Trane SCWF29, SCWF32, SCWF35, SCWF38, SIWF20 User Manual

...

Page 1

Commercial Self-Contained

IntelliPak® Signature Series 20-80 Ton Water-Cooled Air Conditioners 20-60 Ton Air-Cooled Air Conditioners Remote Air-Cooled Condensers

December 2001 PKG-PRC002-EN

Page 2

Introduction

Affordable Self-Contained Value from Trane…

Signature Series Self-Contained Units

Trane’s advanced technology brings unmatched reliability, high performance, and affordable cost!

Hinged and removable control

Waterside economizer (cleanable option shown)

2-inch flat filter box inside unit casing

Sight glasses with ports for viewing while unit is running

panel door for easy access

Unit mounted microprocessor control with easy-to-read human interface panel

Energy saving single fan with inlet guide vanes or

variable frequency drive

Internally trapped drain for low cost

installation

Waterside valve package option to enhance system efficiency

Two-bolt connection on cleanable condenser for quick, easy maintenance

Trane 3-D for reliability, efficiency and quiet operation

Scroll Compressor

PKG-PRC002-EN2

Page 3

Contents

Introduction 2

Features and Benefits 4

Application Considerations 8

Selection Procedure 12

Model Number Description 14

General Data 17

Performance Data 22

Airside Pressure Drops 22 Waterside Pressure Drops 29 Water-Cooled Units 31 Air-Cooled Units 60 Heating Coils 68

Controls 69

Electrical Data 79

Dimensions and Weights 81

Mechanical Specifications 95

Options 97

PKG-PRC002-EN 3

Page 4

Features and Benefits

Why consider the Signature Series self-contained floor-by-floor systems?

Improved Cash Management

• Factory-installed and tested options reduce field labor and installation risk, while improving system reliability

• Requires less sophisticated maintenance than built-up systems

Tenant Satisfaction

• Complete HVAC system on each floor minimizes tenant inconvenience during routine maintenance

• Tenants can control system after hours to increase productivity and minimize expense

Low First Cost

• Reduce field labor, installation time, and cost with factory packaged controls and piping

• Reduce installed tonnage up to 20 percent by taking advantage of building diversity and VAV flexibility

• Flexible air discharge arrangement matches most building configurations

Lower Installed Cost

• Single point power connection

• Single point water connection

• Factory commissioned and tested controls

• Factory installed options

• Internally trapped drain connection

Economical Operation

• Free cooling with waterside or airside economizer

• Energy savings with floor-by-floor system since only units on floors requiring cooling need to operate

• Significant annual energy consumption reduction due to partial occupancy after-hours, when compared to a central chilled water system

• Simple heating alternatives include perimeter radiation and fan-powered VAV

• Energy savings from the integrated water valve control using pump unloading

Assured Acoustical Performance

• Flexible, horizontal discharge plenum provides smooth airflow, reducing static pressure losses for optimum acoustical performance

• Multiple compressor design reduces acoustical levels. Scroll compressor design smooths gas flow for quieter operation

Indoor Air Quality (IAQ) Features

• Sloped drain pan

• Stainless steel sloped drain pan option

• Internally trapped drain connection

• Double wall construction option

• Matt-faced fiberglass insulation

• High efficiency throwaway filter option

• Easily cleanable evaporator, condensers, and waterside economizers

• Filter access door allows easy removal to encourage frequent filter changing

• Airside economizer with Traq™ damper allows direct measurement and control of outdoor air

Enhanced Serviceability

• Self-supporting removable panels

• Quick access service panel fasteners

• Eye level control/service center

• Refrigerant line sight glasses in view during operation

PKG-PRC002-EN4

Page 5

Features and Benefits

Standard Features

• 20 through 80 ton industrial/commercial water-cooled self-contained units

• 20 through 60 ton industrial/commercial remote air-cooled self-contained units

• Fully integrated, factory-installed, and commissioned microelectronic controls

• Unit mounted human interface panel with a two line x 40 character clear language (English, Spanish, or French) display and a 16-function keypad that includes custom, diagnostics, and service test mode menu keys

• Improved Trane 3-D

• Compressor lead/lag

• CV or VAV system control

• Low ambient compressor lockout adjustable control input

• FROSTAT units

• Daytime warmup (occupied mode) on units with heat and morning warmup operation on all units

• Supply air static overpressurization protection on units with inlet guide vanes or variable frequency drives (VFD’s)

• Supply airflow proving

• Supply air tempering control with heating option

• Supply air heating control on VAV with hydronic heating option

• Emergency stop input

• Mappable sensors and setpoint sources

• Occupied/unoccupied switching

• Timed override activation

• Refrigeration circuits are completely factory piped and tested on watercooled units

• Factory piped and tested, mechanically cleanable water-cooled condensers

• Two-bolt removable condenser waterboxes for quick and easy cleaning

• Sloped drain pans to ensure complete condensate removal for IAQ

• Internally trapped drain connection with cleanout

• Internally isolated centrifugal supply fan

• 14-gauge galvanized steel framework with easily removable painted exterior panels of 18-gauge galvanized steel

• UL listing on standard options

• Fan belts and grease lines are easily accessible

• Access panels and clearance provided to clean both evaporator and waterside economizer coil fins

™

coil frost protection on all

scroll compressor

• Condensing pressure control on all variable water flow systems with valves

• Programmable water purge during unoccupied mode

• High entering air temperature limit

• Low entering air temperature limit with waterside economizer or hydronic heat

Optional Features

• Trane communication interface module: ICS interface control module

• Generic BAS interface

• Comparative enthalpy control

• Ventilation override from up to five external inputs

• Remote human interface controls up to four units

• Fully integrated, factory-installed/ commissioned variable frequency drive control with or without optional integrated bypass

• Fully integrated, factory-installed and commissioned inlet guide vanes on FC supply fan

• Waterside economizer with factory installed piping and controls

• Waterside modulating condensing temperature control valves include factory installed piping and control wiring

• Removable cast iron headers on cleanable waterside economizer

• Flexible horizontal discharge plenum with or without factory cut holes

• Heating options include hot water, steam, and electric

• Refrigerant suction discharge line service (shut-off) valves

• Protective coatings for the unit and/or evaporator coils

• Double wall construction

• Stainless steel sloped drain pan

• Medium efficiency throwaway filters

• Through-the-door non-fused disconnect switch

• Trane’s air quality Traq airside economizer mixing box

• High duct temperature thermostat

• Dual electrical power connection

reset input

•CO

™

damper in

FC Fans With Inlet Guide Vanes

Trane’s forward-curved fans with inlet guide vanes pre-rotate the air in the direction of the fan wheel. This decreases static pressure and horsepower. The unloading characteristics of a Trane FC fan with inlet guide vanes results in superior part load performance.

Variable Frequency Drives (VFD)

Variable frequency drives are factory installed, wired, and tested to provide supply fan motor speed modulation. VFD’s are quieter and more efficient than inlet quide vanes and may even be eligible for utility rebates. The VFD’s are available with and without a manual integrated bypass option, controlled through the human interface (HI) panel. Bypass control provides full nominal airflow control to CV zone setpoints in the unlikely event of a drive failure by manually placing the drive in the bypass mode.

Field Installed Accessories

• Airside economizer control with or without mixing box

• Programmable sensors with or without night set back for CV and VAV systems

• ICS zone sensors used with Tracer system for zone control

• Field installed module kits available for field upgrade of controls

• Ultra low leak dampers for 0-100 percent modulating fresh air economizer

PKG-PRC002-EN 5

Page 6

Features and Benefits

Integrated Self-Contained Systems

Integrated Comfort™ System (ICS)

Trane’s Integrated Comfort (ICS) increases job control by combining IntelliPak

Signature Series selfcontained units and a Tracer management system. This integrated system provides total building comfort and control. Building owners and managers not only save energy when using ICS—they have the ability to automate their facilities and the convenience of a control system interface.

Simplifying The Comfort System

Trane’s designers combined new technology and innovation to bring you more system capabilities and flexibility. Our Integrated Comfort with HVAC equipment is easy to use, install, commission, and service.

Everything you need to know about your self-contained VAV system is available using Tracer

, Trane’s family of building automation products. Tracer software package that minimizes custom programming requirements and allows easy system setup and control using your personal computer. Operating data from all system components is readily available for evaluation. You can control, monitor, and service your facility—all from your personal computer.

The IntelliPak

self-contained unit, as part of Trane ICS, provides powerful maintenance monitoring, control, and reporting capabilities. Tracer self-contained unit in the appropriate operating mode for: system on/off, night setback, demand limiting, setpoint adjustment based on outside parameters and much more. You can monitor unit diagnostic conditions through Tracer such as: sensor failures, loss of supply airflow, and an inoperative refrigerant circuit.

™

system

building

™

system (ICS)

is a

places the

IntelliPak contained monitoring points available using Tracer

Signature Series self-

• Compressor on/off status

• Ventilation status

• Condenser water flow status

• Heat status

• Supply air pressure

• Supply air temperature

• Suction temperature of each circuit

• Entering economizer water temperature

• Zone temperature

• Entering condenser water temperature

• Supply air temperature reset signal

• Morning warmup sensor temperature

• Entering air temperature

Tracer control points for IntelliPak

Signature Series Self-Contained Units

• Cooling and heating setpoints

• VAV discharge air temperature setpoints

• Supply air pressure setpoint

• Cooling and heating enable/disable

• Air economizer enable/disable

• Airside economizer minimum position

• Unit priority shutdown

Commissioning, control, efficiency, and information…it simply all adds up to one reliable source…Trane.

PKG-PRC002-EN6

Page 7

Trane 3-D® Scroll Compressor

Simple Design with 70% Fewer Parts

Fewer parts than an equal capacity reciprocating compressor means significant reliability and efficiency benefits. The single orbiting scroll eliminates the need for pistons, connecting rods, wrist pins, and valves. Fewer parts lead to increased reliability. Fewer moving parts, less rotating mass, and less internal friction means greater efficiency than reciprocating compressors.

Patented 3-D Scroll Compliance

Trane 3-D scroll compliance provides important reliability and efficiency benefits. 3-D compliance allows the orbiting scrolls to touch in all three dimensions, forming a completely enclosed compression chamber that leads to increased efficiency. In addition, 3-D compliance means the orbiting scrolls only touch with enough force to create a seal— so there is no wear between the scroll plates. The fixed and orbiting scrolls are made of high strength cast iron—resulting in less thermal distortion, less leakage, and higher efficiencies. The most outstanding feature of the scroll compressor 3-D compliance is that slugging will not cause failure. In a reciprocating compressor, however, liquid or dirt can cause serious damage.

Low Torque Variation

The 3-D scroll compressor has a very smooth compression cycle with torque variations that are only 30 percent of that produced by a reciprocating compressor. This means the scroll compressor imposes very little stress on the motor for greater reliability. Low torque variation means reduced noise and vibration.

Suction Gas Cooled Motor

Compressor motor efficiency and reliability are further optimized with this design. Cool suction gas keeps the motor cooler for longer life and better efficiency.

Proven Design Through Testing and Research

With over twenty years of development and testing, Trane 3-D scroll compressors have undergone more than 400,000 hours of laboratory testing and field operation. This work combined with over 25 patents makes Trane the worldwide leader in air conditioning scroll compressor technology.

Features and Benefits

One of two matched scroll plates — the distinguishing feature of the scroll compressor.

The Chart above illustrates low torque variation of 3-D Scroll compressors as compared to a reciprocating compressor.

PKG-PRC002-EN 7

Page 8

Application

Self-Contained Acoustical Recommendations

Successful acoustical results are dependent on many system design factors.

Following are general acoustical recommendations. For more information, or if there is concern about a particular installation, contact a professional acoustical consultant.

Location and Orientation of the Mechanical Equipment Room

Locate the equipment room adjacent to stairwells, utility rooms, electrical closets, and rest rooms if possible (See figure below). This minimizes the acoustic effects and risk of workmanship or installation errors. Place the discharge and return air ductwork over these less acoustically sensitive areas, using vertical or horizontal fresh air shafts. Consult code requirements for fresh air and smoke purge constraints.

Considerations

Return Air Ductwork

Duct the return air into the mechanical equipment room. Connect ductwork to the unit if local code dictates. The return air ductwork must have an elbow inside the equipment room. This elbow will reduce sound transmissions through the return duct. Extend the ductwork from the elbow far enough to block the “line of sight” to the exterior of the equipment room. Use a minimum ductwork length of 15 feet to the equipment room exterior. Line the duct with two-inch, three-pound density insulation. Use multiple, small return ducts for better acoustical performance to the occupied space.

Supply Air Ductwork

Insulate the supply air duct with two-inch, three-pound density insulation. Extend this lining at least 15 feet out from the equipment room wall, keeping the duct aspect ratio as small as possible. Minimize large flat panels since they

Self-Contained

transmit sound. In addition, small aspect ratios will minimize potential “oil canning” of the duct due to flow turbulence.

The flexible horizontal discharge plenum option helps avoid complicated ductwork transitions. Ductwork turning vanes typically improve pressure drop but degrade acoustical performance.

Recommended Maximum Air Velocities

The maximum recommended velocity for the discharge air duct is 2,000 fpm. The maximum recommended velocity for the return air duct is 1,000 fpm. Limit air velocities below these operating points to minimize the risk of flow turbulence that causes regenerated noise. Using round supply duct and static regain allows maximum discharge air velocities up to 3,000 fpm. Lining round supply duct also substantially lowers frequency noise attenuation. However, flow regenerated noise potential increases dramatically at air velocities over 3000 fpm.

Equipment Room Location and Orientation

PKG-PRC002-EN8

Page 9

Application

Equipment Room Construction Options

The preferred equipment room wall construction is concrete block. If this is not feasible then a double stud offset wall is suggested (See figure). This removes physical contact that would transmit sound through the equipment room wall to the occupied space. Interweave fiberglass insulation between the wall studs. Use two layers of sheetrock on each side of the wall.

Workmanship details are critical to acoustical performance. Seal all wall and floor penetrations by the ductwork, water piping, and equipment room access doors with a flexible material such as caulk and/or gasketing to stop noise and air leaks.

Locate the equipment room door away from acoustically sensitive areas like conference rooms. The door should swing out of the equipment room, if possible, so that the low pressure in the equipment room pulls the door in to help maintain a tight seal.

Equipment Options

The flexible horizontal discharge plenum allows multiple tested outlet options. This minimizes the risk of acoustic and/or pressure drop problems by avoiding complex transitions close to the fan discharge.

Static Pressure Versus Acoustics

Design the system to minimize the total static pressure required from the selfcontained unit fan. Typically a change in static pressure of only 0.5 inches can reduce NC level by approximately 2 or 3 in the occupied space.

Isolation Recommendations

Unit

The Signature Series unit fan and compressors are internally isolated. Therefore, external isolation is not required. Consult a vibration specialist before considering external or double vibration isolation.

Ductwork

Design duct connections to the unit using a flexible material. Consult local codes for approved flexible duct material to prevent fire hazard potential.

Considerations

Double Stud Offset Wall with Interwoven Insulation

Piping Connections

Rubber isolator connectors are recommended for condenser piping to prevent vibration transmission to or from the building plumbing. The Signature Series self-contained unit is internally isolated and does not require additional isolation. However, ensure proper system vibration isolation design prevents vibration transmission from the building plumbing to the unit. Also be sure to properly isolate the drain line.

Condenser Water Piping

Piping Location and Arrangement

Provide at least 24 inches of clearance between the piping and the unit for service. Place the risers away from the side of the unit if possible. Be sure to allow sufficient space for valves and unions between the piping and the selfcontained unit. Lay out condenser piping in reverse returns to help balance the system. This is accomplished by equalizing the supply and return pipe length. Multi-story buildings may use a direct return system with balancing valves at each floor. Install all heat exchangers and most cooling tower piping below the sump operating water level to prevent overflow during unit and/ or system shut down.

Self-Contained

Free Cooling Opportunities and Alternatives

Free cooling is available with either the airside or waterside economizer options.

Waterside Economizer

The waterside economizer substantially reduces the compressor energy requirements because it uses the cooling water before it enters the condensers. Additional equipment room space is not required since the coils are contained within the overall unit dimensions.

Disadvantages include higher airside pressure drop and a higher head on condenser water pumps.

The coils may be mechanically cleanable (optional) for ease in maintenance versus expensive and difficult chemical cleaning methods.

Airside Economizer

The airside economizer substantially reduces compressor, cooling tower, and condenser water pump energy requirements using outside air for free cooling. It also reduces tower make up water needs and related water treatment.

Disadvantages include building requirements that locate the mechanical room and self-contained unit toward an exterior wall to minimize ductwork , building barometric control, or additional air shafts. Also, airside economizers require additional mechanical room space.

PKG-PRC002-EN 9

Page 10

Application

Recommended Pump Location

Locate pump downstream of the cooling tower and upstream of the self-contained unit. This provides smoother and more stable unit operation.

When the tower and pump are both roof mounted, be sure to provide the necessary net positive suction head pressure to prevent cavitation. Raise the tower or submerge the pump in a sump to provide positive suction. To prevent an on-line pump failure, use a standby pump to avoid a complete system shutdown. Several partial capacity pumps or variable speed pumps may be used. Review the economics of these alternate pumping options.

Strainers and Water Treatment

Water strainers are required at the unit inlet to eliminate potential unit damage from dirty water. Specify a water baskettype strainer to avoid an incorrect stream strainer application. Untreated or poorly treated water may result in equipment damage. Consult a water treatment specialist for treatment recommendations.

Isolation Valves

Install isolation valves at each unit before the strainer and after the condenser. This allows periodic servicing of the unit or

Waterside Economizer Piping

Considerations

strainer while allowing other units in the system to remain in operation.

Pressure Gauges

Install pressure gauges on the inlet and outlet of the self-contained unit. Select the gauge’s scale so that the unit design operating point is approximately midscale.

Thermometers

Install thermometers on the condenser water inlet and outlet lines to each unit for system analysis. Trane Company recommends using a thermometer temperature range of 40 to 140 F, using a 2 F temperature increment.

Drains

The unit condensate drain is internally trapped to offset the pressure differential that exists during fan operation. Install a trapped drain in the low point of the mechanical equipment room floor to collect water from cleaning operations.

Condensing Pressure Control (Water-Cooled condensers)

Often cold condensing water applications between 35 F (1.7 C) and 54 F (12.2 C) require a condensing pressure control valve. Any unit with variable-flow waterside valves can modulate water flow to maintain a user defined condensing temperature. However, to

Self-Contained

utilize this feature, the building water system must be capable of operating at reduced water flow rates through the self-contained units. It is imperative to install variable volume pumps or an external bypass in the water distribution system.

Waterside Economizer Flow Control

Units equipped with waterside economizer control valves can be set up for variable or constant water flow.

Use constant water flow

systems that are not capable of unloading water supply to the unit. The economizer and condenser valves will operate in complement to one another to provide continuous water flow.

Use variable water flow

flow systems that can take advantage of pump unloading for energy savings. Since non-cooling operation restricts water flow during part load economizing or condensing temperature control, it is imperative to install variable volume pumps or an external bypass in the water distribution system.

Unit Operating Limits

Airflow

The minimum recommended airflow for proper VAV system staging and temperature control is 35 percent of nominal design airflow. Adjusting VAV boxes with the appropriate minimum settings will prevent the self-contained unit from operating in a surge condition at airflows below this point. Continuous operation in a surge condition can cause fan failure. Reference General Data Tables on pages 17-20 for minimum airflow conditions.

Signature Series self-contained units use fixed pitch sheaves. Adjust air balancing by obtaining alternate fixed pitch sheave selections from the local Trane sales office.

Waterflow

Use 3 gpm/ton for optimum unit capacity and efficiency. Use 2.5 or 2 gpm/ton to reduce pump energy, cooling tower and piping costs. However, these reduced waterflows may impact unit capacity and efficiency by one or two percent. Consult General Data Tables on pages 17-20 for unit specific waterflow ranges.

setup on water

setup with water

PKG-PRC002-EN10

Page 11

Application

Air Cooled

Remote Air-Cooled Condenser

Unit Location

Unobstructed condenser airflow is essential to maintaining capacity and operating efficiency. When determining unit placement, give careful consideration to assure sufficient airflow across the condenser coils. Avoid these two detrimental conditions: warm air recirculation and coil starvation.

Both warm air recirculation and coil starvation cause reductions in unit efficiency and capacity because of the higher head pressure associated with them. In more severe cases, nuisance unit shutdowns will result from excessive head pressures.

Considerations

Clearance

Ensure vertical condenser air discharge is unobstructed. While it is difficult to predict the degree of warm air recirculation, a unit installed with a ceiling or other obstruction above it will experience a capacity reduction that will reduce the maximum ambient operation limit. Nuisance high head pressure tripouts may also occur.

The coil inlet must also be unobstructed. A unit installed closer than the minimum recommended distance to a wall or other vertical riser will experience a combination of coil starvation and warm air recirculation. This may result in unit capacity and efficiency reductions, as well as possible excessive head pressures. Reference the service clearance section on page 93 for recommended lateral distances.

Condenser

Ambient Limitations

Standard ambient control allows operation down to 45 F (7.2 C) with cycling of condenser fans. Units with the low ambient option are capable of starting and operating in ambient temperatures down to 0 F (-17.8 C). Optional low ambient units use a condenser fan damper arrangement that controls condenser capacity by modulating damper airflow in response to saturated condenser temperature.

Maximum ambient temperature operation of a standard condenser is 115 F (46.1 C). Operation at design ambient above 115 F can result in excessive head pressures. For applications above 115 F, contact the local Trane sales office.

PKG-PRC002-EN 11

Page 12

Selection Procedure

Following is a sample selection for a standard applied water-cooled selfcontained at particular operating conditions. Use Trane Official Product Selection System, TOPSS all final selections or contact your local Trane representative.

Unit Capacities

Determine entering air temperature dry bulb and wet bulb and entering water temperature.

Refer to the Performance Data section beginning on page 32 to find gross total and sensible capacity that best meets capacity requirements.

Apply the cfm correction factors from the capacity correction factor Table PD-1 on page 31 to determine gross total and gross sensible capacities at desired cfm.

Multiply condenser water delta T by the total capacity cfm correction factor to determine new condenser water delta T.

Using design cfm, determine static air pressure drops for accessories from the air pressure drop Charts PD-1 through PD-18. Add accessory static pressure drops to external supply and return static air pressure drops. Use the total air pressure drop to determine rpm and brake horsepower requirements from the appropriate fan curve. Note: The fan curves include refrigerant coil and internal cabinet static loses.

Calculate supply fan motor heat by using the following equation: Fan motor heat (MBh) = 2.8 x fan motor brake horsepower

Determine net total capacity and net sensible capacity by subtracting fan motor heat from gross total capacity and gross sensible capacity.

™

, for making

Self-Contained

Refer to Trane psychometric chart to determine leaving air temperatures.

Waterside Economizer Capacity

After determining that the unit will meet the required mechanical cooling capacity, determine the waterside economizer capacity by referring to the appropriate two-row (low capacity) or four-row (high capacity) waterside economizer capacity tables on pages 32-58.

Determine entering air temperature dry bulb and wet bulb, condenser water flow (gpm), and economizer entering water temperature.

Refer to the appropriate waterside economizer table to find gross total and sensible capacity and the leaving water temperature.

Apply the cfm correction factor for the waterside economizer from the appropriate table to determine the gross total and sensible capacities at the desired cfm.

Multiply the condenser water delta T by the total capacity cfm correction factor to determine the new delta T.

Calculate supply fan motor heat by using the following equation: Fan motor heat (MBh) = 2.8 x fan motor brake horsepower

Determine net total and sensible capacity by subtracting fan motor heat from gross total and sensible capacity.

Refer to the Trane psychometric chart to determine leaving air temperatures.

PKG-PRC002-EN12

Page 13

Selection

Selection Example

Design Conditions

Total gross capacity required =

420 MBh = 35.2 Tons

Total sensible capacity required =

315 MBh Entering air temperature = 80/67 Entering water temperature = 85 Water flowrate = 105 gpm Airflow = 14840 cfm at 2.5-inch

duct static pressure

Unit includes:

Inlet guide vanes

Waterside economizer

Medium velocity throwaway filters

Unit Selection

Tentatively select a 35 ton unit Model SCWF 35. Refer to Table PD-19 on page 43 to obtain gross total and sensible unit capacities, and gpm at the design conditions:

Total capacity = 419.0 MBh

Sensible capacity = 309.0 MBh

Leaving water temperature = 94.7 F

Since the design cfm is greater than the nominal cfm, adjust the capacities and condenser water delta T to reflect the higher cfm:

design cfm 14840 = +6% of nom. cfm

nominal 14000

cfm

Procedure

Refer to Table PD-1 on page 31 to obtain the capacity correction factors for +6% of nominal cfm: Cooling capacity multiplier = 1.009 Sensible capacity multiplier = 1.027

Multiply the capacities by the correction factors:

419 MBh x 1.009 = 422.8 MBh

309 MBh x 1.027 = 317.3 MBh The SCWF 35 meets the total and sensible design requirements.

Multiply the delta T of 9.7 F, by the cooling capacity correction factor of 1.009 to obtain new delta T of 9.79 and add this to the entering water temperature to obtain the actual leaving water temperature of

94.79 F.

Determine static air pressure drops through the accessories at the design cfm from Chart PD-3 on page 22: 4-row waterside economizer = 0.37 in. Medium velocity filters = 0.28 in. add this to the 2.5 inch duct static pressure for a total external static pressure of 3.15 inches.

Refer to the fan curve with inlet guide vanes, Chart PD-38 on page 43, to determine approximate brake horsepower and fan rpm:

Fan brake horsepower = 16 bhp

Fan rpm = 1020 rpm

Self-Contained

Determine net capacities by subtracting fan motor heat from gross capacities:

2.8 x 16 bhp = 44.8 MBh Net total capacity = 422.8 MBh -

44.8 MBh = 378.0 MBh

Net sensible capacity = 317.3 MBh -

44.8 MBh = 272.5 MBh

Determine waterside economizer capacity by referring to Table PD-17 on page 42. Use entering air of 80/67 and entering water temperature of 55 deg F at 105 gpm. The table provides a gross total capacity of 282.1 MBh and gross sensible capacity of 277.2 MBh and

60.4 deg F leaving water temperature at nominal cfm.

