Model 1011
Installation and Operation Manual
6
Par
t No
. 51
2083 Dra
wing No
. 1
29-0205a 03/09
Getting Started
Typical Single Protected Enclosure Connections
HELPFUL HINTS
If flammable gases are lighter than air, the inlet connection
to each enclosure must enter near a bottom corner. The
outlet connection, for an optional enclosure protection
vent or piping to an adjacent protected enclosure, must
exit near an extreme opposite top corner.
If flammable gases are heavier than air, inlet and outlet
connections must be reversed.
In all cases, the most prevalent gas must determine the
location of inlet and outlet connections.
Determining Enclosure Inlet & Outlet Connection Locations
HELPFUL HINTS
To ensure adequate protective gas flow to the protected enclosure(s), all piping and tubing must be fully reamed.
Precautions must be taken to prevent crimping and other damage to protective gas piping and tubing.
When protecting multiple enclosures with a single enclosure protection system, the enclosures must be
connected in series from the smallest to the largest to ensure adequate protective gas flow.
PROTECTED
ENCLOSURE
C
B
ENCLOSURE PROTECTION VENT
(Optional)
E
SUPPLY
REFERENCE
1/2"
PROTECTIVE
GAS SUPPLY
HEADER
ENCLOSURE
PROTECTION
SYSTEM
Maximum tubing / pipe pength and
maximum number of bends / elbows
1/4" O.D. tubing
fully reamed
20 feet
10 bends
1/4" O.D. tubing
fully reamed
Description
*Tubing or pipe diameter
Enclosure
supply
System
supply tubing
Enclosure
reference
1/4" O.D. tubing
fully reamed
5 feet
5 bends
20 feet
10 bends
Multi - enclosure
connections
1/2" I.D. pipe
fully reamed
10 feet
5 elbows
Optional remote
venting
1/2" I.D. pipe
fully reamed
30 feet
5 elbows
A
B
E
D
C
ENCLOSURE
PROTECTION
SYSTEM
PROTECTED
ENCLOSURE
PROTECTED
ENCLOSURE
D
SUPPLY
REFERENCE
B
TYPICAL MULTIPLE PROTECTED ENCLOSURE CONNECTIONS
1/2"
PROTECTIVE
GAS SUPPLY
HEADER
A
A
D
C
PROTECTED
ENCLOSURE
*NOTE: Tube and pipe sizes are not equal in inside diameters.
DO NOT substitute tube for pipe with same trade size.
INLET
INLET
Connections for heavier than
air gases and vapors
OUTLET
OUTLET
Connections for lighter than
air gases and vapors
