Trane PKGP-PRC003-EN User Manual

Packaged Heat Pumps

Precedent™ 3-10 Tons - 60 Hz

September 2004

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Introduction

Packaged Rooftop Air Conditioners

Through the years, Trane has designed and developed the most complete line of Packaged Rooftop products available in the market today. Trane was the first to introduce the Micro—microelectronic unit controls—and has continued to improve and revolutionalize this design concept.

The ReliaTel control platform offers the same great features and functionality as the original Micro, with additional benefits for greater application flexibility.

With its sleek compact cabinet, rounded corners and beveled top Precedent continues to provide the highest standards in quality and reliability, comfort, ease of service, and the performance of Trane light commercial products.

Trane customers demand products that provide exceptional reliability, meet stringent performance requirements, and are competitively priced. Trane delivers with Precedent.

Precedent features cutting edge technologies: reliable compressors, Trane engineered ReliaTel controls, computer-aided run testing, and Integrated Comfort™ Systems. So, whether you’re the contractor, the engineer, or the owner you can be certain Precedent Products are built to meet your needs.

It’s Hard To Stop A Trane.

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

13 14

17 20 29

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Mechanical Specifications

Features and Benefits

Factory Installed Options

• Black Epoxy Pre-Coated Coils

• High Pressure Cutout

• Hinged Access Doors

• Phase Monitor

• Powered or Unpowered Convenience Outlet

• Supply and/or Return Air Smoke Detector

• Through the Base Electrical Access

• Through the Base Electrical With Circuit Breaker

• Through the Base Electrical With Disconnect Switch

• Two-Inch Pleated Filters

Factory or Field Installed Options

• Clogged Filter/Fan Failure Switch

• Differential Pressure Switches

• Discharge Air Sensing Kit

• Economizer

• Electric Heaters

• Frostat

• LonTalk

• Oversized Motors

• Reference or Comparative Enthalpy

• Tool-less Hail Guards

• Trane Communications Interface (TCI)

Communications Interface

Field Installed Options

• CO

Sensing

• Digital Display Zone Sensor

• Dual Thermistor Remote Zone Sensor

• High Static Drive

• Manual Outside Air Damper

• Motorized Outside Air Dampers

• Powered Exhaust

• Remote Potentiometer

• Roof Curb

• Thermostat

• Ventilation Override Accessory

• Zone Sensor

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Features and Benefits

Easy to Install, Service and Maintain

Because today’s owners are very costconscious when it comes to service and maintenance, the Trane Precedent was designed with direct input from service contractors. This valuable information helped to design a product that would get the serviceman off the job quicker and save the owner money. Precedent does this by offering:

Quality and Reliability

ReliaTel™ Controls (LCI-R)

ReliaTel controls provide unit control for heating, cooling and ventilating utilizing input from sensors that measure outdoor and indoor temperature.

Quality and Reliability are enhanced through ReliaTel control and logic:

—prevents the unit from short cycling,

considerably improving compressor life.

—ensures that the compressor will run

for a specific amount of time which allows oil to return for better lubrication, enhancing the reliability of the compressor.

Precedent with ReliaTel reduces the number of components required to operate the unit, thereby reducing possibilities for component failure.

ReliaTel Makes Installing and Servicing Easy

ReliaTel eliminates the need for field installed anti-shortcycle timer and time delay relays. ReliaTel controls provide these functions as an integral part of the unit. The contractor no longer has to purchase these controls as options and pay to install them.

The wiring of the low voltage connections to the unit and the zone sensors is as easy as 1-1, 2-2, and 3-3. This simplified system makes wiring easier for the installer.

ReliaTel Makes Testing Easy

ReliaTel requires no special tools to run the Precedent unit through its paces. Simply place a jumper between Test 1 and Test 2 terminals on the Low Voltage Terminal Board and the unit will walk through its operational steps automatically. — The unit automatically returns control to the zone sensor after stepping through the test mode a single time, even if the jumper is left on the unit.

As long as the unit has power and the “system on” LED is lit, ReliaTel is operational. The light indicates that the controls are functioning properly.

ReliaTel features expanded diagnostic capabilities when utilized with Trane Integrated Comfort™ Systems.

Some zone sensor options have central control panel lights which indicate the mode the unit is in and possible diagnostic information (dirty filters for example).

Other ReliaTel Benefits

The ReliaTel built-in anti-shortcycle timer, time delay relay and minimum “on” time control functions are factory tested to assure proper operation.

ReliaTel softens electrical “spikes” by staging on fans, compressors and heaters.

Intelligent Fallback is a benefit to the building occupant. If a component goes astray, the unit will continue to operate at predetermined temperature setpoint.

Intelligent Anticipation is a standard ReliaTel feature. It functions continuously as ReliaTel and zone sensor(s) work together in harmony to provide much tighter comfort control than conventional electro-mechanical thermostats.

The same ReliaTel Board fits all Precedent Packaged Gas/Electrics, Cooling with Electric Heat, and Heat Pump models. This provides standardization of parts for contractors. Less money is tied up in inventory with ReliaTel.

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ReliaTel™

Features and Benefits

Outstanding Standard and Optional Components

Black Epoxy Pre-Coated Coils

The pre-coated coils are an economical option for protection in mildly corrosive environments.

Cabinet Integrity

For added water integrity, Precedent has a raised 11/8" lip around the supply and return of the downflow units to prevent water from blowing into the ductwork.

Clogged Filter/Fan Failure Switch

A dedicated differential pressure switch is available to achieve active fan failure indication and/or clogged filter indication.

These sensors allow a zone sensor service light or Integrated Comfort System to indicate a dirty filter or a fan that’s not working. The field installation charges for these valuable feedback devices often eliminate them from consideration. Factory installation can make such features a good investment.