Determine gross capacities at design cfm by applying the cfm correction factors from waterside economizer from Table PD-1 on page 31. Use the following correction factors:

282.1 MBh x 1.009 = 284.6 MBh

277.2 MBh x 1.027 = 284.7 MBh

Apply the cooling correction factor to water delta T to determine new delta T of

5.45 F.

Determine net capacities by subtracting fan motor heat for net total capacity of

239.8 MBh and net sensible capacities of

239.9 MBh.

PKG-PRC002-EN 13

Page 14

Selection

Model Number

Procedure

Description

Self-Contained Model Number Description

S C W F N 20 4 2 BO A B 2 10 065 B A 1 0 1 0 A A C F A 1 1 0 T 2 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

Digit 1 - Unit Model

S = Self Contained

Digit 2 - Unit Type

C = Commercial I = Industrial

Digit 3 - Condenser Medium

W = Water-Cooled R = Air-Cooled

Digit 4 - Development Sequence

F = Signature Series

Digit 5 - Refrigerant Circuit Configuration

N = Independent (Water-Cooled) M = Manifolded (30, 35, 40, 50, 60-Ton AirCooled Only)

Digit 6, 7 - Unit Nominal Capacity

20 = 20 Tons (Water or Air) 22 = 22 Tons (Water Only) 25 = 25 Tons (Water or Air) 29 = 29 Tons (Water or Air) 30 = 30 Tons (Air Only) 32 = 32 Tons (Water Only) 35 = 35 Tons (Water or Air) 38 = 38 Tons (Water Only) 40 = 40 Tons (Air Only) 42 = 42 Tons (Water Only) 46 = 46 Tons (Water Only) 50 = 50 Tons (Air Only) 52 = 52 Tons (Water Only) 58 = 58 Tons (Water Only) 60 = 60 Tons (Air Only) 65 = 65 Tons (Water Only) 72 = 72 Tons (Water Only) 80 = 80 Tons (Water Only)

Digit 8 - Unit Voltage

6 = 200 Volt/60 Hz/3 ph 4 = 460 Volt/60 Hz/3 ph 5 = 575 Volt/60 Hz/3 ph

Digit 9 - Air Volume/Temp Control

1 = IGV and Supply Air Temp Ctrl 2 = VFD and Supply Air Temp Ctrl 3 = VFD w/ Bypass and Supply

Air Temp Ctrl 4 = w/o Vol. CTRL, w/ Zone Temp Cool 5 = w/o Vol. CTRL, w/ Zone Temp

Heat/Cool 6 = w/o Vol. CTRL and Supply Air

Temp Ctrl

Digit 10, 11 - Design Sequence

BO = “B” Design

Digit 12 - Unit Construction

A = Vertical Discharge B = Vertical Discharge with Double Wall

Digit 13 - Flexible Horizontal Discharge Plenum Type

B = Std Plenum w/ Factory Cut Holes C = Low Plenum w/ Factory Cut Holes E = Std Plenum w/ Field Cut Holes F = Low Plenum w/ Field Cut Holes H = Std Plenum Double wall

w/ Field Cut Holes

J = Low Plenum Double wall

w/ Field Cut Holes

K = 45” Plenum w/Factory Cut Holes,

Ship Separate

L = Std Plenum w/Factory Cut Holes,

Ship Separate

M = Low Plenum w/Factory Cut Holes,

Ship Separate

N = 45” Plenum w/Field ut Holes, Ship

Separate

P = Std Plenum w/Field Cut Holes, Ship

Separate

R = Low Plenum w/Field Cut Holes, Ship

Separate

T = 45” Double Wall Plenum w/Field Cut

Holes, Ship Separate

U = Std Double Wall Plenum w/Field Cut

Holes, Ship Separate

V = Low Double Wall Plenum w/Field

Cut Holes, Ship Separate

0 = None

Digit 14 - Motor Type

1 = Std Eff. ODP Motor 2 = Premium Eff. ODP Motor 3 = Totally Enclosed Motor

Digit 15, 16 - Motor HP

05 = 5 HP Motor 07 = 7.5 HP Motor 10 = 10 HP Motor 15 = 15 HP Motor 20 = 20 HP Motor 25 = 25 HP Motor 30 = 30 HP Motor 40 = 40 HP Motor 50 = 50 HP Motor (460V & 575V Only)

Digit 17, 18, 19 - Fan RPM

040 = 400 rpm 045 = 450 rpm 050 = 500 rpm 055 = 550 rpm 060 = 600 rpm 065 = 650 rpm 070 = 700 rpm 075 = 750 rpm 080 = 800 rpm 085 = 850 rpm 090 = 900 rpm 095 = 950 rpm 100 = 1000 rpm 105 = 1050 rpm 110 = 1100 rpm 115 = 1150 rpm 120 = 1200 rpm 125 = 1250 rpm 130 = 1300 rpm 135 = 1350 rpm 140 = 1400 rpm 145 = 1450 rpm 150 = 1500 rpm

Digit 20 - Heating Type

A = Steam Coil B = Hot Water Coil C = Electric Heat (1 Stage) F = Hydronic Heat Ctrl Interface G = Elec. Heat Ctrl Interface (1 stage) K = Steam Coil Ship Separate L = Hot Water Coil Ship Separate 0 = Without Heat

Digit 21 - Unit Isolators

A = Isopads B = Spring Isolators 0 = None

Digit 22 - Unit Finish

1 = Paint - Executive Beige 2 = Protective Coating 3 = Protective Coating w/ Finish Coat

Digit 23 - Future Use

0 = None

Digit 24 - Unit Connection

1 = Disconnect Switch 2 = Terminal Block 3 = Dual Point Power (2 Blocks)

PKG-PRC002-EN14

Page 15

Selection

Model Number

Self-Contained Model Number Continued —

Digit 25 - Industrial Options

A = Protective Coating Evaporator Coil B = Silver Solder C = Stainless Steel Screws D = A and B E = A and C F = B and C G = A, B, and C 0 = None

Digit 26 - Drain Pan Type

A = Galvanized Sloped B = Stainless Steel Sloped

Digit 27 - Waterside Economizer

A = Mechanical Clean Full Capacity (4-row) B = Mechanical Clean Low Capacity (2-row) C = Chemical Clean Full Capacity (4-row) D = Chemical Clean Low Capacity (2-row) 0 = None

Digit 28 - Ventilation Control

B = Airside Econ w/ Traq

(Top O/A)

C = Airside Econ w/ Standard

Damper (Top O/A)

E = Airside Econ w/ Traq

Comparative Enthalpy (Top O/A)

F = Airside Econ w/ Standard Damper and

Comparative Enthalpy (Top O/A) H = None, 2-Position Damper Ventilation Interface J = Airside Economizer Interface K = Airside Economizer Interface w/ Comparative Enthalpy

™

Damper

™

Damper and

Procedure

Digit 29 - Water Piping

D = Left Hand Basic Piping F = Left Hand Intermediate Piping K = Left Hand Basic w/ Flow Switch M = Left Hand Intermediate

w/ Flow Switch

0 = None

Digit 30 - Condenser Tube Type

A = Standard Condenser Tubes B = 90/10 CuNi Condenser Tubes 0 = None (Air-cooled Only)

Digit 31 - Compressor Service Valves

1 = With Service Valves 0 = None

Digit 32 - Miscellaneous System Control

1 = Timeclock 2 = Interface for Remote HI (IPCB) 3 = Dirty Filter Switch 4 = 1 and 2 5 = 1 and 3 6 = 2 and 3 7 = 1, 2 and 3 0 = None

Digit 33 - Control Interface Options

A = Generic BAS Module (GBAS) B = Ventilation Override Module

(VOM)

C = Tracer Comm. Interface Module

(TCI) D = Remote Human Interface (RHI) E = GBAS and TCI F = VOM and TCI G = GBAS and VOM

Description

H = GBAS and RHI J = VOM and RHI K = TCI and RHI L = GBAS, VOM, and TCI M = GBAS, VOM, and RHI N = GBAS, TCI, and RHI P = VOM, TCI, and RHI R = GBAS, VOM, TCI, and RHI 0 = None

Digit 34 - Agency

T = UL Agency Listing 0 = None

Digit 35 - Filter Type

1 = Construction Throwaway 2 = Med Eff. Throwaway

Digit 36 - Miscellaneous Control Option

A = Low Entering Air Temp. Protect

Device (LEATPD)

B = High Duct Temp T-Stat

(Ship Separate)

C = Plenum High Static Switch

(Ship Separate) E = A and B F = A and C H = B and C L = A, B, and C 0 = None

Self-Contained Accessory Model Number Description

P S W F S A 1 1 0 AO 1 2 3 4 5 6 7 8 9 10 11 Digit 1 - Parts/Accessories

P = Parts/Accessories

Digit 2 - Unit Model

S= Self-Contained

Digit 3 - Shipment

W = With Unit

Digit 4 - Development Sequence

F = Signature Series G = Modular Series

Digit 5 - Sensors and Other Accessories

S = Sensors

Digit 6 - Sensors (Field Installed)

A = BAYSENS017 - Zone Temp Only (CV and VAV) B = BAYSENS013 - Zone Temp with Timed Override Button (CV and VAV)

PKG-PRC002-EN 15

C = BAYSENS014 - Zone Temp with Timed Override Button, Setpoint Dial (CV and VAV) E = BAYSENS008 - CV Zone Sensor F = BAYSENS010 - CV Zone Sensor with Indicator Lights G = BAYSENS019 - CV Programmable Night Setback Sensor H = BAYSENS021 - VAV Zone Sensor with Indicator Lights J = BAYSENS020 - VAV Programmable Night Setback Sensor K = Remote Sensor Kit L = Outside Air Temperature Sensor Kit M = Outside Air Humidity Sensor Kit 0 = None

Digit 7 - Low Entering Air Temperature Protection Device (Field Installed)

1 = Low Entering Air Tempeature Protection Device 0 = None

Digit 8 - Carbon Dioxide Sensor (field installed)

1 = Carbon Dioxide Sensor Kit 0 = None

Digit 9 - Not Used

0 = None

Digit 10, 11 - Design Sequence

A0 = A Design

Page 16

Selection

Model Number

Procedure

Description

Remote Air-Cooled Condenser Model Number Description

C C R C 020 4 A AO 1 A 0 0 T

1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 5 16

Digit 1 - Unit Model

C = Condenser

Digit 2 - Unit Type

C = Commercial I = Industrial

Digit 3 - Condenser Medium

R = Remote

Digit 4 - Development Sequence

C = C

Digit 5, 6, 7 - Nominal Capacity

020 = 20 Tons 029 = 29 Tons 035 = 35 Tons 040 = 40 Tons 050 = 50 Tons 060 = 60 Tons

Digit 8 - Unit Voltage

4 = 460 Volt/60 Hz/3 ph 5 = 575 Volt/60 Hz/3 ph 6 = 200 Volt/60 Hz/3 ph

Digit 9 - Control Option

0 = No Low Ambient Damper, I-Pak. A = No Low Ambient Damper, T-Stat. B = Low Ambient, I-Pak. C = Low Ambient, T-Stat.

Digit 10, 11 - Design Sequence

AO = “A” Design Sequence

Digit 12 - Unit Finish

1 = Paint (Executive Beige) 2 = Protective Coating

3 = Protective Coating with

Finish Coat

Digit 13 - Coil Options

A = Non-Coated Aluminum C = Protective Coating Aluminum

Digit 14 - Unit Isolators

0 = None A = Spring Isolators B = Isopads

Digit 15 - Panels

0 = None 1 = Louvered Panels

Digit 16 - Agency Listing

0 = None U = With UL Listing

PKG-PRC002-EN16

Page 17

SCWF/SIWF

General Data

20-38 Tons

Table GD-1. SCWF/SIWF Water-Cooled Self-Contained, 20-38 Tons

Unit Size 2 0 2 2 2 5 2 9 3 2 3 5 3 8 Compressor Data

Quantity 2 2 2 1/1 1/1 3 3 NominalTon/Comp 10 10 10 15/10 15/10 10 10 Circuits 2 222233

Evaporator Coil Data

Rows 2 232434 Sq. Ft. 21.81 21.81 21.81 29.98 29.98 31.35 31.35 Sq. m (2.03) (2.03) (2.03) (2.79) (2.79) (2.91) (2.91) FPF 144 144 144 144 144 120 144

Condenser Data

Minimum GPM w/o Econ 3 6 36 36 46 46 54 54 Minimum liters / sec. w/o Econ (2.27) (2.27) (2.27) (2.9) (2.9) (3.41) (3.41) Minimum GPM w/ Econ 41 41 41 60 60 65 65 Minimum liters / sec. w/ Econ (2.59) (2.59) (2.59) (3.79) (3.79) (4.1) (4.1) Maximum GPM 80 8 0 80 102 102 119 119 Maximum liters / sec. (5.05) (5.05) (5.05) (6.44) (6.44) (7.51) (7.51)

Evaporator Fan Data

Quantity 1 111111 Size (Dia. - inches) 16.5" 16.5" 16.5" 18.25" 18.25" 20" 20" Size (Dia. - mm) (419.1) (419.1) (419.1) (463.6) (463.6) (508) (508) Minimum HP 5 555555 Minimum kW (3.73) (3.73) (3.73) (3.73) (3.73) (3.73) (3.73) Maximum HP 20 20 20 25 25 2 5 25 Maximum kW (14.91) (14.91) (14.91) (18.64) (18.64) (18.64) (18.64) Minimum Design CFM 6325 6325 6500 8700 8700 9100 9880 Minimum Design liter / sec. (2985) (2985) (3068) (4106) (4106) (4295) (4663) Maximum Design CFM 8500 9350 10625 12325 13600 14875 16150 Maximum Design liter / sec. (4012) (4413) (5014) (5817) (6418) (7020) (7622)

General Data

EER 12.9 12.6 13.4 14.1 13.6 13.3 13.4 IPLV 13.6 12.9 13.6 14.5 13.0 12.8 12.4

Refrigerant Charge - lbs. R-22

Circuit A 24 24 24 28 30 24 25 Circuit B 24 24 24 24 25 24 25 Circuit C - ----2425 Refrigerant Charge - kg R-22 Circuit A (10.9) (10.9) (10.9) (12.7) (13.6) (10.9) (11.3) Circuit B (10.9) (10.9) (10.9) (10.9) (11.3) (10.9) (11.3) Circuit C - ----(10.9) (11.3) Capacity Steps - % 100/53/0 100/53/0 100/53/0 100/62/39/0 100/59/39/0 100/65/31/0 100/65/30/0

Filter Data

Quantity 8 888888 Size (inches ) 20x18x2 20x18x2 20x18x2 20x18x2 20x18x2 20x18x2 20x18x2 Size (mm) (508 X 457 X 51) (508 X 457 X 51) (508 X 457 X 51) (508 X 457 X 51) (508 X 457 X 51) (508 X 457 X 51) (508 X 457 X 51) Quantity 4 444444 Size (inches ) 20x20x2 20x20x2 20x20x2 20x20x2 20x20x2 20x20x2 20x20x2 Size (mm) (508 X 508 X 51) (508 X 508 X 51) (508 X 508 X 51) (508 X 508 X 51) (508 X 508 X 51) (508 X 508 X 51) (508 X 508 X 51)

Notes:

1. Compressors are Trane 3D® scroll.

2. EER and IPV are rated in accordance to the ARI Standard 340/360-93. Based on 80/67 F (26.7/19.4 C) to the evaporator coil, nominal airflow and 85-95 F (29.4/35 C) condenser water.

3. All units operate with R-22. Units ships with full operating charge.

4. Maximum cfm limits are set to prevent moisture carryover on the evaporator coil.

5. Minimum cfm limits are set to ensure stable thermal expansion valve operation at low load conditions.

6. Filter sizes are for units without hot water or steam heating coils.

PKG-PRC002-EN 17

Table GD-2. SCWF/SIWF Refrigerant Circuits, Number of Compressors by Circuit

Unit Size 20/22/25 Ton 1- 10T 1- 10T

29/32 Ton 1- 15T 1- 10T

35/38 Ton 1- 10T 1- 10T 1- 10T

42/46 Ton 1- 15T 1- 10T 1- 10T

52/58 Ton 1- 15T 1- 15T 1- 15T

60/72 Ton 1- 15T 1- 15T 1- 15T 1- 10T

80 Ton 1- 15T 1- 15T 1- 15T 1- 15T

Note: This table depicts compressor location in unit, plan

view from left corner.

Circuit 1 2 3 4

Page 18

SCWF/SIWF

General Data

42-80 Tons

Table GD-3. SCWF/SIWF Water-Cooled Self-Contained, 42-80 Tons

Unit Size 4 2 4 6 5 2 5 8 6 5 7 2 8 0 Compressor Data

Quantity 2/1 2/1 3 3 3/1 3/1 4 NominalTon/Comp 10/15 10/15 15 15 15/10 15/10 15 Circuits 3 333444

Evaporator Coil Data

Rows 3 424346 Sq. Ft. 38.57 38.57 49.09 49.09 49.09 49.09 49.09 Sq. m (3.58) (3.58) (4.56) (4.56) (4.56) (4.56) (4.56) FPF 144 144 144 144 144 144 144

Condenser Data

Minium GPM w/o Econ 64 64 84 84 102 102 112 Minium liters / sec. w/o Econ (4.04) (4.04) (5.3) (5.3) (6.43) (6.43) (7.07) Minimum GPM w/ Econ 64 64 84 84 102 102 112 Minium liters / sec. w/ Econ (4.04) (4.04) (5.3) (5.3) (6.43) (6.43) (7.07) Maximum GPM 142 142 186 186 226 226 248 Maximum liters / sec. (8.96) (8.96) (11.73) (11.73) (14.26) (14.26) (15.65)

Evaporator Fan Data

Quantity 1 111111 Size (Dia. - inches) 25" 25" 25" 25" 27.5" 27.5" 27.5" Size (Dia. - mm) (635) (635) (635) (635) (698.5) (698.5) (698.5) Minimum HP 7.5 7. 5 1 0 10 10 10 1 0 Minimum kW (5.59) (5.59) (7.46) (7.46) (7.46) (7.46) (7.46) Maximum HP 30 30 50 50 50 5 0 50 Maximum kW (22.37) (22.37) (37.29) (37.29) (37.29) (37.29) (37.29) Minimum Design CFM 11200 11960 14250 15080 16900 18700 20800 Minimum Design liter / sec. (5286) (5645) (6725) (7117) (7976) (8825) (9817) Maximum Design CFM 17850 19550 22100 24650 27625 29800 29800 Maximum Design liter / sec. (8424) (9227) (10430) (11634) (13038) (14064) (14064)

General Data

EER 14.1 14.2 13.1 13.5 13.1 13.0 13.0 IPLV 13.9 13.6 12.9 12.5 12.4 11.8 11.4

Refrigerant Charge - lbs. R-22

Circuit A 28 30 28 30 28 30 32 Circuit B 24 25 28 30 28 30 32 Circuit C 24 25 28 30 28 30 32 Circuit D - - - - 24 25 32 Refrigerant Charge - kg R-22 Circuit A (12.7) (13.6) (12.7) (13.6) (12.7) (13.6) (14.5) Circuit B (10.9) (11.3) (12.7) (13.6) (12.7) (13.6) (14.5) Circuit C (10.9) (11.3) (12.7) (13.6) (12.7) (13.6) (14.5) Circuit D - - - - (10.9) (11.3) (14.5) Capacity Steps - % 100/71/43/26/0 100/70/41/30/0 100/65/32/0 100/65/30/0 100/71/44/24/0 100/71/43/23/0 100/73/46/20/0

Filter Data

Quantity 4 444444 Size (inches ) 16x20x2 16x20x2 16x20x2 16x20x2 16x20x2 16x20x2 16x20x2 Size (mm) (406 X 508 X 51) (406 X 508 X 51) (406 X 508 X 51) (406 X 508 X 51) (406 X 508 X 51) (406 X 508 X 51) (406 X 508 X 51) Quantity 8 888888 Size (inches ) 16x25x2 16x25x2 16x25x2 16x25x2 16x25x2 16x25x2 16x25x2 Size (mm) (406 X 635 X 51) (406 X 635 X 51) (406 X 635 X 51) (406 X 635 X 51) (406 X 635 X 51) (406 X 635 X 51) (406 X 635 X 51) Quantity 2 222222 Size 20x20x2 20x20x2 20x20x2 20x20x2 20x20x2 20x20x2 20x20x2 Size (mm) (508 X 508 X 51) (508 X 508 X 51) (508 X 508 X 51) (508 X 508 X 51) (508 X 508 X 51) (508 X 508 X 51) (508 X 508 X 51) Quantity 4 444444 Size 20x25x2 20x25x2 20x25x2 20x25x2 20x25x2 20x25x2 20x25x2 Size (mm) (508 X 635 X 51) (508 X 635 X 51) (508 X 635 X 51) (508 X 635 X 51) (508 X 635 X 51) (508 X 635 X 51) (508 X 635 X 51)

Notes:

1. Compressors are Trane 3D® scroll.

2. EER and IPV are rated in accordance to the ARI Standard 340/360-93. Based on 80/67 F (26.7/19.4 C) to the evaporator coil, nominal airflow and 85-95 F (29.4/35 C) condenser water.

3. All units operate with R-22. Units ships with full operating charge.

4. Maximum cfm limits are set to prevent moisture carryover on the evaporator coil.

5. Minimum cfm limits are set to ensure stable thermal expansion valve operation at low load conditions.

6. Filter sizes are for units without hot water or steam heating coils

PKG-PRC002-EN18

Page 19

SCRF/SIRF

General Data

20-60 Tons

Table GD-4. SCRF/SIRF Air-Cooled Self-Contained

Unit Size 2 0 2 5 2 9 30 35 40 50 60 Compressor Data

Quantity 2 1/1 1/1 3 3 2/1 3 4 NominalTon/Comp 10 15/10 15/10 10 10 10/15 15 15 Circuits 2 2 2 2 2 2 2 2

Evaporator Coil Data

Rows 3 2 4 3 4 4 4 6 Sq. Ft. 21.81 29.98 29.98 31.35 31.35 38.57 49.09 49.09 Sq. m (2.03) (2.79) (2.79) (2.91) (2.91) (3.58) (4.56) (4.56) FPF 144 144 144 120 144 144 144 144

Evaporator Fan Data

Quantity 1 1 1 1 1 1 1 1 Size (Dia. - inches) 16.5" 18.25" 18.25" 20" 20" 25" 25" 27.5" Size (Dia. - mm) (419.1) (463.6) (463.6) (508) (508) (635) (635) (698.5) Minimum HP 5 5 5 5 5 7 .5 10 10 Minimum kW (3.73) (3.73) (3.73) (3.73) (3.73) (5.59) (7.46) (7.46) Maximum HP 20 25 25 25 25 40 40 50 Maximum kW (14.91) (18.64) (18.64) (18.64) (18.64) (22.37) (37.29) (37.29) Minimum Design CFM 6500 8700 8700 9100 9880 11960 15080 20800 Minimum Design liters / sec. (3068) (4106) (4106) (4295) (4663) (5645) (7117) (9817) Maximum Design CFM 10625 12325 13600 14875 16150 19550 24650 29800 Maximum Design liters / sec. (5014) (5817) (6418) (7020) (7622) (9227) (11634) (14064)

General Data

EER 10.8 10.8 10.8 11.0 11.2 11.3 10.8 9.9 IPLV 11.8 12.1 11.4 12.8 12.6 12.5 12.0 10.0

Refrigerant Charge - lbs. R-22 57.2 66.7 72 57 57.2 66.7 7 2 72

Refrigerant Charge - kg R-22 (25.9) (30.3) (32.7) (25.9) (25.9) (30.3) (32.7) (32.7) Capacity Steps - % 100/53/0 100/62/39/0 100/59/39/0 100/65/31/0 100/65/30/0 100/70/41/30/0 100/65/30/0 100/73/46/20/0

Filter Data

Quantity 8 8 8 8 8 4 4 4 Size (inches ) 20x18x2 20x18x2 20x18x2 20x18x2 20x18x2 16x20x2 16x20x2 16x20x2 Size (mm) (508x457x51) (508x457x51) (508x457x51) (508x457x51) (508x457x51) (406x508x51) (406x508x51) (406x508x51) Quantity 4 4 4 4 4 8 8 8 Size (inches ) 20x20x2 20x20x2 20x20x2 20x20x2 20x20x2 16x25x2 16x25x2 16x25x2 Size (mm) (508x508x51) (508x508x51) (508x508x51) (508x508x51) (508x508x51) (406x635x51) (406x635x51) (406x635x51) Quantity 222 Size (inches) 20x20x2 20x20x2 20x20x2 Size (mm) (508x508x51) (508x508x51) (508x508x51) Quantity 444 Size 20x25x2 20x25x2 20x25x2 Size (mm) (508x635x51) (508x635x51) (508x635x51)

CCRC/CIRC Unit Match 20 29 29 35 35 40 50 60

Notes:

1. Compressors are Trane 3D® scroll.

2. EER and IPLV are rated in accordance to the ARI Standard 340/360-93. Based on 80/67 F (26.7/19.4 C) to the evaporator coil, nominal airflow and 95 F (35 C) ambient.

3. All units operate with R-22. Units ships with a dry nitrogen holding charge.

4. Maximum cfm limits are set to prevent moisture carryover on the evaporator coil.

5. Minimum cfm limits are set to ensure stable thermal expansion valve operation at low load conditions.

6. Filter sizes are for units without hot water or steam heating coils

PKG-PRC002-EN 19

Table GD-5. SCRF/SIRF Refrigerant Circuits, Number of Compressors by Circuit

Unit Size 20 Ton 1-10T 1- 10T

25/29 Ton 1-15T 1-10T

30/35 Ton 2-10T 1-10T

40 Ton 1- 10T, 1- 15T 1-15T

50 Ton 2-15T 1-15T

60 Ton 2-15T 2-15T

Note: This table depicts compressor location in unit, plan

view from left corner

Circuit 1 2

Page 20

General Data

CCRC/CIRC

Table GD-6. CCRC/CIRC Remote Air-Cooled Condenser

Unit Size 2 0 2 9 3 5 4 0 5 0 6 0 Gross Heat Rejection (MBH) 493 53 8 640 725 1040 1122 Gross Heat Rejection (kW) (144.5) (157.7) (187.6) (212.5) (304.8) (328.8) Condenser Fan Data

Number/Type 4/Prop 4/Prop 6/Prop 6/Prop 8/Prop 8/Prop Size (inches) 26 26 26 26 26 26 Size (mm) (660.4) (660.4) (660.4) (660.4) (660.4) (660.4) Fan Drive Direct Direct Direct Direct Direct Direct No. of Motors/HP ea. 4/1 4/1 6/1 6/1 8/1 8/1 Nominal CFM 18,800 21,200 35,600 39,800 46,200 56,400 Nominal (liters / sec) (8873) (10005) (16801) (18784) (21804) (26618)

Condenser Coil Data

Circuit 1 Size (in.) 1/46x71 1/64x71 2/46x71 2/46x71 2/64x71 2/64x71 Circuit 1 Size (mm) (1/1168x1803) (1/1626x1803) (2/1168x1803) (2/1168x1803) (2/1626x1803) (2/1626x1803) Circuit 2 No./Size (in.) 1/46x71 1/46x71 1/46x71 1/64x71 1/64x71 2/64x71 Circuit 2 No./Size (mm) (1/1168x1803) (1/1168x1803) (1/1168x1803) (1/1626x1803) (1/1626x1803) (2/1626x1803) Face Area (sq. ft.) 45.4 54.2 68 76.9 94.7 126.2 Face Area (sq.m) (4.2) (5) (6.3) (7.1) (8.8) (11.7) Rows/fpf 4/144 4/144 4/144 4/144 4/144 4/144

Ambient Temperature Operating Range

Standard Ambient (F) 50-115 50-115 50-115 50-115 50-115 50-115 Standard Ambient (C) (10 - 46.1) (10 - 46.1) (10 - 46.1) (10 - 46.1) (10 - 46.1) (10 - 46.1) Low Ambient Option (F) 0-115 0-115 0-115 0-115 0-115 0-115 Low Ambient Option (C) (-17.8 - 46.1) (-17.8 - 46.1) (-17.8 - 46.1) (-17.8 - 46.1) (-17.8 - 46.1) (-17.8 - 46.1)

Notes:

1. Gross Heat Rejection is at a 20 F (-6.7 C) ITD (Initial Temperature Difference) between condensing temperature and ambient air entering condenser (includes the effect of subcooling).

2. Operating charge is for entire unit, including 100 feet of interconnecting piping.

3. At conditions of 95 F (35 C), condenser is 95 percent full.

Table GD-7. SCRF/SIRF Air–Cooled Self–Contained and CCRC/CIRC Remote Air-Cooled Condenser

Unit Size 2 0 2 9 3 5 4 0 5 0 6 0 Refrigerant Circuit General Data

No. of Refrigerant Circuits 2 2 2 2 2 2 Operating Charge - lbs. R-22 36/36 58/36 72/36 94/36 115/58 115/115 Operating Charge - kg R-22 (16.3/16.3) (26.3/16.3) (32.7/16.3) (42.6/16.3) (52.2/26.3) (52.2/56.7) Cond. Storage Cap. - lbs. R-22 44/44 61/44 88/44 105/44 122/122 122/122 Cond. Storage Cap. - kg R-22 (20/20) (27.7/20) (39.9/20) (47.6/20) (55.3/55.3) (55.3/55.3)

Notes:

1. Gross heat rejection is at a 20 F (-6.7 C) ITD (initial temperature difference) between condensing temperature and ambient air entering condenser (includes the effect of subcooling).

2. Operating charge is for entire system, which includes the air–cooled self–contained, remote air–cooled condenser, and 25 feet of interconnecting refrigerant piping.

