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Dehumidification solutions - Trane

Dehumidificationsolutions Effective moisture removal for indoor environmentsManaging building moisture protectsyour biggest investmentTrane PerformanceClimate Changer airhandlers are central to many energy-efficientdehumidificationsolution s. They areavailable with both a CDQ desiccantdehumidification wheeland an energy recovery wheel. printing plants and surgical suites, ourcomprehensive approach offers solutions thatare right for your facility and challenge of removing moisture:humidity control vs. energy usageInsufficient Dehumidification can impactworking conditions and contribute to seriousmoisture-related problems in virtually anybuilding, regardless of the climate or location. The challenge is to control humidity, withoutdriving up energy costs. The idealdehumidification solution depends on a varietyof factors. The building s function and occupantdensity determine target humidity levels andcontrol requirements necessary to optimizeoperation and preservation of the building.

Trane has the expertise to ensure that sensor placement, control sequences and other essential aspects of the design fully support facility requirements.

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Transcription of Dehumidification solutions - Trane

1 Dehumidificationsolutions Effective moisture removal for indoor environmentsManaging building moisture protectsyour biggest investmentTrane PerformanceClimate Changer airhandlers are central to many energy-efficientdehumidificationsolution s. They areavailable with both a CDQ desiccantdehumidification wheeland an energy recovery wheel. printing plants and surgical suites, ourcomprehensive approach offers solutions thatare right for your facility and challenge of removing moisture:humidity control vs. energy usageInsufficient Dehumidification can impactworking conditions and contribute to seriousmoisture-related problems in virtually anybuilding, regardless of the climate or location. The challenge is to control humidity, withoutdriving up energy costs. The idealdehumidification solution depends on a varietyof factors. The building s function and occupantdensity determine target humidity levels andcontrol requirements necessary to optimizeoperation and preservation of the building.

2 Maintaining relative humidity (RH) near 50percent may be entirely sufficient for comfortcooling in a typical office environment. Asurgical suite, in contrast, may require you tomaintain around-the-clock RH levels at or below50 percent, and at much lower applies a variety of energy efficiencystrategies ranging from affordable hot gasreheat, to variable-air-volume (VAV) Dehumidification , to dedicated outdoor airsystems to deliver precise humidity HVAC systems that deliver consistentcooling and precision control are essential to theoverall operations and health of mostcommercial facilities. Today, engineers andbuilding owners increasingly consider the needfor Dehumidification a key design aspect of theHVAC system. The benefits are clear: moistureremoval can improve indoor air quality (IAQ)and occupant comfort, while supporting facilityoperations and maximizing the life of yourbuilding, furnishings and equipment.

3 Trane Dehumidification options helpsignificantly reduce moisture-related damageand degradation to the facility and other assets,preventing peeling paint, odor problems andloss of structural integrity. From the moderatedehumidification requirements of typical officeenvironments, to moisture-sensitive museums,2 Dehumidification SolutionsTrane has the expertise to ensure that sensorplacement, control sequences and otheressential aspects of the design fully supportfacility requirements. Address precise moisture-removal needsby applying these key principles: Isolate and address problematic moisturesources, such as seepage and/or leakage. With many traditional systems, cooling resultsin some Dehumidification , but humidity couldbe better controlled with new componentsand/or design modifications. Basic constant-volume (CV) systems alonemay not provide adequate systems should be enhanced orvariable-air-volume (VAV) systems should beused for proper is influenced by climate, buildingdesign, moisture-sensitive operations, buildingintegrity and other solutions provide excellentenvironmental controlHVAC equipment selection should be based onyour comfort and IAQ requirements, as well asfirst cost, energy usage and total operatingcosts.

4 Dehumidification requirements shouldalso factor into the design specifications forequipment and how the equipment iscontrolled. For example, a Tracer Summit building automation system may be specified to maintain different conditions in variousspaces within your building. It can also providetrending data to track and document humiditylevels over time. Successful HVAC design or modificationconsiders system and component performance,efficiency, control and management of humidity sources. Dehumidification performanceshould be considered under both part- andfull-load conditions. Even the right HVAC equipment may not be sufficient to maintainyour targeted humidity levels. Proper control ofthe system is needed to achieve its full moistureremoval more energythan controllingtemperature the amount ofpower used by takingadvantage of the manysolutions Trane offersfor moisture local Trane salesengineer can help youselect the right optionfor your application.

5 Split Dehumidification Units (SDU)An SDU is a dual-path, return-air-bypass airhandler. It consists of two units that are stackedtogether in a draw-thru arrangement that shareone supply fan. All of the ventilation (outdoor)air is ducted to the upper unit where it isdehumidified, typically down to 50 F or lower unit is sized to handle the return airneeded to achieve the desired air-change rate inthe space. The warmer return air in the lowerunit mixes with the cooler, air from the upperunit. The resulting mixed air provides humiditycontrol by achieving a sensible heat ratio (SHR)of down to , yet provides sensible reheatwithout using any new energy. Runaround coil loopsRunaround loops are a proven technology thatprovide some Dehumidification with minimaladditional has the optimal moisture removal solution for every applicationRemoving moisture from the air before it entersthe building improves indoor air quality.