Sensing

The CO space occupancy levels within the building by measuring the parts per million of CO As the CO2 levels increase, the outside air damper modulates to meet the CO space ventilation requirements. The CO sensor kit is available as a field installed accessory.

Colored And Numbered Wiring

Save time and money tracing wires and diagnosing the unit.

sensor has the ability to monitor

(Carbon Dioxide) in the air.

Compressors

Precedent contains the best compressor technology available to achieve the highest possible performance. Our compressor line includes reciprocating and scrolls.

Condenser Coil

Precedent boasts a patent-pending 1+1+1 condenser coil, permanently gapped for easy cleaning.

Digital Display Zone Sensor

The Digital LCD (Liquid Crystal Display) zone sensor has the look and functionality of standard zone sensors. This sensor should be utilized with ReliaTel™ controls.

Discharge Air Sensing Kit

Provides true discharge air sensing in heating models. The kit is functional only with the ReliaTel Options Module.

Downflow And Horizontal Economizers

The economizers come with three control options — dry bulb is standard, enthalpy and differential enthalpy are optional.

Dual Thermistor Remote Zone Sensor

This sensor will reduce the total number of remote sensors to obtain space temperature averaging. This sensor should be utilized with ReliaTel controls.

Foil-Faced Insulation

All panels in the evaporator section of the unit have cleanable foil-faced insulation. All edges are either captured or sealed to ensure no fibers get into the airstream.

Factory Built Roof Curbs

Only two roof curbs for the entire Precedent line simplifies curb selection.

Flexibility

Units are built to order in our standard “shortest in the industry” ship cycle time.

Fresh Air

0 - 25% manual or 0 - 50% motorized outside air hoods are available.

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Features and Benefits

High Pressure Cutout

This factory-installed option is offered for units that do not have High Pressure Cutout as standard. All 3-phase units with scroll compressors include High Pressure cutout as standard.

High Static Drive Accessory

Available on many models, this high static drive accessory extends the capability of the standard motor. Avoid expensive motors and operating costs by installing this optimized sheave accessory.

Hinged Access Doors

These doors permit easy access to the filter, fan/heat, and compressor/control sections. They reduce the potential roof damage from screws or sharp access door corners.

LonTalk Communications Interface

The LonTalk communications interface allows the unit to communicate as a Tracer™LCI-V device or directly with generic LonTalk Network Building Automation System Controls.

Phase Monitor

Phase monitor shall provide 100% protection for motors and compressors against problems caused by phase loss, phase imbalance, and phase reversal. Phase monitor is equipped with an LED that provides an ON or FAULT indicator.

Power Exhaust Option

This option is available to maintain proper building pressurization. Great for relieving most building overpressurization problems.

Quick-Access Panels

Remove two screws for access to the standardized internal components and wiring.

Quick-Adjust Idler Arm

With the Quick-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.

Reference or Comparative Enthalpy

Measures and communicates humidity while maximizing comfort control.

Sloped Drain Pans

Every Precedent unit has a noncorrosive, removable, double-sloped drain pan that’s easy to clean and reversible to allo w installation of drain trap on either side of the unit.

Standardized Components

Components are placed in the same location on all Precedent units. Familiarize yourself with one Precedent and you are familiar with every Precedent.

Due to standardized components throughout the Precedent line, contractors/owners can stock fewer parts.

Supply and/or Return Air Smoke Detector

With this option installed, if smoke is

detected, all unit operation will be shut down. Reset will be

manual at the unit.

Return Air Smoke Detectors require minimum allowable

airflow when used with certain models.

Tool-less Hail Guards

Tool-less, hail protection quality coil guards shall be either factory or fieldinstalled for condenser coil protection. This option protects the condenser coil from vandalism and/or hail damage.

Trane Communication Interface (TCI)

Available factory or field installed. This module when applied with the ReliaTel™ easily interfaces with Trane’s Integrated Comfort

System.

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Features and Benefits

Unit Cabinet

The compact cabinet with rounded corners takes up less room and is less costly to ship. The beveled and ribbed top is not only aesthetically pleasing, it is designed to prevent water from pooling.

Va riTra c

When Trane’s changeover VAV System for light commercial applications is coupled with Precedent, it provides the latest in technological advances for comfort management systems and can allow thermostat control in every zone served by VariTrac.

Ventilation Override Accessory

With the Ventilation Override Accessory installed, the unit can be set to transition to up to 3 different pre-programmed sequences for Smoke Purge, Pressurization, and Exhaust. The transition occurs when a binary input on the RTOM is closed (shorted). This would typically be a hard wired relay output from a smoke detector or fire control panel. The ventilation override kit is available as a field installed accessory.

Zone Sensors

Available in programmable, automatic and manual styles.

Precedent offers ultimate flexibility. Units are built to order in our standard “shortest in the industry” ship cycle time.

Rigorous Testing

All of Precedent’s designs were rigorously rain tested at the factory to ensure water integrity.

Actual shipping tests were performed to determine packaging requirements. Units were test shipped around the country to determine the best packaging. Factory shake and drop tests were used as part of the package design process to help assure that the unit arrives at the job site in top condition.

Rigging tests include lifting a unit into the air and letting it drop one foot, assuring that the lifting lugs and rails hold up under stress.

We perform a 100% coil leak test at the factory. The evaporator and condenser coils are leak tested at 200 psig and pressure tested to 450 psig.

All parts are inspected at the point of final assembly. Sub-standard parts are identified and rejected immediately.

Every unit receives a 100% unit run test before leaving the production line to make sure it lives up to rigorous Trane requirements.

VariTrac™

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Features and Benefits

Easy to Install

Convertible Units

–The units ship in a downflow

configuration. They can be easily converted to horizontal by simply moving two panels.

