Hot Air Ducting Installation; Gravity Kit - Lennox P1BRENTW-A Installation Instructions Manual

3.5

HOT AIR DUCTING INSTALLATION

Different hot air ducting systems can be installed with the BRENTWOOD:

- Gravity kit

- Forced air kit
-
3.5.1 Gravity Kit
Two kits are available:
1. Single hot air outlet including: (see Fig.13)
- 2 6" lengths 8" I.D.
- 1 hot air outlet kit (box, louver and frame)
- 2 adaptors
NOTE :
using 2 – 30 deg. elbows back to back on the fireplace.
See components list page 30.
The only fan that can be used with the gravity kit is the UZY3.
The gravity kit allows you to block the upper louver of the fireplace. To do so, follow the
steps below:
a) Remove the upper louver from the fireplace.
b) Install the black panel (BWCF) making sure that the insulation strip is installed inside.
c) The fireplace façade can be covered with non-combustible material (fig. 17).
The safety rules for hot air ducting gravity kit installations are the following:
Minimum height
Maximum length
* The height of the louver must be measured from the base of the BRENTWOOD to the
middle point of the louver.
To install the single hot air outlet, the chimney must be offset towards the back
Figure 13
*
2. Double hot air outlet including: (See Fig.14)
- 2 telescopic lengths 8" I.D.
- 2 90º elbows 8" I.D.
- 2 hot air outlet kits (grill and frames)
- 2 adaptors
68" (1727 mm)
See figures 15 & 16
16
Figure 14