Comfort Series Energy Recovery Ventilator Why Fresh Air Ventilation is Vital for Today s Energy-Efficient Homes
LEED Certification Points Carrier, the world s leader in high technology heating, air conditioning and refrigeration solutions, is the ideal choice for those who are passionate about green technologies. Carrier experts provide sustainable solutions, integrating energyefficient HVAC equipment, controls, and indoor air quality products for residential customers. Installing a Carrier Comfort series ERV could earn two points toward LEED for Homes certification. Why is Ventilation Important? According to U.S. Environmental Protection Agency studies, on average, Americans spend approximately percent of their time indoors where pollution level concentrations can be up to five times higher than typical outdoor levels. Proper ventilation can reduce airborne indoor pollutants such as dust, mold, gasses and chemicals. t Enough Ventilation Just Right Too Much Ventilation Health Effects VOC Off-Gassing Stale Air Contaminant Build-Up Comfort and Economy Balanced Air Flow In/Out Improved Comfort Improved Humidity Fresh Air Energy Effects Additional Heating and Cooling Excess Humidity Proper sizing is vital for maximizing the benefits of fresh air ventilation. t enough or more than enough ventilation can both cause problems, including poor indoor air quality, comfort issues and wasted energy. 2
For Homeowners Fresh air ventilation has become an issue for today s homes due to tighter construction. From the homeowner s perspective, the benefits of a tighter-built home are many: lower heating and cooling bills fewer drafts better comfort better HVAC performance potentially reduced HVAC capacities (lower installation cost) For Builders For builders, there is the matter of meeting IECC (International Energy Conservation Code) standards regarding air sealing. In order to comply with the 2012 IECC standards, a home must pass both visual inspections as well as meet the air changes per hour (ACH) threshold of less than five per hour in climate zones 1 and 2, or less than three per hour in climate zones 3 8.* Opening windows will provide some fresh air as long as your customers don t mind watching their heating and cooling costs rise. And during the heat of summer or the dead of winter, it s just not practical. With the Carrier Comfort series ERV, you can offer a more sensible approach. It provides the required ventilation, captures the energy of the heated or cooled outgoing air and transfers it to the fresh incoming air. As a result, there is minimal heat loss in the winter, humidity stays under control during the summer and the homeowner can enjoy energy-efficient comfort all year long. *See climate zone map on pg. 4. ** Hours of Higher Winter Humidity Using ERV ** 5000 4000 3000 2000 1000 0 Atlanta Dallas Chicago St. Louis Denver Phoenix **Carrier modeling 3
The Carrier Solution Several types of mechanically-aided ventilation systems have been employed over the years. Spot ventilation using exhaust fans in specific areas such as a kitchen or bathroom, or whole-home type fans for supply air are among the options. These systems are limited in their ability to solve the tight-home syndrome. For a truly balanced approach to ventilation, a Carrier Comfort series ERV can help re-invigorate the home with a dose of fresh outdoor air while exhausting airborne pollutants. It s like opening the windows and letting the fresh air in, without letting the comfortable heated or cooled air out. Comparison of Ventilation Strategies Feature Considerations ERV or HRV Exhaust Only Supply Only Barometric Damper Open Vent Open Window Is the incoming and outgoing air volume balanced? Is the air volume controlled? Does the strategy maximize air changes? Does the strategy provide uniform ventilation? Is the strategy free from adverse pressurization? Is the strategy free from adverse de-pressurization? Is the incoming air filtered? Is incoming air pre-cooled in hot weather? Is incoming air pre-heated in cold weather? Maybe Maybe Is moisture removed from incoming air in the summer? Is moisture added to incoming air in the winter? Is it recommended for humid climates? Is incoming air free from gaseous pollutants in construction materials? Is the strategy free from potential backflow of combustion gas? Is the strategy free from security concerns? Sizing the System ASHRAE Standard 62.2 (2010) provides guidelines for the appropriate amount of ventilation required based on the size of home and number of bedrooms. Climate Zones The Carrier Comfort series ERV is designed for use in IECC climate zones 1 through 5. House Size 0-1 Number of Bedrooms 2-3 4-5 6-7 >7 Sq. Ft. 1500 30 45 60 75 1501-3000 45 60 75 3001-4500 60 75 120 4501-6000 75 120 135 6001-7500 120 135 150 >7500 120 135 150 165 4