– Units come complete with horizontal

duct flanges so the contractor doesn’t have to field fabricate them. These duct flanges are a time and cost saver.

Easy Access Low Voltage Terminal Board

Precedent’s Low Voltage Terminal Board is external to the electrical control cabinet. It is extremely easy to locate and attach the thermostat wire and test operation of all unit functions. This is another cost and time saving installation feature.

Low Voltage Connections

The wiring of the low voltage connections to the unit and the zone sensors is as simple as 1-1, 2-2, and 3-3. This simplified system makes it easy for the installer to wire.

Electric Heaters

Electric heat modules are available within the basic unit. If ordering the Through the Base Electrical option with an Electrical Heater, the heater must be factory installed.

Powered or Unpowered Convenience Outlet

This option is a GFCI, 120v/15amp, 2 plug, convenience outlet, either powered or unpowered. This option can only be ordered when the Through the Base Electrical with either the Disconnect Switch, or Circuit Breaker, option is ordered.

Single Point Power

A single electrical connection powers the unit.

Single Side Service

Single side service is standard on all units.

Through the Base Condensate

Every unit includes provisions for through the base condensate drain connections. This allows the drain to be connected through the roof curb instead of a roof penetration.

Through the Base Electrical Utility Access

Factory provided through the base openings simplify wiring and piping. Because these utility openings frequently minimize the number of roof penetrations, the integrity of roofing materials is enhanced.

Through the Base Electrical with Circuit Breaker

This option is a factory installed thermal magnetic, molded case, HACR Circuit Breaker with provisions for through the base electrical connections.

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Features and Benefits

Through the Base Electrical with Disconnect Switch

Factory installed 3-pole, molded case, disconnect switch with provisions for through the base electrical connections are available.

Through the Base Utilities Access

An electrical service entrance shall be provided allowing electrical access for both control and main power connections inside the curb and through the base of the unit. Option will allow for field installation of liquid-tight conduit and an external field installed disconnect switch.

Unit Mounted Disconnect or Circuit Breaker

Codes require a method of assured unit shutdown for servicing. Field-installed disconnects sometimes interfere with service access. Factory installation of unit disconnects reduces costs, assures proper mounting and provides the opportunity to upgrade to unit circuit breaker protection.

Unit Mounted Disconnect or Circuit Breaker

Factory Installed Options

A wide variety of Factory Installed Options (FIOPs) are available.

Convenience Outlet

Added Efficiency

Airflow

Airflow is outstanding. The Precedent can replace an older machine with old ductwork and, in many cases, improve the comfort through better air distribution.

Belt or direct drive – standard or oversized supply fan motors meet a wide airflow range.

Cooling

Standard or High Efficiency Cooling available.

Economizer

Equipped with either dry bulb, reference or comparative enthalpy sensing, this feature provides free cooling as the outdoor temperature and/or humidity decreases. Economizers, correctly installed, offer a valuable energy savings. Factory-installed economizers save time and ensure proper installation.

High Efficiency Motors

This option is available with efficiency ratings from 86.5 up to 91.0. It is not available for all models.

Low Ambient Cooling

All Precedent microprocessor units have cooling capabilities down to 0°F as standard. Electromechanical models have cooling capabilities to 40°F as built, or to 0°F by adding the optional low ambient control (frostat).

Oversized Motors

Factory or field installed oversized motors available for high static applications.

One of our Finest Assets:

Trane Sales Representatives are a Support Group that can assist you with: — Product — Application — Service — Training — Special Applications — Specifications — Computer Programs and much more

Precedent has the features and benefits that make it first class in the light commercial rooftop market.

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Application Considerations

Application of this product should be within the cataloged airflow and cooling considerations.

Low Ambient Cooling

The Precedent™ line features, with ReliaTel™ microprocessor controls, low ambient cooling down to 0°F.

Barometric Relief

This product line offers an optional barometric relief damper. for use in conjunction with economizer option. This accessory consists of gravity dampers which open with increased pressure. As the building air pressure increases, the pressure in the unit return air section also increases, opening the dampers and relieving the conditioned space.

NOTE: THE EFFECTIVENESS OF BAROMETRIC RELIEF DAMPER DURING ECONOMIZING OPERATION IS SYSTEM RELATED.

PRESSURE DROP OF THE RETURN AIR SYSTEM SHOULD BE CONSIDERED TO CONTROL BUILDING PRESSURIZATION.

Condensate Trap

The evaporator is a draw-thru configuration. A trap must be field provided prior to start-up on the cooling cycle.

Clearance Requirements

The recommended clearances identified with unit dimensions should be maintained to assure adequate service maximum capacity and peak operating efficiency. Actual clearances which appear inadequate should be reviewed with the local Trane sales personnel.

Unit Pitch

These units have reversible sloped condensate drain pans. Units must be installed level, any unit slope must be toward the side of unit where condensate drain is connected.

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Selection Procedures

Cooling Capacity

Step 1

Calculate the building’s total and sensible cooling loads at design conditions. Use the Trane calculation methods or any other standard accepted method.

Factors used in unit selection:

Total Cooling Load: 59 MBh

Sensible Cooling Load: 40 MBh

Airflow: 2000 cfm

Electrical Characteristics: 460/60/3

Summer Design Conditions: Entering Evaporator Coil: 80 DB, 67 WB Outdoor Ambient: 95

External Static Pressure: 0.36 in. wg

Downflow Configuration

High Efficiency

Economizer

Step 2

As a starting point, a rough determination must be made of the size of the unit. The final selection will be made after examining the performance at the given conditions. Divide the total cooling load by nominal BTUH per ton (12 MBh per ton); then round up to the nearest unit size.

