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Take Control of Indoor Humidity with a Whole-Home Dehumidifier

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Take Control of Indoor Humidity with a Whole-Home Dehumidifier Model 1700 Dehumidifier Take control of indoor humidity with a whole-home dehumidifier You cannot rely on air conditioners alone to control humidity in a home. They are designed for sensible According to Engineered Systems cooling. Latent cooling is only a by-product. magazine, air conditioners are Your customers today are not comfortable in their homes. simply not getting the job done The drive to improve energy efficiency (from better effectively and efficiently. windows and insulation to higher SEER air conditioners) has greatly improved temperature control, but adversely affected humidity control. Homes have become trapped with moisture causing stuffy, clammy environments that are both uncomfortable and unhealthy. Number of hours when dehumidification is necessary: Time above 55˚FNumber dew point of hours and when outdoor dehumidification temperature is betweennecessary: 55˚F and 75˚F (humidityTime above levels 55˚F dew high, point and but outdoor air conditioner temperature between is not 55˚F running) and 75˚F That is why it is critical for all your customers to (Humidity levels high, but air conditioner is not running) 450 install a system designed specifically to control the Miami: 2290 hours annual 400 latent load in the home. Chicago: 1447 hours annual 350 Air conditioners are controlled by a thermostat; they have 300 no way to specifically control the humidity levels. Even attempting to override the air conditioning with advanced 250 thermostats doesn’t manage humidity; it simply overcools 200 Number of Hours the home in an attempt to remove moisture. It’s the wrong 150 tool for the job. 100 50 Whole-home dehumidification is a real need with average summer dew points exceeding 50˚F in virtually all of the U.S. 0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Dehumidification needed throughout the country 50˚ The need for dehumidification varies in different regions. 60˚ But regardless of locale, your customers need a system designed to control humidity separate from cooling. Control is needed in areas where dew points average above 65˚ 55˚F and at times when the air conditioner runs infrequently 70˚ or not at all (evenings, cloudy/rainy days or during spring and fall seasons when temperatures are mild). Better air conditioning does not equal humidity control The new, higher SEER air conditioners do a great job of controlling temperature, but controlling temperature is only Don’t lose profits to portable dehumidifiers: part of the story. Their efficiency rating is focused exclusively on sensible load. Today’s units have Sensible Heat Ratios they only do part of the job (SHR) of 0.75 or higher. To achieve higher SEER, many units take up to 8 minutes or longer to reach maximum efficiency Energy efficiency at pulling moisture from the air. Combined with new coil designs that drop the temperature quickly in a home for faster comfort, all of these improvements in temperature control lead to the air conditioning running less frequently and, Your customer knows there’s a need to control excess moisture. Portable dehumidifier sales continue to 5 therefore, reducing the ability to decrease the latent load. 50% more increase. According to Appliance Manufacturer magazine, water removed per KWH portable sales in 2003 grew over 60% to more than Air conditioning is sized based on peak sensible load conditions. This condition is reached only 3% of the year. 4 The other 97% of the year, air conditioners operate at only part-load conditions, shortening run times and further reducing 1.5 million units. the amount of moisture that can be removed from a home. • Any time a home has a reduced Sensible Heat Load (evenings, cloudy/rainy days, mild weather seasons, etc.) the But, portables simply do not do the whole job. They’re 3 air conditioner doesn’t operate as frequently, so indoor RH can rise to uncomfortable levels. a hassle for homeowners, with daily maintenance of • Air conditioners short cycle when not at peak load, often never reaching the point at which they can remove emptying tanks, freezing coils and noisy operation. Because of its robust design, the Aprilaire Model 1700 2 significant moisture. Energy factor Dehumidifier offers 73% more water removal per kilowatt (Pints/Kilowatt Hour) hour than most portables over a much broader range Data demonstrates why dehumidification separate from the air conditioner is needed of operating conditions. 