Friedrich A-SERIES manual Indoor Return Air Grille Installation, Return Air Grille Options

920-075-08

4) Indoor Return Air Grille Installation

There are two Indoor Return Air Grille options as shown in Figure 8. Choose the option that best suits your needs. Use the installation instructions provided with accessories for installation details.

Figure 8

Return Air Grille Options

Option 1

VPRG4

Return Air Grille with Access Panel

A field-supplied (25" x 20") filter is mounted inside the hinged access door.

Option 2

Field Supplied

Return Air Grille

Must have a minumum of 220 square inches of free area.

All Vert-I-Pak chassis are shipped with a 14 x 20 filter installed. If an accessory filter holder is to be used, you MUST remove the factory shipped filter from the chassis. Do NOT use two filters

Notes:

A.These are the Friedrich recommended return air grille / filter / access panel arrangements. Consult the factory on other arrangements. Improper return air arrangements will cause performance problems.

B.Return air arrangements are shown from the front, but can also be installed from the right or left side of the unit.

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