9
INSTALLATION (CONTINUED)
Grille Installation and Removal
The RSR unit is supplied with a standard removable grille made of 40% open area in Painted Steel,
Aluminum, and Stainless Steel. Grille mounting is supplied as standard four (4) corner acorn nut
design for 2x2 & 2x4 units and eight (8) acorn nuts for 3x4 & 4x4 units. The grille is fastened onto
threaded studs using acorn nuts, one in each corner for 2x2 & 2x4 units and two along each side
for 3x4 & 4x4 units (see Fig 7 below). The threaded studs protrude from the RSR Adaptor frame and
through the grille to the room side. Acorn nuts and flat washers are installed on each stud to secure
the grille in place.
To remove grille:
1. Loosen and remove the acorn nuts and flat washers.
2. Carefully remove and lower the grille. To avoid potential injury, it is strongly recommended two
people perform this task.
To replace grille:
1. Align the holes in the grille with the studs.
2. Hold the grille in place and reinstall the flat washers and acorn nuts. To avoid potential injury, it
is strongly recommended two people perform this task.
3. Hand-tighten the acorn nuts. Do not use a wrench or socket, as overtightening may damage
the threaded connection.
RSR
Adaptor
Frame
RSR Filter
Filter Retainer
Gel
Stud
Filter
Media
Acorn Nut
Grille
Fig. 7 Roomside Change Frame
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General