1 Installed dehumidifier (Low sensible load times, nights & shoulder seasons) provides immediate 80 Indoor temp Energy efficiency is important to your customers and the Aprilaire Model 1700 delivers three times the capacity 0 benefit in the home ® 70 at twice the energy efficiency of typical portables. Energy Star Energy Star® RH controlled Portable Aprilaire 60 when A/C off and dehumidifier on Model 1700 Real field test data (chart to right) Dehumidifier proves the effectiveness of the 50 Aprilaire Dehumidifier. Before 40 Indoor RH installation, indoor relative humidity RH increases Innovative Aprilaire when A/C off spiked when the air conditioner was 30 whole-home dehumidifier A/C state (on/off) off, especially during daytime and 20 Dehumidifier overnight setbacks. After installation, state (on/off) outperforms portables 10 Operating range the dehumidifier works together with mperature and relative humidity (˚F/%) Te The Aprilaire Model 1700 includes a Thermostatic the air conditioning system to control 0 Model 1700 whole-home dehumidifier Expansion Valve (TXV) which provides optimal Model 1700 Dehumidifier vs. leading portable temperature and humidity effectively. Days Aprilaire Dehumidifier installed versus leading portable at 60% relative humidity Source: Research Products Corporation performance of unit throughout operational range at 60% relative humidity of 40˚F to 105˚F. 100 Aprilaire Model 1700 Dehumidifier Residential portable dehumidifiers generally have 90 The only way to control humidity a fixed restriction device, such as a capillary tube. This limits the temperature range in which 80 is to have a system dedicated portables can operate. 70 to dehumidification 60 Leading portable Air conditioner manufacturers are offering advanced 50 thermostats that run the air conditioner beyond the 40 Aprilaire is the solution to ater removal (pints/day) intended thermostat set point in order to reduce humidity. W whole-home humidity control, Extending air conditioner run time will pull additional 30 moisture out of the air, but by design it is much more 20 bringing 50 years of research efficient at temperature control. Using the thermostat 10 can overcool a home by as much as 3˚F. According to the and expertise to deliver 60 65 70 75 80 Florida Solar Energy Center, overcooling increases break-through technology. energy costs by 10% for every 1˚F of cooling. Inlet air temperature in (˚F) Source: Research Products Corporation The Aprilaire Model 1700 Whole-Home Dehumidifier A market innovation and solution How the Aprilaire Dehumidifier works to humidity control • Moist air is pulled from the living space, basement or HVAC return through the dehumidifier evaporator coil Blower Evaporator Aprilaire brings 50 years of research and experience in using an internal blower. humidity control. The Aprilaire Model 1700 Dehumidifier Intelligent solutions combines whole-home comfort with built-in intelligence for indoor environments • Refrigerant in the evaporator coil cools the air passing Dry, Warmer features like fan cycling and ventilation. Superior design Air Out over the coil to below dew point. The custom, extra- allows it to remove excess moisture throughout the entire • Automatic humidity control automatically thick evaporator coil is specially designed to maximize home as part of the central HVAC system. Yet it operates senses moisture levels in the home and runs only the condensation of moisture. As a result, moisture when needed. Your customer never needs to make independently from the cooling system to control indoor Humid Air condenses on the coil and drips off into the drain at Room adjustments to maintain proper moisture levels. Temperature pan. The unit will remove 90 pints per day (minimum) humidity within the ASHRAE comfort window of 30-60% RH. In at 80˚F and 60% RH. • Built-in automatic switching from whole-home Exceptional performance mode to basement so you simply wire dampers and • The cool, dehumidified air then passes through the • Capacity of 90 pints/day gives you the flexibility to the dehumidifier takes over operation. TXV condenser coil. As it does, the hot refrigerant in the use the dehumidifier in a wide variety of home sizes Condensate condenser coil warms the air. • Optional living space control provides in-room Compressor Drain (to drain hose) (see back page). control for customers who want access in their Condenser • The warm, dry air is then discharged to the • Thermostatic Expansion Valve (TXV) allows living space (available Summer 2004). living space, basement or HVAC supply duct. the unit to remove more moisture across a broad The dehumidified air can be mixed throughout • Built-in fan cycling improves humidity and range of temperatures, providing you flexibility in the whole-home with the use of the built-in fan temperature balance throughout the home, minimizing installation locations. cycling feature. hot/cold spots and improving air cleaner, dehumidifier • Quiet operation with fully insulated interior and and humidifier performance for better overall comfort. vibration isolation floor mounts. • Built-in ventilation brings in the proper quantity
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