3. At conditions of 95 F (35 C), condenser storage capacity is 95% full.

4. To determine the correct amount of refrigerant needed for a particuliar application, reference the

Trane Reciprocating Refrigeration Manual

PKG-PRC002-EN20

Page 21

General Data

Heating Coil

Table GD-7. Self-Contained Heating Coil

Unit Size SCWF 20 - 38 SCWF 42 - 80 SCRF 20 - 35 SCRF 40 - 60 Steam Coil

Coil Type NS NS NS NS Rows Rows 1 1 1 1 No./Size (inches) ((2) 24x58) ((2) 30x81) ((2) 24x58) ((2) 30x81) No./Size (mm) ((2) 609.6x1473.2) ((2) 762x2057.4) ((2) 609.6x1473.2) ((2) 762x2057.4)

FPF 42 42 42 42 Hot Water Coil Coil Type WC WC WC WC Rows 1 1 1 1

No./Size (inches) (2) 24x58 (2) 30x81 (2) 24x58 (2) 30x81

No./Size (mm) ((2) 609.6x1473.2) ((2) 762x2057.4) ((2) 609.6x1473.2) ((2) 762x2057.4)

FPF 80 80 80 80 Filter Data

Quantity 4 4 4 4

Size (inches) 20x18x2 16x20x2 20x18x2 16x20x2

Size (mm) (508x457x51) (406x508x51) (508x457x51) (406x508x51)

Quantity 8 8 8 8

Size (inches) 20x20x2 16x25x2 20x20x2 16x25x2

Size (mm) (508x508x51) (406x635x51) (508x508x51) (406x635x51)

Quantity 2 2

Size (inches) 20x20x2 20x20x2

Size (mm) (508x508x51) (508x508x51)

Quantity 4 4

Size (inches) 20x25x2 20x25x2

Size (mm) (508x635x51) (508x635x51)

Notes:

1. Hot water and steam heating coils have Prima-Flo® fins without turbulators.

2. For coil capacites, use TOPSS™ (Trane Official Product Selection Program).

3. Full capacity coils consist of two coils stacked and piped in parallel.

PKG-PRC002-EN 21

Page 22

Performance Airside Pressure Data Drops

Chart PD-1. Airside Pressure Drop SCWF/SIWF 20, 22, 25 and SCRF/SIRF 20

Chart PD-3. Airside Pressure Drop SCWF/SIWF 35, 38 and SCRF/SIRF 30, 35

Chart PD-2. Airside Pressure Drop SCWF/SIWF 29, 32 and SCRF/SIRF 25, 29

Chart PD-4. Airside Pressure Drop SCWF/SIWF 42, 46 and SCRF/SIRF 40

Notes:

1. Dotted line on construction filters indicates cfm where face velocity exceeds manufacturer’s recommended maximum of 300 fpm. After startup, construction filters must be replaced with medium velocity or high velocity filters.

2. Air pressure drop through electric heat is 0.5 inches WC.

3. Refer to Page 25-26 for pressure drop through flexible horizontal discharge plenum.

4. Refer to Page 24 for pressure drop through heating coils.

PKG-PRC002-EN22

Page 23

Performance Airside Pressure Data Drops

Chart PD-5. Airside Pressure Drop SCWF/SIWF 52, 58 and SCRF/SIRF 50

Chart PD-7. Airside Pressure Drop SCWF/SIWF 72

Chart PD-6. Airside Pressure Drop SCWF/SIWF 65

Chart PD-8. Airside Pressure Drop SCWF/SIWF 80 and SCRF/SIRF 60

Notes:

2. Air pressure drop through electric heat is 0.5 inches WC.

3. Refer to Page 25-26 for pressure drop through flexible horizontal discharge plenum.

4. Refer to Page 24 for pressure drop through heating coils.

PKG-PRC002-EN 23

Page 24

Heating Coils

Chart PD-9. Airside Pressure Drop

Steam Coil 20 to 80-Ton Units

For NS Coils

Performance Airside Pressure Data Drops

Chart PD-10. Airside Pressure Drop

Hot Water Coil 20 to 80-Ton Units

PKG-PRC002-EN24

Page 25

Discharge Plenum

Chart PD-10. Airside Pressure Drop,

Standard Height Discharge Plenum 20 to 38 Ton Unit

Performance Airside Pressure Data Drops

Chart PD-11. Airside Pressure Drop

Standard Height Discharge Plenum 42 to 80 Ton Unit

Chart PD-12. Airside Pressure Drop

Low Height Discharge Plenum 20 to 38 Ton Unit

Note: “Primary” refers to the side where the static pressure drop was measured. This value must be added to the unit external static pressure for proper fan horsepower determination.

Chart PD-13. Airside Pressure Drop

Low Height Discharge Plenum 42 to 80 Ton Unit

PKG-PRC002-EN 25

Page 26

Performance Airside Pressure Data Drops

Discharge Plenum

Chart PD-14. Airside Pressure Drop

Extended Height Discharge Plenum 20 to 38-Ton Unit

Chart PD-15. Airside Pressure Drop

Extended Height Discharge Plenum 42 to 80-Ton Unit

PKG-PRC002-EN26

Page 27

Performance Airside Pressure Data Drops

Airside Economizer with Standard Damper

Chart PD-16. Airside Pressure Drop

Airside Economizer with Standard Damper 20 to 38-Ton Unit

Chart PD-17. Airside Pressure Drop

Airside Economizer with Standard Damper 42 to 80-Ton Unit

PKG-PRC002-EN 27

Page 28

Performance Airside Pressure Data Drops

Airside Economizer with Traq™ Damper

Chart PD-18. Airside Pressure Drop

Airside Economizer with Traq™ Damper

Air Flow Rate CFM

PKG-PRC002-EN28

Page 29

Performance Waterside Data Pressure Drop

Chart PD-19. Waterside Pressure Drop SCWF/SIWF 20, 22, 25

Chart PD-21. Waterside Pressure Drop SCWF/SIWF 35, 38

Chart PD-20. Waterside Pressure Drop SCWF/SIWF 29, 32

Chart PD-22. Waterside Pressure Drop SCWF/SIWF 42, 46

Note: Each curve provides total water pressure drop through the entire unit including all accessories and internal valves and piping. Do not add curves together.

PKG-PRC002-EN 29

Page 30

Performance Waterside Data Pressure Drop

Chart PD-23. Waterside Pressure Drop SCWF/SIWF 52, 58

Chart PD-25. Waterside Pressure Drop SCWF/SIWF 72

Chart PD-24. Waterside Pressure Drop SCWF/SIWF 65

Chart PD-26. Waterside Pressure Drop SCWF/SIWF 80

Note: Each curve provides total water pressure drop through the entire unit including all accessories and internal valves and piping. Do not add curves together.

PKG-PRC002-EN30

Page 31

Performance Water-Cooled Data

Table PD-1. CFM Capacity Correction Table

Cfm Compared Cooling Sensible

To Rated Capacity Capacity Quanitity Multiplier Multiplier

-20% 0.970 0.910

DX Cooling Std 1.000 1.000

Waterside Std 1.000 1.000

Economizer +3% 1.005 1.014

-10% 0.985 0.955

+3% 1.005 1.014 +6% 1.009 1.027

-20% 0.970 0.910

-10% 0.985 0.955

+6% 1.009 1.027

PKG-PRC002-EN 31

Page 32

Performance Water-Cooled Data

20 Ton

Table PD-2. SCWF/SIWF 20 - Economizer Full Capacity - 8,000 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

50 210.3 189.3 53.4 132.5 132.5 60.3

62 60 220.8 193.7 52.4 136.2 136.2 59.5

70 228.8 197.1 51.5 138.9 138.9 59.0 50 265.7 160.4 55.6 155.2 119.1 61.2

75 67 60 284.6 167.9 54.5 164.4 122.4 60.5

70 299.0 173.7 53.5 171.8 125.0 59.9 50 339.2 133.9 58.6 221.4 92.8 63.9

72 60 364.8 143.3 57.2 238.3 98.5 62.9

70 383.9 150.5 56.0 251.4 103.0 62.2 50 230.9 226.2 54.2 165.6 165.6 61.6

62 60 239.2 234.5 53.0 170.2 170.2 60.7

70 245.2 240.6 52.0 173.5 173.5 60.0 50 271.3 204.6 55.9 171.1 166.8 61.8

80 67 60 288.1 211.3 54.6 178.2 169.4 60.9

70 300.9 216.5 53.6 183.7 171.4 60.2 50 338.5 176.3 58.5 222.0 135.4 63.9

72 60 363.9 185.8 57.1 238.0 140.8 62.9

70 383.0 193.1 55.9 250.6 145.1 62.2 50 262.5 262.5 55.5 198.6 198.6 62.9

62 60 270.4 270.4 54.0 204.1 204.1 61.8

70 275.9 275.9 52.9 208.0 208.0 60.9 50 283.5 251.3 56.3 199.2 199.2 63.0

85 67 60 298.0 257.1 54.9 204.8 204.8 61.8

70 309.0 261.6 53.8 208.8 208.8 61.0 50 340.7 219.3 58.6 230.6 180.5 64.2

72 60 364.4 228.2 57.1 244.2 185.1 63.1

70 382.6 235.1 55.9 255.1 188.8 62.3

Entering Water Temp

Table PD-3. SCWF/SIWF 20 - Economizer Low Capacity - 8,000 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

50 140.0 135.3 50.6 92.8 92.8 58.7

62 60 147.0 144.0 49.9 96.1 96.1 58.2

70 152.4 146.2 49.4 98.4 98.4 57.8 50 175.6 114.8 52.0 102.0 88.3 59.1

75 67 60 188.4 119.7 51.3 107.8 90.3 58.6

70 198.0 123.3 50.7 112.6 92.0 58.2 50 224.3 90.6 54.0 146.7 64.5 60.9

72 60 241.1 96.5 53.0 157.3 68.0 60.2

70 253.7 101.0 52.2 165.5 70.7 59.7 50 160.2 160.2 51.4 116.1 116.1 59.6

62 60 166.4 166.4 50.5 120.1 120.1 59.0

70 170.7 170.7 49.9 123.0 123.0 58.5 50 177.8 149.8 52.1 116.4 111.3 59.7

80 67 60 189.3 154.2 51.3 120.8 115.7 59.0

70 198.1 157.5 50.7 124.2 119.1 58.5 50 223.8 124.8 54.0 146.2 98.8 60.8

72 60 240.5 130.7 53.0 156.8 102.2 60.2

70 253.1 135.2 52.2 165.0 104.8 59.7 50 183.2 183.2 52.3 139.3 139.3 60.6

62 60 190.2 190.2 51.3 144.1 144.1 59.8

70 195.1 195.1 50.6 147.6 147.6 59.2 50 188.1 187.8 52.5 139.6 139.6 60.6

85 67 60 197.7 191.4 51.6 144.4 144.4 59.8

70 205.0 194.3 50.9 147.9 147.9 59.2 50 223.6 158.9 53.9 151.1 134.6 61.0

72 60 240.0 164.7 53.0 159.8 137.4 60.3

70 252.6 169.2 52.2 166.7 139.7 59.8

Entering Water Temp

PKG-PRC002-EN32

Page 33

Performance Water-Cooled Data

Table PD-4. SCWF/SIWF 20 Gross Cooling Capacity - 8,000 cfm, 60 gpm

Entering Air 75 F 85 F 95 F EDB EWB Total Sensible Total Sensible Total Sensible F F MBh MBh LWT MBh MBh LWT MBh MBh L WT

62 244 185 84.7 235 181 94.7 225 176 104.6

75 67 266 150 85.5 256 146 95.4 246 141 105.3

72 289 114 86.3 278 110 96.2 267 106 106.0 62 244 218 84.7 235 214 94.7 226 209 104.6

80 67 266 183 85.5 256 179 95.4 245 174 105.3

72 289 147 86.3 278 143 96.1 267 139 106.0 62 247 246 84.8 239 239 94.8 231 231 104.8

85 67 265 216 85.5 256 211 95.4 245 207 105.3

72 288 180 86.3 278 176 96.1 267 171 106.0

Chart PD-27. SCWF/SIWF 20 Fan Performance for CV or with VFD

Entering Water Temp

20 Ton

Note:

1. Fan curves include refrigerant coil and internal cabinet static losses. To determine static pressure to be used with these curves, add filter, economizer, flexible horizontal discharge and heat pressure drops to external duct static pressure.

PKG-PRC002-EN 33

Chart PD-28. SCWF/SIWF 20 Fan Performance with Inlet Guide Vanes

Page 34

Performance Water-Cooled Data

22 Ton

Table PD-5. SCWF/SIWF 22 - Economizer Full Capacity - 8,800 cfm

Entering Water Temp

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 66 237.6 210.2 52.2 147.3 147.3 59.5

75 67 66 305.8 181.4 54.3 176.4 132.6 60.3

72 66 391.8 154.1 56.9 255.6 106.1 62.7

62 66 258.1 253.0 52.8 184.0 184.0 60.6

80 67 66 309.6 228.8 54.4 191.8 184.1 60.8

72 66 390.8 200.5 56.8 255.2 152.2 62.7

62 66 292.5 292.5 53.9 220.7 220.7 61.7

85 67 66 320.5 279.0 54.7 221.4 221.4 61.7

72 66 391.3 246.8 56.9 262.1 200.7 62.9

55 226.8 205.7 53.2 143.3 143.3 60.2

77 245.9 213.8 51.4 150.2 150.2 58.9 55 286.3 173.7 55.4 167.0 129.3 61.1

77 320.8 187.5 53.3 184.2 135.4 59.8 55 365.5 144.5 58.3 238.0 100.2 63.7

77 411.9 161.6 55.7 269.5 110.8 62.0 55 249.7 244.6 54.1 179.1 179.1 61.5

77 264.5 259.4 51.9 187.6 187.6 59.9 55 292.3 222.0 55.6 184.5 181.5 61.7

77 322.9 234.2 53.4 197.6 186.2 60.1 55 364.6 190.8 58.3 238.6 146.7 63.7

77 410.9 208.1 55.7 268.6 156.8 62.0 55 284.2 284.2 55.3 214.8 214.8 62.8

77 298.4 298.4 52.7 225.0 225.0 60.8 55 305.7 273.1 56.1 215.5 215.5 62.8

77 332.0 283.6 53.6 225.8 225.8 60.9 55 366.9 237.7 58.3 247.9 195.9 64.0

77 410.3 254.0 55.7 273.5 204.6 62.1

Table PD-6. SCWF/SIWF 22 - Economizer Low Capacity - 8,800 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

55 150.1 145.0 50.5 99.6 99.6 58.6

62 66 157.1 155.1 49.8 102.9 102.9 58.1

77 162.5 157.3 49.2 105.4 105.4 57.7 55 188.1 123.5 51.8 108.9 95.1 59.0

75 67 66 200.9 128.4 51.1 114.8 97.1 58.5

77 210.7 132.1 50.5 119.7 98.9 58.1 55 240.1 97.1 53.7 156.6 69.2 60.7

72 66 256.9 103.0 52.8 167.3 72.6 60.1

77 269.8 107.6 52.0 175.9 75.4 59.6 55 172.2 172.2 51.3 124.5 124.5 59.5

62 66 178.4 178.4 50.4 128.6 128.6 58.9

77 182.9 182.9 49.7 131.7 131.7 58.4 55 190.4 161.4 51.9 124.8 119.3 59.5

80 67 66 201.9 165.8 51.1 129.2 123.7 58.9

77 210.8 169.2 50.5 132.7 127.1 58.4 55 239.6 134.1 53.7 156.1 106.2 60.7

72 66 256.4 140.0 52.8 166.8 109.7 60.1

77 269.2 144.6 52.0 175.3 112.4 59.6 55 196.8 196.8 52.2 149.5 149.5 60.4

62 66 203.9 203.9 51.2 154.4 154.4 59.7

77 209.0 209.0 50.4 158.1 158.1 59.1 55 201.6 195.7 52.3 149.7 149.7 60.4

85 67 66 211.1 206.2 51.4 154.7 154.7 59.7

77 218.5 209.0 50.7 158.4 158.4 59.1 55 239.3 171.1 53.7 161.4 145.1 60.9

72 66 255.8 177.0 52.8 170.1 147.9 60.2

77 268.6 181.5 52.0 177.3 150.2 59.6

Entering Water Temp

PKG-PRC002-EN34

Page 35

Performance Water-Cooled Data

Table PD-7 — SCWF/SIWF 22 Gross Cooling Capacity - 8,800 cfm, 66 gpm

Entering Air 75 F 85 F 95 F

EDB EWB Total Sensible Total Sensible Total Sensible

F F MBh MBh LWT MBh MBh LW T MBh MBh L WT

62 257 197 84.3 248 193 94.3 238 188 104.2

75 67 280 159 85.0 270 155 94.9 259 150 104.9

72 305 120 85.8 294 116 95.7 282 112 105.6 62 257 233 84.3 248 228 94.3 238 223 104.2

80 67 280 194 85.0 270 190 94.9 259 186 104.9

72 304 156 85.8 294 152 95.7 282 147 105.6 62 262 261 84.4 254 254 94.4 246 246 104.4

85 67 280 230 85.0 270 226 94.9 259 221 104.8

72 304 191 85.8 293 187 95.7 282 183 105.6

Chart PD-29 — SCWF/SIWF 22 Fan Performance for CV or with VFD

22 Ton

Entering Water Temp

Note:

PKG-PRC002-EN 35

Chart PD-30 — SCWF/SIWF 22 Fan Performance with Inlet Guide Vanes

Page 36

Performance Water-Cooled Data

25 Ton

Table PD-8. SCWF/SIWF 25 - Economizer Full Capacity -10,000 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

63 250.7 229.6 53.0 159.0 159.0 60.0

62 75 261.4 234.1 52.0 163.2 163.2 59.4

80 265.2 235.7 51.6 164.6 164.6 59.1 63 316.1 193.1 55.0 183.8 144.0 60.8

75 67 75 335.6 200.8 53.9 193.5 147.5 60.2

80 342.5 203.6 53.6 197.0 148.7 59.9 63 404.1 160.2 57.8 262.3 110.9 63.3

72 75 429.9 169.5 56.5 280.2 116.9 62.5

80 439.1 172.9 56.0 286.5 119.0 62.2 63 276.9 271.1 53.8 198.7 198.7 61.3

62 75 285.3 279.5 52.6 203.9 203.9 60.4

80 288.2 282.4 52.2 205.6 205.6 60.1 63 322.6 247.4 55.2 203.9 202.9 61.5

80 67 75 339.8 254.2 54.1 211.3 205.6 60.6

80 345.9 256.6 53.6 213.9 206.5 60.3 63 403.2 212.1 57.8 262.8 163.2 63.3

72 75 428.9 221.6 56.4 279.7 168.8 62.5

80 438.1 225.0 56.0 285.8 170.9 62.1 63 315.6 315.6 55.0 238.3 238.3 62.6

62 75 324.1 324.1 53.6 244.6 244.6 61.5

80 326.9 326.9 53.2 246.6 246.6 61.2 63 337.7 304.9 55.7 239.1 239.1 62.6

85 67 75 352.4 310.7 54.4 245.3 245.3 61.5

80 357.6 312.8 53.9 247.4 247.4 61.2 63 404.8 264.6 57.9 273.0 218.6 63.7

72 75 429.2 273.6 56.4 287.4 223.4 62.7

80 438.0 276.9 55.9 292.5 225.1 62.3

Entering Water Temp

Table PD-9. SCWF/SIWF 25 - Economizer Low Capacity - 10,000 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

63 164.5 158.7 50.2 109.2 109.2 58.5

62 75 171.1 170.9 49.6 112.6 112.6 58.0

80 173.5 171.9 49.3 113.7 113.7 57.8 63 205.7 136.0 51.5 118.7 104.8 58.8

75 67 75 218.1 140.7 50.8 124.5 106.8 58.3

80 222.4 142.3 50.6 126.7 107.6 58.2 63 262.5 106.4 53.3 170.7 75.8 60.4

72 75 278.7 112.1 52.4 181.4 79.2 59.8

80 284.5 114.1 52.1 185.2 80.4 59.6 63 189.1 189.1 51.0 136.5 136.5 59.3

62 75 195.2 195.2 50.2 140.7 140.7 58.8

80 197.2 197.2 49.9 142.2 142.2 58.6 63 208.1 178.0 51.6 136.8 136.8 59.3

80 67 75 219.1 182.2 50.8 141.1 134.8 58.8

80 223.1 183.7 50.6 142.6 136.4 58.6 63 262.0 147.5 53.3 170.2 116.9 60.4

72 75 278.1 153.2 52.4 180.8 120.4 59.8

80 283.9 155.2 52.1 184.6 121.6 59.6 63 216.2 216.2 51.9 163.9 163.9 60.2

62 75 223.0 223.0 50.9 168.9 168.9 59.5

80 225.4 225.4 50.6 170.6 170.6 59.3 63 220.7 214.1 52.0 164.2 164.2 60.2

85 67 75 229.7 227.2 51.1 169.2 169.2 59.5

80 233.0 228.4 50.8 170.9 170.9 59.3 63 261.5 188.6 53.3 175.9 160.0 60.6

72 75 277.6 194.2 52.4 184.5 162.8 59.9

80 283.2 196.2 52.1 187.7 163.8 59.7

Entering Water Temp

PKG-PRC002-EN36

Page 37

Performance Water-Cooled Data

Table PD-10. SCWF/SIWF 25 Gross Cooling Capacity - 10,000 cfm, 75 gpm

Entering Air 75 F 85 F 95 F

EDB EWB Total Sensible Total Sensible Total Sensible

F F MBh MBh LWT MBh MBh LW T MBh MBh L WT

62 281 234 83.9 270 229 93.8 259 224 103.6

75 67 306 184 84.5 294 179 94.4 281 174 104.3

72 332 133 85.3 319 129 95.1 305 124 105.0 62 284 278 83.9 274 272 93.8 263 263 103.8

80 67 306 231 84.5 294 227 94.4 281 221 104.3

72 332 180 85.3 319 176 95.1 305 171 104.9 62 298 298 84.3 288 288 94.3 278 278 104.2

85 67 306 278 84.6 295 272 94.4 283 267 104.3

72 332 228 85.2 319 223 95.1 305 218 104.9

Chart PD-31. SCWF/SIWF 25 Fan Performance for CV or with VFD

Entering Water Temp

25 Ton

Note:

PKG-PRC002-EN 37

Chart PD-32. SCWF/SIWF 25 Fan Performance with Inlet Guide Vanes

Page 38

Performance Water-Cooled Data

29 Ton

Table PD-11. SCWF/SIWF 29 - Economizer Full Capacity - 11,600 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

73 302.2 272.9 53.3 190.6 190.6 60.2

62 87 316.4 278.8 52.3 195.7 195.7 59.5

102 327.9 283.8 51.4 199.7 199.7 58.9

73 382.0 231.0 55.5 222.7 171.6 61.1

75 67 87 407.4 241.1 54.4 235.2 176.0 60.4

102 428.3 249.5 53.4 245.9 179.8 59.8

73 488.3 192.9 58.4 318.0 133.5 63.7

72 87 522.1 205.3 57.0 340.8 141.2 62.8

102 549.9 215.7 55.8 360.0 147.7 62.1

73 332.2 325.4 54.1 238.2 238.2 61.5

62 87 343.2 336.5 52.9 244.5 244.5 60.6

102 352.0 345.3 51.9 249.4 249.4 59.9

73 389.9 294.8 55.7 245.9 240.6 61.7

80 67 87 412.4 303.8 54.5 255.3 244.0 60.9

102 431.0 311.3 53.5 263.4 246.9 60.2

73 487.3 254.1 58.4 318.8 195.0 63.7

72 87 520.9 266.7 57.0 340.3 202.2 62.8

102 548.6 277.2 55.8 358.8 208.5 62.0

73 377.9 377.9 55.4 285.7 285.7 62.8

62 87 388.6 388.6 53.9 293.2 293.2 61.7

102 396.6 396.6 52.8 299.0 299.0 60.9

73 407.5 362.3 56.2 286.6 286.6 62.9

85 67 87 426.8 370.0 54.8 294.2 294.2 61.8

102 442.8 376.5 53.7 300.1 300.1 60.9

73 489.7 316.0 58.4 331.0 260.1 64.1

72 87 521.5 327.9 57.0 349.3 266.3 63.0

102 547.9 337.9 55.7 365.1 271.7 62.2

Entering Water Temp

Table PD-12. SCWF/SIWF 29 - Economizer Low Capacity - 11,600 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

73 200.6 193.8 50.5 133.0 133.0 58.6

62 87 209.8 206.5 49.8 137.3 137.3 58.2

102 217.4 209.6 49.3 140.7 140.7 57.8

73 251.7 164.8 51.9 145.8 126.7 59.0

75 67 87 268.6 171.2 51.2 153.5 129.3 58.5

102 282.3 176.4 50.5 160.5 131.8 58.1

73 321.4 129.8 53.8 209.9 92.5 60.7

72 87 343.5 137.7 52.9 223.9 97.0 60.1

102 361.6 144.1 52.1 235.8 100.9 59.6

73 229.7 229.7 51.3 166.2 166.2 59.6

62 87 237.9 237.9 50.5 171.6 171.6 58.9

102 244.1 244.1 49.8 175.9 175.9 58.4

73 254.7 215.0 52.0 166.6 159.4 59.6

80 67 87 269.9 220.8 51.2 172.4 165.1 59.0

102 282.5 225.6 50.5 177.4 170.0 58.5

73 320.7 179.0 53.8 209.2 141.7 60.7

72 87 342.8 186.8 52.9 223.2 146.2 60.1

102 360.8 193.2 52.1 235.0 150.0 59.6

73 262.7 262.7 52.2 199.5 199.5 60.5

62 87 271.9 271.9 51.3 205.9 205.9 59.7

102 279.0 279.0 50.5 211.0 211.0 59.1

73 269.4 261.6 52.4 199.9 199.9 60.5

85 67 87 282.0 274.4 51.5 206.3 206.3 59.7

102 292.4 278.4 50.7 211.5 211.5 59.1

73 320.3 228.1 53.8 216.1 193.2 60.9

72 87 342.1 235.8 52.9 227.6 196.9 60.2

102 360.0 242.2 52.1 237.6 200.2 59.7

Entering Water Temp

PKG-PRC002-EN38

Page 39

Performance Water-Cooled Data

Table PD-13. SCWF/SIWF 29 Gross Cooling Capacity - 11,600 cfm, 87 gpm

Entering Air 75 F 85 F 95 F

EDB EWB Total Sensible Total Sensible Total Sensible

F F MBh MBh L WT MBh MBh LW T MBh MBh LW T

62 335 266 84.2 323 259 94.1 309 254 104.0

75 67 365 211 84.9 352 206 94.8 337 201 104.7

72 397 157 85.6 383 152 95.5 366 146 105.4 62 336 315 84.2 325 309 94.1 311 301 104.0

80 67 365 262 84.9 352 256 94.8 337 251 104.6

72 396 208 85.6 381 202 95.5 366 196 105.4 62 347 347 84.4 337 337 94.4 325 325 104.3

85 67 365 312 84.9 351 306 94.8 337 300 104.7

72 396 258 85.6 381 253 95.5 366 246 105.3

Chart PD-33. SCWF/SIWF 29 Fan Performance for CV or with VFD

29 Ton

Entering Water Temp

Note:

PKG-PRC002-EN 39

Chart PD-34. SCWF/SIWF 29 Fan Performance with Inlet Guide Vanes

Page 40

Performance Water-Cooled Data

32 Ton

Table PD-14. SCWF/SIWF 32 - Economizer Full Capacity - 12,800 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

80 325.8 296.8 53.1 206.2 206.2 60.2

62 96 340.9 303.2 52.1 212.0 212.0 59.4

102 345.5 305.1 51.8 213.7 213.7 59.2

80 410.8 250.1 55.3 239.5 186.4 61.0

75 67 96 438.2 260.9 54.1 252.7 191.1 60.3

102 446.8 264.3 53.8 257.1 192.7 60.0

80 524.5 207.6 58.1 341.3 144.0 63.5

72 96 561.3 221.1 56.7 366.1 152.2 62.6

102 572.8 225.3 56.2 374.0 154.9 62.3

80 359.2 351.8 54.0 257.7 257.7 61.4

62 96 371.0 363.6 52.7 264.8 264.8 60.5

102 374.6 367.2 52.3 266.9 266.9 60.2

80 419.5 320.1 55.5 265.0 262.1 61.6

80 67 96 443.6 329.6 54.2 275.3 265.8 60.7

102 451.2 332.6 53.8 278.6 267.0 60.5

80 523.3 274.5 58.1 342.0 211.3 63.6

72 96 560.0 288.2 56.7 365.5 219.1 62.6

102 571.4 292.5 56.2 373.1 221.7 62.3

80 409.2 409.2 55.2 309.1 309.1 62.7

62 96 420.9 420.9 53.8 317.6 317.6 61.6

102 424.4 424.4 53.3 320.1 320.1 61.3

85 80 439.0 394.1 56.0 310.1 310.1 62.8

67 96 459.6 402.3 54.6 318.6 318.6 61.6

102 466.1 404.9 54.1 321.2 321.2 61.3

80 526.4 342.5 58.2 355.4 282.6 63.9

72 96 560.6 355.2 56.7 375.4 289.3 62.8

102 571.4 359.3 56.2 381.8 291.5 62.5

Entering Water Temp

Table PD-15. SCWF/SIWF 32 - Economizer Low Capacity - 12,800 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