Leaders in Technology and Innovative Design 1 5 1 Fresh Air Port This port brings fresh outside air into the ventilator. A fresh air filter removes airborne particles from incoming air. 8 2 Heat Recovery Core 3 The core maintains system efficiency by recovering heating or cooling energy from exiting stale indoor air. It can also remove excess humidity from incoming air during the summer. Supply Opening 7 2 3 Fresh conditioned air passes through this opening, back to your home comfort system for distribution to your home. 6 4 Stale Air Opening Stale indoor air passes through the opening into the heat recovery core. 4 5 Exhaust Port 7 Filter Stale air is exhausted outside after heating or cooling energy has been transferred to incoming fresh air. Efficient MERV 6 filter removes airborne particles for better indoor air quality and protection of the core. 6 Access Door 8 Blower Motors Removal of the door requires no tools and makes it easy to access the filters and core for cleaning. Three-speed blower motors provide just the right amount of fresh air into the home. Air Flow Through Ventilator Stale air exhaust to outside Fresh air from outside Ports accommodate common 6 flex duct. How Ventilation Affects Efficiency Fresh air to house Stale air from house A simpler solution to getting fresh air into a home would be to simply open the windows. Unfortunately, this would also result in a significant rise in energy costs as heated or cooled air escaped into the great outdoors. A Carrier Comfort series ERV provides the needed ventilation while also recapturing the energy of the heated or cooled outgoing air and transferring it to the fresh incoming air. By minimizing heat loss and helping maintain proper humidity, it can balance the very best of comfort, energy efficiency and utility costs. 5
Application Flexibility Compared against many currently available HRV or ERV models, the Carrier Comfort series ERV offers a number of advantages that makes it one of the most flexible, easy to install, and unobtrusive whole-home ventilation systems. Starting with the cabinet dimensions, this unit is physically smaller and more compact than others on the market. It s designed to perfectly complement a wide range of Carrier indoor units, including the Comfort 80 (58DLA) gas furnace. Installed directly to the indoor unit or ductwork, it eliminates two potentially difficult or costly duct connections. When you add up all the potential configurations for upflow, downflow, horizontal left and horizontal right, there are more than a dozen different installation options at your disposal. Finally, there is no separate wall control required to operate this unit, so installation is simple, clean and less time consuming than competing models. Possible ERV Locations When Used with Gas Furnaces Possible ERV Locations When Used with Fan Coils 6
The heat recovery core transfers heating or cooling energy from exiting stale indoor air to the incoming fresh outdoor air without mixing the air streams, so you continue to enjoy heating or cooling comfort and economy. The core also helps maintain proper humidity to maximize comfort. 10 YEAR LIMITED WARRANTY Limited Warranty To the original owner, the Carrier Comfort series energy recovery ventilator is covered by a 10-year parts limited warranty upon timely registration. The warranty period is five years if not registered within days of installation. Jurisdictions where warranty benefits cannot be conditioned on registration will receive the registered limited warranty period. See warranty certificate at carrier.com for complete details and restrictions. 7
Carrier Ventilators Carrier offers a variety of heat recovery ventilators (HRVs) and energy recovery ventilators (ERVs) that work quietly and efficiently to bring fresh air into the home all year long. HRVs In more northern climates where summers are shorter and less humid, a heat recovery ventilator is better suited to keep indoor air refreshed. It pre-conditions air to cool it in summer and warm it in winter before it enters the house. ERVs ERVs are made for warm, humid climates. They ll bring fresh air into the home while removing humidity for comfort and energy-efficient operation. Additional Indoor Air Quality Products Infinity Air Purifier UV Lamps Infinity Air Purifier improves air quality beyond filtration with patented Captures & Kills technology, effectively eliminating airborne bacteria and viruses and other irritating airborne pollutants in your home. UV Lamps inhibit the growth of contaminants on the indoor coil, leaving the home with cleaner, fresher indoor air. Keeps the indoor coil clean while maintaining performance. Performance Air Purifier Performance series air purifier offers a more budget-conscious purifier option that fits into narrower spaces while still providing effective, Captures & Kills technology. Humidifiers Humidifiers replenish moisture to dry air. Saves energy, improves comfort. Protects woodwork and reduces annoying static shocks. Model ERVXXNVA Carrier Corporation 9/2013 01-IAQ-066-25 www.carrier.com Always look for these symbols, the air conditioning and heating industries seals of certified performance, efficiency and capacity. 1-800-CARRIER A member of the United Technologies Corporation family. Stock Symbol UTX. Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice or without incur ring obligations.