59 MBh / 12 MBh = approx. 5 tons

Step 3

Table PD-3 shows that a WSC060A4 has a gross cooling capacity of 63.1 MBh and

47.5 MBh sensible capacity at 2000 cfm and 95 DB outdoor ambient with 80 DB, 67 WB air entering the evaporator.

To Find Capacity at Intermediate Conditions Not in the Table

When the design conditions are between two numbers that are in the capacity table, interpolation is required to approximate the capacity. Note: Extrapolation outside of the table conditions is not recommended.

Step 4

In order to select the correct unit which meets the building’s requirements, the fan motor heat must be deducted from the gross cooling capacity. The amount of heat that the fan motor generates is dependent on the effort by the motor cfm and static pressure. To determine the total unit static pressure:

External Static (duct system)

0.36 wg

Standard Filter 1 in. 0.09 wg from Table PD-23

Economizer 0.18 wg

(100% Outside Air) from Table

PD-23

Electric Heater Size 6 kW 0.056 wg from Table PD-23

(reference “Heating Capacity” section on this page for determination of heater size)

Total Static Pressure 0.69 wg

Note: The Evaporator Fan Performance Table PD-12 has deducted the pressure drop for a 1 in. filter already in the unit (see note below Table PD-12). Therefore, the actual total static pressure is 0.69 -

0.09 (from Table PD-23) = 0.60 wg.

With 2000 cfm and 0.60 wg. Table PD-46 shows .90 bhp for this unit. Note below the table gives a formula to calculate Fan Motor Heat,

2.829 x bhp + .4024 = MBH.

2.829 x .90 + .4024 = 2.95 MBH.

Now subtract the fan motor heat from the gross cooling capacity of the unit: Net Total Cooling Capacity = 63.1 MBH - 2.95 = 60.15 MBH.

Net Sensible Cooling Capacity = 47.5 MBH - 2.95 = 44.55 MBH.

Step 5

Compare results to original load requirements. If the performance will not meet the building’s required total or sensible cooling load, try a selection at the next higher size unit.

Heating Capacity

Step 1

Calculate the building heating load using the Trane calculation form or other standard accepted method.

Step 2

Size the equipment using Table PD-31 to match the heating loads at design conditions.

Total heating load: 50 MBH

Outdoor Ambient (Winter) 17 DB

Indoor Return Temperature: 70 DB

Airflow: 2000cfm

Use the integrated portion of Table PD-31 for the WSC060A4 to determine capacity at winter design conditions. The mechanical heating portion of the heat pump will provide 32.7 MBh.

Step 3

Because 32.7 is less than the building’s required heating capacity at winter design conditions, a supplementary heater must be selected.

50 MBh-32.7 MBh = 17.3 MBh

The auxiliary eletric heat capacities are listed in Table PD-38. From the table, a 6 kW heater will deliver 20.48 MBH at 480 volts. In order to determine capacity at 460 volts, the heater voltage correction factor from Table PD-39 must be used. Therefore, 20.48 MBH x .918 (voltage correction factor) = 18.80 MBH. A 6kW heater should be selected.

Air Delivery Selection

External static pressure drop through the air distribution system has been calculated to be 0.60 inches of water. Enter Table PD-12 for a WSC060A4 at 2000 cfm and 0.60 static pressure. The belt drive motor will give the desired airflow at a rated bhp of 0.90 and 998 rpm.

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Model Number Description

W S C 036 A 3 R B A ** C 0 0 0 A 1 0 0 0 1 A 1

1 2 3 4,5,6 7 8 9 10 11 12,13 14 15 16 1 7 1 8 1 9 2 0 21 22 2 3 2 4 2 5

DIGIT 1 - Unit Function

W = Packaged Heat Pump

DIGIT 2 - Efficiency

S = Standard Efficiency

DIGIT 3 - Airflow

C = Convertible

DIGITS 4,5,6 - Nominal Gross Cooling Capacity (MBh)

036 = 3 Ton 048 = 4 Ton 060 = 5 Ton 072 = 6 Ton 090 = 7½ Ton 120 = 10 Ton

DIGIT 7 - Major Design Sequence

A = First

DIGIT 8 - Unit Voltage

1 = 208-230/60/1 3 = 208-230/60/3 4 = 460/60/3 W = 575/60/3

DIGIT 9 - Unit Controls

R = ReliaTel™Microprocessor

DIGIT 10 - Electric Heater

0 = No Electric Heater A = 5 kw (1 phase) B = 6 kw (3 phase) D = 10 kw (1 phase) E = 12 kw (3 phase) F = 14 kw (1 phase) G = 18 kw (1 and 3 phase) J = 23 kw (3 phase) K = 27 kw (3 phase) N = 36 kw (3 phase) P = 54 kw (3 phase)

DIGIT 11 - Minor Design Sequence

A = First Sequence

DIGITS 12,13 - Service Sequence

** = Factory Assigned

DIGIT 14 - Fresh Air Selection

0 = No Fresh Air A = Manual Outside Air Damper 0-50% B = Motorized Outside Air Damper 0-50% C = Economizer, Dry Bulb 0-100% without

Barometric Relief

D = Economizer, Dry Bulb 0-100% with

Barometric Relief

E = Economizer, Reference Enthalpy

0-100% without Barometric Relief

F = Economizer, Reference Enthalpy

0-100% with Barometric Relief

G = Economizer, Comparative Enthalpy

0-100% without Barometric Relief

H = Economizer, Comparative Enthalpy

0-100% with Barometric Relief

DIGIT 15 - Supply Fan/Drive Type/Motor

0 = Standard Drive 1 = Oversized Motor 2 = Optional Belt Drive Motor

DIGIT 16 - Hinged Service Access/Filters

0 = Standard Panels/Standard Filters A = Hinged Access Panels/Standard Filters B = Standard Panels/2” Pleated Filters C = Hinged Access Panels/2” Pleated

