Concentric Flue System; Horizontal Concentric Flue Fitting Details Lbf81/121 - Lochinvar LBF81 Installation, Commissioning & Maintenance Instructions

9.3

CONCENTRIC FLUE SYSTEM

9.3.1

HORIZONTAL CONCENTRIC FLUE FITTING DETAILS LBF81/121

FIGURE 8.2
Kit Part Number
ASKITSO 1000mm Horizontal Concentric Flue Kit
Kit Components
1 38mm Clamp With Gasket (Not Visible)
2 60mm Clamp With Gasket
3
4
5
TABLE 8.2
1. Determine the location of the flue terminal, taking into account minimum distances as detailed in Figure
8.1, Table 8.1 and the relevant British Standards.
2. Taking care to protect the appliance from debris and dust, drill a hole in the desired location. The
diameter of the hole should be no more than 10mm greater than the diameter of the terminal.
3. Determine the required length of the flue pipe (item 3 in Figure 8.2) and cut as necessary.
NOTE: When determining the required length, the extension pipe must protrude by a minimum of 150mm.
NOTE: Once cut; remove all burrs and sharp edges.
4. Insert the flue pipe into the drilled hole. The terminal section should be installed with a slight fall to
outside (Max. 10mm per metre) to prevent the ingress of water.
5. Position the internal and external wall covers (item 4 in Figure 8.2) onto the flue pipe.
6. If any additional flue components are required to connect onto the horizontal terminal these should be
measured, cut accordingly and fitted using the 38mm and 60mm clamps and gaskets included with the
additional components.
7. If no additional components are required fit the flue pipe to the flue hood, position the 38mm clamp and
gasket and the 60mm clamp and gasket on to the flue pipe.
8. Secure the flue pipe by first sliding the 38mm clamp and gasket over the exhaust connection. Now slide
the 60mm gasket and clamp into position and tighten the retaining screws.
9. With all components in position, tighten any support brackets used.
HORIZONTAL CONCENTRIC FLUE KIT FOR LBF81/121
Description
38/60 Flue Length
Wall Covers
Terminal
HORIZONTAL CONCENTRIC FLUE KIT AND COMPONENTS
Additional Components
ASPC100
ASDC609
ASDC604
Description
38/60 Extension (Adjustable 1000mm)
38/60 90° Concentric Bend
38/60 45° Concentric Bend
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