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3.5
HOT AIR DUCTING INSTALLATION
Different hot air ducting systems can be installed with the BIS Ultima
™
CF:
- Gravity kit
- Forced air kit
3.5.1 Gravity Kit
Double hot air outlet including: (See Fig.15)
- 2 telescopic lengths 8" I.D.
- 2 90º elbows 8" I.D.
- 2 hot air outlet kits (grill and frames)
- 2 adaptors
See components list page 33.
The only fan that can be used with the gravity kit is the UZY6.
The gravity kit must be used with the clean face kit to allow hot air flow that would normally
come out of the top louver. To do so, follow the steps below:
a)
Install the clean face kit making sure that the insulation strip is installed inside.
b)
The fireplace façade can be covered with non-combustible material (fig. 18).
WARNING: both pipes of the double hot air outlet must be installed. Any other
installation may cause fire and void warranty.
Figure 15
The safety rules for hot air ducting gravity kit installations are the following:
Minimum height
*
68" (1727 mm)
Maximum length
See figure 16
The height of the louver must be measured from the base of the BIS to the middle point of
the louver.
Frame
Grill