Filters

DIGIT 17 - Condenser Coil Protection

0 = Standard Coil 1 = Standard Coil with Hail Guard 2 = Epoxy Coated Condenser Coil 3 = Epoxy Coated Condenser Coil

with Hail Guard

DIGIT 18 - Through the Base Provisions

0 = No Through the Base Provisions A = Through the Base Electric

DIGIT 19 - Disconnect/Circuit Breaker/ Phase Monitor (3 phase only)

0 = No Disconnect/NoCircuit Breaker/No

Phase Monitor 1 = Unit Mounted Non-Fused Disconnect 2 = Unit Mounted Circuit Breaker 3 = Phase Monitor 4 = Phase Monitor & Non-Fused

Disconnect Switch 5 = Phase Monitor & Circuit Breaker

DIGIT 20 - Convenience Outlet

0 = No Convenience Outlet A = Unpowered Convenience Outlet B = Powered Convenience Outlet

(3 phase only)

DIGIT 21 - Communications Options

0 = No Communications Interface 1 = Trane Communications

Interface

2 = LonTalk® Communications

Interface

DIGIT 22 - Refrigeration System Option

0 = Standard Refrigeration System

DIGIT 23 - Refrigeration Controls

0 = No Refrigeration Control 1 = High Pressure Control 2 = Frostat 3 = Crankcase Heater 4 = High Pressure Control and Frostat 5 = High Pressure Control and Crankcase

Heater 6 = Frostat and Crankcase Heater 7 = High Pressure Control, Frostat and

Crankcase Heater

DIGIT 24 - Smoke Detector

0 = No Smoke Detector A = Return Air Smoke Detector B = Supply Air Smoke Detector C = Supply and Return Air Smoke

Detectors

DIGIT 25 - Monitoring Controls

0 = No Monitoring Control 1 = Clogged Filter Switch 2 = Fan Failure Switch 3 = Discharge Air Sensing Tube 4 = Clogged Filter Switch and Fan Fail

Switch 5 = Clogged Filter Switch and Discharge

Air Sensing Tube 6 = Fan Fail Switch and Discharge Air

Sensing Tube 7 = Clogged Filter and Fan Fail Switches

and Discharge Air Sensing Tube

Example:

Model number WSC036A3RBA##C000A10001A0 describes a unit with the following characteristics: Packaged Heat Pump, 3 ton nominal cooling capacity, 208-230/60/3 power supply, ReliaTel™ controls, 6 kw electric heater model. 0-100% dry bulb economizer without barometric relief, standard direct drive motor, standard access panels/filters, standard condenser coil with no coil protection, through the base electric access, non-fused disconnect, no convenience outlet or communications interface, standard refrigeration coil, high pressure control, return air smoke detector, and clogged filter switch.

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General Data

(3, 4 Ton)

Table GD-1 — General Data

3 Ton Convertible Units 4 Ton Convertible Units

Cooling Performance

Gross Cooling Capacity 38,100 38,100 50,800 50,800

SEER Nominal CFM / ARI Rated CFM 1,200 / 1,200 1,200 / 1,200 1,600 / 1,600 1,600 / 1,600 ARI Net Cooling Capacity 36,600 36,000 48,500 48,500 Integrated Part Load Value — — — — System Power (KW) 4.09 3.96 5.16 5.05

Heating Performance

High Temp. Btuh Rating 35,000 35,000 47,000 47,000

System Power KW 3.46 3.35 4.68 4.53

Low Temp. Btuh Rating 18,600 18,600 28,800 28,800

System Power KW 2.78 2.65 4.14 4.02

HSPF (Btu/Watts-hr) 6.75 6.95 6.80 6.90

Compressor

No./Type 1/Recip. 1/Recip. 1/Scroll 1/Scroll

Outdoor Sound Rating (dB) Outdoor Coil — Type Lanced Lanced Lanced Lanced

Tube Size (in.) OD .3125 .3125 .3125 .3125 Face Area (sq ft) 9.59 9.59 9.59 9.59 Rows/FPI 2/17 2/17 3/17 3/17 Refrigerant Control Expansion Valve Expansion Valve Expansion Valve Expansion Valve

Indoor Coil — Type Lanced Lanced Lanced Lanced

Tube Size (in.) .3125 .3125 .3125 .3125 Face Area (sq ft) 6.17 6.17 6.68 6.68 Rows/FPI 3/16 3/16 3/16 3/16 Refrigerant Control Short Orifice Short Orifice Short Orifice Short Orifice Drain Connection No./Size (in.) 1/¾ NPT 1/¾ NPT 1/¾ NPT 1/¾ NPT

Outdoor Fan — Type Propeller Propeller Propeller Propeller

No. Used/Diameter (in.) 1/22 1/22 1/22 1/22 Drive Type/No. Speeds Direct/1 Direct/1 Direct/1 Direct/1 CFM 2,950 2,950 3,200 3,200 No. Motors/HP 1/.25 1/.25 1/.40 1/.40 Motor RPM 1,075 1,075 1,075 1,075

Direct Drive Indoor Fan — Type FC Centrifugal FC Centrifugal FC Centrifugal FC Centrifugal

No. Used 1 1 1 1 Diameter x Width (in.) 10 x 10 10 x 10 11 x 11 11 x 11 Drive Type/No. Speeds Direct/2 Direct/2 Direct/2 Direct/2 No. Motors 1 1 1 1 Motor HP (Standard/Oversized) .33/.50 .33/.50 .60/.80 .60/.80 Motor RPM (Low/High Speed) 950/1,060 950/1,060 930/1,000 930/1,000 Oversized Motor RPM (Low/High Speed) 1,100/1,145 1,100/1,145 1,000/1,100 1,000/1,100 Motor Frame Size (Standard/Oversized) 48/48 48/48 48/48 48/48

