Knox FDC Lock User manual

The Knox FDC Lock has been designed for ease-of-use when installing or removing the lock from a fire
department connection (FDC). Fire personnel properly equipped with a Knox FDC Spanner Wrench or
Knox Keywrench can quickly remove the lock. In the event of debris or ice buildup on the locking bolt
head, a small flathead screwdriver or similar tool will quickly remove any foreign matter.
OPE-KBSPEC-0024-C
1601 W. DEER VALLEY RD. PHOENIX, AZ 85027 | T. 800-552-5669 | F. 623-687-2290 | [e-mail] | KNOXBOX.COM
©Knox Company. All rights reserved.
KNOX FDC LOCK™
OPERATING INSTRUCTIONS
Threads
per Inch
Diameter
2.5" Locking Cap1.5" Locking Cap
Locking
Bolt Head
Pins
Swivel-Guard™
2.5" Locking Cap
with Swivel-Guard™
CAUTION:
Knox FDC Locks are not designed to function as pressure-seal
plugs for wet systems. If the check valve upstream is defective
and leaks water, the water will go through the FDC Lock to show
leakage. The defective check valve must be repaired.
When back ushing your FDC system for clean out, you
must remember to remove all of the Knox FDC Locks so that
contaminated water and debris will not ood the locks and
cause contamination problems. This is especially important if
the sprinkler system has developed microbial infestation.
Knox FDC Locks should be inspected by a qualied inspector
at least once a year to ensure situations have not occurred that
would damage the device.
INSTALLATION NOTES:
• For Swivel-Guard model, line up locks on swivel with cut
outs in swivel guard ring, then spin swivel to thread the
Knox FDC Lock into the connection.
• Knox FDC Lock should easily thread into connection coupling
(loose t). If the Knox FDC Lock thread binds, remove and
check threads for damage or incorrect size.
INSTALLATION
Remove warning tag.
Remove all debris from
connection coupling threads
and from inside the pipe.
Flush system if necessary.
Using the key head on the
Knox FDC Spanner Wrench
or Knox Keywrench, turn
the locking bolt counter-
clockwise until it stops to
ensure it is fully unlocked.
Place the FDC Lock into
coupling and hand turn
clockwise until no threads are
showing. Do not use a spanner
wrench. Hand tighten ONLY.
Tighten locking bolt head
clockwise with Knox FDC
Spanner Wrench or Knox
Keywrench until rm.
Keywrench
FDC Spanner Wrench
Pin Holes
Pin Holes
Key
Key
KNOX FDC LOCK
IDENTIFICATION
Each Knox FDC Lock is etched
with a unique serial number on the
cap face. The cap thread size and
diameter is etched on the back of
the cap. Verify that the connection
coupling thread is the same size
before attempting cap installation.
REMOVAL
1. Inspect locking bolt head and remove any debris, if necessary.
2. Use the key head of the Knox FDC Spanner Wrench or Knox
Keywrench to turn the locking bolt head counter-clockwise
until fully unlocked (Keywrench will stop).
3. Use the pin holes on the Knox FDC Spanner Wrench or Knox
Keywrench to unscrew the Knox FDC Lock from the connection.
4. If the locking bolt is completely loosened and the lock will still
not release, use the spanner end of the Keywrench to engage
the pins on the face of the Knox FDC Lock and unscrew
counter-clockwise as shown below.
1 2 3 4

After set screws have been
secured, insert a ball bearing
slightly larger than the Allen
hole into the screw head
and use punch to hammer
into place. Alternatively,
ll the screw head with a
permanent epoxy material.
This will virtually eliminate
removal attempts.
FDC BRASS ADAPTER RECOMMENDED INSTALLATION PROCEDURE
Theft of items containing materials such as copper and brass are a growing problem for property owners and
firefighters. Knox recommends taking the following steps to ensure the entire FDC assembly is permanently
secured to the pipe thread on the building to reduce risk of theft and vandalism of the housing and pipe.
This procedure involves installing one or more 5/16"-18 Allen set screws and a special permanent adhesive to
secure the FDC Brass adapter to the pipe thread on the building.
NOTE:
To minimize potential of pipe
being stolen, attach a clamp
on the backside of install wall.
Adapter Lip
Pipe Wall
Siamese Brass
Spot Drill Detent
Use Letter F drill bit to drill a
hole entirely through the brass
adapter lip, approximately
1/2" from lip edge. One hole
provides extra security. Three
holes spaced 120° apart will
provide much better security.
Tighten and position FDC
brass adapter on pipe.
Use 1/4" drill bit to spot drill
through the set screw holes
in adapter and into pipe
approximately 1/16" deep.
Do not drill too deep
and pierce pipe.
Clean drill holes of debris
then place a small amount of
remaining Permabond HM162
in hole and on set screws,
then install set screws,
securing rmly with a 5/32"
Allen wrench.
Tap threads in the holes using
a 5/16"-18 thread tap.
Clean pipe threads thoroughly
with solvent and wire brush.
Dry completely. NO grease
or oil can be present on the
pipe threads in order for
adhesive to work properly.
Apply Permabond®HM162 to
threads on both the adapter
and pipe. Coating should
be thin and completely
coat the threads.
OPE-KBSPEC-0024-C
1601 W. DEER VALLEY RD. PHOENIX, AZ 85027 | T. 800-552-5669 | F. 623-687-2290 | [e-mail] | KNOXBOX.COM
©Knox Company. All rights reserved.
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5
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KNOX FDC LOCK™
OPERATING INSTRUCTIONS