State EPX 80 DHPT User Manual download pdf (Page 5)

OUTLET DUCT

KIT ADAPTER

LOUVERED

GRILLS

MINIMUM

16” X 24”

8 INCH

FLEXIBLE

DUCT

TERMINATION

OR GRILL

CONFINED

SPACE

AIR FLOW

BOOT/COLLAR

AIR FLOW

BOOT/COLLAR

EXTEND DUCT

ABOVE INSULATION

IN ATTIC SPACES

FIGURE 4

Confined Space Installation

The heat pump water heaters covered in this manual require a minimum of 750 cubic feet of installation space. When a space

meeting this minimum requirement is not available these units may be installed in spaces with less than 750 cubic feet (conned

spaces) when provisions are made by installing an accessory Outlet Duct Kit and/or louvered grills as described in this section.

Inlet air will be derived from an alternate location inside the building structure through one or more louvered grills or through a fully

louvered door leading into the conned space. The alternate location from where inlet air will be derived must provide a minimum of

750 cubic feet of space when using this installation method. When the Outlet Duct Kit is installed outlet air from the unit is redirected

to an alternate location. The alternate location to where outlet air will be redirected must also provide a minimum of 750 cubic feet

of space.

Other congurations are possible when using the Outlet Duct Kit (PN 9910006000) and/or the Inlet Duct Kit (PN 9910005000) with

these water heaters. Consult the installation instructions included with the duct kits for additional information. These instructions

are also available on the manufacturer’s web site. Contact the distributor where the water heater was purchased for information on

ordering these duct kits.

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State EPX 80 DHPT User Manual Page 5