Belt Drive Indoor Fan — Type — FC Centrifugal — FC Centrifugal

No. Used — 1 — 1 Diameter x Width (in.) — 11 x 11 — 11 x 11 Drive Type/No. Speeds — Belt/Variable Speed — Belt/Variable Speed No. Motors — 1 — 1 Motor HP (Standard/Oversized) — 1.00/ — — 1.00/ — Motor RPM (Standard/Oversized) — 1,750/ — — 1,750/ — Motor Frame Size (Standard/Oversized) — 56/ — — 56/ —

Filters — Type Furnished (No.) Size Recommended (in.) (2) 20 x 25 x 1 (2) 20 x 25 x 1 (2) 20 x 25 x 1 (2) 20 x 25 x 1 Refrigerant Charge (Lbs of R-22)

Notes:

1. Cooling Performance and Heating Performance is rated at 95 F ambient, 80 F entering dry bulb, 67 F entering wet bulb . Gross capacity does not include the effect of fan motor heat. ARI capacity is net and includes the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Certified in accordance with the Air-Source Unitary Heat Pump Equipment certification program, which is based on ARI Standard 210/240.

2. SEER is rated at ARI conditions and in accordance with DOE test procedures.

3. Outdoor Sound Rating shown is tested in accordance with ARI Standard 270. For more information refer to Table PD-25.

4. Refrigerant charge is an approximate value. For a more precise value, see unit nameplate and service instructions.

5. Optional 2 inch pleated filters are also available.

WSC036A1 WSC036A3,A4,AW WSC048A1 WSC048A3,A4,AW

9.80 10.20 10.50 10.70

82 82 85 85

Throwaway Throwaway Throwaway Throwaway

6.5 6.8 9.4 10.2

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General Data (5, 6 Ton)

Table GD-2 — General Data

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 ARI Net Cooling Capacity 60,000 60,000 70,000 Integrated Part Load Value — — — System Power (KW) 6.90 6.74 6.6

Heating Performance

High Temp. Btuh Rating 59,000 59,000 68,000

System Power KW/COP 5.96/ — 5.76/ — 6.04/3.3

Low Temp. Btuh Rating 36,200 36,200 38,000

System Power KW/COP 5.30/ — 5.05/ — 5.06/2.2

HSPF (Btu/Watts-hr) 6.96 7.00 —

Compressor

No./Type 1/Scroll 1/Scroll 1/Scroll

Outdoor Sound Rating (dB)

85 85 90

Outdoor Coil — Type Lanced Lanced Lanced

Tube Size (in.) OD .3125 .3125 .3125 Face Area (sq ft) 9.59 9.59 17.00 Rows/FPI 3/17 3/17 2/17 Refrigerant Control Expansion Valve Expansion Valve Expansion Valve

Indoor Coil — Type Lanced Lanced Lanced

Tube Size (in.) .3125 .3125 .3125 Face Area (sq ft) 6.68 6.68 9.89 Rows/FPI 3/16 3/16 3/16 Refrigerant Control Short Orifice Short Orifice Short Orifice Drain Connection No./Size (in.) 1/¾ NPT 1/¾ NPT 1/¾ NPT

Outdoor Fan — Type Propeller Propeller Propeller

No. Used/Diameter (in.) 1/22 1/22 1/26 Drive Type/No. Speeds Direct/1 Direct/1 Direct/1 CFM 3,200 3,200 6,200 No. Motors/HP 1/.40 1/.40 1/.70 Motor RPM 1,075 1,075 1,075

Direct Drive Indoor Fan — Type FC Centrifugal FC Centrifugal —

No. Used 1 1 — Diameter x Width (in.) 11 x 11 Drive Type/No. Speeds Direct/2 Direct/2 — No. Motors 1 1 — Motor HP (Standard/Oversized) .90/1.00 .90/1.00 — Motor RPM (Low/High Speed) 985/1,100 985/1,100 — Oversized Motor RPM (Low/High Speed) 1,080/1,135 1,080/1,135 — Motor Frame Size (Standard/Oversized) 48/48 48/48 —

Belt Drive Indoor Fan — Type — FC Centrifugal FC Centrifugal

No. Used — 1 1 Diameter x Width (in.) — 11 x 11 12 x 12 Drive Type/No. Speeds — Belt/Variable Speed Belt/Variable Speed No. Motors — 1 1 Motor HP (Standard/Oversized) — 1.00/ — 1.00/2.00 Motor RPM (Standard/Oversized) — 1,750/ — 1,750/1,750 Motor Frame Size (Standard/Oversized) — 56/ — 56/56

Filters — Type Furnished

(No.) Size Recommended (in.) (2) 20 x 25 x 1 (2) 20 x 25 x 1 (4) 16 x 25 x 2

Refrigerant Charge (Lbs of R-22)

Notes:

2. SEER is rated at ARI conditions and in accordance with DOE test procedures.

3. Outdoor Sound Rating shown is tested in accordance with ARI Standard 270. For more information refer to Table PD-25.

4. Refrigerant charge is an approximate value. For a more precise value, see unit nameplate and service instructions.

5 Fan Diameter with oversized motor is 12 x 11.

6. Optional 2 inch pleated filters are also available.

Throwaway Throwaway Throwaway

7.9 8.5 8.2

5 Ton Convertible Units 6 Ton Convertible Units

11 x 11

—

PKGP-PRC0 03-EN

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

EER Nominal CFM / ARI Rated CFM 3,000/2,625 4,000/3,200 ARI Net Cooling Capacity 88,000 113,000 Integrated Part Load Value — 10.7 System Power (KW) 8.71 11.19

