COOLSENSE INTEGRATED OUTDOOR AIRAn EarthWise® System from Trane

As buildings are designed for lower energy use, the resulting reduction in cooling loads presents an economically feasible opportunity

for systems that use zone-level, sensible-only cooling equipment. The new Trane® CoolSense™ system combines a dedicated outdoor air

system with chilled-water, sensible-cooling terminals to deliver a fl exible, energy effi cient solution to provide comfortable spaces and

simplify maintenance.

Dedicatedoutdoor air unit

Sensible-cooling terminals

Airside of the CoolSense system

Comfortable Spaces

Each terminal is controlled by a zone temperature sensor, and

contains its own cooling coil and (optionally) either a hot-water coil

or electric heater, allowing each zone to receive cooling or heating as

needed. Dehumidifi cation is provided by the centralized, dedicated

OA unit; and, when equipped with a humidity sensor, the terminal

unit actively adjusts dehumidifi ed airfl ow from the dedicated OA

unit to limit humidity, ensuring a comfortable environment.

Engineered For Repeatable Performance

Trane factory-installed controls allow projects to be installed quickly.

This streamlines coordinated control of the chiller plant, dedicated

OA system and terminal units.

Low Maintenance

No condensation occurs at the zone-level terminal units, meaning

no drain pans to clean and no condensate drain, traps and piping to

install and maintain. And, since the cooling coil in each terminal unit

operates dry, an upstream fi lter is optional.

Flexible Design

The dedicated outdoor air (OA) unit and its associated ductwork

are typically sized for only the minimum ventilation airfl ow

required, in turn requiring less ceiling plenum height and allowing

for more usable space inside the building. Reconfi guring a zone

often requires moving only the downstream fl ex duct and supply-air

diffusers; the sensible-cooling terminals and water piping often do

not need to move. And the sensible-cooling terminal unit can be

equipped with either a hot-water coil or electric heater, if necessary.

Effi cient Operation

CoolSense integrates variable-speed fan control in both the

terminal units and dedicated OA unit to minimize fan energy.

Decoupling dehumidifi cation from zone sensible-cooling allows

for higher effi ciency cooling with warmer chilled water. The

fl ow-measuring damper maintains the outdoor air fl ow required in

each zone at any given time. Plus, demand-controlled ventilation

(DCV) sequences (using either a CO2 sensor or occupancy sensor)

are pre-engineered into the factory-mounted unit controller.

All of these features lead to effi cient operation.

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LET’S GO BEYOND.™

Sensible-cooling Terminal Units

• Two fan sizes (up to 1300 cfm) equipped with an electronically-commutated motor (ECM) allows the supply airflow to be varied as the zone load changes

• Conditioned outdoor air from the dedicated OA unit enters the terminal through an airflow-measuring damper for demand-controlled ventilation

• 2-, 4- or 6-row sensible-cooling coil mounted at the inlet from the ceiling plenum with modulating control valve, drip pan with moisture sensor and optional filter

• No heat, modulating hot-water heat, staged electric heat or modulating (SCR) electric heat

• Factory-mounted Tracer UC™ 400 controller with pre-packaged control sequences (wired or wireless)

Ingersoll Rand (NYSE:IR) advances the quality of life by creating comfortable, sustainable and efficient environments. Our people and our family of brands—including Club Car®, Ingersoll Rand®, Thermo King® and Trane®—work together to enhance the quality and comfort of air in homes and buildings; transport and protect food and perishables; and increase industrial productivity and efficiency. We are a $13 billion global business committed to a world of sustainable progress and enduring results.

©2015 Ingersoll Rand IR000000We are committed to using environmentally conscious print practices.

ingersollrand.com

Trane, the Circle Logo, Let’s Go Beyond, CoolSense, CDQ, EarthWise, Tracer UC and Tracer are trademarks of Trane in the United States and other countries.Ingersoll Rand (NYSE:IR) advances the quality of life by creating comfortable, sustainable and efficient environments. Our people and our family of brands—including Club Car®, Ingersoll Rand®, Thermo King® and Trane®—work together to enhance the quality and comfort of air in homes and buildings; transport and protect food and perishables; and increase industrial productivity and efficiency. We are a $13 billion global business committed to a world of sustainable progress and enduring results.

©2015 Ingersoll Rand IR000000We are committed to using environmentally conscious print practices.

ingersollrand.com

Packaged DX Dedicated OA Units• Air-cooled or water-cooled models • Optional total-energy wheel• Factory-mounted Tracer UC™ 600 controller

Air-cooled or Water-cooled Chiller Plants• Single- or multiple-chiller plants• Options for energy storage, waterside

economizing (free cooling) and waterside heat recovery

• Factory-mounted controllers and Tracer® SC chiller plant control application

Chilled-water Dedicated OA Units• Indoor or outdoor models • Options for exhaust-air energy recovery

(total-energy wheel, fixed plate heat exchanger, sensible-assisted membrane) and CDQ® desiccant dehumidification wheel

• Factory-mounted Tracer UC™ 600 controller

Trane.com/CoolSense

CoolSense™ System Components

2 Active Chilled Beam1 ASHRAE 90.1 Baseline VAV 3 CoolSense DOAS 4 High Performance VAV

70

80

90

100A

nnua

l HVA

C Co

mpo

nent

Ene

rgy

Use

(%

)

60

40

20

30

10

0

Atlanta Los Angeles Minneapolis Washington D.C.

50

2 3 41 2 31 4 2 31 4 1 2 3 4

exhaust fan

terminal fan

DOAS/central fan

chilled-water pump

cooling tower

condenser- water pump

cool-waterchiller

cold-water chiller

heating energy

The energy model included a 268,000 ft2 office building. The chilled-beam system included 4-pipe ACB, separate AHUs for perimeter vs. interior and separate chiller plants (57ºF to ACBs, 45ºF to AHUs). The CoolSense system included terminal units with VS fans and hot-water heating coils, dedicated OA AHU with total energy wheel and separate chiller plants (57ºF to terminals, 40ºF to AHU). DCV was used in CoolSense and High-performance VAV systems. The system catalog explains this energy analysis in greater detail.

Controls

• Accessible, configurable interfaces• Pre-packaged control sequences• Points lists, sequences, drawings and

contract documentation available from TraneEngineer.com