ZURN Z886 Perma-Trench User manual

LINEAR DRAINAGE
Z886 Perma-Trench
6" Perma-Trench Installation Instructions

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Z886 PERMA-TRENCH
INSTALLATION INSTRUCTIONS
Z886 Accessories
6" [152MM] WIDE TRENCH DRAIN SYSTEM
Below are the components of the Z886 trench drain typical
to an installation. Check your order to verify you have all
components particular to your job before beginning your
installation. Contact customer service at 855-ONE-ZURN
should additional material be required.
P887-INLET-6
Inlet Adapter (IA)
For Catch Basin Applications
Shipping and
Installation Bar
GL
Grate Lockdown
Hardware
P6-DGC
6" [152] Double Iron
Class C Grate
P886-E4-NS
4" [102]No-Hub
End Outlet
P886-E1-NS
Closed End Cap
P886-U4-NS
4" [102] No-Hub
Bottom Outlet
Grate Lockdown Bar
(840 Bag)
P886-JC-NS
Joint Connector
For Use When Creating High or Low Points

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Z886 PERMA-TRENCH
INSTALLATION INSTRUCTIONS
Z886 Tools Required
Tape Measure Phillips Head Screwdriver Hammer Utility Knife Marker
Cordless Drill Reciprocating Saw Ear Protection Safety Glasses
Gloves Hole Saw Caulk Gun

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Z886 PERMA-TRENCH
INSTALLATION INSTRUCTIONS
Z886 Encasement
A 4" [102] new concrete encasement is minimum. Guidelines
for reinforcing an encasement would be to use the same
thick-ness and reinforcing used in the surrounding concrete
slab. Concrete must be vibrated to remove air voids in
encasement, especially under the frame rails.
Specifying engineer is responsible for concrete encasement
and reinforcing based upon application and local codes.
Excavation
Trench excavation must include the minimum of 4" [102] on
both sides and underneath or the slab thickness surrounding
the trench. Soft and/or shifting soil substrates may cause
cracking of the concrete and consequent movement of
the trench. It is critical that the concrete be poured on an
adequate foundation. Verify depth of trench excavation to
allow for the same thickness of concrete under and beside
the trench as the surrounding slab thickness.
4 [102]
MIN.
4 [102]
MIN.
6-1/4 [159]
1-1/4 [32]
4 [102]
INVERT

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Z886 PERMA-TRENCH
INSTALLATION INSTRUCTIONS
Z886 Layout
Upon completion of the excavation, the channel should
be placed in numeric order alongside the excavation
according to the job layout. Each trench section has a
trench identification number and flow direction indicating
its sequence within the system. It is best to work from the
deep or outlet end to the shallow. Grates are not installed
at this time.
Four (4) shipping/installation bars per channel;
recommended spacing is approximately 3"-6" [76-152]
from end of rail for end pieces and 26"-29" [660-737] from
end of rail for center pieces. All shipping/installation bar
locations are approximate.
Female End
Must be installed on
channels without HD
or HDS frames

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Z886 PERMA-TRENCH
INSTALLATION INSTRUCTIONS
Z886 End Outlet
Connection Options
1 When installing end cap or end outlet, remove
by cutting with saw the 1-1/4" [32] male overlap
connection as shown.
2 Once overlap is removed, trim end cap/end outlet
to desired height.
3 Attach end outlet or end cap to the channel with
hardware provided.
ATTACHING END CAPS AND OUTLETS
Make sure all overlaps on trench are trimmed o prior to
installing the end caps to ensure the finish installation has
a frame above the trench channel. This ensures each trench
will have a grate on it.
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Z886 PERMA-TRENCH
INSTALLATION INSTRUCTIONS
Z886 Bottom Outlet Connection Option
1 Score both sides of the rib with the utility knife. 2 Tap rib with a hammer to remove rib when necessary.
4 Cut out hole with hole saw that matches inside diameter
of outlet.
3 Attach bottom outlet to channel with hardware provided.
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Z886 PERMA-TRENCH
INSTALLATION INSTRUCTIONS
Z886
Channel Connection
Z886 Neutral Cut
Channel Connection
1 When job layout calls for male-to-male channel
connection, cut male ends to be flush with end of integral
frame on the ends that will be connected.
1 Cut a 1-1/4" [32] by 13/16" [21] section out of the end of
the channel. This enables the end to act as a male end.
2 Screw the ribs together with the hardware provided.
This method can also be used if you have a female-to-
female connection.
2 After removing the cutouts, attach channel through
the female connection with hardware provided.
1.25" [32]
.813" [21]
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1.25" [32]
.813" [21]
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Z886 PERMA-TRENCH
INSTALLATION INSTRUCTIONS
1 Cut joint connector to height. It should fit snug on the
radius portion of the trench to just below the upper lip of
the channel.
1 When job layout calls for female-to-female channel
connection with HD frame, cut female ends to be flush
with end of the HD frame on the ends that will be
connected.
2 Attach to the channels with the hardware provided. 2 Screw the joint connector to the channel with the
hardware provided. This method can also be used if you
have a male-to-male connection. Ends are not cut o, but
ribs will need to be trimmed (See page 7).
Z886 Connecting
the Trench
Z886-HD
Channel Connection
WITH JOINT CONNECTOR
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Z886 PERMA-TRENCH
INSTALLATION INSTRUCTIONS
Z886 Connecting
the Trench
Channels should be installed from deep or outlet end
to shallow end. This allows the next shallower channel’s
male connection to easily set onto the previous channel
lip. Stake in place with No. 4 rebar (by others) and attach
with the provided connection hardware.
SEALING
• Channel connections are designed to be a good seal,
meaning concrete aggregate will not intrude into
the trench.
• Silicone sealant may be used as a gasket between the
channels for a better seal.
• Channel connections may be welded with an HDPE
welding gun for the best seal.
CONNECTIONS
• The maximum gap between frames is 1/4" [6].
Rebar length dictated by trench depth and substrate for positive
anchoring while setting to resist floating.
1 When using sidewalls with a joint connector, be sure to
keep the trimmed pieces to attach to the sidewall portion
of the trench using the hardware provided.
2 Attach to the channels with the hardware provided.
Z886 Connecting the
Trench with Sidewalls
Non-HD Frame
HD Frame