6 - HVAC, Plumbing and Electrical

Info-601: Sealed Combustion: In order to ensure good indoor air quality, all combustion appliances are recommended to be sealed combustion units, as opposed to naturally aspirated units.
Info-602: Ducts in Conditioned Space: The location of the duct system can have a significant impact on the overall performance of the system–both the utility use and the ability to provide comfort.
Info-603: Duct Sealing: Ductwork, furnaces and air handlers should be sealed against air leakage.
Info-604: Transfer Ducts and Grilles: The ductwork systems in these houses are designed to supply air to the individual rooms, and to have the air return to a central return grille.
Info-606: Placement of Intake and Exhaust Vents: Ventilation system intakes must be sufficiently separated away from potential contaminant sources, and locations of dust and debris.
Info-610: Central Fan Integrated Ventilation Systems: All buildings require controlled mechanical ventilation, or the controlled, purposeful introduction of outdoor air to the conditioned space.
Info-620: Supplemental Humidity Control: High performance homes—due to superior insulation, better performing windows and more efficient lighting and appliances, can be expected to have smaller sensible cooling loads than typical new homes in the same geographic region.
Info-607: Refrigeration System Installation and Startup Procedures, and AC Equipment Efficiency: The performance of the cooling system is evaluated and assured through a series of measurements including: air flow, pressures, temperatures, humidity levels, and power draw.
Info-608: What's the Big Deal About Refrigerant Charge—Why Should the Builder or Homeowner Care?: A brief explanation of system charging, superheat and subcooling including results of improper charging.