80 214.8 207.4 50.4 142.6 142.6 58.6

62 96 224.4 222.7 49.7 147.3 147.3 58.1

102 227.4 223.9 49.5 148.7 148.7 57.9

80 268.8 177.2 51.7 155.5 136.5 58.9

75 67 96 286.5 183.8 51.0 163.6 139.3 58.4

102 292.0 185.9 50.7 166.4 140.3 58.3

80 343.2 138.9 53.6 223.5 99.0 60.6

72 96 366.3 147.1 52.6 238.5 103.8 60.0

102 373.5 149.6 52.3 243.3 105.3 59.8

80 246.7 246.7 51.2 178.3 178.3 59.5

62 96 255.3 255.3 50.3 184.1 184.1 58.8

102 257.8 257.8 50.1 185.9 185.9 58.6

80 272.1 231.7 51.8 178.6 178.6 59.5

80 67 96 287.9 237.7 51.0 184.7 176.7 58.8

102 292.9 239.6 50.7 186.7 178.6 58.7

80 342.5 192.3 53.6 222.8 152.4 60.6

72 96 365.5 200.4 52.6 237.7 157.2 60.0

102 372.7 202.9 52.3 242.5 158.7 59.8

80 282.0 282.0 52.0 214.0 214.0 60.3

62 96 291.8 291.8 51.1 220.9 220.9 59.6

102 294.7 294.7 50.8 223.0 223.0 59.4

80 288.3 279.8 52.2 214.4 214.4 60.4

85 67 96 301.4 296.0 51.3 221.3 221.3 59.6

102 305.5 297.6 51.0 223.5 223.5 59.4

80 342.0 245.6 53.5 230.4 208.3 60.8

72 96 364.8 253.6 52.6 242.5 212.2 60.1

102 371.9 256.1 52.3 246.5 213.5 59.8

Entering Water Temp

PKG-PRC002-EN40

Page 41

Performance Water-Cooled Data

Table PD-16. SCWF/SIWF 32 Gross Cooling Capacity - 12,800 cfm, 96 gpm

Entering Air 75 F 85 F 95 F

EDB EWB Total Sensible Total Sensible Total Sensible

F F MBh MBh LWT MBh MBh LW T MBh MBh L WT

62 367 317 83.9 352 310 93.8 337 303 103.7

75 67 398 246 84.6 382 240 94.5 365 233 104.3

72 432 175 85.3 415 169 95.2 397 163 105.0 62 374 372 84.1 361 360 94.0 348 348 103.9

80 67 398 313 84.6 382 307 94.5 365 300 104.3

72 431 241 85.3 415 236 95.2 397 229 105.0 62 393 393 84.5 380 380 94.4 367 367 104.3

85 67 401 377 84.7 386 370 94.6 369 361 104.4

72 431 308 85.3 414 302 95.2 395 296 105.0

Chart PD-35. SCWF/SIWF 32 Fan Performance for CV or with VFD

32 Ton

Entering Water Temp

Note:

PKG-PRC002-EN 41

Chart PD-36. SCWF/SIWF 32 Fan Performance with Inlet Guide Vanes

Page 42

Performance Water-Cooled Data

35 Ton

Table PD-17. SCWF/SIWF 35 - Economizer Full Capacity - 14,000 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

88 335.2 309.5 52.6 212.8 212.8 59.8

62 105 349.5 315.4 51.7 218.4 218.4 59.2

119 358.9 319.4 51.0 221.9 221.9 58.7

88 425.7 260.8 54.7 246.3 194.3 60.6

75 67 105 451.9 271.0 53.6 259.2 198.8 59.9

119 469.1 277.9 52.9 268.1 202.0 59.5

88 544.6 216.1 57.4 354.1 149.9 63.0

72 105 579.2 228.9 56.0 377.7 157.7 62.2

119 602.1 237.4 55.1 393.3 162.9 61.6

88 370.3 362.2 53.4 265.9 265.9 61.0

62 105 381.4 373.3 52.3 272.9 272.9 60.2

119 388.6 380.5 51.5 277.3 277.3 59.7

88 432.4 333.5 54.8 272.4 263.1 61.2

80 67 105 455.5 342.6 53.7 282.1 277.2 60.4

119 470.9 348.7 52.9 288.7 279.6 59.9

88 543.4 286.3 57.3 353.7 220.4 63.0

72 105 577.9 299.0 56.0 376.4 228.0 62.2

119 600.6 307.6 55.1 391.9 233.1 61.6

88 422.4 422.4 54.6 319.0 319.0 62.2

62 105 433.8 433.8 53.3 327.3 327.3 61.2

119 440.9 440.9 52.4 332.5 332.5 60.6

88 451.5 410.9 55.3 319.9 319.9 62.3

85 67 105 471.1 418.7 54.0 328.3 328.3 61.3

119 484.1 423.9 53.1 333.5 333.5 60.6

88 544.2 357.0 57.4 365.6 294.8 63.3

72 105 577.1 369.2 56.0 384.6 301.2 62.3

119 599.3 377.5 55.1 397.7 305.6 61.7

Entering Water Temp

Table PD-18. SCWF/SIWF 35 - Economizer Low Capacity - 14,000 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

88 216.3 208.3 49.9 143.3 143.3 58.3

62 105 224.9 223.6 49.3 147.5 147.5 57.8

119 230.7 225.9 48.9 150.3 150.3 57.5

88 274.3 179.6 51.2 157.0 137.4 58.6

75 67 105 290.2 185.6 50.5 164.7 140.1 58.1

119 300.7 189.6 50.1 170.1 142.0 57.9

88 350.3 141.5 53.0 228.0 100.5 60.2

72 105 371.3 148.9 52.1 241.7 105.0 59.6

119 385.1 153.9 51.5 250.9 107.9 59.2

88 248.2 248.2 50.6 179.2 179.2 59.1

62 105 255.9 255.9 49.9 184.4 184.4 58.5

119 260.8 260.8 49.4 187.8 187.8 58.2

88 275.7 233.7 51.3 179.5 179.5 59.1

80 67 105 290.3 239.2 50.5 184.9 176.3 58.5

119 300.2 243.0 50.0 188.6 179.9 58.2

88 349.6 195.1 52.9 227.3 154.2 60.2

72 105 370.5 202.4 52.1 241.0 158.6 59.6

119 384.3 207.4 51.5 250.1 161.5 59.2

88 283.7 283.7 51.4 215.0 215.0 59.9

62 105 292.5 292.5 50.6 221.3 221.3 59.2

119 298.0 298.0 50.0 225.3 225.3 58.8

88 290.3 281.2 51.6 215.4 215.4 59.9

85 67 105 302.1 297.2 50.8 221.7 221.7 59.2

119 310.0 300.2 50.2 225.7 225.7 58.8

88 348.9 248.6 52.9 232.4 209.6 60.3

72 105 369.7 255.9 52.0 243.8 213.2 59.6

Entering Water Temp

PKG-PRC002-EN42

Page 43

Performance Water-Cooled Data

Table PD-19. SCWF/SIWF 35 Gross Cooling Capacity - 14,000 cfm, 105 gpm

Entering Air 75 F 85 F 95 F

EDB EWB Total Sensible Total Sensible Total Sensible

F F MBh MBh LWT MBh MBh LW T MBh MBh L WT

62 401 320 84.1 386 313 94.0 369 306 103.9

75 67 436 254 84.8 420 247 94.7 402 240 104.6

72 474 188 85.5 456 182 95.4 437 175 105.3 62 402 381 84.1 388 373 94.0 373 365 104.0

80 67 436 316 84.8 419 309 94.7 402 302 104.6

72 473 250 85.5 455 243 95.4 436 236 105.3 62 419 419 84.4 406 406 94.4 392 392 104.4

85 67 435 377 84.8 419 370 94.7 402 363 104.6

72 473 311 85.5 455 304 95.4 436 297 105.2

Chart PD-37. SCWF/SIWF 35 Fan Performance for CV or with VFD

35 Ton

Entering Water Temp

Note:

PKG-PRC002-EN 43

Chart PD-38. SCWF/SIWF 35 Fan Performance with Inlet Guide Vanes

Page 44

Performance Water-Cooled Data

38 Ton

Table PD-20. SCWF/SIWF 38 - Economizer Full Capacity - 15,200 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 114 370.6 337.2 51.5 232.7 232.7 59.1

75 67 114 478.7 288.7 53.4 274.4 212.4 59.8

72 114 613.4 242.7 55.8 399.7 167.5 62.0

62 114 405.8 397.1 52.1 290.7 290.7 60.1

80 67 114 482.4 365.7 53.5 299.5 296.9 60.3

72 114 612.0 318.2 55.7 398.4 243.1 62.0

62 114 462.2 462.2 53.1 348.7 348.7 61.1

85 67 114 499.4 447.7 53.8 349.7 349.7 61.1

72 114 611.1 393.6 55.7 407.1 321.9 62.1

95 355.5 330.9 52.5 226.5 226.5 59.8

119 374.1 338.7 51.3 234.0 234.0 58.9

95 450.7 277.7 54.5 260.8 207.6 60.5

119 485.0 291.2 53.2 277.6 213.5 59.7

95 576.2 229.0 57.1 374.4 159.1 62.9

119 621.8 245.8 55.4 405.4 169.4 61.8

95 394.0 385.2 53.3 283.0 283.0 61.0

119 408.5 399.7 51.9 292.4 292.4 59.9

95 457.8 356.0 54.6 289.1 279.0 61.1

119 488.0 367.9 53.2 301.8 297.8 60.1

95 574.9 304.5 57.1 374.0 235.0 62.9

119 620.3 321.3 55.4 404.0 245.0 61.8

95 449.7 449.7 54.5 339.5 339.5 62.1

119 464.8 464.8 52.8 350.7 350.7 60.9

95 478.6 439.4 55.1 340.5 340.5 62.2

119 504.2 449.6 53.5 351.7 351.7 60.9

95 575.8 380.7 57.1 386.7 315.1 63.1

119 619.2 396.6 55.4 411.8 323.5 61.9

Table PD-21. SCWF/SIWF 38 - Economizer Low Capacity - 15,200 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

95 228.0 219.3 49.8 151.4 151.4 58.2

62 114 237.0 228.2 49.2 155.9 155.9 57.7

119 239.0 238.1 49.0 156.9 156.9 57.6

95 288.5 190.0 51.1 165.1 145.8 58.5

75 67 114 305.2 196.3 50.4 173.1 148.5 58.0

119 308.9 197.7 50.2 175.0 149.2 57.9

95 368.4 149.1 52.8 239.5 106.0 60.0

72 114 390.3 156.8 51.8 254.0 110.7 59.5

119 395.3 158.6 51.6 257.3 111.8 59.3

95 262.3 262.3 50.5 189.2 189.2 59.0

62 114 270.4 270.4 49.7 194.9 194.9 58.4

119 272.2 272.2 49.6 196.1 196.1 58.3

95 290.0 247.8 51.1 189.5 189.5 59.0

80 67 114 305.3 253.5 50.4 195.2 185.9 58.4

119 308.8 254.8 50.2 196.5 187.2 58.3

95 367.6 206.3 52.7 238.7 163.2 60.0

72 114 389.5 213.9 51.8 253.2 167.9 59.4

119 394.5 215.7 51.6 256.4 168.9 59.3

95 299.8 299.8 51.3 227.1 227.1 59.8

62 114 309.1 309.1 50.4 233.8 233.8 59.1

119 311.1 311.1 50.2 235.3 235.3 59.0

95 305.9 296.1 51.4 227.5 227.5 59.8

85 67 114 318.2 315.4 50.6 234.2 234.2 59.1

119 321.0 316.5 50.4 235.7 235.7 59.0

95 366.9 263.3 52.7 244.3 222.3 60.1

72 114 388.7 270.9 51.8 256.2 226.2 59.5

119 393.6 272.7 51.6 259.0 227.1 59.4

Entering Water Temp

PKG-PRC002-EN44

Page 45

Performance Water-Cooled Data

Table PD-22. SCWF/SIWF 38 Gross Cooling Capacity - 15,200 cfm, 114 gpm

Entering Air 75 F 85 F 95 F

EDB EWB Total Sensible Total Sensible Total Sensible

F F MBh MBh L WT MBh MBh L WT MBh MBh L WT

62 434 373 83.9 416 365 93.8 398 357 103.7

75 67 471 290 84.6 452 283 94.5 432 275 104.3

72 511 206 85.3 490 199 95.2 469 192 105.0 62 441 441 84.1 426 426 94.0 410 410 103.9

80 67 470 369 84.6 452 361 94.5 432 353 104.3

72 510 285 85.3 490 277 95.2 468 270 105.0 62 465 465 84.5 450 450 94.4 433 433 104.4

85 67 473 444 84.7 455 435 94.5 436 425 104.4

72 510 363 85.3 489 355 95.2 468 348 105.0

Chart PD-39. SCWF/SIWF 38 Fan Performance for CV or with VFD

38 Ton

Entering Water Temp

Note:

PKG-PRC002-EN 45

Chart PD-40. SCWF/SIWF 38 Fan Performance with Inlet Guide Vanes

Page 46

Performance Water-Cooled Data

42 Ton

Table PD-23. SCWF/SIWF 42 - Economizer Full Capacity - 16,800 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

105 438.5 393.8 53.4 274.5 274.5 60.2

62 126 457.1 401.7 52.3 281.4 281.4 59.5

142 468.6 406.6 51.6 285.4 285.4 59.0 105 556.7 335.0 55.6 322.8 247.5 61.1

75 67 126 591.2 348.7 54.4 339.9 253.6 60.4

142 612.2 357.2 53.6 350.8 257.5 59.9 105 711.9 281.0 58.6 462.2 193.6 63.8

72 126 757.8 297.9 57.0 494.2 204.4 62.8

142 786.0 308.5 56.1 513.6 211.0 62.2 105 480.2 470.5 54.1 343.0 343.0 61.5

62 126 494.6 484.9 52.9 351.6 351.6 60.6

142 503.3 493.6 52.1 356.5 356.5 60.0 105 566.9 426.2 55.8 354.9 346.2 61.8

80 67 126 597.1 438.3 54.5 367.9 350.9 60.8

142 615.8 445.8 53.7 375.9 353.8 60.3 105 710.3 368.9 58.5 462.7 281.8 63.8

72 126 756.0 386.0 57.0 493.0 291.9 62.8

142 784.0 396.7 56.0 511.9 298.3 62.2 105 545.5 545.5 55.4 411.4 411.4 62.8

62 126 559.4 559.4 53.9 421.6 421.6 61.7

142 567.3 567.3 53.0 427.4 427.4 61.0 105 590.8 522.7 56.3 412.7 412.7 62.9

85 67 126 616.6 533.0 54.8 423.0 423.0 61.7

142 632.5 539.5 53.9 428.9 428.9 61.0 105 712.7 457.3 58.6 479.1 374.9 64.1

72 126 756.0 473.6 57.0 504.7 383.5 63.0

142 782.8 483.8 56.0 520.7 388.9 62.3

Entering Water Temp

Table PD-24. SCWF/SIWF 42 - Economizer Low Capacity - 16,800 cfm

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

105 291.1 290.3 50.5 191.1 191.1 58.6

62 126 302.7 295.0 49.8 196.7 196.7 58.1

142 310.0 298.0 49.4 200.0 200.0 57.8 105 368.9 238.2 52.0 211.6 181.4 59.0

75 67 126 390.4 246.4 51.2 221.9 184.9 58.5

142 403.6 251.5 50.7 228.7 187.3 58.2 105 471.3 189.6 54.0 306.1 133.9 60.8

72 126 499.6 199.7 52.9 325.0 140.0 60.2

142 517.1 206.0 52.3 336.6 143.8 59.7 105 331.6 331.6 51.3 238.9 238.9 59.6

62 126 341.5 341.5 50.4 245.9 245.9 58.9

142 347.4 347.4 49.9 250.0 250.0 58.5 105 566.9 426.2 55.8 354.9 346.2 61.8

80 67 126 391.2 316.4 51.2 247.4 236.8 58.9

142 403.5 321.1 50.7 252.1 241.5 58.6 105 470.3 259.3 54.0 305.1 203.7 60.8

72 126 498.5 269.3 52.9 323.9 209.7 60.1

142 515.9 275.6 52.3 335.5 213.5 59.7 105 379.0 379.0 52.2 286.7 286.7 60.5

62 126 390.3 390.3 51.2 295.0 295.0 59.7

142 397.0 397.0 50.6 299.9 299.9 59.2 105 390.9 385.8 52.4 287.3 287.3 60.5

85 67 126 406.8 392.0 51.5 295.6 295.6 59.7

142 416.8 395.8 50.9 300.5 300.5 59.2 105 469.3 328.9 53.9 313.2 276.2 61.0

72 126 497.4 338.8 52.9 328.7 281.3 60.2

142 514.8 345.1 52.3 338.5 284.5 59.8

Entering Water Temp

PKG-PRC002-EN46

Page 47

Performance Water-Cooled Data

Table PD-25. SCWF/SIWF 42 Gross Cooling Capacity - 16,800 cfm, 126 gpm

Entering Air 75 F 85 F 95 F

EDB EWB Total Sensible Total Sensible Total Sensible

F F MBh MBh LWT MBh MBh LW T MBh MBh L WT

62 488 403 84.1 469 394 94.1 449 385 104.0

75 67 530 317 84.9 510 309 94.7 488 300 104.6

72 576 231 85.6 554 223 95.5 531 215 105.3 62 493 473 84.3 476 460 94.2 458 445 104.1

80 67 530 397 84.9 510 389 94.7 488 380 104.6

72 576 311 85.6 554 303 95.5 530 295 105.3 62 513 512 84.6 496 496 94.5 479 479 104.5

85 67 532 476 84.9 512 467 94.8 491 456 104.6

72 575 391 85.6 553 383 95.5 530 375 105.3

Chart PD-41. SCWF/SIWF 42 Fan Performance for CV or with VFD

42 Ton

Entering Water Temp

Note:

PKG-PRC002-EN 47

Chart PD-42. SCWF/SIWF 42 Fan Performance with Inlet Guide Vanes

Page 48

Performance Water-Cooled Data

46 Ton

Table PD-26. SCWF/SIWF 46 - Economizer Full Capacity - 18,400 cfm

Entering Water Temp Entering Air 45 F 55 F EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 138 488.5 433.3 52.1 302.5 302.5 59.4

75 67 138 630.9 374.4 54.1 362.5 273.2 60.3

72 138 808.6 318.4 56.7 526.8 218.7 62.6

62 138 530.5 519.8 52.7 377.9 377.9 60.5

80 67 138 637.2 471.8 54.2 393.5 379.2 60.7

72 138 806.6 413.9 56.7 525.5 313.9 62.6

62 138 601.2 601.2 53.7 453.1 453.1 61.6

85 67 138 658.8 574.9 54.5 454.6 454.6 61.6

72 138 806.5 509.1 56.7 538.2 413.4 62.8

115 469.0 425.0 53.2 295.0 295.0 60.1

142 491.5 434.5 51.9 303.5 303.5 59.3 115 594.6 360.1 55.3 344.7 266.9 61.0

142 636.3 376.6 54.0 365.3 274.2 60.1 115 760.7 300.9 58.2 493.5 207.5 63.6

142 815.8 321.1 56.5 531.8 220.3 62.5 115 515.3 504.7 54.0 368.6 368.6 61.4

142 532.7 522.0 52.5 379.2 379.2 60.3 115 605.5 459.2 55.5 380.0 374.4 61.6

142 642.0 473.7 54.0 395.6 380.0 60.6 115 759.0 396.1 58.2 493.9 303.3 63.6

142 813.8 416.6 56.5 530.3 315.5 62.5 115 586.3 586.3 55.2 442.1 442.1 62.7

142 603.4 603.4 53.5 454.7 454.7 61.4 115 631.8 564.1 56.0 443.5 443.5 62.7

142 662.8 576.6 54.3 456.2 456.2 61.4 115 761.0 492.1 58.2 511.5 404.5 63.9

142 813.3 511.6 56.5 542.2 414.8 62.6

Table PD-27. SCWF/SIWF 46 - Economizer Low Capacity - 18,400 cfm

Entering Water Temp

Entering Air 45 F 55 F

EDB EWB Water Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 138 321.0 315.6 49.7 209.4 209.4 58.0

75 67 138 413.0 262.5 51.0 234.6 197.6 58.4

72 138 528.4 211.6 52.7 343.5 148.6 60.0

62 138 363.6 363.6 50.3 261.7 261.7 58.8

80 67 138 413.9 337.9 51.0 262.9 251.4 58.8

72 138 527.3 286.6 52.6 342.3 223.7 60.0

62 138 415.5 415.5 51.0 314.0 314.0 59.6

85 67 138 431.2 419.4 51.2 314.6 314.6 59.6

72 138 526.1 361.4 52.6 347.6 300.7 60.0

115 309.1 298.4 50.4 203.6 203.6 58.5

142 322.8 316.3 49.5 210.3 210.3 58.0 115 390.9 254.1 51.8 224.1 194.0 58.9

142 416.4 263.8 50.9 236.3 198.2 58.3 115 499.2 201.2 53.7 324.1 142.3 60.6

142 532.8 213.1 52.5 346.4 149.6 59.9 115 353.2 353.2 51.1 254.4 254.4 59.4

142 365.1 365.1 50.1 262.8 262.8 58.7 115 394.0 330.3 51.9 255.0 243.6 59.4

142 417.0 339.1 50.9 264.1 252.5 58.7 115 498.1 276.3 53.7 323.0 217.5 60.6

142 531.6 288.1 52.5 345.2 224.7 59.9 115 403.6 403.6 52.0 305.3 305.3 60.3

142 417.2 417.2 50.9 315.3 315.3 59.4 115 414.9 413.1 52.2 305.9 305.9 60.3

142 433.7 420.3 51.1 315.9 315.9 59.4 115 497.1 351.2 53.6 331.7 295.6 60.8

142 530.5 363.0 52.5 350.0 301.5 59.9

PKG-PRC002-EN48

Page 49

Performance Water-Cooled Data

Table PD-28. SCWF/SIWF 46 Gross Cooling Capacity - 18,400 cfm, 138 gpm

Entering Air 75 F 85 F 95 F

EDB EWB Total Sensible Total Sensible Total Sensible

F F MBh MBh LWT MBh MBh LW T MBh MBh L WT

62 517 449 83.8 498 439 93.6 476 429 103.5

75 67 561 348 84.4 540 340 94.3 516 331 104.1

72 609 248 85.1 586 239 95.0 561 231 104.8 62 530 520 84.0 511 505 93.9 491 488 103.8

80 67 562 444 84.4 539 435 94.3 516 425 104.1

72 609 343 85.1 586 334 95.0 560 325 104.8 62 556 556 84.4 538 538 94.3 518 518 104.2

85 67 567 533 84.5 546 521 94.4 524 505 104.3

72 609 437 85.1 585 428 95.0 559 420 104.5

Chart PD-43. SCWF/SIWF 46 Fan Performance for CV or with VFD

46 Ton

Entering Water Temp

Note:

PKG-PRC002-EN 49

Chart PD-44. SCWF/SIWF 46 Fan Performance with Inlet Guide Vanes

Page 50

Performance Water-Cooled Data

52 Ton

Table PD-29. SCWF/SIWF 52 - Economizer Full Capacity - 20,800 cfm

Entering Water Temp

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 156 570.0 499.6 52.3 350.4 350.4 59.5

75 67 156 737.5 434.2 54.5 424.2 315.4 60.4

72 156 945.5 371.6 57.1 616.7 254.8 62.9

62 156 616.2 604.1 52.9 437.6 437.6 60.6

80 67 156 744.9 545.4 54.5 458.6 436.1 60.9

72 156 943.2 480.9 57.1 615.2 363.4 62.9

62 156 696.3 696.3 53.9 524.8 524.8 61.7

85 67 156 769.0 662.9 54.9 526.6 526.6 61.8

72 156 943.3 589.5 57.1 629.7 477.0 63.1

130 546.6 489.7 53.4 341.8 341.8 60.3

182 588.4 507.5 51.5 356.6 356.6 58.9 130 694.3 417.0 55.7 402.7 307.8 61.2

182 771.2 447.8 53.5 441.7 321.7 59.9 130 887.8 350.3 58.7 576.6 241.3 63.9

182 990.6 388.5 55.9 647.8 265.4 62.1 130 598.2 586.1 54.2 427.0 427.0 61.6

182 630.1 618.1 51.9 445.4 445.4 59.9 130 707.0 530.2 55.9 442.3 430.2 61.8

182 774.8 557.5 53.5 471.5 440.8 60.2 130 885.8 459.3 58.6 577.3 350.6 63.9

182 988.1 498.1 55.9 645.6 373.7 62.1 130 679.1 679.1 55.4 512.1 512.1 62.9

182 708.9 708.9 52.8 534.0 534.0 60.9 130 736.6 649.9 56.3 513.8 513.8 62.9

182 794.5 673.3 53.7 535.8 535.8 60.9 130 888.9 569.1 58.7 597.7 466.2 64.2

182 986.2 606.0 55.8 655.5 485.8 62.2

Table PD-30. SCWF/SIWF 52 - Economizer Low Capacity - 20,800 cfm

Entering Water Temp

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 156 378.3 367.7 49.9 245.6 245.6 58.1

75 67 156 488.3 307.6 51.3 277.6 230.6 58.6

72 156 625.0 249.6 53.0 406.6 174.9 60.2

62 156 426.4 426.4 50.5 306.9 306.9 58.9

80 67 156 489.3 394.7 51.3 309.0 295.9 59.0

72 156 623.6 336.3 53.0 405.2 261.7 60.2

62 156 487.2 487.2 51.2 368.3 368.3 59.7

85 67 156 508.5 488.6 51.5 369.0 369.0 59.7

72 156 622.2 422.8 53.0 411.1 350.7 60.3

130 363.7 361.8 50.6 238.6 238.6 58.7

182 390.1 372.6 49.3 250.9 250.9 57.8 130 461.2 297.3 52.1 264.6 226.1 59.1

182 509.6 315.8 50.6 288.6 234.5 58.2 130 589.2 236.9 54.1 382.8 167.2 60.9

182 653.2 259.8 52.2 425.4 181.1 59.7 130 413.9 413.9 51.4 298.2 298.2 59.6

182 435.8 435.8 49.8 313.5 313.5 58.4 130 464.9 385.4 52.2 299.4 286.4 59.6

182 509.2 402.3 50.6 316.7 303.6 58.5 130 588.0 323.6 54.0 381.6 254.0 60.9

182 651.7 346.4 52.2 423.9 267.8 59.7 130 473.1 473.1 52.3 357.9 357.9 60.5

182 497.9 497.9 50.5 376.1 376.1 59.1 130 488.4 480.9 52.5 358.6 358.6 60.5

182 524.8 494.9 50.8 376.9 376.9 59.1 130 586.7 410.2 54.0 391.6 344.3 61.0

182 650.2 432.9 52.1 427.1 355.9 59.7

PKG-PRC002-EN50

Page 51

Performance Water-Cooled Data

Table PD-31. SCWF/SIWF 52 Gross Cooling Capacity - 20,800 cfm, 156 gpm

Entering Air 75 F 85 F 95 F

EDB EWB Total Sensible Total Sensible Total Sensible

F F MBh MBh L WT MBh MBh L WT MBh MBh L WT

62 596 471 84.1 575 461 94.0 551 450 103.9

75 67 650 376 84.8 626 366 94.7 601 356 104.6

72 707 280 85.5 681 271 95.4 654 261 105.3 62 598 559 84.1 577 548 94.0 555 535 104.0

80 67 649 465 84.8 626 455 94.7 600 445 104.6

72 706 369 85.5 680 360 95.4 653 350 105.3 62 616 616 84.3 598 598 94.3 579 579 104.3

85 67 649 554 84.8 625 544 94.7 601 533 104.6

72 705 458 85.5 680 448 95.4 653 438 105.3

Chart PD-45. SCWF/SIWF 52 Fan Performance for CV or with VFD

52 Ton

Entering Water Temp

Note:

