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Installation Instructions
17
INSTALL THE WALL CASE AND
EXTERIOR GRILLE
The RAB71A series or RAB77A4 wall case must be
properly installed per instructions packed with the case.
• Remove the corrugated stiffener and the outdoor
protective panel. Use the slit in the outdoor panel
as a handhold and push out.
• Install the exterior grille from the room side following
instructions packed with the grille.
Insulated Wall Case
This unit is designed to be installed in a GE plastic
or an insulated steel wall case. This minimizes
condensation from forming on the room side of
the case.
The RAB71A series wall cases are insulated. Insulation kit
RAK901L is available for use with RAB77A4 or existing
uninsulated wall cases when needed.
NOTE: For installation with a subbase or duct adapter,
see the instructions packed with those kits.
1
Stiffener
Protective
panel
Slit
PREPARE THE UNIT
• Carefully remove shipping tape and foam shipping
blocks from the room cabinet, compressor and
vent door. There may be multiple blocks and pieces
of shipping tape that need to be removed.
• Remove the room cabinet by pulling it out at the
bottom to release it (1); then lift it up to clear the rail
along the unit top (2).
• If vent door is to be operational, remove shipping screws
from the front side of the ventdoor,if present.
2
Shipping tape
(Locations may vary)
Remove two
shipping screws
(if operation is
desired)
INSTALLING THE ZONELINE