3.31 (11.3) 3.20 (10.9) 3.28 (10.1) 3 Nominal Airflow - m /h (cfm) 3400 (2000) 4080 (2400) 5100 (3000) 6800 (4000) 3 Rated Airflow - m /h (cfm) 3400 (2000) 3570 (2100) 4460 (2625) 5950 (3500) Net Capacity - kW (MBh) 16.7 (57
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Performance Data Table PD-1 — Gross Cooling Capacities (kW) WSC060AD,T (SI) Enter. Ambient Temperature (C) Dry 30 35 40 45 Bulb Entering Wet Bulb Temperature (C) 3 m /h Temp 16 19 22 16 19 22 16 19 22 16 19 22 Airflow (C) TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC 3060 24 14.5 13.2 16.6 10.7 18.3 7.6 15.6 13.8 17.7 11.0 19.0 8.0 13.3 12.6 15.3 10.1 17.4 7.2 12.1 12.0 13.9 9.5 16.3 6.6 27 15.3 15.3 16.7 13.4 18.4 10.4 16.3 16.3 17.8 13.9 19.1 1
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Performance Data Table PD-2 — Gross Cooling Capacities (kW) WSC072AD,T (SI) Enter. Ambient Temperature (C) Dry 30 35 40 45 Bulb Entering Wet Bulb Temperature (C) 3 m /h Temp 16 19 22 16 19 22 16 19 22 16 19 22 Airflow (C) TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC 3670 24 20.3 18.1 22.7 14.4 23.9 10.2 19.0 17.4 21.7 14.0 23.6 9.9 17.6 16.7 20.2 13.4 22.9 9.6 16.1 16.0 18.6 12.7 21.7 9.2 27 21.2 21.2 22.8 17.9 24.2 13.6 20.1 20.1 21.8 17.6 23.7
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Performance Data Table PD-3 — Gross Cooling Capacities (kW) WSC090AD,T (SI) Enter. Ambient Temperature (C) Dry 30 35 40 45 Bulb Entering Wet Bulb Temperature (C) 3 m /h Temp 16 19 22 16 19 22 16 19 22 16 19 22 Airflow (C) TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC 4590 24 25.5 22.7 28.1 18.0 29.5 12.6 23.7 21.8 26.9 17.4 29.0 12.3 21.9 21.0 25.1 16.6 28.1 11.9 20.5 16.8 20.7 12.4 20.8 9.3 27 26.5 26.5 28.2 22.3 29.8 16.8 25.2 25.2 27.1 22.1 29
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Performance Data Table PD-4 — Gross Cooling Capacities (kW) WSC120AD,T (SI) Enter. Ambient Temperature (C) Dry 30 35 40 45 Bulb Entering Wet Bulb Temperature (C) 3 m /h Temp 16 19 22 16 19 22 16 19 22 16 19 22 Airflow (C) TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC 6120 24 31.0 27.0 35.1 21.7 37.3 15.9 29.0 26.0 33.3 20.8 36.4 15.3 26.8 24.9 31.0 19.8 35.0 14.5 24.2 24.2 28.4 19.9 33.1 13.7 27 32.3 31.9 35.2 27.2 37.6 21.2 30.4 30.4 33.4 26.3 3
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Performance Data 3 Table PD-5 – Net Heating Capacities (kW) WSC060AD,T at 3,400 m /h (SI) Integrated Heating Capacity (kW) Total Power (kW) Outdoor At Indicated Indoor Dry Bulb Temp (C) At Indicated Indoor Dry Bulb Temp (C) Temp (C) 15 21 24 27 15 21 24 27 –24 4.1 4.1 4.1 4.0 3.2 3.7 3.9 4.2 –21 4.9 4.9 4.8 4.8 3.3 3.8 4.0 4.3 –18 5.8 5.7 5.6 5.5 3.4 3.8 4.1 4.3 –15 6.7 6.5 6.4 6.3 3.5 3.9 4.2 4.4 –12 7.6 7.4 7.3 7.2 3.6 4.0 4.3 4.5 –9 8.6 8.3 8.2 8.1 3.7 4.1 4.3 4.6 –6 9.6 9.3 9.1 9.0 3.8 4.2 4
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Performance Data 3 Table PD-6 — Three Phase Net Heating Capacities (kW) WSC072AD,T at 4,080 m /h (SI) Integrated Heating Capacity (kW) Total Power (kW) Outdoor At Indicated Indoor Dry Bulb Temp (C) At Indicated Indoor Dry Bulb Temp (C) Temp (C) 15 21 24 27 15 21 24 27 –24 6.3 6.2 6.2 6.2 4.5 4.9 5.1 5.3 –21 7.3 7.2 7.1 7.1 4.6 5.0 5.2 5.4 –18 8.3 8.1 8.1 8.0 4.7 5.0 5.2 5.5 –15 9.3 9.1 9.0 8.9 4.7 5.1 5.3 5.6 –12 10.4 10.2 10.1 9.9 4.8 5.2 5.4 5.6 –9 11.5 11.2 11.1 11.0 4.9 5.3 5.5 5.7 –6 12.6 1
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Performance Data 3 Table PD-7 — Three Phase Net Heating Capacities (kW) WSC090AD,T at 5,100 m /h (SI) Integrated Heating Capacity (kW) Total Power (kW) Outdoor At Indicated Indoor Dry Bulb Temp (C) At Indicated Indoor Dry Bulb Temp (C) Temp (C) 15 21 24 27 15 21 24 27 –24 4.0 7.3 8.2 8.7 4.8 5.8 6.2 6.7 –21 6.5 8.6 9.2 9.6 5.1 5.9 6.3 6.7 –18 8.4 9.8 10.3 10.5 5.2 6.0 6.4 6.8 –15 9.9 11.0 11.3 11.5 5.4 6.1 6.5 6.9 –12 11.5 12.2 12.5 12.6 5.5 6.2 6.6 6.9 –9 13.0 13.5 13.7 13.7 5.6 6.3 6.6 7.0 –6
