6.6203.1 Ventilator Dehumidifiers

Topic:

Whole Building Ventilation

Subtopic:

Dehumidifiers

Desired Outcome:

Humidity controlled to achieve optimum indoor air quality ( IAQ IAQ Indoor air quality )

For supporting material, see Referenced Standards and Calculation of the Infiltration Credit.

Single-Family Homes

	Title	Specification(s)	Objective(s)
	6.6203.1a Equipment	Equipment will be ENERGY STAR® rated Settings will be maintained through power failure (auto restart) Dehumidification ventilator will be a ducted unit Dehumidification ventilator will be able to provide outside air	Efficiently remove humidity Ensure ease of operation Provide ventilation with outside air
	6.6203.1b Sizing	System with enough capacity to handle humidity from outside air ventilation and internal gains will be selected Humidity levels inside the home will be maintained less than 60%	Efficiently remove humidity
	6.6203.1c Location	Equipment will be located in an area with access to HVAC HVAC Heating, ventilation, and air conditioning supply trunk line or plenum and ducted outdoor air Access for maintenance, electrical service, and removal of condensate will be provided	Distribute outside air Easily maintain equipment
	6.6203.1d Installation	Installation will be in accordance with manufacturer specifications and local codes	Maintain manufacturer warranty and proper installation
	6.6203.1e Duct connections	Duct connections will be sized, sealed, and attached in accordance with manufacturer specifications	Achieve the desired air flows to and from the desired locations
	6.6203.1f Controls	Humidity control and sensor will be installed in accordance with manufacturer specifications near thermostat	Ensure humidity in the house controls the system operation