PKG-PRC002-EN 51

Chart PD-46. SCWF/SIWF 52 Fan Performance with Inlet Guide Vanes

Page 52

Performance Water-Cooled Data

58 Ton

Table PD-32. SCWF/SIWF 58 - Economizer Full Capacity - 23,200 cfm

Entering Water Temp

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 174 617.6 547.2 52.1 382.2 382.2 59.4

75 67 174 797.7 473.1 54.2 458.4 345.1 60.3

72 174 1022.3 402.5 56.8 666.1 276.4 62.7

62 174 670.3 656.9 52.7 477.4 477.4 60.5

80 67 174 805.6 595.9 54.3 497.4 478.9 60.7

72 174 1019.8 523.0 56.7 664.5 396.5 62.6

62 174 759.6 759.6 53.7 572.5 572.5 61.6

85 67 174 832.8 726.1 54.6 574.3 574.3 61.6

72 174 1019.7 643.1 56.7 680.5 522.2 62.8

145 592.9 536.8 53.2 372.8 372.8 60.1

186 626.2 550.8 51.7 385.2 385.2 59.1 145 751.8 454.9 55.4 435.8 337.1 61.0

186 813.5 479.4 53.7 466.5 348.0 60.0 145 961.6 380.3 58.3 623.9 262.3 63.6

186 1043.5 410.3 56.2 680.7 281.3 62.3 145 651.2 637.7 54.0 465.7 465.7 61.4

186 676.9 663.4 52.3 481.2 481.2 60.2 145 765.5 580.0 55.6 480.3 472.7 61.6

186 819.6 601.5 53.8 503.4 481.0 60.4 145 959.5 500.5 58.2 624.4 383.1 63.6

186 1040.9 531.0 56.2 678.6 401.3 62.3 145 740.7 740.7 55.2 558.6 558.6 62.7

186 765.8 765.8 53.2 577.0 577.0 61.2 145 798.6 712.4 56.0 560.3 560.3 62.7

186 844.7 730.9 54.1 578.9 578.9 61.2 145 962.1 621.6 58.3 646.7 510.8 63.9

186 1039.8 650.7 56.2 692.4 526.2 62.4

Table PD-33. SCWFSIWF 58 - Economizer Low Capacity - 23,200 cfm

Entering Water Temp

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 174 406.1 398.9 49.7 264.8 264.8 58.0

75 67 174 522.7 331.9 51.0 296.9 249.8 58.4

72 174 668.7 267.7 52.7 434.7 188.0 60.0

62 174 459.8 459.8 50.3 331.0 331.0 58.8

80 67 174 523.8 427.2 51.0 332.5 318.0 58.8

72 174 667.3 362.4 52.7 433.2 282.9 60.0

62 174 525.4 525.4 51.0 397.1 397.1 59.6

85 67 174 545.5 530.1 51.3 397.9 397.9 59.6

72 174 665.8 457.0 52.7 439.8 380.2 60.1

145 391.0 377.5 50.4 257.4 257.4 58.6

186 411.4 401.1 49.4 267.3 267.3 57.9 145 494.5 321.3 51.8 283.6 245.2 58.9

186 532.4 335.7 50.7 301.9 251.5 58.2 145 631.6 254.6 53.7 410.1 180.0 60.7

186 681.6 272.3 52.3 443.2 190.8 59.8 145 446.6 446.6 51.2 321.8 321.8 59.4

186 464.3 464.3 50.0 334.1 334.1 58.6 145 498.5 417.6 51.9 322.6 308.1 59.4

186 532.8 430.6 50.7 336.0 321.4 58.6 145 630.3 349.4 53.7 408.7 275.0 60.6

186 680.1 367.0 52.3 441.8 285.6 59.8 145 510.4 510.4 52.0 386.1 386.1 60.3

186 530.5 530.5 50.7 400.8 400.8 59.3 145 524.8 522.1 52.2 386.8 386.8 60.3

186 552.8 532.9 50.9 401.6 401.6 59.3 145 628.9 444.0 53.7 419.7 373.6 60.8

186 678.6 461.5 52.3 447.0 382.5 59.8

PKG-PRC002-EN52

Page 53

Performance Water-Cooled Data

Table PD-34. SCWF/SIWF 58 Gross Cooling Capacity - 23,200 cfm, 174 gpm

Entering Air 75 F 85 F 95 F

EDB EWB Total Sensible Total Sensible Total Sensible

F F MBh MBh L WT MBh MBh L WT MBh MBh L WT

62 663 571 83.9 637 559 93.8 610 547 103.7

75 67 720 444 84.6 692 433 94.4 662 421 104.3

72 782 316 85.3 751 306 95.2 719 294 105.0 62 675 674 84.1 653 653 94.0 629 629 103.9

80 67 720 564 84.6 692 553 94.4 662 541 104.3

72 781 436 85.3 751 425 95.2 719 414 105.0 62 712 712 84.5 689 689 94.4 665 665 104.3

85 67 725 679 84.6 698 666 94.5 669 652 104.4

72 781 555 85.3 750 545 95.1 718 533 105.0

Chart PD-47. SCWF/SIWF 58 Fan Performance for CV or with VFD

58 Ton

Entering Water Temp

Note:

PKG-PRC002-EN 53

Chart PD-48. SCWF/SIWF 58 Fan Performance with Inlet Guide Vanes

Page 54

Performance Water-Cooled Data

65 Ton

Table PD-35. SCWF/SIWF 65 - Economizer Full Capacity - 26,000 cfm

Entering Water Temp

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 195 670.0 600.7 51.9 417.5 417.5 59.3

75 67 195 863.7 516.4 53.9 495.9 378.4 60.1

72 195 1106.7 436.7 56.4 720.4 300.4 62.4

62 195 730.5 715.4 52.5 521.6 521.6 60.3

80 67 195 872.3 652.6 53.9 540.3 527.1 60.5

72 195 1104.0 569.9 56.3 718.5 433.6 62.4

62 195 829.9 829.9 53.5 625.5 625.5 61.4

85 67 195 903.1 797.2 54.3 627.4 627.4 61.4

72 195 1103.6 703.1 56.3 736.1 573.0 62.5

163 644.4 590.0 52.9 407.4 407.4 60.0

226 689.7 609.0 51.1 424.7 424.7 58.8 163 815.9 497.6 55.0 472.6 370.1 60.8

226 899.9 530.8 53.0 514.5 385.0 59.6 163 1043.3 413.8 57.8 676.7 285.8 63.3

226 1155.0 454.5 55.2 753.5 311.5 61.7 163 710.6 695.5 53.7 509.0 509.0 61.2

226 745.5 730.4 51.6 530.5 530.5 59.7 163 830.6 636.1 55.2 522.6 520.8 61.4

226 904.5 665.4 53.0 553.9 532.0 59.9 163 1041.0 546.6 57.8 676.9 419.8 63.3

226 1152.2 588.1 55.2 750.9 444.5 61.6 163 809.6 809.6 54.9 610.6 610.6 62.5

226 844.4 844.4 52.5 636.1 636.1 60.6 163 867.7 783.1 55.6 612.4 612.4 62.5

226 930.4 808.2 53.2 638.2 638.2 60.6 163 1043.6 680.9 57.8 701.3 561.3 63.6

226 1149.9 720.5 55.2 763.4 582.1 61.8

Table PD-36. SCWF/SIWF 65 - Economizer Low Capacity - 26,000 cfm

Entering Water Temp

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 195 436.1 433.3 49.5 285.8 285.8 57.9

75 67 195 559.7 358.7 50.7 317.8 271.0 58.3

72 195 715.9 287.3 52.3 464.9 202.3 59.8

62 195 496.2 496.2 50.1 357.2 357.2 58.7

80 67 195 561.0 463.0 50.8 358.2 342.1 58.7

72 195 714.3 391.0 52.3 463.4 306.1 59.8

62 195 567.1 567.1 50.8 428.5 428.5 59.4

85 67 195 585.6 575.9 51.0 429.3 429.3 59.4

72 195 712.8 494.6 52.3 470.8 412.7 59.8

163 420.9 405.9 50.2 278.1 278.1 58.4

226 448.0 438.2 49.0 291.4 291.4 57.6 163 531.1 347.9 51.5 304.3 266.3 58.7

226 581.7 367.0 50.1 329.0 274.9 57.9 163 678.2 274.0 53.3 440.0 194.2 60.4

226 744.8 297.6 51.6 484.1 208.5 59.3 163 482.5 482.5 50.9 347.6 347.6 59.3

226 506.4 506.4 49.5 364.2 364.2 58.2 163 535.3 453.2 51.6 348.2 348.2 59.3

226 581.3 470.7 50.1 365.8 349.7 58.2 163 676.7 377.8 53.3 438.6 298.1 60.4

226 743.2 401.3 51.6 482.5 312.3 59.3 163 551.5 551.5 51.8 417.1 417.1 60.1

226 578.6 578.6 50.1 436.9 436.9 58.9 163 564.7 547.6 51.9 417.9 417.9 60.1

226 602.0 582.2 50.3 437.7 437.7 58.9 163 675.3 481.4 53.3 450.5 406.1 60.5

226 741.5 504.8 51.6 486.9 417.9 59.3

PKG-PRC002-EN54

Page 55

Performance Water-Cooled Data

Table PD-37. SCWF/SIWF 65 Gross Cooling Capacity - 26,000 cfm, 196 gpm

Entering Air 75 F 85 F 95 F

EDB EWB Total Sensible Total Sensible Total Sensible

F F MBh MBh LWT MBh MBh LW T MBh MBh L WT

62 744 609 84.1 715 597 93.9 686 583 103.8

75 67 809 480 84.8 779 468 94.6 746 455 104.5

72 879 351 85.5 845 338 95.4 810 326 105.2 62 749 726 84.1 722 711 94.0 694 692 104.0

80 67 809 601 84.8 778 589 94.6 746 576 104.5

72 878 471 85.5 844 459 95.4 810 447 105.2 62 780 780 84.5 756 756 94.4 730 730 104.4

85 67 809 721 84.8 779 708 94.6 747 695 104.5

72 877 592 85.5 844 579 95.4 808 567 105.2

Chart PD-49. SCWF/SIWF 65 Fan Performance for CV or with VFD

65 Ton

Entering Water Temp

Note:

PKG-PRC002-EN 55

Chart PD-50. SCWF/SIWF 65 Fan Performance with Inlet Guide Vanes

Page 56

Performance Water-Cooled Data

72 Ton

Table PD-38. SCWF/SIWF 72 - Economizer Full Capacity - 28,000 cfm

Entering Water Temp

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 216 719.4 652.3 51.7 451.1 451.1 59.2

75 67 216 925.8 557.8 53.6 531.1 410.4 59.9

72 216 1185.9 469.3 56.0 771.3 323.1 62.1

62 216 787.8 771.1 52.3 563.5 563.5 60.2

80 67 216 934.9 707.0 53.7 580.8 573.8 60.4

72 216 1183.0 614.7 56.0 769.1 469.2 62.1

62 216 896.7 896.7 53.3 675.8 675.8 61.3

85 67 216 969.2 865.7 54.0 677.8 677.8 61.3

72 216 1182.3 760.6 55.9 788.3 621.9 62.3

180 692.2 640.9 52.7 440.0 440.0 59.9

226 725.9 655.0 51.4 453.6 453.6 59.0 180 874.7 537.8 54.7 506.6 401.7 60.6

226 937.7 562.5 53.3 537.2 412.5 59.8 180 1117.6 443.9 57.4 724.9 307.7 63.1

226 1201.8 475.0 55.6 782.2 326.7 61.9 180 766.5 749.8 53.5 549.8 549.8 61.1

226 792.8 776.1 52.0 566.6 566.6 60.0 180 890.5 689.6 54.9 562.1 542.9 61.2

226 945.5 711.2 53.4 585.3 575.4 60.2 180 1114.9 589.6 57.4 724.9 454.5 63.1

226 1198.9 620.6 55.6 779.7 472.7 61.9 180 874.4 874.4 54.7 659.4 659.4 62.3

226 901.7 901.7 53.0 679.5 679.5 61.0 180 931.6 850.8 55.4 661.3 661.3 62.3

226 978.2 869.3 53.7 681.6 681.6 61.0 180 1118.3 737.1 57.4 751.4 609.6 63.3

226 1197.5 766.2 55.6 797.1 624.8 62.1

Table PD-39. SCWF/SIWF 72 - Economizer Low Capacity - 28,000 cfm

Entering Water Temp

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 216 464.1 447.5 49.3 305.3 305.3 57.8

75 67 216 593.9 383.7 50.5 337.1 291.0 58.1

72 216 759.4 305.5 52.0 492.8 215.6 59.6

62 216 530.2 530.2 49.9 381.5 381.5 58.5

80 67 216 595.3 496.7 50.5 382.2 364.5 58.5

72 216 757.7 417.8 52.0 491.2 328.0 59.5

62 216 605.9 605.9 50.6 457.8 457.8 59.2

85 67 216 622.8 619.2 50.8 458.6 458.6 59.2

72 216 756.1 529.9 52.0 499.3 443.4 59.6

180 448.3 431.7 50.0 297.1 297.1 58.3

226 467.9 467.4 49.1 307.1 307.1 57.7 180 564.0 372.5 51.3 323.1 286.1 58.6

226 601.0 386.4 50.3 340.6 292.2 58.0 180 720.0 291.7 53.0 466.8 207.2 60.2

226 768.7 308.8 51.8 499.0 217.5 59.4 180 515.6 515.6 50.7 371.4 371.4 59.1

226 533.5 533.5 49.7 383.9 383.9 58.4 180 568.5 486.6 51.3 372.0 372.0 59.1

226 601.8 499.1 50.3 384.7 366.9 58.4 180 718.5 404.1 53.0 465.3 319.7 60.2

226 767.0 421.1 51.8 497.3 330.0 59.4 180 589.3 589.3 51.5 445.6 445.6 60.0

226 609.7 609.7 50.4 460.6 460.6 59.1 180 601.1 582.4 51.7 446.4 446.4 60.0

226 628.0 621.2 50.6 461.4 461.4 59.1 180 716.9 516.2 53.0 478.3 436.6 60.3

226 765.4 533.2 51.8 504.4 445.1 59.5

PKG-PRC002-EN56

Page 57

Performance Water-Cooled Data

Table PD-40. SCWF/SIWF 72 Gross Cooling Capacity - 28,800 cfm, 216 gpm

Entering Air 75 F 85 F 95 F

EDB EWB Total Sensible Total Sensible Total Sensible

F F MBh MBh LWT MBh MBh LW T MBh MBh L WT

62 799 690 83.7 768 675 93.6 735 660 103.4

75 67 868 536 84.3 834 522 94.2 798 509 104.0

72 941 381 85.0 905 368 94.9 866 355 104.7 62 814 812 83.8 787 788 93.7 758 758 103.7

80 67 868 681 84.3 833 668 94.2 798 653 104.0

72 941 526 85.0 904 514 94.8 866 500 104.7 62 859 859 84.2 832 832 94.2 802 802 104.1

85 67 874 819 84.4 841 803 94.3 807 786 104.1

72 940 670 85.0 904 658 94.8 865 644 104.7

Chart PD-51. SCWF/SIWF 72 Fan Performance for CV or with VFD

72 Ton

Entering Water Temp

Note:

PKG-PRC002-EN 57

Chart PD-52. SCWF/SIWF 72 Fan Performance with Inlet Guide Vanes

Page 58

Performance Water-Cooled Data

80 Ton

Table PD-41. SCWF/SIWF 80 - Economizer Full Capacity - 29,800 cfm

Entering Water Temp

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 240 746.6 674.5 51.2 466.7 466.7 58.9

75 67 240 966.0 579.6 53.1 552.8 424.9 59.6

72 240 1238.3 489.6 55.3 805.9 336.7 61.7

62 240 815.5 798.2 51.8 583.0 583.0 59.9

80 67 240 973.1 732.5 53.1 601.8 592.6 60.0

72 240 1235.3 639.5 55.3 803.2 487.1 61.7

62 240 927.8 927.8 52.7 699.1 699.1 60.8

85 67 240 1006.1 895.3 53.4 701.2 701.2 60.8

72 240 1233.4 789.5 55.3 820.2 643.6 61.8

200 719.8 663.3 52.2 456.0 456.0 59.6

248 751.3 676.5 51.1 468.4 468.4 58.8 200 915.9 559.9 54.2 527.8 416.0 60.3

248 974.5 583.0 52.9 557.1 426.4 59.5 200 1171.5 464.7 56.7 760.6 321.6 62.6

248 1249.7 493.8 55.1 813.6 339.3 61.6 200 794.7 777.5 52.9 569.7 569.7 60.7

248 819.0 801.7 51.6 585.1 585.1 59.7 200 929.2 715.3 54.3 583.4 563.2 60.8

248 980.7 735.5 52.9 605.0 593.8 59.9 200 1168.7 614.9 56.7 759.4 472.5 62.6

248 1246.6 643.7 55.1 810.8 489.6 61.5 200 906.2 906.2 54.1 683.3 683.3 61.8

248 931.3 931.3 52.5 701.7 701.7 60.7 200 969.0 880.5 54.7 685.2 685.2 61.9

248 1012.5 897.8 53.2 703.8 703.8 60.7 200 1170.1 766.1 56.7 783.6 631.4 62.8

248 1244.3 793.5 55.0 826.5 645.7 61.7

Table PD-42. SCWF/SIWF 80 - Economizer Low Capacity - 29,800 cfm

Entering Water Temp

Entering Air 45 F 55 F

EDB EWB Flow Total Sensible LWT Total Sensible LWT

F F gpm MBh MBh F MBh MBh F

62 240 479.5 462.3 49.0 314.9 314.9 57.6

75 67 240 616.7 396.5 50.1 349.2 299.7 57.9

72 240 788.8 316.9 51.6 511.9 223.2 59.3

62 240 547.1 547.1 49.6 393.5 393.5 58.3

80 67 240 617.2 512.1 50.1 394.3 375.9 58.3

72 240 787.1 432.2 51.6 510.2 338.7 59.3

62 240 625.1 625.1 50.2 472.2 472.2 58.9

85 67 240 643.6 637.3 50.4 473.0 473.0 58.9

72 240 785.4 547.2 51.5 517.0 456.6 59.3

200 464.0 446.9 49.6 307.0 307.0 58.1

248 482.2 480.6 48.9 316.2 316.2 57.6 200 587.4 385.5 50.9 334.7 294.7 58.3

248 621.7 398.4 50.0 351.7 300.6 57.8 200 750.3 303.3 52.5 486.5 215.0 59.9

248 795.4 319.2 51.4 516.3 224.6 59.2 200 533.0 533.0 50.3 383.7 383.7 58.8

248 549.4 549.4 49.4 395.2 395.2 58.2 200 590.6 502.1 50.9 384.4 384.4 58.8

248 621.8 513.9 50.0 396.0 377.7 58.2 200 748.7 418.7 52.5 484.9 330.5 59.8

248 793.7 434.5 51.4 514.6 340.1 59.1 200 609.1 609.1 51.1 460.4 460.4 59.6

248 627.8 627.8 50.1 474.1 474.1 58.8 200 622.3 602.9 51.2 461.2 461.2 59.6

248 647.3 638.7 50.2 475.0 475.0 58.8 200 747.1 533.8 52.5 496.6 450.0 60.0

248 791.9 549.5 51.4 520.6 457.8 59.2

PKG-PRC002-EN58

Page 59

Performance Water-Cooled Data

Table PD-43. SCWF/SIWF 80 Gross Cooling Capacity - 29,800 cfm, 240 gpm

Entering Air 75 F 85 F 95 F

EDB EWB Total Sensible Total Sensible Total Sensible

F F MBh MBh L WT MBh MBh L WT MBh MBh L WT

62 891 761 83.7 856 746 93.6 819 729 103.4

75 67 966 590 84.3 928 575 94.2 887 559 104.0

72 1049 419 85.0 1007 405 94.8 963 389 104.7 62 910 896 83.8 880 867 93.8 847 834 103.7

80 67 967 752 84.3 929 737 94.2 888 721 104.0

72 1048 579 85.0 1006 565 94.8 963 550 104.7 62 961 947 84.3 930 916 94.2 896 883 104.1

85 67 975 908 84.4 938 890 94.3 899 871 104.1

72 1047 740 85.0 1006 725 94.8 963 710 104.7

Chart PD-53. SCWF/SIWF 80 Fan Performance for CV or with VFD

Entering Water Temp

80 Ton

Note:

PKG-PRC002-EN 59

Chart PD-54. SCWF/SIWF 80 Fan Performance with Inlet Guide Vanes

Page 60

Performance Air-Cooled Data

Table PD-44. SCRF/SIRF 20 Gross Cooling Capacity - 10,000 cfm - Air Cooled

EDB EWB Tot Sen Tot Sen Tot Sen Tot Sen Tot Sen

F F MBh MBh MBh MBh MBh MBh MBh MBh MBh MBh

70 62 287.5 191.1 277.4 186.6 266.5 181.9 255.0 176.9 242.6 171.7

67 313.6 139.5 302.6 135.2 290.9 130.6 278.4 125.7 265.1 120.6 62 287.3 240.4 277.4 235.9 266.8 231.1 255.4 226.0 243.4 220.5

75 67 313.3 188.7 302.4 184.3 290.7 179.7 278.2 174.8 264.9 169.7

72 341.1 136.8 329.2 132.5 316.5 128.1 303.0 123.3 288.7 118.4 62 291.4 286.6 282.3 280.6 272.9 273.1 263.2 263.3 252.7 252.7

80 67 313.1 237.6 302.1 233.2 290.4 228.6 278.0 223.7 264.8 218.5

72 340.8 185.6 328.9 181.3 316.2 176.8 302.7 172.0 288.4 167.1 62 306.9 306.9 298.1 298.2 288.7 288.7 278.5 278.6 267.6 267.7

85 67 314.5 285.8 303.9 281.1 292.7 275.9 280.9 270.2 268.5 263.6

72 340.5 234.2 328.6 229.9 316.0 225.3 302.5 220.5 288.2 215.5

Chart PD-55. SCRF/SIRF 20 Fan Performance for CV or with VFD

75 F 85 F 95 F 105 F 115 F

Entering Ambient Air Temperature

20 Ton

Note:

Chart PD-56. SCRF/SIRF 20 Fan Performance with Inlet Guide Vanes

PKG-PRC002-EN60

Page 61

Performance Air-Cooled Data

Table PD-45. SCRF/SIRF 25 Gross Cooling Capacity - 11,600 cfm

EDB EWB Tot Sen Tot Sen Tot Sen Tot Sen Tot Sen

F F MBh MBh MBh MBh MBh MBh MBh MBh MBh MBh

70 62 336.8 214.8 325.2 209.5 312.8 204.0 299.6 198.1 285.7 192.0

67 367.8 161.8 355.1 156.6 341.7 151.1 327.5 145.5 312.4 139.5 62 336.5 265.4 324.9 260.1 312.5 254.5 299.4 248.7 285.5 242.5

75 67 367.4 212.3 354.8 207.1 341.4 201.6 327.2 195.9 312.1 189.9

72 400.2 158.7 386.5 153.6 372.0 148.3 356.6 142.8 340.3 137.0 62 337.8 315.3 326.7 309.5 315.1 303.1 303.0 296.0 290.7 287.2

80 67 367.1 262.6 354.5 257.3 341.1 251.8 326.9 246.1 311.9 240.0

72 399.9 208.8 386.2 203.7 371.7 198.4 356.3 192.8 340.0 187.0 62 349.9 350.0 340.3 340.4 329.9 329.9 318.7 318.7 306.7 306.8

85 67 366.9 312.6 354.5 307.3 341.3 301.6 327.4 295.6 312.9 289.1

72 399.6 258.8 385.9 253.6 371.3 248.2 356.0 242.6 339.8 236.7

Chart PD-57. SCRF/SIRF 25 Fan Performance for CV or with VFD

75 F 85 F 95 F 105 F 115 F

Entering Ambient Air Temperature

25 Ton

Note:

1. Fan curves include refrigerant coil and internal cabinet static losses. To determine static pressure to be used with these curves, add filter, economizer, flexible horizontal and heat discharge pressure drops to external duct static pressure.

PKG-PRC002-EN 61

Chart PD-58. SCRF/SIRF 25 Fan Performance with Inlet Guide Vanes

Page 62

Performance Air-Cooled Data

Table PD-46. SCRF/SIRF 29 Gross Cooling Capacity - 12,800 cfm

EDB EWB Tot Sen Tot Sen Tot Sen Tot Sen Tot Sen

F F MBh MBh MBh MBh MBh MBh MBh MBh MBh MBh

70 62 370.7 252.4 356.6 246.3 341.7 239.9 326.1 233.2 309.7 226.3

67 404.3 181.4 388.9 175.4 372.8 169.2 355.9 162.7 338.2 156.0 62 371.5 320.3 357.6 314.0 343.0 307.3 327.8 300.3 311.9 292.7

75 67 403.9 249.1 388.6 243.1 372.5 236.9 355.6 230.3 337.9 223.6

72 439.4 177.7 422.8 171.9 405.3 165.8 387.0 159.5 367.9 153.0 62 379.9 377.1 367.4 366.5 354.5 354.6 341.1 341.1 326.8 326.8

80 67 403.9 316.7 388.8 310.6 372.8 304.2 356.1 297.5 338.7 290.5

72 439.1 245.0 422.4 239.1 405.0 233.0 386.7 226.6 367.6 220.1 62 400.8 400.9 388.3 388.4 375.1 375.2 361.1 361.1 346.3 346.3

85 67 407.3 382.3 392.7 375.3 377.6 367.3 362.5 356.6 346.8 344.2

72 438.8 312.0 422.2 306.0 404.8 299.9 386.7 293.4 367.7 286.8

Chart PD-59. SCRF/SIRF 29 Fan Performance for CV or with VFD

75 F 85 F 95 F 105 F 115 F

Entering Ambient Air Temperature

29 Ton

Note:

Chart PD-60. SCRF/SIRF 29 Fan Performance with Inlet Guide Vanes

PKG-PRC002-EN62

Page 63

Performance Air-Cooled Data

Table PD-47. SCRF/SIRF 30 Gross Cooling Capacity - 14,000 cfm

EDB EWB Tot Sen Tot Sen Tot Sen Tot Sen Tot Sen

F F MBh MBh MBh MBh MBh MBh MBh MBh MBh MBh

70 62 415.4 268.4 401.2 262.0 386.0 255.3 369.6 248.1 352.1 240.5

67 453.3 200.0 437.9 193.7 421.4 187.1 403.8 180.2 384.9 172.8 62 415.0 333.7 400.9 327.3 385.6 320.5 369.3 313.3 352.0 305.6

75 67 452.9 265.1 437.6 258.9 421.1 252.2 403.4 245.2 384.6 237.8

72 493.3 196.1 476.6 190.1 458.7 183.6 439.7 176.8 419.4 169.7 62 417.7 397.5 404.4 390.3 390.2 382.3 375.4 372.9 360.4 360.8

80 67 452.6 330.0 437.2 323.7 420.7 317.0 403.1 309.9 384.3 302.4

72 492.9 260.8 476.2 254.7 458.4 248.2 439.3 241.3 419.0 234.1 62 435.7 435.8 423.7 423.7 410.7 410.7 396.7 396.7 381.6 381.6

85 67 452.7 394.5 437.7 388.0 421.7 381.1 404.7 373.5 386.7 365.2

72 492.5 325.2 475.8 319.0 458.0 312.5 438.9 305.6 418.7 298.3

Chart PD-61. SCRF/SIRF 30 Fan Performance for CV or with VFD

75 F 85 F 95 F 105 F 115 F

Entering Ambient Air Temperature

30 Ton

Note:

PKG-PRC002-EN 63

Chart PD-62. SCRF/SIRF 30 Fan Performance with Inlet Guide Vanes

Page 64

Performance Air-Cooled Data

Table PD-48. SCRF/SIRF 35 Gross Cooling Capacity - 15,200 cfm

EDB EWB Tot Sen Tot Sen Tot Sen Tot Sen Tot Sen

F F MBh MBh MBh MBh MBh MBh MBh MBh MBh MBh

70 62 440.9 298.8 424.9 291.9 407.8 284.5 389.6 276.8 370.3 268.6

67 480.9 215.4 463.5 208.6 445.0 201.4 425.4 193.9 404.5 186.0 62 441.7 378.7 425.9 371.6 409.1 364.0 391.4 355.9 372.6 347.1

