Model VIP+
21
Owner's Manual
Expansion Length
•
The expansion length is used to make odd lengths and/or
to serve as an expansion joint.
•
The expansion length may be used when internal
pressure do not exceed 6" water column.
•
The expansion length assembly contains a sliding Upper
Liner Section, a Lower Liner Assembly, a Compression
Band, a Graphite Packing Gasket, a flange and 2 Outside
Casing Half Shields.
Installation :
1.
Install the Lower Liner Assembly into the lower pipe
section. See
Chimney Joint Connection
Section for
joint assembly instructions.
2.
Insert the Upper Liner into the Lower Liner Assembly.
Position and install the upper section and/or support that
will go above the expansion length.
3.
Connect the Upper Liner Section to the upper pipe
section. See
Chimney Joint Connection
Section for
joint assembly instructions.
4.
Position the Graphite Gasket on the Lower Liner’s flange
all around the Upper Liner section and secure with the
Compression Band.
5.
Insert the top Flange and trap the Graphite Gasket
between the two flanges and secure with the supplied
bolts. Use a star tightening pattern of the bolts for better
stability. Re-tighten the compression band bolt if
necessary.
6.
Install Insulation Pad (if necessary) and cover with 2
Outer Casing Half Shields screwed into each other. Outer
Shields may be cut to length if required.
Figure 32
For proper installation, the Expansion Length must have adequate overlap and
sufficient allowance for thermal expansion (see Dimension X in
Figure 33
). The
Minimum overlap between Upper and Lower Liner Sections is 2 inches.
Care must be exercised so that proper penetration is maintained at low
temperatures and no interference occurs at high temperatures. The minimum
distance for thermal expansion allowance (dimension X in Figure 33) will change
depending on distance between two fixed points (supports) and the operating
appliance gas temperatures. Make sure that that dimension X is sufficient to
prevent interferences.
Calculation example :
For a section of chimney of 100 feet with operating gas temperature of 800°F
(and ambient Temp. of 70°F) use the following thermal expansion equation
X = ( Length (feet) / 100 ) x (
∆
T (°F) / 100 )
X = ( 100' / 100 ) x ( ( 800°F-70°F ) / 100 )
X = 7.3 inches
Figure 33
Содержание VIP+ 1 Fiber
Страница 23: ...Model VIP 23 Owner s Manual Figure 36...
Страница 24: ...Model VIP 24 Owner s Manual Figure 37...