6 It alsoenables the use of terminal devices, such asvariable refrigerant flow heat pumps and chilledbeam panels, that are best applied whensensible only cooling is needed in the space. Note: this unit may qualify for LEED packaged units delivercost-effective moisture removalTrane offers solutions for moderatedehumidification needs as well as high-demandapplications. The Trane Precedent andVoyager lines of light commercial units giveyou reliable Dehumidification plus packaged unitconvenience and affordability. Sized up to 20tons, Precedent and Voyager rooftop unitsprovide effective indoor climate control for abroad range of facilities. Equipped with hot-gasreheat, these cost-effective units will also fulfillyour Dehumidification needs. point. Equally important, a CDQ system canreduce energy consumption by up to 60 percentcompared to a cooling coil with CDQ units have Trane unit controls andtemperature/humidity sensors designed for itsspecific application.

7 A Traq outside-airflowmonitoring sensor and fan inlet-airflowmeasuring system with a piezometer ring areoptional. Note: this unit may qualify for LEED innovation air handlers with CDQdehumidification and energy recoverywheels save energy, space and costsTrane air handlers can include both a CDQdesiccant Dehumidification wheel and an energyrecovery wheel for thermal savings. These unitsare cataloged 100 percent dedicated outdoor airunits or mixed-air units. CDQ technology improves thedehumidification capacity of astandard cooling coil from 20to 300 percent, enabling a 5-to 15-degree lower dewpoint, and reduces energy. Trane CDQ system delivers breakthroughhumidity control and energy efficiencyThe Cool Dry Quiet (CDQ ) dehumidificationsystem available in Trane Climate Changer airhandlers was developed in collaboration withthe Department of Energy (DOE) throughthe Oak Ridge National Laboratory, the FloridaSolar Energy Center and Trane .

8 This systememploys a desiccant wheel in addition todirect-expansion (DX) or chilled-water coolingcoils. After cooling and initial moisture removalvia the coils, supply air is streamed over thedesiccant wheel, which attracts and holds watervapor. When the air is regenerated upstream fora second pass over the cooling coil, additionalmoisture is removed. Performance tells the story: a CDQ systemimproves the Dehumidification capacity ofstandard cooling equipment from 20 to 300percent, enabling a 5- to 15-degree lower dew54 Dehumidification SolutionsSplit Dehumidification Units (SDU)An SDU is a dual-path, return-air-bypass airhandler. It consists of two units that are stackedtogether in a draw-thru arrangement that shareone supply fan. All of the ventilation (outdoor)air is ducted to the upper unit where it isdehumidified, typically down to 50 F or lower unit is sized to handle the return airneeded to achieve the desired air-change rate inthe space.

9 The warmer return air in the lowerunit mixes with the cooler, air from the upperunit. The resulting mixed air provides humiditycontrol by achieving a sensible heat ratio (SHR)of down to , yet provides sensible reheatwithout using any new energy. Runaround coil loopsRunaround loops are a proven technology thatprovide some Dehumidification with minimaladditional has the optimal moisture removal solution for every applicationRemoving moisture from the air before it entersthe building improves indoor air quality. It alsoenables the use of terminal devices, such asvariable refrigerant flow heat pumps and chilledbeam panels, that are best applied whensensible only cooling is needed in the space. Note: this unit may qualify for LEED packaged units delivercost-effective moisture removalTrane offers solutions for moderatedehumidification needs as well as high-demandapplications. The Trane Precedent andVoyager lines of light commercial units giveyou reliable Dehumidification plus packaged unitconvenience and affordability.

10 Sized up to 20tons, Precedent and Voyager rooftop unitsprovide effective indoor climate control for abroad range of facilities. Equipped with hot-gasreheat, these cost-effective units will also fulfillyour Dehumidification needs. point. Equally important, a CDQ system canreduce energy consumption by up to 60 percentcompared to a cooling coil with CDQ units have Trane unit controls andtemperature/humidity sensors designed for itsspecific application. A Traq outside-airflowmonitoring sensor and fan inlet-airflowmeasuring system with a piezometer ring areoptional. Note: this unit may qualify for LEED innovation air handlers with CDQdehumidification and energy recoverywheels save energy, space and costsTrane air handlers can include both a CDQdesiccant Dehumidification wheel and an energyrecovery wheel for thermal savings. These unitsare cataloged 100 percent dedicated outdoor airunits or mixed-air units. CDQ technology improves thedehumidification capacity of astandard cooling coil from 20to 300 percent, enabling a 5-to 15-degree lower dewpoint, and reduces energy.


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