Whirlpool DryAire LMA1053L Specifications download pdf (Page 13)

DryAire Systems 12

2.1. Ducted Air Systems

Supply air from the dehumidifier should be directed away from the swimming pool and

whirlpool surfaces and towards all exterior walls, especially any glass surfaces such as

window areas, skylites, or patio doors. Grille sizing is also very important, check CFM rating.

A single central return air grille located on the wall as high as construction permits will be

sufficient for most installations to prevent temperature stratification within the area.

Materials such as galvanized steel, aluminum, or PVC coated pipe are generally acceptable

for duct installations. PVC or plastic coated galvanized spiral pipe is best suited for below

grade ductwork installations. If ductwork is installed in an unconditioned space, be sure to

insulate with a minimum of 2” fiberglass duct wrap with a vapor barrier facing. Due to the

elevated humidity conditions in a pool or spa enclosure, avoid the use of fiberglass duct board

or duct liners to prevent mold and bacteria growth.

Figure 2.1.2. Duct Layout

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Whirlpool DryAire LMA1053L Specifications Page 13