75 67 480.6 295.0 463.2 288.2 444.7 281.0 425.0 273.4 404.2 265.4

72 523.1 211.1 504.2 204.5 484.1 197.5 462.9 190.2 440.4 182.5 62 450.4 450.2 436.9 437.0 422.3 422.4 406.7 406.7 389.9 390.0

80 67 480.4 374.5 463.2 367.6 444.9 360.2 425.5 352.5 405.0 344.3

72 522.7 290.2 503.8 283.5 483.8 276.5 462.5 269.1 440.1 261.4 62 476.1 476.2 462.0 462.1 446.9 446.9 430.7 430.7 413.3 413.3

85 67 484.2 451.9 467.5 444.2 450.0 435.8 431.7 426.0 413.2 413.3

72 522.3 369.0 503.4 362.2 483.4 355.1 462.3 347.7 440.1 339.8

Chart PD-63. SCRF/SIRF 35 Fan Performance for CV or with VFD

75 F 85 F 95 F 105 F 115 F

Entering Ambient Air Temperature

35 Ton

Note:

Chart PD-64. SCRF/SIRF 35 Fan Performance with Inlet Guide Vanes

PKG-PRC002-EN64

Page 65

Performance Air-Cooled

Data

Table PD-49. SCRF/SIRF 40 Gross Cooling Capacity - 18,400 cfm

EDB EWB Tot Sen Tot Sen Tot Sen Tot Sen Tot Sen

F F MBh MBh MBh MBh MBh MBh MBh MBh MBh MBh

70 62 512.1 343.9 493.5 335.8 473.8 327.2 452.9 318.3 430.8 308.9

67 559.2 249.9 539.0 241.9 517.6 233.6 495.0 224.8 471.1 215.7 62 512.3 434.1 494.0 425.8 474.6 417.0 454.1 407.6 432.6 397.5

75 67 558.7 339.8 538.5 331.8 517.2 323.4 494.6 314.6 470.7 305.4

72 608.7 245.2 586.8 237.4 563.6 229.2 539.0 220.7 513.2 211.8 62 522.3 509.6 505.7 496.5 488.0 482.5 469.3 467.3 449.8 450.1

80 67 558.2 429.4 538.1 421.3 516.9 412.9 494.5 404.0 470.9 394.6

72 608.2 334.4 586.3 326.6 563.1 318.4 538.6 309.8 512.8 300.8 62 548.1 548.2 532.0 532.0 514.7 514.8 496.2 496.3 476.6 476.6

85 67 561.3 516.7 542.0 507.6 521.9 497.2 501.4 483.4 480.1 467.3

72 607.7 423.4 585.8 415.5 562.6 407.2 538.1 398.5 512.4 389.5

Chart PD-65. SCRF/SIRF 40 Fan Performance for CV or with VFD

75 F 85 F 95 F 105 F 115 F

Entering Ambient Air Temperature

40 Ton

Note:

PKG-PRC002-EN 65

Chart PD-66. SCRF/SIRF 40 Fan Performance with Inlet Guide Vanes

Page 66

Performance Air-Cooled Data

Table PD-50. SCRF/SIRF 50 Gross Cooling Capacity - 23,200 cfm

EDB EWB Tot Sen Tot Sen Tot Sen Tot Sen Tot Sen

F F MBh MBh MBh MBh MBh MBh MBh MBh MBh MBh

70 62 658.4 438.9 633.9 428.2 608.4 417.1 581.6 405.6 553.7 393.7

67 719.0 320.1 692.5 309.7 664.9 298.9 636.0 287.7 605.8 276.2 62 657.8 552.9 633.5 542.1 608.4 531.0 582.2 519.4 555.0 507.1

75 67 718.4 433.7 692.0 423.2 664.3 412.3 635.4 401.1 605.3 389.4

72 783.0 314.2 754.3 304.0 724.3 293.5 693.1 282.6 660.5 271.3 62 667.2 660.8 645.4 645.5 623.7 623.8 601.1 601.1 577.2 577.3

80 67 717.8 546.8 691.4 536.3 663.8 525.3 634.9 514.0 604.7 502.2

72 782.3 426.9 753.7 416.7 723.7 406.1 692.5 395.1 659.9 383.7 62 703.3 703.4 682.2 682.3 659.9 660.0 636.5 636.5 611.7 611.8

85 67 720.3 659.1 694.8 647.9 668.4 635.9 641.1 622.9 613.1 608.0

72 781.7 539.2 753.0 528.9 723.1 518.2 691.9 507.1 659.3 495.7

Chart PD-67. SCRF/SIRF 50 Fan Performance for CV or with VFD

75 F 85 F 95 F 105 F 115 F

Entering Ambient Air Temperature

50 Ton

Note:

Chart PD-68. SCRF/SIRF 50 Fan Performance with Inlet Guide Vanes

PKG-PRC002-EN66

Page 67

Performance Air-Cooled Data

Table PD-51. SCRF/SIRF 60 Gross Cooling Capacity - 29,800 cfm

EDB EWB Tot Sen Tot Sen Tot Sen Tot Sen Tot Sen

F F MBh MBh MBh MBh MBh MBh MBh MBh MBh MBh

70 62 874.8 591.1 840.5 576.2 804.8 560.8 767.6 544.9 728.7 528.5

67 954.6 427.0 917.3 412.4 878.5 397.4 838.1 381.9 796.1 366.0 62 874.6 748.6 840.9 733.7 805.9 718.3 769.5 702.2 731.9 685.6

75 67 953.8 583.7 916.5 569.1 877.8 553.9 837.4 538.3 795.4 522.2

72 1038.1 418.6 997.7 404.3 955.6 389.7 911.8 374.6 866.4 359.1 62 889.2 889.3 860.2 860.3 829.8 829.9 797.8 797.9 764.2 764.3

80 67 953.0 739.9 915.8 725.1 877.0 709.8 836.7 694.1 795.3 678.0

72 1037.3 574.2 996.9 559.8 954.8 545.0 911.1 529.8 865.7 514.1 62 939.6 939.6 909.5 909.6 877.8 877.9 844.6 844.7 809.7 809.8

85 67 958.7 895.7 923.0 880.3 886.0 863.8 848.4 845.4 809.7 809.8

72 1036.5 729.2 996.1 714.7 954.0 699.7 910.3 684.4 865.0 668.6

Chart PD-69. SCRF/SIRF 60 Fan Performance for CV or with VFD

75 F 85 F 95 F 105 F 115 F

Entering Ambient Air Temperature

60-Ton

Note:

PKG-PRC002-EN 67

Chart PD-70. SCRF/SIRF 60 Fan Performance with Inlet Guide Vanes

Page 68

Performance

Self-Contained

Data Heating Coils

Table PD-52. Hot Water Heating Capacity

Unit Airflow Capacity LAT Flow Capacity LAT Flow

Size cfm MBh F gpm MBh F gpm 20 tons 8000 237.2 87.3 23.7 287.6 93.2 28.7 22 tons 8800 249.1 86.1 24.9 302.2 91.6 30.1 25 tons 10000 266.2 84.5 26.6 323.0 89.8 32.2 29 tons 11600 287.3 82.8 28.7 348.7 87.7 34.8 32 tons 12800 302.2 81.8 30.2 366.8 86.4 36.6 35 tons 14000 316.2 80.8 31.6 384.0 85.3 38.3 38 tons 15200 329.6 80.0 32.9 400.2 84.3 39.9 42 tons 16800 471.2 85.9 47.1 567.8 91.2 56.6 46 tons 18400 494.0 84.8 49.4 595.3 89.8 59.3 52 tons 20800 526.4 83.3 52.6 634.5 88.1 63.2 58 tons 23200 556.7 82.1 55.6 671.2 86.7 66.9 65 tons 26000 589.9 80.9 58.9 711.2 85.2 70.9 72 tons 28800 620.9 79.9 62.0 748.7 84.0 74.6 80 tons 29800 631.5 79.5 63.1 761.5 83.6 75.9

Based on 60 degree F EAT with a 20 degree F water temperature differance.

Table PD-53. Steam Heating Capacity

Unit Airflow Capacity LAT Capacity LAT Capacity LAT

Size cfm MBh F MBh F MBh F 20 tons 8000 257.4 89.7 271.6 91.3 291.6 93.6 22 tons 8800 272.2 88.5 287.1 90.1 308.3 92.3 25 tons 10000 292.7 87.0 308.8 88.5 331.6 90.6 29 tons 11600 317.6 85.2 335.1 86.6 359.9 88.6 32 tons 12800 334.7 84.1 353.2 85.4 379.3 87.3 35 tons 14000 350.5 83.1 369.9 84.4 397.3 86.2 38 tons 15200 365.3 82.2 385.4 83.4 414.0 85.1 42 tons 16800 500.5 87.5 528.1 89.0 567.1 91.1 46 tons 18400 526.7 86.4 555.7 87.8 596.8 89.9 52 tons 20800 563.0 85.0 594.1 86.3 638.1 88.3 58 tons 23200 596.3 83.7 629.3 85.0 675.9 86.9 65 tons 26000 631.7 82.4 666.7 83.6 716.2 85.4 72 tons 28800 663.9 81.3 700.7 82.4 752.8 84.1 80 tons 29800 674.7 80.9 712.1 82.0 765.1 83.7

Based on 60 degree F EAT

180 F 200 F

2 psi 5 psi 10 psi

PKG-PRC002-EN68

Page 69

Controls

Signature Series Self-Contained Units

We’ve redesigned the self-contained unit with the latest control technology to make it even better! New modular DDC controls with human interface (HI) panel make self-contained units more flexible and easier to operate.

Controls are Trane-designed to work with Trane equipment for optimum efficiency. The factory installs and commissions each control component to ensure simple and reliable operation.

Furthermore, the DDC control’s modular design allows greater application flexibility using up to twelve different modules, dependent upon unit options. You can order exactly what the job requires as options, instead of one large control package. And since unit features are distributed among multiple printed circuit boards, field replacement is easy.

Depending upon unit options, IntelliPak units can operate as:

1) stand-alone

2) interface with Trane’s Tracer management system

3) interface with a generic (non-Trane) building management system.

building

Available Input and Output Points

RTM Module (on all units)

Binary inputs

• Emergency stop

• External auto/stop

• Unoccupied/occupied

• Dirty filter

• VAV changeover with hydronic heat

• Units with staged heat interface have 13 additional points

Binary outputs

• VAV box drive max (VAV units only)

• CV Unoccupied mode indicator (CV units only)

• Alarm

• Fan run request

• Water pump request (water-cooled only)

• Units with staged heat interface have 13 additional points

Analog input

• Airside economizer damper minimum position

Analog output

• Outside air damper actuator

Heat Module Option

• Analog output

Generic BAS Option (GBAS)

Binary inputs

• Demand limit contacts

Binary outputs

• Dirty filter relay

• Refrigeration fail relay

• Heat fail relay

• Supply fan fail relay

• Active diagnostics

Analog inputs

• Occupied zone cooling setpoint

• Occupied zone heating setpoint

• Unoccupied zone cooling setpoint

• Unoccupied zone heating setpoint or minimum outside air flow setpoint

• Supply air cooling setpoint

• Supply air heating setpoint

• Supply air static pressure setpoint

Comparative Enthalpy Module (ECEM) Option

Analog inputs

• Return air temperature

• Return air humidity

Ventilation Override Module (VOM) Option

Binary inputs

• VOM mode A, unit off

• VOM mode B, pressurize

• VOM mode C, exhaust

• VOM mode D, purge

• VOM mode E, purge w/duct pressure control

Binary output

• V.O. relay

Interface (TCI ) option

Tracer

Binary input

• Enthalpy enable airside economizer

Binary outputs

• Compressor on/off status

• Ventilation status

• Condenser water flow status

• Heat status

Analog outputs

• Supply air pressure

• Supply air temperature

• Suction temperature of each circuit

• Entering economizer water temperature

• Zone temperature

• Entering condenser water temperature

• Supply air temperature reset signal

• Morning warmup sensor temperature

• Entering air temperature

Analog inputs

• Cooling and heating setpoints

• VAV discharge air temperature setpoints

• Supply air pressure setpoint

• Cooling and heating enable/disable

• Air economizer enable/disable

• Airside economizer minimum position

• Unit priority shutdown

PKG-PRC002-EN 69

Page 70

Standard IntelliPak® Unit Control Features

All set-up parameters are preset from the factory, requiring less start-up time during installation.

The human interface panel is easy to read and requires less time for building maintenance personnel to learn to interact with the unit. It features a clear language display (in English, Spanish, or French) that shows all of the selfcontained unit control parameters, such as system on/off; demand limiting type; night setback setpoints; and many other setpoints. All adjustments are done through the human interface key-pad. Also the human interface panel allows you to monitor diagnostic points such as; sensor failures; supply airflow loss; and inoperative refrigerant circuit. No special tools are required for servicing the unit. Diagnostics are held in memory, even during power loss. This allows the operator/servicer to diagnose the failure root cause.

IntelliPak

• Unit mounted human interface panel with a two line x 40 character language (English, Spanish, or French) display and a 16-function keypad that includes CUSTOM, DIAGNOSTICS, and SERVICE TEST MODE menu keys on IntelliPak units

• Compressor lead/lag

• FROSTAT units

• Daytime warmup (occupied mode) on units with heating options and morning warmup operation on all units

• Supply air static overpressurization protection on units with inlet guide vanes and variable frequency drives (VFD’s)

• Supply airflow proving

• Supply air tempering control with heating option

• Supply air heating control on VAV with hydronic heating option

• Mappable sensors and setpoint sources

• Occupied/unoccupied switching

• Timed override activation

• Programmable water purge during unoccupied mode

Unit Features

™

coil frost protection on all

Controls

Human Interface Panel (HI)

The human interface panel provides a 16-button keypad for monitoring, setting, editing and controlling. The HI panel is mounted in the unit’s main control panel, accessible through the unit’s control panel door.

The optional remote-mount version of the human interface (RHI) panel has all the functions of the unit-mounted version, except for the service mode. To use a RHI, the unit must be equipped with the remote HI interface option (model number digit 32 = 2), which includes an interprocessor communications bridge (IPCB). The RHI can be located up to 1,000 feet (304.8 m) from the unit. A single RHI can be used to monitor and control up to four self-contained units, each containing an IPCB.

The main menus of the human interface panels are:

•

STATUS

temperatures, pressures, humidities, setpoints, input and output status.

• CUSTOM

customize a status report - consisting of up to four screens of the data available in the main Status menu.

SETPOINT

•

preset default setpoints.

is used to monitor all

key allows the user to

is used to edit all factory

Human interface panel is available as unit or remote mounted.

•

DIAGNOSTICS

review active and historical lists of diagnostic conditions. A total of 49 different diagnostics can be read at the human interface (HI) panel and the last 20 diagnostics can be held in an active history buffer log at the HI panel.

SETUP

•

allows the user to edit control parameters, sensor selections, setpoint source selections, output definitions, and numerous other points in this menu. All points have factory preset values to keep unnecessary editing to a minimum.

CONFIGURATION

factory-preset unit configuration information. This information can be edited only if certain options are fieldinstalled or deleted from the unit. For example, if a Trane communication interface (TCI) module or ventilation override module (VOM) were fieldinstalled, the unit configuration will require editing to reflect those options for proper unit operation.

SERVICE

troubleshooting the unit by selecting component control outputs such as compressors, fans, damper position, etc. This menu is accessible only at the unit-mounted human interface panel.

allows the user to

allows changing of

allows servicing or

PKG-PRC002-EN70

Page 71

Sequence of

Control Sequences of Operation

Morning Warmup

This feature is available on all types of factory-installed heat units and on units with no heat. This function may still be selected to support systems with heat sources not provided by the selfcontained unit. At the conclusion of unoccupied mode, the selected zone is heated to the user-defined morning warmup setpoint. The unit is then released to occupied mode. There are two types of morning warmup: full capacity or cycling capacity.

• Full Capacity Morning Warmup (MWU)

Full capacity morning warmup uses full heating capacity to heat the zone as quickly as possible. Full heating capacity is provided until the morning warmup setpoint is met. At this point, the unit is released to daytime mode.

• Cycling Capacity Morning Warmup (MWU)

Cycling capacity morning warmup provides gradual heating to overcome “building sink” as the zone is heated. Normal zone temperature control with varying capacity is used to raise the zone temperature to the MWU zone temperature setpoint. Cycling capacity MWU will operate until MWU setpoint is reached or for 60 minutes. Then the unit switches to occupied mode. Cooling will suspend untill building load conditions exceed the MWU setpoint of 3 F (1.7 C), which is field adjustable.

Note: When using the morning warmup option in a heating/cooling self-contained unit in a VAV system, it is important to maintain airflow through the unit. This can be accomplished by electrically tying the VAV boxes to the VAV drive max output relay contacts on the unit’s RTM module board or by using changeover thermostats. Either of these methods will assure adequate airflow through the unit and satisfactory heating.

Ventilation Override (VOM) Option

The user can customize up to five different override sequences for purposes of ventilation override control. If more than one VOM sequence is being requested, the sequence with the highest priority is initiated first. Priority schedule

Controls

is that sequence “A” (unit off) is first, with sequence “E” (purge with duct pressure control) last.

• UNIT OFF sequence “A”

When complete system shut down is required, the following sequence can be used.

•Supply fan – Off

•Supply fan VFD – Off (0 Hz) (if equipped)

•Inlet guide vanes – closed (if equipped)

•Outside air dampers – Closed

•Heat – all stages – Off, Modulating heat output at 0 vdc

•Occupied/Unoccupied output – Deenergized

•VO relay – Energized

•Exhaust fan (field-installed) - Off

•Exhaust damper (field-installed) - Closed

• PRESSURIZE sequence “B”

This override sequence can be used if a positively pressured space is desired instead of a negatively pressurized space.

•Supply fan – On

•Supply fan VFD – On (60 Hz) (if equipped)

•Inlet guide vanes/VAV boxes – Open (if equipped)

•Outside air dampers – Open

•Heat – all stages – Off, Modulating heat output at 0 vdc

•Occupied/ Unoccupied output Energized

•VO relay - Energized

•Exhaust fan (field-installed) - Off

•Exhaust damper (field-installed) - Closed

• EXHAUST sequence “C”

With the building’s exhaust fans running and the unit’s supply fan off, the conditioned space becomes negatively pressurized. This is desirable for clearing the area of smoke when necessary; i.e. from an extinguished fire, to keep smoke out of areas that were not damaged.

•Supply fan – Off

•Supply fan VFD – Off (0 Hz) (if equipped)

•Inlet guide vanes – Closed (if equipped)

•Outside air dampers – Closed

•Heat – all stages – Off, Modulating heat output at 0 vdc

•Occupied/Unoccupied output – Deenergized

•VO relay – Energized

Operation

•Exhaust fan (field-installed) - On

•Exhaust damper (field-installed) - Open

• Purge sequence “D”

This sequence could be used for purging the air out of a building before coming out of unoccupied mode of operation on VAV units. Also, it can be used to purge smoke or stale air.

•Supply fan – On

•Supply fan VFD – On (60 Hz) (if equipped)

•Inlet guide vanes/VAV boxes – Open (if equipped)

•Outside air damper – Open

•Heat – all stages – Off, Modulating heat output at 0 vdc

•Occupied/Unoccupied output – Energized

•VO relay – Energized

•Exhaust fan (field-installed) - On

•Exhaust damper (field-installed) - Open

• Purge with duct pressure control “E”

This sequence can be used when supply air control is required for smoke control.

• Supply fan – On

•Supply fan VFD – On (if equipped)

•Inlet guide vanes – controlled by supply air pressure control function with supply air pressure high limit disabled

•Outside air dampers – Open

•Heat – all stages – Off, Modulating heat output at 0 vdc

•Occupied/Unoccupied output – Energized

•VO relay – Energized

•Exhaust fan (field-installed) - On

•Exhaust damper (field-installed) - Open

Note: Each system (cooling, exhaust, supply air, etc.) within the unit can be redefined in the field for each of the five sequences, if required. Also the definitions of any or all of the five sequences may be locked into the software by simple key strokes at the human interface panel.

PKG-PRC002-EN 71

Page 72

Sequence of

Generic Building Automation System Module (GBAS) Option

The generic building automation system module (GBAS) provides broad control capabilities for building automation systems other than Trane’s Tracer system. A field provided potentiometer or a 0-5 vdc signal can be applied to any of the inputs of the GBAS to provide the following inputs and outputs.

• GBAS Analog Inputs

Four analog inputs that can be configured to be any of the following: (1) Occupied zone cooling (2) Unoccupied zone cooling (3) Occupied zone heating (4) Unoccupied zone heating (5) SA cooling setpoint (6) SA heating setpoint (7) Space static pressure setpoint (8) SA static pressure setpoint

• GBAS Binary Outputs

Each of the five (5) relay outputs can be mapped to any/all of the available diagnostics.

• Demand Limiting Binary Input

This function is operational on units with a GBAS and is used to reduce electrical consumption at peak load times. There are two types of demand limiting, 50% and 100%. When demand limiting is needed, mechanical cooling and heating operation are either partially (50%), or completely disabled (100%) to save energy. The demand limit definition is user definable at the human interface panel. Demand limit binary input accepts a field supplied switch or contact closure. When the need for demand limiting has been discontinued, the unit’s cooling/ heating functions will again become fully enabled.

Evaporator Coil Frost Protection FROSTAT

A temperature sensor on the evaporator is used to determine if the coil is getting close to a freezing condition. Mechanical cooling capacity is shed as necessary to prevent icing.

The FROSTAT need for hot gas bypass and adds a suction line surface temperature sensor mounted near the TXV bulb location to shut off the cooling when coil frosting conditions occur. The supply fan is not

™

system eliminates the

Controls

shut off and will de-ice the coil. Timers prevent the compressors from rapid cycling.

Occupied/Unoccupied Switching

There are four ways to switch occupied/ unoccupied: (1) Programmable night setback sensor (2) Field-supplied contact closure

(hardwired binary input to RTM) (3) Tracer (4) Factory-mounted time clock

• Field Supplied Occupied/Unoccupied input on the RTM

This input accepts a field supplied switch or contacts closure such as a time clock.

• Trane Tracer

The Trane Tracer occupied/unoccupied status of the selfcontained unit.

• Factory Mounted Time Clock

A time clock can control the occupied/unoccupied status of the self-contained unit.

Timed Override Activation - ICS

This function is operational whenever the unit’s RTM module board is used as the zone temperature sensor source, which can be set at the human interface panel. When this function is initiated by the push of the override button on the zone sensor, the unit will switch to the occupied mode. Unit operation (occupied mode) during timed override is terminated by a signal from Tracer

Timed Override Activation - Non-ICS

This function is active whenever the unit’s RTM module board is selected as the zone temperature source, which can be set at the human interface panel. When this function is initiated by the push of the override button on the zone sensor, the unit will switch to the occupied mode. Automatic cancellation of the timed override mode occurs after three hours of operation.

Low Ambient Compressor Lockout

This function will lock out the compressor if the outdoor air temperature is below the low ambient compressor lock-out temperature setpoint when using a fieldinstalled outside air sensor. This setpoint is adjustable at the human interface panel. Compressors will lock out when outdoor air temperature falls below that selected temperature and will start again

System

system can control the

Operation

when the temperature rises 5 F above the setpoint.

Comparative Enthalpy Control of Airside Economizer Option

An optional comparative enthalpy system is used to control the operation of the economizer and measures the temperature and humidity of both return air and outside air to determine which source has lower enthalpy. This system allows true comparison of outdoor air and return air enthalpy by measurement of outdoor and return air temperatures and humidities.

Note: If comparative enthalpy is not ordered, the standard method compares outdoor air enthalpy with a fixed reference enthalpy, set through the human interface panel.

Compressor Lead/Lag

Compressor lead/lag is a user-selectable feature through the human interface panel available on all units. After each request for compressor operation, the lead refrigeration circuit or compressor switches, thereby causing a more equitable or balanced run time among compressors.

Emergency Stop Input

A binary input is provided on the unit’s RTM module board for installation of a field-provided switch or contacts to immediatly shutdown all unit functions.

Water Flow Control

With compatible piping configurations, the unit can be configured to provide:

1) Constant water flow with basic or intermediate piping or 2) Variable water flow with intermediate piping only.

Constant water flow is for condenser pumping systems that are not capable of unloading the water-pumping system. Variable water flow maximizes energy saving by unloading the water pumping system.

Head Pressure Control

• Water-Cooled Condensers

Units that are set up for variable water flow will modulate a water valve to maintain a user-defined condensing temperature setpoint. Condensing temperature will be referenced utilizing factory installed sensors located at each condenser.

PKG-PRC002-EN

Page 73

Sequence of

• Air-Cooled Condensers

Condenser fans will stage per a userdefined setting. If the condenser is equipped with head pressure control (air modulation on last stage of condenser capacity), the condenser airflow will modulate to maintain condensing temperature setpoint. Condensing temperature is determined by sensors located at each condenser coil.

Water Purge

This user-definable feature allows the user to select a purge schedule to automatically circulate water through the economizer and condensers periodically during non-operational times. This allows fresh chemicals to circulate in waterside heat exchangers.

Airside Options

Inlet Guide Vane Control

Inlet guide vanes are driven by a modulating 0-10 vdc signal from the RTM module. A pressure transducer measures duct static pressure, and the inlet guide vanes modulate to maintain the supply air static pressure within an adjustable user-defined range. The range is determined by the supply air pressure setpoint and supply air pressure deadband, which are set through the human interface panel.

Controls

Inlet guide vane assemblies installed on the supply fan inlet regulate fan capacity and limit horsepower at lower system air requirements. When in any position other than full open, the vanes pre-spin the air in the same direction as supply fan rotation. As the vanes approach the fullclosed position, the amount of “spin” induced by the vanes increases at the same time that intake airflow and fan horsepower diminish. The inlet guide vanes will close when the supply fan is off.

Variable Frequency Drive (VFD) Control

Variable frequency drives are driven by a modulating 0-10 vdc signal from the RTM module. A pressure transducer measures duct static pressure, and the VFD adjusts the fan speed to maintain the supply air static pressure within an adjustable user-defined range. The range is determined by the supply air pressure setpoint and supply air pressure deadband, which are set through the human interface panel.

Variable frequency drives provide supply fan motor speed modulation. The drives will accelerate or decelerate as required to maintain the supply static pressure setpoint.

Operation

Bypass control is offered as an option to provide full nominal airflow in the event of drive failure. Manual bypass is initiated at the human interface panel. When in the bypass mode, VAV boxes will need to be fully opened. The self-contained unit will control heating and cooling functions to maintain setpoint from a user defined zone sensor. Supply air static pressure limit will be active in this mode.

Supply Air Static Pressure Limit

The opening of the inlet guide vanes and VAV boxes are coordinated during unit start up and transition to/from occupied/ unoccupied modes to prevent overpressurization of the supply air ductwork. However, if for any reason the supply air pressure exceeds the userdefined supply air static pressure limit that was set at the human interface panel, the supply fan/VFD is shut down and the inlet guide vanes close. Then unit will attempt to restart, up to three times. If the overpresssurization condition still occurs on the third restart, the unit shuts down and a manual reset diagnostic sets and displays at the human interface panel.

PKG-PRC002-EN 73

Page 74

Sequence of

Zone Temperature Control Unit Sequence Of Operation

Occupied Zone Temperature Control

Cooling/Waterside Economizer

During occupied cooling mode, the waterside economizer option and mechanical cooling function to control zone temperature. If the entering condenser water temperature is appropriate to use “free cooling,” the economizer initiates to attempt to satisfy the cooling zone temperature setpoint with the compressors staging on as necessary. Minimum on/off timing of compressors prevents rapid cycling.

Waterside economizing enables when the unit’s entering water temperature is below the unit’s entering mixed air temperature by 4 F plus the user adjustable economizer approach temperature. The approach temperature default is 4 F and is adjustable from 0-9 F at the human interface (HI) panel. Waterside economizing disables when the unit’s entering water temperature is not below the unit’s entering mixed air temperature by at least the water economizer approach temperature. The approach temperature defaults to 4 F and is adjustable from 0-9 F at the HI. The economizer acts as the first stage of cooling. If the economizer is unable to maintain the zone temperature setpoint, the compressor module will bring on compressors as required to meet the setpoint.

If the unit does not include an economizer, only mechanical cooling will operate to satisfy cooling requirements.

Cooling/Airside Economizer

During occupied cooling mode, the economizer option and mechanical cooling operate to control zone temperature. If the outside air enthalpy is appropriate for airside economizing or “free cooling,” the economizer initiates to satisfy the cooling zone temperature setpoint with the compressors staging on as necessary. Minimum on/off timing of compressors will prevent rapid cycling.

