Model 1011
Installation and Operation Manual
11
Par
t No
. 51
2083 Dra
wing No
. 1
29-0205a 03/09
Tubing Installation
Tubing LH, RH, TM, BM & FM Configurations
System supply connections
1. Select or install a protective gas supply header tap, fitted
with the proper tube size fitting and located within twenty
(20) feet of the enclosure protection system.
2. If a service valve is placed between the protective gas
supply header and the enclosure protection system, it must
be installed in close proximity of the protected enclosure
and be labeled in accordance with NFPA 496.
3. Select the appropriate fittings required to connect the
protective gas supply to the protection system regulator
as determined on page 10, “Pneumatic Connection
Requirements.”
4. Determine appropriate tubing route from the protective gas
supply header to the protection system regulator.
5. Bend tubing using industrial grade benders, check tubing
fit to ensure proper seating between the tubing and fittings.
Fully ream all tubing ends.
6. Install tubing and tighten all fittings to fitting manufacturer’s
specifications. Secure tubing to appropriate structural
supports as required.
Enclosure supply & reference connections
1. Choose location for the enclosure supply connection(s)
based on the requirements on page 6, “Getting Started”.
2. Place the enclosure reference connection fitting directly
behind the enclosure protection system whenever possible.
For systems protecting multiple enclosures in series, the
enclosure reference connection fitting must be placed
on the last enclosure in the series. See page 6, “Getting
Started.”
3. Drill and deburr enclosure supply and reference fitting holes
on the protected enclosure. Mount the fittings.
4. Determine appropriate route for the enclosure supply and
reference tubing.
5. Bend tubing using industrial grade benders, check tubing
fit to ensure proper seating between the tubing and fittings.
Fully ream all tubing ends.
6. Install tubing and tighten all fittings to fitting manufacturer’s
specifications. Secure tubing to appropriate structural
supports as required.
Tubing PM Configurations
Enclosure bulkhead fittings
1. Select the fittings required to install the system supply,
system supply bulkhead fitting and atmospheric reference
bulkhead fitting. See page 11, “Pneumatic Tubing
Requirements.”
2. Choose location for the system supply bulkhead fitting. This
fitting allows the protective gas supply to pass through the
wall of a protected enclosure to the protection system’s
regulator supply inlet connection.
3. Choose location for the atmospheric reference bulkhead
fitting. This fitting allows the enclosure pressure gauge to
reference atmospheric pressure.
4. Drill and deburr system supply and reference bulkhead
fitting holes in the protected enclosure. Mount the fittings.
System supply & reference connections
1. Select or install a protective gas supply header tap, fitted
with the proper tube size fitting and located within twenty
(20) feet of the enclosure protection system.
2. If a service valve is placed between the protective gas
supply header and the protection system, it must be in
close proximity of the protected enclosure and labeled in
accordance with NFPA 496.
3. Determine appropriate tubing route from the protective gas
supply header to the system supply bulkhead fitting.
4. Determine appropriate tubing route from the system supply
bulkhead fitting to the protection system regulator.
5. Determine appropriate tubing route from the atmospheric
reference bulkhead fitting to the enclosure pressure gauge’s
reference inlet connection.
6. Bend tubing using industrial grade benders, check tubing
fit to ensure proper seating between the tubing and fittings.
Fully ream all tubing ends.
7. Install tubing and tighten all fittings to fitting manufacturer’s
specifications. Secure tubing as required.
HELPFUL HINTS
All work must be performed by technicians qualified in
pneumatic tubing and electrical conduit installation.
Fuchs recommends the use of .035" wall
thickness, welded or seamless stainless steel tubing.
If flexible tubing is used, it must be installed in a manner
that protects it from damage and corrosion.
