Package-Type Dual-Fuel Heat Pumps.

Package-Type Dual-Fuel Heat Pumps. This section is related to the installation of all package-type dual-fuel heat pump systems (single-package units that incorporate both a standard electric heat pump and a fossil-fuel furnace). The package-type dual-fuel heat pump shall meet or exceed the minimum HSPF and SEER requirements of package heat pumps as stated under Equipment Requirements subsection, item 1.
Manufactured Home Heat Pump Systems. This section is related to the installation of heat pump systems installed in manufactured homes built to the Department of Housing and Urban Development's Federal Manufactured Home Construction and Safety Standards, 1976. (Manufactured homes built prior to 1976 are not eligible to participate in the energy right Heat Pump Plan except when evidence through analysis indicates the manufactured home can achieve acceptable comfort levels following a heat pump installation with newly installed program ductwork.) 1. Heat pumps installed in manufactured homes may use the existing ductwork or new, field-installed ductwork. For existing manufactured homes manufactured ductwork, only items 9, 10, 14, and 15 of the Duct System Design, Modification, and Installation section shall apply. However, the average face velocity of each supply register shall not exceed 700 feet per minute or be less than 400 feet per minute. All field-installed supply and/or return ductwork shall be in accordance with the equivalent Installation and Duct System Design, Modification, and Installation sections. All other sections in these Installation Standards are applicable unless otherwise noted. 2. All heat pumps installed in manufactured homes shall operate within manufacturer's specifications and be approved for that use by the heat pump equipment manufacturer. The duct system shall provide the amount of air flow across the indoor coil as listed in the heat pump manufacturer's specifications. The installing QCN member is responsible for obtaining the required air flo