On units with an airside economizer, a call for cooling will modulate the fresh air

Controls

dampers open. The rate of economizer modulation is based on deviation of the zone temperature from setpoint; i.e., the further away from setpoint, the faster the fresh air damper will open. First stage of cooling will start after the economizer reaches full open.

Note that the airside economizer will only function freely if ambient conditions are below the enthalpy control settings or below the return air enthalpy if unit has comparative enthalpy installed. If outside air is not suitable for “economizing,” the fresh air dampers drive to the minimum open position. A field adjustable, factory default setting in the human interface panel or Tracer establish the minimum damper position.

At outdoor air conditions above the enthalpy control setting, only mechanical cooling is used and the fresh air dampers remain at minimum position.

If the unit does not include an airside economizer, only mechanical cooling will operate to satisfy cooling requirements.

Heating: Electric

On units with electric heating, the zone temperature can be controlled to a heating setpoint during the occupied mode by cycling a single stage electric heater. Interface is provided for field supplied single stage electric heat. The zone temperature heating setpoint and deadband are user defined at the human interface panel.

Heating: Hot Water or Steam

On units with hot water or steam heating, the zone temperature can be controlled to a heating setpoint during the occupied mode. The zone temperature heating setpoint and deadband are user defined at the human interface panel.

Supply Air Tempering

For hot water, steam, or electric heat units in the heat mode but not actively heating, if the supply air temperature drops to 10 F (5.5 C) below the occupied zone heating temperature setpoint, one stage of heat will be brought on to maintain a minimum supply air temperature. The unit transitions out of heat mode if the supply air temperature rises to 10 F above the occupied zone heating temperature setpoint.

can provide the input to

Operation

Auto Changeover

When the system mode is auto, the mode will change to cooling or heating as necessary to satisfy the zone cooling and heating setpoints. The zone cooling and heating setpoints can be as close as 2 F (1.1 C) apart.

Unoccupied Zone Temperature Control

Cooling and Heating

Both cooling and heating modes can be selected to maintain unoccupied zone temperature deadbands. For unoccupied periods, heating, economizer operation, or compressor operation can be selectively locked out at the human interface panel.

PKG-PRC002-EN

Page 75

Sequence of

Supply Air Temperature Control Unit Sequence Of Operation

Occupied Supply Air Temperature Control

Cooling/Waterside Economizer

During occupied cooling mode, the waterside economizer option and mechanical cooling are used to control the supply air temperature. The supply air temperature setpoint and deadband are user defined at the human interface panel. Waterside economizing enables when the units entering water temperature is below the units entering mixed air temperature by 4 F plus the user adjustable economizer approach temperature. The approach temperature default is 4 F and is adjustable from 0-9 F at the HI. Waterside economizing disables when the units entering water temperature is not below the units entering mixed air temperature by at least the water economizer approach temperature. The economizer acts as the first stage of cooling. If the economizer is unable to maintain the supply air setpoint, the compressor compressors as required to meet the setpoint. If the unit does not include an economizer, only mechanical cooling will satisfy cooling requirements.

Cooling/Airside Economizer

During occupied cooling mode of operation, the airside economizer option and mechanical cooling are used to control the supply air temperature. The supply air temperature setpoint and deadband are user-defined at the human interface panel. If the temperature of the mixed air is appropriate to use “free cooling,” the economizer initiates to satisfy the supply air setpoint. Then if required, the mechanical cooling stages on to maintain supply air temperature setpoint. Minimum on/off timing of the mechanical cooling prevents rapid cycling.

On units with an airside economizer, a call for cooling will modulate the fresh air dampers open. The rate of economizer

module will bring on

Controls

modulation is based on deviation of the discharge temperature from setpoint, i.e., the further away from setpoint, the faster the fresh air damper will open. First stage of cooling initiates after the economizer reaches full open.

Note that the airside economizer is only allowed to function freely if ambient conditions are below the setpoint settings or below the return air enthalpy, if unit has the comparative enthalpy option. If outside air is not suitable for “economizing,” the fresh air dampers drive to the minimum open position. A field adjustable, factory default setting in the human interface panel or Tracer provide the input to establish the minimum damper position.

At outdoor air conditions above the setpoint or comparative enthalpy control setting, only mechanical cooling is used and the fresh air dampers remain at minimum position.

If the unit does not include an economizer, only mechanical cooling operates to satisfy cooling requirements.

Heating: Hot Water or Steam

On units with hot water or steam heating, the supply air temperature can be controlled to a heating setpoint during the occupied mode. The supply air temperature heating setpoint and deadband are user defined at the human interface panel. VAV occupied heating on hot water and steam heat units is initiated by closing a field-supplied switch or contacts connected to a changeover input on the unit’s RTM module board .

Supply Air Setpoint Reset

Supply air reset can be used to adjust the supply air temperature setpoint on the basis of a zone temperature or outdoor air temperature. Supply air reset adjustment is available from the human interface panel for supply air heating and supply air cooling control.

Reset based on outdoor air temperature

Outdoor air cooling reset is sometimes used in applications where the outdoor temperature has a large effect on building load. When the outside air temperature is low and the building cooling load is low, the supply air setpoint can be raised, thereby preventing subcooling of critical zones. This reset can

control

can

Operation

lower usage of mechanical cooling, thus savings in compressor kW, but an increase in supply fan kW may occur.

Outdoor air heating reset is the inverse of cooling, with the same principles applied.

For both outdoor air cooling reset and heating reset, there are three user defined parameters that are adjustable through the human interface panel.

•Beginning reset temperature

•Ending reset temperature

•Maximum amount of temperature reset

Reset based on zone temperature

Zone reset is applied to the zone(s) in a building that tends to overcool or overheat. The supply air temperature setpoint is adjusted based on the temperature of the critical zone(s). This can have the effect of improving comfort and/or lowering energy usage. The userdefined parameters are the same as for outdoor air reset.

Supply Air Tempering (Hot Water and Steam Units Only)

When supply air temperature falls below the supply air temperature deadband low end, the heating valve modulates open to maintain the minimum supply air temperature setpoint.

Unoccupied Supply Air Temperature Control Zone Heating and Cooling

During unoccupied mode, the unit operates to maintain zone temperature with fan cycling as needed for building load. VAV boxes drive full open. However, unit airflow modulation control operates to maintain duct static setpoint. The unit controls zone temperature within the unoccupied zone cooling and heating (heating units only) deadbands.

Daytime Warmup

During occupied mode, if the zone temperature falls to a preset, userdefined zone low limit temperature setpoint, the unit is put into daytime warmup. The system changes over to CV heating, the VAV boxes drive full open. However, unit airflow modulation control operates to maintain duct static setpoint, and full heating capacity is provided until the daytime warmup setpoint is reached. The unit is then returned to normal occupied mode.

PKG-PRC002-EN 75

Page 76

Zone Sensor

Controls

Options

Standard On All Units VAV VAV

Standard with all units Zone temperature sensor, Accessory Model Number Digit 6 = A, BAYSENS017

This wall-mounted zone sensor ships with every Signature Series unit, CV or VAV. Additional sensors are also available for order using the accessory model number. It includes an internal thermistor and should be mounted in the zone. This sensor is available for use with all zone sensor options to provide remote sensing capabilities.

Single setpoint sensor with system function lights, Accessory Model Number Digit 6 = H, BAYSENS021

This wall-mounted zone sensor option is for use in VAV applications. Features and system control functions are:

• Temperature sensing in the zone

• System control switch with mode setting for Auto or Off

• Supply air single temperature setpoint

• Function status indicator lights:

SYS ON glows continuously during

normal operation, or blinks if system is in test mode.

COOL glows continuously during

cooling cycles or blinks to indicate a cooling system failure.

HEAT glows continuously during

heating cycles or blinks to indicate a heating system failure.

SERVICE blinks or glows to indicate a

problem. These signals vary depending on the particular equipment used.

Programmable night-setback sensor, Accessory Model Number Digit 6 = J, BAYSENS020

This programmable night setback sensor is for use in VAV applications. The sensor has a time clock function that provides communication to the self-contained unit through a 2-wire communications link. The desired transition times are programmed at the night setback sensor and communicated to the self-contained unit.

The programmable night setback (unoccupied mode) operates through the time clock provided in the sensors with night setback. When the time clock switches to night setback operation, the outdoor air dampers close and heating/ cooling enables or disables, depending on set-up parameters. As the building load changes, the night setback sensor energizes the self-contained unit’s heating/cooling (if enabled) function and the evaporator fan. The self-contained unit will cycle through the evening as heating/cooling (if enabled) is required in the space. When the time clock switches from night setback to occupied mode, all heating/cooling functions begin normal operation.

When using the night setback options with VAV heating/cooling, maintain airflow through the self-contained unit by electrically tying the VAV boxes to the unoccupied output relay contacts on the unit’s RTM module board or by using changeover thermostats. Either of these methods will assure adequate airflow through the unit and satisfactory temperature control of the building.

PKG-PRC002-EN76

Page 77

Zone Sensor

Controls

Options

CV CV CV

Dual setpoint, manual/automatic changeover sensor, Accessory Model Number Digit 6 = E, BAYSENS008

This zone sensor module is for use with cooling/heating CV applications. It provides the following features and system control functions:

• System control switch (Heat/Auto/Off/ Cool): Allows you to select heating mode, cooling mode, automatic selection of heating or cooling as required, or turn the system off.

• Fan control switch (Auto/On): Allows you to select automatic fan operation while actively heating or cooling or continuous fan operation.

• Dual temperature setpoint levers allow you to set different cooling (blue lever) and heating setpoints (red lever).

• Thermometer to indicate temperature in the zone.

Dual setpoint, manual/automatic changeover sensor with system function lights, Accessory Model Number Digit 6 = F, BAYSENS010

This zone sensor is for use with cooling/ heating CV applications. It provides the following features and system control functions:

• System control switch to select heating mode (HEAT), cooling mode (COOL), AUTO for automatic selection of heating or cooling as required, or OFF to turn the system off.

• Fan control switch to select automatic fan operation while actively heating or cooling (AUTO), or continuous fan operation (ON).

• Dual temperature setpoint levers for setting cooling (blue lever) or heating (red lever).

• Thermometer to indicate temperatuare in the zone.

• Function status indicator lights:

SYS ON glows continuously during

normal operation, or blinks if system is in test mode.

COOL glows continuously during

cooling cycles or blinks to indicate a cooling system failure.

Programmable night setback sensor, Accessory Model Number Digit 6 = G, BAYSENS019

The programmable night setback sensor is for use in CV applications. The sensor has a time clock function that provides communication to the self-contained unit through a 2-wire communications link. The desired transition times are programmed at the night setback sensor and communicated to the self-contained unit.

PKG-PRC002-EN 77

HEAT glows continuously during

heating cycles or blinks to indicate a heating system failure.

SERVICE blinks or glows to indicate a

problem. These signals vary depending on the particular equipment used.

Page 78

Zone Sensor

Integrated Comfort™ Systems Sensors for CV and VAV Applications

Controls

Zone temperature sensor w/timed override buttons and local setpoint adjustment, Accessory Model Number Digit 6 = C, BAYSENS014C

This zone sensor is for use with cooling/heating ICS™. It provides the following features and system control functions:

Options

Zone temperature sensor w/timed override buttons, Accessory Model Number Digit 6 = B, BAYSENS013C

This zone sensor is for use with cooling/ heating Integrated Comfort™ Systems (ICS). It provides the following features and system control functions:

• Remote temperature sensing in the zone

• A timed override button to move an Integrated Comfort ™ System or a building management system from unoccupied to occupied mode.

• Setpoint thumbwheel for local setpoint adjustment

• Cancel button to cancel the unoccupied override command.

• Remote temperature sensing in the zone

• A timed override button to move an ICS or building management system from it unoccupied to occupied mode.

• Cancel button to cancel the unoccupied override command.

PKG-PRC002-EN78

Page 79

Electrical Data

Selection Procedures

RLA = Rated Load Amps Compressor LRA = Locked Rotor Amps Fan Motor LRA = Locked Rotor Amps, N.E.C. Table 430 - 150 FLA = Full Load Amps, N.E.C.

Table 430 - 150

Voltage utilization range is ±10 percent

Determination of minimum circuit ampacity (MCA). MCA = 1.25 x largest motor amps/VFD amps (FLA or RLA) + the sum of the remaining motor amps.

Determination of maximum fuse size (MFS) and maximum circuit breaker size (MCB)

MFS and MCB = 2.25 x largest motor amps (FLA or RLA) + the sum of the remaining motor amps.

Units with the dual power option require separate MFS and MCB calculations for each electrical circuit:

1) fans and 2) compressors.

If the rating value calulation does not equal a standard over current protective device rating, use the next lower standard rating as the maximum.

Table ED-1. Number of Compressors per Unit

SCRF/SIRF 2 0 25 - 29 30 - 35 4 0 50 60 SCWF/SIWF 20 - 25 29 - 32 35 - 38 42 - 46 52 - 58 65 - 72 8 0

10 2 1 3 2 - 1 15 - 1 - 1 3 3 4

Table ED-2. SCWF/SIWF Compressor Electrical Data

HP RLA LRA RLA LRA RLA LRA 10 33 269 14.5 117 11.5 9 4 15 46 409 20.5 178 16.5 143

200V 460V 575V

Table ED-3. SCRF/SIRF Compressor Electrical Data

HP RLA LRA RLA LRA RLA LRA 10 36.8 269 16.3 117 13.2 94 15 61.1 409 26 178 21.5 143

200V 460V 575V

Table ED-4. Fan Without VFD Electrical Data

HP FLA LRA FLA LRA FLA LRA

5 16.1 105 6.7 4 6 5.4 3 7

7.5 25.0 152 10.8 66 8.2 54 10 32.9 193 14.2 84 11.4 66 15 44.8 290 20.3 126 16.2 102 20 61.0 373 25.0 162 20.0 132 25 74.0 469 31.0 204 24.2 162 30 87.0 552 36.0 240 28.6 192 40 113.0 71 8 47.8 312 38.0 246 50 NA NA 62.0 390 49.2 312

200V 460V 575V

PKG-PRC002-EN 79

Table ED-5. Fan with VFD Electrical Data

HP FLA LRA FLA LRA

7.5 29.0 152 14.3 66 10 38.3 193 18.1 84 15 42.7 290 25.8 126 20 55.2 373 32.4 162 25 67.8 469 38.9 204 30 82.0 552 39.0 240 40 108.6 718 51.0 312 50 NA NA 61.5 390

Note: Values are at the maximum VFD input rating and not the reduced motor values.

200V 460V

Page 80

Electrical Data

SCWF/SCRF

Table ED-6. Single Stage Electric Heat Electrical Data

SXWF SXRF Heat 200V 460V

Size Size K w Amps Amps

20 - 1 8 5 0 21.7 22 - 1 8 5 0 21.7 25 2 0 18 5 0 21.7 29 2 5 23 63.8 27.7 32 2 9 23 63.8 27.7 35 3 0 27 7 5 32.5 38 3 5 27 7 5 32.5 42 - 31.5 87.4 37.9 46 4 0 31.5 87.4 37.9 52 - 39 108.3 46.9 58 50 3 9 108.3 46.9 65 - 48 133.2 57.7 72 - 48 133.2 57.7 80 60 4 8 133.2 57.7

Note: Electric heat amperage should not be considered when determining minimum circuit ampacity. The current of the unit in the heating mode will not exceed the current of the unit in the cooling mode.

Table ED-7. CCRC/CIRC Condenser Electrical Data

Unit Size Rated MFS.

Tons Voltage # Fans FLA (ea.) LRA (ea.) MCA MCB

20, 29 200 4 4.1 20.7 17.43 2 0

35, 40 200 6 4.1 20.7 25.63 3 0

50, 60 200 8 4.1 20.7 33.83 4 0

Note: All motors for CCRC/CIRC units are rated at 1 hp (.7457 kW).

460 4 1.8 9 7.65 15 575 4 1.4 7.2 5.95 1 5

460 6 1.8 9 11.25 1 5 575 6 1.4 7.2 8.75 1 5

460 8 1.8 9 14.85 2 0 575 8 1.4 7.2 11.55 15

PKG-PRC002-EN80

Page 81

Dimensions

Self-Contained

20-38 Ton Self-Contained

and Weights

20-38 Tons

PKG-PRC002-EN 81

Page 82

Dimensions

Self-Contained

40-80 Ton Self-Contained

and Weights

40-80 Ton

PKG-PRC002-EN82

Page 83

Dimensions

Self-Contained

Detail A Electrical Connections

and Weights

40 3/8” (20-38 Ton)

(1026 mm)

20-80 Tons

Detail B Discharge Dimensions

PKG-PRC002-EN 83

Discharge Dimensions - English - (inches)

Unit Tons A B C D SXWF 20-25 30 3/8261/8211/4253/ SXRF 20

SXWF 29-32 31 SXRF 25-29 SXWF 35-38 30 1/2261/8211/4253/ SXRF 30-35 SXWF 42-80 43 1/8331/2287/8341/ SXRF 40-60

Discharge Dimensions - Metric - (mm)

Unit Tons A B C D SXWF 20-25 772 66 4 5 40 654 SXRF 20 SXWF 29-32 810 597 587 51 8 SXRF 25-29 SXWF 35-38 775 66 4 5 40 6 54 SXRF 30-35 SXWF 42-80 1095 851 733 876 SXRF 40-60

/8231/2 23 1/8203/

Page 84

Dimensions

Air-Cooled

and Weights

CCRC Unit Dimensions

Unit Dimensions - English - (inches)

Unit Tons AA AB AC CCRC/CIRC 20, 29 70 1/8 7' - 4 7' - 4 CCRC/CIRC 35, 40 70 1/8 10' - 103/4 7' - 4 CCRC/CIRC 50, 60 70 1/8 14' - 8 7' - 4

Unit Dimensions - Metric (mm)

Unit Tons AA AB AC CCRC/CIRC 20, 29 1781 2235 2235 CCRC/CIRC 35, 40 1781 3321 2235 CCRC/CIRC 50, 60 1781 4470 2235

CCRC/CIRC 20 and 29

Condenser

(Optional) Low Ambient Damper (One Damper Per Circuit)

Refrigerant Line Connections

Frontal View

(Optional) Low Ambient Damper (One Damper Per Circuit)

CCRC/CIRC 35 and 40

CCRC/CIRC 50 and 60

Refrigerant Line Connections

Frontal View

(Optional) Low Ambient Damper (One Damper Per Circuit)

Refrigerant Line Connections

Frontal View

PKG-PRC002-EN84

Page 85

Dimensions

Air-Cooled

and Weights

Refrigerant and Electrical Connections

Condenser

CIRCUIT 2

CIRCUIT 1

Front View Looking at Control Panel

Electrical Connections - English - (inches)

Unit A B C D CCRC/CIRC 20-32 6 3/8121/4151/4181/ CCRC/CIRC 35-40 6 3/8121/4151/4181/ CCRC/CIRC 50-60 6 3/8121/4151/4181/

Electrical Connections - Metric - (mm)

Unit A B C D CCRC/CIRC 20-32 162 311 387 464 CCRC/CIRC 35-40 162 311 387 464 CCRC/CIRC 50-60 162 311 387 464

Refrigerant Connections - English - (inches)

Unit EFGHJKLMN CCRC/CIRC 20-32 66 CCRC/CIRC 35-40 66 CCRC/CIRC 50 66 CCRC/CIRC 60 66

/814

/818

/224

/4295/811/

/224

/4295/811/

/224

/4295/811/

/224

/4297/815/

Refrigerant Connections - Metric - (mm)

Unit EFGHJKLMN CCRC/CIRC 20-32 1699 365 470 629 737 16 29 16 29 CCRC/CIRC 35-40 1699 365 470 629 737 16 29 22 35 CCRC/CIRC 50 1699 365 470 629 737 16 29 22 41 CCRC/CIRC 60 1699 365 470 629 737 22 41 22 41

/811/

/813/

/815/

PKG-PRC002-EN 85

Page 86

Dimensions

Self-Contained

and Weights

Hot Water Coil

Air Inlet

Hot Water Coil Piping Locations - English (inches)

Unit Sizes 20 - 38 60 3/ Unit Sizes 42 - 80 72 7/

ABCDEF GH

827/ 1051/

18 20 5/ 18 24 1/

Heating Coils

81/ 103/

223/ 131/

Main Control Panel

Hot Water Outlet Connection

Hot Water Inlet Connection

35/ 35/

Notes:

1. All coils are factory mounted, piped, and wired.

2. All piping connections are 1-1/2” (38.1mm) female NPT fittings.

81/ 81/

Hot Water Coil Piping Locations - Metric (mm)

Unit Sizes 20 - 38 1534 2105 457 524 206 568 92 210 Unit Sizes 42 - 80 1851 2680 457 404.9 273 337 92 210

ABCDEF GH

Steam Coil

Air Inlet

Piping Locations For Steam Coils - English (inches)

Unit Sizes 20 - 38 60 3/8827/818 - - 22 3/8- 3 18 1/237/854 3/811/ Unit Sizes 42 - 80 72 7/81051/418 - - 13 1/4- 3 22 1/863/853/843/811/

ABCDEFGHJKLMN

Main Control Panel

Vacuum Trap Connection

Condensate Return

Vacuum Trap Connection

Steam Inlet Connection

Condensate Return

Notes:

1. All coils are factory mounted, piped, and wired.

2. All piping connections are 1-1/2” (38.1mm) female NPT fittings.

Piping Locations For Steam Coils - Metric (mm)

ABCDEFGHJKLMN Unit Sizes 20 - 38 1534 2105 457 - - 568 - 76 470 98 127 111 32 Unit Sizes 42 - 80 1851 2680 457 - - 337 - 76 562 162 137 111 32

PKG-PRC002-EN86

Page 87

Dimensions

Flexible Horizontal

Flexible Horizontal Discharge Plenum

and Weights

Plenum Dimensions - English - (inches)

Unit Sizes 20-38 Std. 64

Unit Sizes 42-80 Std. 80

Low 64 7/

Ext. 64 Low 80 3/

Ext. 80 3/

A B C Weight

Discharge Plenum

245/

323/

45 95 7/

211/

285/

45 119 7/

957/ 957/

1197/ 1197/

325 lbs. 430 lbs. 705 lbs. 390 lbs. 540 lbs. 705 lbs.

Plenum Dimensions - Metric - (mm)

Unit Sizes 20-38 Std. 1648 822 2435 195.0 kg

Unit SizesI 42-80 Std. 2042 727 3045 244.9 kg

Low 1648 625 2435 147.4 kg

Ext. 1648 1143 2435 320.0 kg Low 2042 537 3045 176.9 kg

Ext. 2042 1143 3045 320.0 kg

A B C Weight

PKG-PRC002-EN 87

Page 88

Dimensions

Airside

Airside Economizer

and Weights

Economizer

PKG-PRC002-EN88

Page 89

Dimensions

Airside

and Weights

Economizer

Airside Economizer Dimensions - English - (inches)

Unit Model A B C D E F (1) F (2) G (1 ) G (2 ) H (1) H (2) J K L M 20 SXWF 44 74 22 3/8813/483/4663/4493/4231/4201/293/4111/8201/2221/416 49 3/

20 SXRF 44 74 22 3/8813/483/4685/8493/4281/8201/271/4111/8201/2221/416 49 3/ 25 SXRF

22 SXWF 44 74 22 3/8813/483/4685/8493/4281/8201/271/4111/8201/2221/416 49 3/ 29 SXWF

29 SXRF 44 74 22 3/8813/483/4741/4623/4231/4201/293/4111/8201/2221/491/ 32 SXWF

30 SXRF 44 74 22 3/8813/483/4731/2623/433 20 1/247/8111/8201/2221/491/ 35 SXRF

35 SXWF 44 74 22 3/8813/483/4731/2623/433 20 1/247/8111/8201/2221/491/ 38 SXWF

42 SXWF 57 3/8861/2131/41043/887/8835/8631/233 26 2 1/215 26 24 3/4203/

40 SXRF 57 3/8861/2131/41043/887/8941/8631/2281/826 6 7/815 26 24 3/4203/ 46 SXWF

50 SXRF 57 3/8861/2131/41043/887/8965/8631/252 37 1/217/891/4371/219 20 3/ 60 SXRF 52-80 SXWF

623/

631/

Airside Economizer Dimensions - Metric - (mm)

Unit Model A B C D E F (1) F (2) G (1 ) G (2 ) H (1) H (2) J K L M 20 SXWF 1118 1880 568 2076 222 1695 1264 591 521 248 283 521 565 406 1264

20 SXRF 1118 1880 568 2076 222 1743 1264 714 521 184 283 521 565 406 1264

22 SXWF 1118 1880 568 2076 222 1743 1264 714 521 184 283 521 565 406 1264 29 SXWF

29 SXRF 1118 1880 568 2076 222 1886 1594 591 521 248 283 521 565 241 1594 32 SXWF

30 SXRF 1118 1880 568 2076 222 1867 1594 838 521 124 283 521 565 241 1594 35 SXRF

35 SXWF 1118 1880 568 2076 222 1867 1594 838 521 124 283 521 565 241 1594 38 SXWF

42 SXWF 1457 2197 337 2651 225 2124 1613 838 660 64 381 660 629 518 1613

40 SXRF 1457 2197 337 2651 225 2390 1613 714 660 175 381 660 629 518 1613 46 SXWF

50 SXRF 1457 2197 337 2651 225 2454 1613 1321 953 48 235 953 483 518 1613 60 SXRF 52-80 SXWF

PKG-PRC002-EN 89

Page 90

Dimensions

Field-Installed

and Weights

(114 mm)

Zone Sensors

(114 mm)

(70 mm)

Dual Setpoint, Manual/Automatic Changeover Sensor With System Function Lights BAYSENS010

(70 mm)

(114 mm)

(70 mm)

Zone Temperature Sensor W/Timed Override Buttons BAYSENS013

(114 mm)

NOTE: Remote sensors are available for use with all zone

sensors to provide remote sensing capabilities.

(70 mm)

Dual Setpoint, Manual/Automatic Changeover Sensor BAYSENS008

(70 mm)

Zone Temperature Sensor W/Timed Override Buttons and Local Setpoint Adjustment BAYSENS014

PKG-PRC002-EN90

Page 91

Dimensions

(140 mm)

(95 mm)

Field-Installed

and Weights

(114 mm)

Zone Sensors

(114 mm)

(70 mm)

Zone Temperature Sensor Only BAYSENS017

(140mm)

Programmable Night-Setback Sensor BAYSENS020B

(70 mm)

Single Setpoint Sensor With System Function Lights BAYSENS021

(95mm)

Programmable Night Setback Sensor BAYSENS019B

PKG-PRC002-EN 91

Page 92

Dimensions

Service

Self-Contained Models SCWF/SIWF/SCRF/SIRF

and Weights

Service/Code Clearance Requirements

Side Distance Purpose

Front 42 in. (1066 mm) (20-38 Ton) NEC code requirement

Left 36 in. (914 mm) Filter, refrigeration and waterside component service

Right 9 in. (229 mm) Non VFD w/ open return

Inlet 18 in. (457 mm) Provides uniform airflow

48 in. (1219 mm) (42-80 Ton) Fan service/removal

18 in. (457 mm) Non VFD w/ ducted return 24 in. (610 mm) w/ VFD 7.5 to 20 HP 36 in. (914 mm) w/ VFD 25 to 50 HP

Air Inlet

Clearances

18” (457.2mm)

Minimum

36” (914.4mm)

Minimum

Control

Panel

42” (1066.8mm) (20-38 Ton)

Minimum

48” (1219mm) (42-80 Ton)

Top View

SCWF/SCRF/SIWF/SIRF

See Table

PKG-PRC002-EN92

Page 93

Dimensions

Service

Remote Air-Cooled Condensers Models CCRC/CIRC

Top View CCRC/CIRC 20, 29

48” (1066 mm)

and Weights

96” (2132 mm)

Clearances

48” (1066 mm)

Control Panel

Top View CCRC/CIRC 35, 40

Top View CCRC/CIRC 50, 60

96” (2132 mm) 48” (1066 mm)

96” (2132 mm)

Control Panel

48” (1066 mm)48” (1066 mm)

Control Panel

PKG-PRC002-EN 93

Page 94

Dimensions and Weights

Weights

Table W-1. Unit Weights - SCWF/SCRF/SIWF/SIRF

Unit Base Airside Waterside Waterside Heating Size Weight Economizer Economizer Economizer Coil Box

SCWF/SIWF 20 3010 (1365) 430 (195) 140 (65) 340 (155) 460 (210)

SCRF/SIRF 20 2920 (1325) 430 (195) 140 (65) 340 (155) 460 (210)

Notes:

1. All unit weights include refrigerant, water, inlet guide vanes and controllers, electric heat and valves.

2. Add 150 lbs. to total weight to obtain approximate shipping weight.

3. Flexible horizontal discharge plenum option weights: 45-inch plenum = 705 lbs. Standard height plenum = 430 lbs. Low height plenum = 325 lbs.

