Specifications
• Easy Installation
• Lightweight Doors
• Energy Eciency
• Low Maintenance
• Fully Assembled
System Features:
Tunnel Inlet Door Systems
Tunnel inlets help to eliminate dead zone areas created by curtain
sidewalls and curtain pockets. Cumberland offers single door and
two door tunnel inlet options. The single door comes fully assembled
and is a rigid laminate foam panel that is ultra lightweight for easy
installation. The two door is comprised of rigid PVC. All brackets are
galvanized for durability and long life.
With an insulation value of R-8,
the SINGLE DOOR TUNNEL
INLET provides excellent
energy savings compared to
conventional curtain inlets.
Cumberland’s single doors are comprised
of lightweight rigid laminate foam panels
and include a proled rubber seal for an
airtight fit. Single door tunnel inlets are
available in 4’, 5’, & 6’ heights and include
two color options, black for dark out
conditions, and white when dark out
conditions are not required.
Over time, cords can stretch
requiring tension re-adjust-
ment. Cumberland’s easy
adjuster makes insuring a
reliable door seal a simple
task.
Spring tension bracket
helps maintain proper seal
when doors are closed.
Cumberland’s FORMED RUBBER SEAL (prole
right) provides an airtight seal. Molded runners
make for easy alignment and quick installation.
TWO DOOR TUNNEL INLETS are constructed of lightweight
rigid PVC allowing for easy installation and 9 times the
insulation value of conventional curtain material. H-channel
and C-channel slide onto the PVC panels for a proper seal.
These inlets are only available in white and can be operated
with a curtain machine.
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