H
Heating, Ventilation, and Air Conditioning
Field Verification: The Rater will confirm the existence and location of supply ducts and grilles.
Documentation: A mechanical engineer, HVAC installer, or other appropriate professional should provide documentation of ventilation duct layout and supply grilles.
INTENT
H7.
To improve indoor air quality( IAQ), incorporating best practices into the design, installation, and operation
DRAFT of whole-house mechanical ventilation systems.
EFFECTIVE RANGE DESIGN AND INSTALLATION
CRITERIA FOR QUALIFICATION One point is available as follows:
The following list describes prescriptive practices to address and improve the capture effectiveness of pollutant removal, all of which must be met:
� The capture hood of the range must extend at least 75 % over the front burners, to make sure the hood can capture the front burners. � The fan( s) must be recessed in the capture hood. � The inlet must be mounted in the center of the capture hood. � The fan( s) must move a minimum of 200 cfm. � The fan( s) must have a sone rating of 3 sones or less for 200 cfm.
The following must be verified:
� If the range hood moves more than 400 cfm, then make up air must be interlocked with the range hood.
� If the house contains natural draft combustion appliances, then the sum of the two largest exhaust fans in the house cannot exceed 15 cfm per square foot.
VERIFICATION
Field Verification: The Rater will conduct field compliance verification of capture hood alignment with front burners, presence of the recessed fan, and that the fan meets specifications.
Documentation: The Rater will collect documentation of the range hood air flow capacity and sone level.
INTENT
To promote indoor air quality, reduce moisture vapor, and save energy by using energy efficient technology and controls.
DRAFT GreenPoint Rated New Home Rating Manual Version 6.0, September 2013 55 © Build It Green