Installation Guide

MAINTENANCE:
• Always remove hose in freezing temperatures to
ensure complete drainage.
• The T-550’s freeze-resistant design permits water
shutoff inside of a heated building. However, as
specified in the Residential Plumbing Code Section
P2903.10, an additional waste-equipped valve may be
required:
IRC P2903.10 Hose Bibb
. Hose bibbs subject to
freezing, including "frost-proof" type, shall be
equipped with an accessible stop-and-waste-type
valve inside the building so that they may be
controlled and/or drained during cold periods.
Legend recommends the addition of a
stop-and-waste-type valve (stop-type or ball-type)
upstream of the T-550 in seasonally-heated or
non-heated installations such as vacation homes,
commercial buildings, garage, crawlspace or
wing-wall cavities. The valve should be installed in
an accessible location, where the drained water
won't damage the surrounding area.
• Avoid painting over the handle, body or vacuum
breaker assembly.
• Do not remove the top-mounted vacuum breaker cap.
The cap diverts water downward as the vacuum
breaker's internal piston operates.
It is a normal
function of the vacuum breaker to allow some water
to escape before the piston closes completely!
However, a continuous stream of water flowing from
the bottom of the cap indicates a fouled or failed
vacuum breaker assembly.
• Intermittent leakage from behind the handwheel is
normal under certain operating conditions. When a
hose nozzle is attached to the end of a garden hose
which is attached to the T-550's outlet, excess
backpressure may result. This backpressure is
relieved through a small vent hole immediately
behind the handwheel. A continuous stream of water
flowing from behind the handwheel indicates a failed
stem packing or vent.
• Avoid imparting body stresses by not hanging a
coiled hose or not stepping onto the installed T-550.
• Avoid the use of hose bibb accessories such as hose
manifolds, hose Y-splitters or sprinkler timers, which
may cause the T-550 to malfunction. The T-550 is
designed and certified in accordance with ASSE
Standard 1019 Section 1.2.1, for non-continuous
pressure service:
Not more than twelve hours of
continuous water pressure.
Outlet-mounted devices
may cause sudden or continuous, damaging
back-pressures.
• While the T-550’s body and handle are resistant to
most household chemicals, avoid exposure to harsh
chemicals, such as acids, paint thinners or bleach.
Cover or wrap the T-550 when using a pressure
washer, chemical siding wash or brick cleaning
formulas.
• Do not force the handle open or closed. The handle
will operate in a smooth, quarter-turn operation. If
not, check for obstructions (debris, rocks, etc.)
behind the handle. If after checking, the handle still
does not operate in a smooth, continuous manner,
contact a licensed contractor.
• Annually, check the screws that attach the sill flange
to the sill. Make sure they hold the T-550 firmly,
without allowing movement.
• Do not attempt to disassemble or service the T-550. A
qualified, licensed contractor should be contacted in
the event of a malfunction or failure.
For a complete list of replacement parts and a
components diagram, please visit us at
www.legendvalve.com
www.legendvalve.com
1-800-752-2082
MODEL T-550 I-O-M
ANSI/NSF 61-9 Compliant
1019
Patent: US: 5,392,805
CAN: 2,211,042
D: 527,797