Heating Performance

High Temp. Btuh Rating 88,000 108,000

System Power KW/COP 8.06/ 3.2 9.59/3.3

Low Temp. Btuh Rating 50,000 59,000

System Power KW/COP 6.66/2.2 7.86/2.2

HSPF (Btu/Watts-hr) — —

Compressor

No./Type 1/Scroll 2/Scrolls

Outdoor Sound Rating (dB) Outdoor Coil — Type Lanced Lanced

Tube Size (in.) OD .3125 .3125 Face Area (sq ft) 17.00 19.83 Rows/FPI 3/17 3/17 Refrigerant Control Expansion Valve Expansion Valve

Indoor Coil — Type Lanced Lanced

Tube Size (in.) .3125 .3125 Face Area (sq ft) 9.89 12.36 Rows/FPI 4/16 4/16 Refrigerant Control Short Orifice Short Orifice Drain Connection No./Size (in.) 1/¾ NPT 1/¾ NPT

Outdoor Fan — Type Propeller Propeller

No. Used/Diameter (in.) 1/26 1/26 Drive Type/No. Speeds Direct/1 Direct/1 CFM 6,400 6,700 No. Motors/HP 1/.70 1/.75 Motor RPM 1,075 1,075

Belt Drive Indoor Fan — Type FC Centrifugal FC Centrifugal

No. Used 1 1 Diameter x Width (in.) 12 x 12 15 x 15 Drive Type/No. Speeds Belt/Variable Speed Belt/Variable Speed No. Motors 1 1 Motor HP (Standard/Oversized) 1.00/3.00 2.00/ 5.00 Motor RPM (Standard/Oversized) 1,750/1,750 1,750/3,450 Motor Frame Size (Standard/Oversized) 56/56 56/56

Filters — Type Furnished

(No.) Size Recommended (in.) (4) 16 x 25 x 2 (4) 20 x 25 x 2

Refrigerant Charge (Lbs of R-22)

Notes:

2. SEER is rated at ARI conditions and in accordance with DOE test procedures.

3. Outdoor Sound Rating shown is tested in accordance with ARI Standard 270. For more information refer to Table PD-25.

4. Refrigerant charge is an approximate value. For a more precise value, see unit nameplate and service instructions.

5. Optional 2 inch pleated filters are also available.

10.1 10.1

90 88

Throwaway Throwaway

12.2 7.9 Circuit #1/7.9 Circuit #2

PKGP-PRC0 03-EN

Performance Data (3, 4 Ton)

Table PD-1 — Gross Cooling Capacities (MBH) 3 Ton Single/Three Phase WSC036A1, A3, A4, AW

Enter.

CFM Bulb 61 67 73 61 67 73 61 67 73 61 67 73 Airflow (F) MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC

1080

1200

1320

1440

Notes:

1. All capacities shown are gross and have not considered indoor fan heat. To obtain net cooling subtract indoor fan heat.

2. MBH = Total Gross Capacity

3. SHC = Sensible Heat Capacity

Dry Entering Wet Bulb (F)

75 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 80 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 85 37.7 37.7 40.1 33.5 43.4 26.1 35.3 35.3 37.6 32.4 41.5 25.3 32.7 32.7 34.4 30.8 39.3 24.4 30.1 30.1 31.0 29.2 36.3 23.1 90 40.0 40.0 40.7 38.9 43.9 31.0 38.0 38.0 38.3 38.1 41.9 30.4 35.6 35.6 35.6 35.6 39.5 29.8 32.9 32.9 32.9 32.9 36.6 28.6 75 35.7 30.8 40.3 23.5 42.7 15.5 32.5 29.2 37.9 22.3 41.4 14.6 29.3 27.5 34.6 20.8 39.4 13.6 26.2 25.9 30.9 19.1 36.8 12.4 80 36.6 36.6 40.5 29.5 43.3 21.9 34.1 34.1 38.1 28.5 41.7 20.9 31.4 31.4 34.8 26.9 39.7 19.8 28.7 28.7 31.2 25.3 36.9 18.5 85 39.3 39.3 40.9 35.4 43.9 26.9 37.0 37.0 38.5 34.6 42.0 26.3 34.4 34.4 35.4 33.2 39.8 25.7 31.7 31.7 32.0 31.6 37.0 24.6 90 41.4 41.4 41.6 41.2 44.4 32.2 39.6 39.6 39.6 39.6 42.5 31.8 37.3 37.3 37.3 37.3 40.2 31.6 34.6 34.6 34.6 34.6 37.3 30.6

75 36.6 32.7 40.7 24.5 43.0 15.8 33.4 31.0 38.5 23.3 41.7 14.9 30.2 29.4 35.3 21.8 39.8 13.8 26.9 26.9 31.5 20.1 37.2 12.7 80 38.1 38.1 41.0 30.7 43.6 22.6 35.5 35.5 38.7 30.0 42.1 21.6 32.8 32.8 35.6 28.6 40.1 20.6 30.0 30.0 31.9 26.9 37.4 19.4 85 40.4 40.4 41.5 37.0 44.2 29.4 38.4 38.4 39.3 36.7 42.6 27.5 35.9 35.9 36.4 35.5 40.3 26.9 33.0 33.0 33.0 33.0 37.6 26.0 90 42.4 42.4 42.4 42.4 44.8 33.2 40.8 40.8 40.8 40.8 42.9 33.1 38.7 38.7 38.7 38.7 40.8 33.2 36.1 36.1 36.1 36.1 38.0 32.6

