15
Installation Procedure
Z-FLEX
VERTICAL INSTALLATION
14.
15.
Use firestop(s) when coaxial flexible vent passes through any combustible floors or
ceilings without insulation.
Use fire stop/insulation shield kit(s) with insulation collar when coaxial flexible vent
passes through any combustible floors or ceilings with insulation.
FIRE STOP - Vertical
a.
Locate center of coaxial flexible vent on floor or ceiling and mark Inside Opening
around center mark - see Table 2.
Table 2. Combustible Ceiling Inside Opening MINIMUM for Fire Stop
b.
Cut opening, frame floor joists or ceiling & sheet rock to accept fire stop. AVOID
cutting joists by offsetting coaxial flexible vent.
c.
Install fire stop on ceiling (bottom side of ceiling or floor joists) and secure with
screws.
d.
Seal around outer flexible pipe/fire stop and fire stop/ceiling/joists with field supplied
fire stop sealant. Discuss sealant and assembly with fire stop professional and local
building and fire officials to ensure fire stop meets with local code requirements.
e.
Fire stops; part numbers: 2DVK(05,06,07,07.5,08,10,11)FS are sold separately.
Secure Fire Stop to
Building Using Field
Supplied Hardware
Fire Stop:
Seal Around All Openings
& Fire Stop with Field
Supplied Fire Stop Sealant
Fig. 9 Fire Stop Installation
WARNING
Risk of Fire!
Review appliance manufacturer's instructions and verify above clearance in Table 2
is appropriate as it may be necessary to increase Combustible Ceiling Inside
Opening MINIMUM for additional clearance.
