Curbing And Flashing - Lennox FCM 85 Installation, Operating And Maintenance

INSTALLATION ON A ROOFMOUNTING FRAME
When the frame is correctly positioned, it is essential to secure the assembly with a disconnected stitched welded seam (20 to
30mm every 200mm

CURBING AND FLASHING

Fig. 7
Before installing the equipment, make sure that seals are not damaged and check that the unit is secured to the mounting
frame. Once in position, the bottom of the equipment must be horizontal.
The installer must comply with local authority standards and specifications.
RECOMMENDATIONS FOR DUCTS CONNECTIONS
Some rules must be complied with for the connections between ducts and unit done on site.
FLEXYII-IOM-0409-E
) along the outside or by using an alternative method
Outside of frame must be insulated with rigid type insulation;
We recommend a minimum of 20 mm thick insulation (2-figure 7).
Check that the insulation is continuous, counter flash and seal around the
frame
as shown in (1-figure 7).
CAUTION: To be effective, the upstream must end below the drop edge (3 - figure
7).
Where pipes and electrical conduits extend through the roof, flashing must be
conformed to local codes of practice.
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