75 37.3 34.5 41.0 25.1 43.3 16.0 34.2 32.9 38.9 24.3 41.9 15.1 30.8 30.8 35.8 22.8 40.1 14.1 27.9 27.9 32.0 21.2 37.6 13.0 80 39.2 39.2 41.4 31.9 43.9 23.4 36.8 36.8 39.2 31.5 42.4 22.1 34.0 34.0 36.2 30.2 40.4 21.4 31.1 31.1 32.6 28.6 37.8 20.2 85 41.3 41.3 42.0 38.5 44.5 28.2 39.5 39.5 40.0 38.6 42.9 28.2 37.1 37.1 37.1 37.1 40.7 28.0 34.3 34.3 34.3 34.3 38.0 27.3 90 43.1 43.1 43.1 43.1 45.1 34.1 41.7 41.7 41.7 41.7 43.3 34.3 39.7 39.7 39.7 39.7 41.3 34.7 37.3 37.3 37.3 37.3 38.6 34.4

85 95 105 115

Ambient Temperature (F)

Table PD-2 — Gross Cooling Capacities (MBH) 4 Ton Single/Three Phase WSC048A1, A3, A4, AW

Enter.

CFM Bulb 61 67 73 61 67 73 61 67 73 61 67 73 Airflow (F) MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC MBH SHC

1440

1600

1760

1920

Notes:

1. All capacities shown are gross and have not considered indoor fan heat. To obtain net cooling subtract indoor fan heat.

2. MBH = Total Gross Capacity

3. SHC = Sensible Heat Capacity

Dry Entering Wet Bulb (F)

75 45.9 38.6 52.2 29.8 55.3 20.0 42.3 36.5 49.6 28.8 54.2 19.0 38.5 34.5 45.8 26.5 52.4 17.8 34.7 32.5 41.5 25.0 49.5 16.4 80 47.0 46.5 52.4 37.2 55.9 27.7 43.6 43.6 49.8 35.9 54.7 26.7 40.5 40.5 45.9 34.0 52.6 25.3 37.3 37.3 41.8 32.0 49.6 23.9 85 50.1 50.1 52.8 44.4 56.6 34.0 47.4 47.4 50.2 43.4 55.0 33.4 44.3 44.3 46.6 41.6 52.9 32.8 41.1 41.1 42.5 39.6 49.8 31.3 90 52.9 52.9 53.6 51.5 57.2 40.3 50.9 50.9 51.3 51.1 55.5 40.2 48.1 48.1 48.1 48.1 53.2 39.8 45.0 45.0 45.0 45.0 50.0 38.7 75 47.2 41.1 52.9 31.1 55.7 20.3 43.5 39.1 50.6 29.8 54.7 19.3 39.7 37.0 46.9 28.0 52.9 18.2 35.8 35.0 42.6 25.9 50.3 16.9 80 48.7 48.7 53.2 38.9 56.4 28.2 45.7 45.7 50.8 38.0 55.2 27.7 42.5 42.5 47.1 36.2 53.3 26.5 39.2 39.2 42.9 34.2 50.4 25.1 85 51.9 51.9 53.7 46.6 57.1 34.9 49.6 49.6 51.4 46.3 55.6 34.6 46.5 46.5 47.9 44.7 53.5 34.3 43.2 43.2 44.0 42.7 50.6 33.2 90 54.4 54.4 54.7 54.1 57.8 41.6 52.7 52.7 52.7 52.7 56.1 41.9 50.3 50.3 50.3 50.3 54.0 42.0 47.3 47.3 47.3 47.3 51.0 41.2

75 48.3 43.5 53.3 32.0 56.0 20.6 44.6 41.5 51.3 31.1 55.0 19.6 40.8 39.5 47.7 29.4 53.4 18.5 36.8 36.8 43.4 27.3 50.9 17.2 80 50.4 50.4 53.8 40.4 56.7 28.6 47.6 47.6 51.5 40.0 55.7 28.4 44.3 44.3 48.1 38.4 53.8 27.5 40.9 40.9 43.9 36.4 51.1 26.2 85 53.3 53.3 54.5 48.6 57.5 35.6 51.3 51.3 52.3 48.8 56.3 36.1 48.4 48.4 49.2 47.7 54.1 35.7 45.1 45.1 45.1 45.1 51.3 35.0 90 55.5 55.5 55.5 55.5 58.2 42.8 54.1 54.1 54.1 54.1 56.7 43.4 52.0 52.0 52.0 52.0 54.7 43.9 49.2 49.2 49.2 49.2 51.8 43.6

75 49.3 45.8 53.8 32.9 56.3 20.9 45.7 43.9 51.8 32.3 55.3 20.0 41.9 41.9 48.5 30.7 53.7 18.9 38.1 38.1 44.1 28.6 51.3 17.6 80 51.7 51.7 54.3 41.7 57.0 29.1 49.1 49.1 52.2 41.7 56.0 28.9 45.9 45.9 48.9 40.5 54.1 28.2 42.4 42.4 44.8 38.5 51.6 27.2 85 54.3 54.3 55.1 50.3 57.8 36.4 52.6 52.6 53.1 51.1 56.7 37.1 50.0 50.0 50.0 50.0 54.6 37.0 46.8 46.8 46.8 46.8 51.8 36.6 90 56.3 56.3 56.3 56.3 58.5 43.8 55.1 55.1 55.1 55.1 57.1 44.7 53.2 53.2 53.2 53.2 55.2 45.7 50.7 50.7 50.7 50.7 52.5 45.8

85 95 105 115

Ambient Temperature (F)

PKGP-PRC0 03-EN

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Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Features and Benefits

Application Considerations

Model Number Description

General Data

Performance Data (3, 4 Ton)