22 3010 (1365) 430 (195) 140 (65) 340 (155) 460 (210) 25 3080 (1400) 430 (195) 140 (65) 340 (155) 460 (210) 29 3300 (1500) 500 (225) 190 (85) 390 (175) 460 (210) 32 3490 (1585) 500 (225) 190 (85) 390 (175) 460 (210) 35 3610 (1640) 500 (225) 280 (130) 505 (230) 460 (210) 38 3710 (1685) 500 (225) 280 (130) 505 (230) 460 (210) 42 4560 (2070) 640 (290) 255 (115) 505 (230) 600 (270) 46 4650 (2110) 640 (290) 255 (115) 505 (230) 600 (270) 52 4970 (2255) 700 (315) 335 (150) 665 (300) 600 (270) 58 5220 (2365) 700 (315) 335 (150) 665 (300) 600 (270) 65 5430 (2465) 800 (360) 335 (150) 665 (300) 600 (270) 72 5550 (2520) 800 (360) 335 (150) 665 (300) 600 (270) 80 5940 (2695) 800 (360) 335 (150) 665 (300) 600 (270)

25 3140 (1425) 500 (225) 190 (85) 390 (175) 460 (210) 29 3330 (1510) 500 (225) 190 (85) 390 (175) 460 (210) 30 3370 (1530) 500 (225) 280 (130) 505 (230) 460 (210) 35 3470 (1575) 500 (225) 280 (130) 505 (230) 460 (210) 40 4410 (2000) 640 (290) 255 (115) 505 (230) 600 (270) 50 4980 (2260) 700 (315) 335 (150) 665 (300) 600 (270) 60 5620 (2550) 800 (360) 335 (150) 665 (300) 600 (270)

lbs. (kg) lbs. (kg) lbs. (kg) lbs. (kg) lbs. (kg)

Table W-2. Unit Weights - CCRC/CIRC

Unit Weight Weight Size lbs (kg). lbs.(kg) CCRC/CIRC 20 2030 (920) 1906 (865) CCRC/CIRC 29 2084 (945) 1960 (890) CCRC/CIRC 32 2138 (970) 2014 (915) CCRC/CIRC 35 3018 (1370) 2833 (1285) CCRC/CIRC 40 3072 (1395) 2887 (1310) CCRC/CIRC 50 3995 (1810) 3695 (1675) CCRC/CIRC 60 4275 (1940) 3975 (1805)

Shipping Operating

2-Row 4-Row

Table W-3. Variable Frequency Drive Weights

Motor HP Voltage Weight

7.5 200V 26 (12)

7.5 460V 15 (7) 10 200V 26 (12) 10 460V 26 (12) 15 200V 75 (34) 15 460V 26 (12) 20 200V 75 (34) 20 460V 31 (14) 25 200V 126 (57) 25 460V 75 (34) 30 200V 126 (57) 30 460V 75 (34) 40 200V 126 (57) 40 460V 75 (34)

50 460V 126 (57)

lbs. (kg)

PKG-PRC002-EN94

Page 95

Mechanical

Signature Series SelfContained Units

Cabinet

The unit framework shall be formed structural steel members of 14-gauge galvanized steel. Exterior panels shall be fabricated from 18-gauge galvanized steel. The fan and compressor sections shall be insulated with ¾-inch (19 mm) of

1.75 lb./cu. ft. (28 kg./cu. ft.) density fiberglass insulation.

The unit shall be provided with removable panels to allow service access to compressors, condensers, fan motor, fan bearings, coils, and valves. Removable panels shall be secured with quick-acting fasteners. The refrigerant sight glasses shall be accessible during operation. The control panel door shall have lift-off hinges.

Compressors

Units shall have multiple compressors with independent circuits for water-cooled units and manifolded circuits for aircooled units. Compressors shall be manufactured by the unit manufacturer. Scroll compressors shall be heavy duty suction cooled type with suction screen, centrifugal oil pump with dirt separator, oil charging valve, and oil sight glass. Protective devices for low pressure, high pressure, and motor temperature shall be provided. The compressors shall be mounted on isolators for vibration isolation.

Condenser (SCWF/SIWF only)

One condenser shall be provided for each compressor. The condensers shall be shell-and-tube design with removable heads and mechanically cleanable tubes. Tubes shall be ¾-inch (19mm) OD and constructed of copper. Condenser waterside working pressure shall be 400 psig. All condenser water piping including, cleanouts, shall be factory installed to provide single connections for water inlet and outlet.

Evaporator

The evaporator coil shall be seamless copper tubes expanded into aluminum fins. Tubes shall be ½-inch (13mm) OD with internally enhanced surfaces. Coil shall have staggered tube arrangement

Specifications

with intertwined circuiting and no more than 12 fins per inch.

The drain pan shall be positively sloped in all directions to ensure proper condensate removal. The drain pan shall be fabricated of galvanized steel and insulated with ¾inch (19 mm) of 1-lb. (0.5 kg) density fiberglass. Drain piping, including a trap with cleanout, shall be provided with a single-point connection to the unit’s exterior.

Refrigerant Circuit (SCWF only)

Refrigerant circuits shall be independent and completely piped including sight glasses, distributors, thermal expansion valves with adjustable superheat and external equalizer, and high pressure relief valves with ½-inch (13 mm) flare connection. Filter driers ship loose for field installation. Unit shall be provided with adequate means of frost control. The circuits shall be factory dehydrated, charged with oil and refrigerant 22. Compressors shall be mounted on rubber-in-shear isolators for vibration isolation.

Refrigerant Circuit (SCRF/SIRF only)

Two refrigerant circuits shall be piped to the unit’s exterior. The refrigerant piping includes filter driers (for field installation), sight glasses, distributors, thermal expansion valves with adjustable superheat and external equalizer. Unit shall be provided with adequate means of frost control. The circuits shall be factory tested, dehydrated and then charged with dry nitrogen. Compressors shall be mounted on rubber-in-shear isolators for vibration isolation.

Supply Fan

The supply fan shall be a single forward curved medium pressure fan secured to a solid steel shaft with grease lubricated bearings designed for 200,000 hours. Both fan bearings shall have greaselines extended to a common location. The drive components shall include fixed pitch sheaves and multiple V-belt sized for 130% nominal motor horsepower. The supply fan motor shall have a service factor of 1.15. The supply fan motor shall be either:

• Standard efficiency open drip-proof

• Premium efficiency open drip-proof

• Totally enclosed fan cooled standard

Self-Contained

efficiency. Supply fan motor shall have a standard Tframe. All drive components shall be accessible without using scaffolds or ladders.

The entire fan assembly, including drive components, shall be mounted on a common base. The fan base shall be isolated inside the unit. The entire assembly shall be statically and dynamically balanced at the factory.

Filters

Two-inch (51 mm) throwaway fiberglass filters shall be provided for installation during construction.

Unit Controls - DDC

Microprocessor controls shall be provided to control all unit functions. The control system shall be suitable to control CV or VAV applications. The controls shall be factory-installed and mounted in the main control panel. All factory-installed controls shall be fully commissioned (run tested) at the factory. The unit shall have a human interface panel with 16-key keypad, a two line, 40 character clear language (English, French, or Spanish) display as standard to provide the operator with full adjustment and display of control data functions. The unit controls shall be used as a stand-alone controller or as part of a building management system involving multiple units.

The unit shall be equipped with a complete microprocessor control system. This system shall consist of temperature and pressure (thermistor and static pressure transducer) sensors, printed circuit boards (modules) and a unit mounted human interface panel. Modules (boards) shall be individually replaceable for service ease. All microprocessors, boards, and sensors shall be factory mounted, wired, and tested.

The microprocessor boards shall be stand-alone DDC controls not dependent on communications with an on-site PC or building management network. The microprocessors shall be equipped with on-board diagnostics, indicating that all hardware, software, and interconnecting wiring are in proper operating condition. The modules (boards) shall be protected to prevent RFI and voltage transients from affecting the board’s circuits. All field

PKG-PRC002-EN 95

Page 96

Mechanical

Air-Cooled

wiring shall be terminated at a separate, clearly marked terminal strip. Direct field wiring to the I/O boards is not acceptable. The microprocessor’s memory shall be nonvolatile EEPROM type requiring no battery or capacitive backup, while maintaining all data.

Zone sensors shall be available in several combinations with selectable features depending on sensor.

The human interface panel’s keypad display character format shall be 40 characters x two lines. The character font shall be 5 x 7 dot matrix plus cursor. The display shall be supertwist liquid crystal display (LCD) with blue characters on a gray/green background which provides high visibility and interface ease. The display format shall be in clear language: English, French, or Spanish.

The keypad shall be equipped with 16 individual touch sensitive membrane key switches. The switches shall be divided into four separate sections and password protected to prevent tampering by unauthorized personnel. The six main menus shall be STATUS, SETPOINTS, DIAGNOSTICS, SETUP, CONFIGURATION, and SERVICE MODE.

Agency Listing

The unit shall have the US/Canada Underwriter’s Laboratory agency listing.

Specifications

Remote Air-Cooled Condenser

Cabinet

The unit framework shall be formed structural steel members of 14-gauge galvanized steel. Panels and access doors shall be 18-gauge galvanized steel. The unit exterior shall be phosphatized and finished with air-dried enamel paint.

Refrigerant Circuits and Controls

All sizes shall have dual refrigerant circuits and shall include an integral subcooling circuit for each circuit. All necessary controls to run unit fans shall be factory installed. The control panel shall include fan motor contactors, terminal block connection for compressor interlock, and 115-volt control power transformer.

Condenser Coils

The condenser coil arrangement shall be slab type. Coils shall be seamless

/8-inch (10mm) OD copper tubes expanded into aluminum fins. Each circuit shall include an integral subcooler. The coil shall be leak tested at 450 psig air pressure.

Condenser Fans and Motor

Vertical discharge direct drive fans shall be statically and dynamically balanced at the factory. Motors shall be three-phase with permanently lubricated ball bearings, built-in current and thermal overload protection and weathertight rain slinger over the fan shaft.

Condenser

Protective Coating (Option)

Unit

The unit’s interior and exterior shall have a 4 to 6 mil coat of protective coating applied with an air-dry process.

Condenser Coils

The condenser coil shall have a 4 to 6 mil coat of protective coating applied by a multiple dip-and-bake process.

Low Ambient Operation Option

Standard ambient control allows operation down to 45 F (-7.2 C) by cycling the condenser fans. Low ambient control damper shall allow the unit to operate down to 0 F (-17.8 C) by utilizing additional fan cycling and an external damper assembly. The low ambient control damper shall include a 16-gauge damper assembly. The damper is controlled by the air-cooled unit’s DDC controller.

Louvered Coil Guards Option

The unit coils shall be covered with a factory installed decorative louvered grill type panel for protection.

Agency Listing

The unit shall have the US/Canada Underwriter’s Laboratory agency listing.

PKG-PRC002-EN96

Page 97

Mechanical

Self-Contained Options

Air Volume/Temperature Control

• Zone Temperature Control

This option includes a zone sensor, microprocessor unit control module, a microprocessor compressor controller, and a unit-mounted human interface panel. The unit operates at a design airflow based on the fan and motor drive selections.

• Supply Air Temperature Control with Inlet Guide Vanes

This option controls supply air temperature to the specified supply air cooling setpoint by modulating the economizer option and/or staging mechanical cooling on and off as required. Control components include a discharge air microprocessor controller, discharge air sensor, pressure sensor, and inlet guide vanes. The microprocessor controller coordinates the economizer control and the cooling stages with zone or outdoor air reset capabilities and an adjustable control band to fine-tune the control to specific applications. The inlet guide vanes (IGV) operate with the self-contained unit to control duct static pressure. The IGV option includes vanes and static pressure controls.

Inlet Guide Vanes

• Supply Air Temperature Control With Variable Frequency Drive

This option controls the VAV selfcontained unit from the discharge air temperature using a factory mounted variable frequency drive (VFD). The VFD safely varies the fan motor speed to allow

Specifications

the motor to meet the dynamic requirements at the motor shaft and meet the system static. Other control components include a discharge air microprocessor controller and discharge air sensor. The microprocessor controller coordinates the economizer control and the stages of cooling with discharge air temperature reset capabilities. Includes factory installed and tested variable frequency drive (VFD) to provide supply fan motor speed modulation. The VFD receives 0-10vdc signal from the unit microprocessor based upon supply static pressure and causes the drive to accelerate or decelerate as required to maintain the supply static pressure setpoint.

Supply Air Temperature Control With Variable Frequency Drive with Bypass

Manual bypass control provides full nominal airflow and zone temperature control in the event of a drive failure. The VFD with bypass is factory mounted completely wired and tested. A motor overload relay and fuses are provided to properly size motor protection during both drive and bypass modes.

Waterside Economizer

The waterside economizer takes advantage of cooling tower water to either pre-cool the entering air to aid the mechanical cooling process or, provides total system cooling if the water temperature is low enough. Waterside economizing enables when the unit’s entering water temperature is below the unit’s entering mixed air temperature by a minimum of 4 F plus the economizer’s approach temperature. The approach temperature default is 4 F and is adjustable from 0 to 9 F. Waterside economizing disables when the unit’s entering water temperature is not below the unit’s entering mixed air temperature by at least the water economizer approach temperature. The economizer acts as the first stage of cooling. If the economizer is unable to maintain the supply air setpoint, the unit control module brings on compressors as required to meet the setpoint. The waterside economizer includes a coil, modulating valves, controls, and piping with cleanouts. All components are factory installed in the unit cabinet. The coil construction is ½-inch (13mm) OD

Options

seamless copper tubes expanded into aluminum fins. The evaporator and economizer coils share a common sloped (IAQ) drain pan. Drain pan options are either galvanized or stainless steel and insulated and internally trapped.

The waterside economizer coil options have either two or four rows with no more than 12 fins per inch. The tubes are arranged in a staggered pattern to maximize heat transfer. The coil has round copper supply and return headers with removable cleanout and vent plugs. The optional mechanically cleanable economizer has removable cast iron headers to allow easy mechanical cleaning of the tubes. The waterside working pressure is rated for 400 psig (2758 kPa).

Side View of Unit with Waterside Economizer with Removable Headers

PKG-PRC002-EN 97

Page 98

Mechanical

Airside Economizer

Units with the airside economizer option are equipped with the necessary control sequences to use outside air for the first stage of cooling, in occupied or unoccupied mode and when ambient conditions are favorable for economizing. Inherent in the unit controller is the ability to suppress the setpoint below the normal unit setpoint. This allows the building to improve comfort levels when possible, and at the same time, optimize building mechanical cooling operation for peak operating efficiency. An outside air temperature and relative humidity sensor are provided to allow monitoring of reference enthalpy and are field installed. Economizer operation enables when the outside air enthalpy is less than 25 BTU’s/ lb. default (adjustable 19-28 BTU’s/lb.). During occupied mode, the outside air damper opens to 15% (adjustable 0100%) for ventilation purposes. Also, the ability to alter the outside air damper position to compensate for VAV supply air modulation is inherent in the unit controls, and can be enabled by the operator.

The mixing box fabrication is 16-gauge galvanized steel. Opposed low leak damper blades are fabricated from 16gauge galvanized steel and rotate on rustproof nylon bushings. A factory installed 24V modulating spring return actuator controls both damper positions.

• Comparative Enthalpy Control

Units with comparative enthalpy control are equipped with the necessary control sequences to allow using outside air for the first stage of cooling, in occupied or unoccupied mode and when ambient conditions are favorable for economizing. Inherent in the unit controller is the ability to suppress the setpoint below the normal unit setpoint. This allows the building to improve comfort levels when possible, and at the same time, optimize building mechanical cooling operation for peak operating efficiency. A factory-installed control board, with field-installed outside and return air temperature and relative humidity sensors, allows monitoring of outside and return air. Economizer operation enables when the outside air enthalpy is 3 BTU’s/lb. less than the return air enthalpy. During occupied mode, the outside air damper opens to 15% (adjustable 0-100%) for ventilation

Specifications

purposes. Also, the ability to alter the outside air damper position to compensate for VAV supply air modulation is inherent in the unit controls, and can be enabled by the operator.

•Standard Two-Position Damper Interface

Units with the two-position damper interface are provided with a 0-10 VDC control output suitable for controlling a field-provided modulating actuator. In occupied mode, the output drives to the maximum position.

• Airside Economizer Interface

Units with airside economizer interface are equipped with the necessary control sequences to allow using outside air for the first stage of cooling, in occupied or unoccupied mode and when ambient conditions are favorable for economizing. Inherent in the unit controller is the ability to suppress the setpoint below the normal unit setpoint. This allows the building to improve comfort levels when possible, and at the same time, optimize building mechanical cooling operation for peak operating efficiency. An outside air temperature and relative humidity sensor are provided for field installation to monitor reference enthalpy. Economizer operation enables when the outside air enthalpy is less than 25 BTU’s/lb. (adjustable 19-28 BTU’s/lb). During occupied mode, the outside air damper opens to 15% (adjustable 0-100%) for ventilation purposes. Also, the ability to alter the outside air damper position to compensate for VAV supply air modulation is inherent in the unit controls, and can be enabled by the operator. An analog 2-10 VDC output (adjustable (0-10 VDC) is provided to modulate the fieldprovided 30 second damper actuators (adjustable 1-255 seconds).

• Airside Economizer Interface with Comparative Enthalpy

Units with airside economizer interface and comparative enthalpy are equipped with the necessary control sequences to

Options

allow using outside air for the first stage of cooling, in occupied or unoccupied mode and when ambient conditions are favorable for economizing. Inherent in the unit controller is the ability to suppress the setpoint below the normal unit setpoint. This allows the building to improve comfort levels when possible, and at the same time, optimize building mechanical cooling operation for peak operating efficiency. A factory-installed control board, with outside and return air temperature and relative humidity sensors, are provided for monitoring outside and return air. The sensors are field installed. Economizer operation enables when the outside air enthalpy is 3 BTU’s/lb. less than the return air enthalpy. During occupied mode, the outside air damper opens to 15% (adjustable 0-100%) for ventilation purposes. Also, the ability to alter the outside air damper position to compensate for VAV supply air modulation is inherent in the unit controls, and can be enabled by the operator. An analog 2-10 VDC output (adjustable (0-10 VDC) is provided to modulate the field-provided 30-second damper actuators (adjustable 1-255 seconds).

Basic Water Piping

This option is available on units without a waterside economizer and with condenser water applications above 54 F (12.2 C) that do not require condensing pressure control. Left hand water connections and piping are extended to the unit exterior. Manifold piping is factory installed.

Intermediate Water Piping

This option provides condensing temperature control when the unit is configured (user defined at the HI) for variable water flow with or without a waterside economizer. A two-way modulating control valve is wired and installed in the unit to maintain a specific range of water temperature rise through the condenser when entering fluid temperature is less than 58 F (15 C). This option allows the compressor to operate with entering fluid temperature down to 35 F (2 C). The minimum valve position to maintain minimum condenser flow rates is user-defined at the human interface. This valve drives closed if the unit shuts down or if a power failure occurs.

PKG-PRC002-EN98

Page 99

Mechanical Specifications Options

Waterside Economizer Flow Control

Units equipped with a waterside economizer can be set from the human interface panel for variable or constant water flow.

• Constant Water Flow

Two-way modulating control shutoff valves are wired, controlled, and installed in the unit. One valve is located in the economizer’s water inlet, and the other is in the condenser bypass water inlet. When the waterside economizer enables, the two-way valve modulates to maintain the discharge air temperature setpoint. As the economizer valve opens, the condenser bypass valve closes, and vice versa. Full water flow is always maintained through the condensers. Both valves will close in the event of a power failure.

• Variable Water Flow

Two-way modulating control shutoff valves are wired, controlled, and installed in the unit. One valve is located in the economizer’s water inlet, and the other is in the condenser bypass water inlet. When the economizer valve is active, the condenser bypass valve closes. The economizer valve modulates, thus water flow through the unit modulates. If the water is cool enough for economizing, but mechanical cooling is also required, the economizer valve fully opens to establish full water flow through the condensers. Whenever the water is too warm for economizing and there is a call for cooling, the economizer valve fully closes and the bypass valve fully opens, establishing full water flow through the condensers. Full water flow is always maintained through the condensers when mechanical cooling is required. Both valves close whenever cooling is not required and in the event of a power failure.

Water Flow Switch

A water flow switch is factory installed in the condenser water pipe within the unit. Whenever the flow switch detects a water flow loss prior to or during mechanical cooling, compressor operation locks out and a diagnostic code displays. If water flow is restored, the compressor operation automatically restores.

Service Valves

Service valves are factory installed on each circuit before and after the compressor to allow compressor isolation for servicing.

Heating Coils

• Electric Heat

A single stage electric heating coil and controls are factory installed inside the unit casing at the fan discharge. An open construction type coil is provided. Power to the electric heater is factory wired to the unit’s single-point power connection.

• Hot Water

The hot water heating assembly includes the coil and filter section and is factory installed on the unit’s inlet. A three-way modulating valve, actuator, manifold piping, and automatic air vent are also factory installed. The coil is a Trane type WC, constructed of copper tubes arranged in a parallel pattern. The copper tubes are expanded into aluminum fins positioned continuously across the entire coil width, not exceeding 12 fins per inch. The coil casing is 16-gauge steel. Coil performance is rated at a maximum working pressure of 200 psig in accordance with ARI Standard 410. Supply and return water header connections are female tapered NPT and are accessed from the unit’s left side.

• Steam

The steam heating assembly includes the coil and filter section, factory installed on the unit’s inlet. A two-way modulating valve, actuator, and manifold piping are also factory installed. Also, connections are provided for field installing a vacuum breaker. The coil is a Trane type NS, constructed of one inch (25 mm) OD copper tubes arranged in a parallel pattern. The copper tubes are expanded into aluminum fins positioned continuously across the entire coil width, not exceeding 42 fins per foot. The coil casing is 16-gauge steel. Coil performance is rated at a maximum working pressure of 100 psig in accordance with ARI Standard 410. Supply and return steam header connections are female tapered NPT and are accessed from the unit’s left side.

/8-inch (16 mm) OD

Factory provided controls limit the steam coil leaving air temperature to no more than 105 F (41 C) at all operating conditions.

Single Stage Electric Heat Interface

A heat control module will be factory installed and wired for customer supplied and powered electric heat. This module will allow the unit to stage the customerprovided electric heat. Single stage electric heat control will be accomplished with one dry binary output rated at one amp for 115 VAC.

Hydronic Heating Control Interface

A heat control module will be factory installed and wired for customer supplied hydronic heating. This control will be accomplished with a dry binary output, 010 VDC analog control signal.

Time Clock

A factory-installed programmable time clock is wired to the unoccupied mode binary input to provide on/off control. The timer is accessible without opening the control panel door, and is a seven-day type with a maximum of four operations per day. A permanent built-in rechargeable battery pack is provided.

Low Entering Air Temperature Protection Device

A thermostat limit switch is factory mounted on the unit’s entering air side with a capillary tube serpentine across the coil face. If the temperature falls below 35 F (2 C), the fan shuts down and the waterside economizer and/or hydronic heat valve option opens to allow full water flow. The heat output also energizes. A manual reset is required. Note: this option is standard on units with a waterside economizer or hydronic heat.

Non-fused Disconnect Switch

The unit has a factory mounted non-fused disconnect switch accessible without opening the control panel door.

Dual Point Power Terminal Blocks

Two separate power terminal blocks are available to bring power to the unit; one terminal block provides power to the compressors and the other provides power to the fan motor and controls. Note: a single point power terminal block is standard.

PKG-PRC002-EN 99

Page 100

Mechanical Specifications Options

Flexible Horizontal Discharge Plenum

• Low and Standard Height

Units are provided with a factory installed horizontal discharge plenum that permits multi-directional duct connections. The plenum is insulated with two inches (51 mm) of 1.75 lb. (0.79 kg) density fiberglass for sound attenuation. Discharge openings can either be field cut or factory cut based on duct dimensions supplied by the customer. A two-inch duct collar is provided for field duct connections. On unit sizes 20-38 tons, the low height plenum is 24 standard height plenum is 32 3/8 inches (822 mm). On unit sizes 42-80 tons, the low height plenum is 21 mm) and the standard height plenum is

/8 inches (727 mm).

• Extended Height, 45-inch (1143m)

Units are provided with a horizontal discharge plenum that permits multidirectional duct connections. The plenum is insulated with four inches (102 mm) of

1.75 lb. (0.79 kg) density fiberglass for sound attenuation. Double-wall perf is also available. Discharge openings can either be field cut or factory cut based on duct dimensions supplied by the customer. A two-inch duct collar is provided for field duct connections.

High Duct Temperature Thermostat

A factory-supplied temperature limit switch with reset element detects the supply air duct temperature. This sensor should be field-installed downstream from the unit’s discharge in the supply air duct. If the supply air duct temperature exceeds 240 F (115.6 C), the unit shuts down and displays a diagnostic. A manual reset is required at the unit. The high duct temperature can be adjusted at the thermostat.

Plenum High Static Switch

A factory supplied sensor provides additional protection from ductwork overpressurization. This sensor should be field-installed downstream of the unit’s discharge in the supply air duct.

/8 inches (625 mm) and the

/8 inches (537

Protective Coating

• Cabinet

The unit exterior and exposed interior surfaces have a four to six mil coat of protective coating.

• Coils

A three to five mil coat of protective coating is applied to the coil using a multiple dip-and-bake process.

Cupro-Nickel Condenser

One condenser is provided for each compressor. The condensers are a shelland-tube design with removable heads to allow mechanical tube cleaning. Tubes are ¾-inch (19mm) OD and constructed of copper cupro-nickel (90/10).

Stainless Steel Drain Pan

The drain pan is positively sloped, fabricated from 304L stainless steel, and insulated with ¾-inch (19 mm) of 1-lb. (0.5 kg) density fiberglass. The drain pan contains a factory piped trap with cleanout.

Dirty Filter Sensor

A factory installed pressure switch senses the pressure differential across the filters. When the differential pressure exceeds 0.9-inches (23 mm) WG, contact closure occurs.

A field installed indicator device may be wired to relay terminals that indicate when filter service is required. Contacts are rated at 115 VAC and are powered by a field supplied transformer.

Dirty Filter Switch

Filters

Medium Efficiency

Two-inch (51 mm) medium efficiency throwaway fiberglass filters are installed in the unit filter section.

Remote Human Interface Panel

The remote human interface panel (RHI) can perform all the same functions as the unit mounted human interface panel, except the service mode function. A single RHI can monitor and control up to four units. The panel includes a 2 x 40 character clear language (English, Spanish, or French) display, a red LED light to indicate an alarm condition, a simple 16-key keypad for making unit setpoint and configuration changes, and hinged access door. The panel can be mounted up to 5,000 feet (1524 m) from the unit and is wired to the interprocessor communications bridge (IPCB) mounted in the unit with twisted wire pair communication wiring and 24V wiring.

Generic Building Automation System Module (GBAS)

The GBAS module is for use with a nonTrane building management system. The module provides a binary input for demand limiting, four analog inputs for setpoint adjustment, and five relay outputs for diagnostic reporting. Inputs can use a potentiometer or 0-5 vdc signal.

Ventilation Override Module (VOM)

The VOM allows you to program the unit with up to five ventilation sequences: smoke purge, evacuation, pressurization, purge, and purge with duct control. Typically, a hard-wire short from a smoke detector or fire control panel will cause a binary input on the VOM to close, thus causing the programmed sequence to occur.

Trane Communication Interface (TCI)

The TCI provides interface to a Trane Integrated Comfort™ system (ICS). It allows remote control and monitoring of the self-contained unit using a personal computer with Tracer management software.

building

PKG-PRC002-EN100

Trane SCWF29, SCWF32, SCWF35, SCWF38, SIWF20 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual