Lennox Compact Pro Installation Operating & Maintenance Manual page 17

CHAP 2.7 INSTRUCTIONS TO INSTALL THE FRESH AIR KIT KR100
The fresh air kit allows the outside air to enter into the room where the air
conditioner is located.
This device guarantees that about 90 m3/h are brought into the room,
resulting in a very good change of air.
Follow carefully these instructions and you will be able to install perfectly the
appliance.
NOTICE
•
The kit has to be mounted to the wall before the air conditioner
•
It have to be installed on an outside wall, preferably not on the walls looking
onto a road or places where there are polluting substances
•
The minimum height from the ground must be at least 6 metres for walls
looking onto high traffic-congested roads and 3 metres in all the other cases.
•
Check that nothing could obstruct the airflow at the device inlet (trees with
leafs, curtains, etc..)
•
To improve the air downflow from the room it is recommended to install a
plenum lock-gate with approx. dimensions 150x150 mm.
INSTALLATION
After having determined the position of the indoor unit fixing bracket, trace the centre of
the hole following the instructions of picture 1.
•
Drill the wall using a suitable drill equipped with core bit with a diameter of at least
132 mm. The hole has to be perfectly horizontal, or at the most having a slight
inclination toward outside.
•
Put the 130-mm. pipe into the hole, after you cut it according to the wall thickness.
ATTENTION: the pipe supplied with the kit is long max. 500 mm; for thicker
walls you have to ask for a longer pipe to the Service Centres.
•
Seal the pipe at both ends using some silicone or stopper
•
Apply the outdoor grid, equipped with grate against insects, by means of at least 2
-
dowels diam. 6 (supplied with the kit) and putting silicone between the wall and rear
part of the grid before fixing it.
•
Put the fan/lock-gate assembly in the hole from inside the room, leaving the power
cable in the lower part (picture 3). Take the inside protection grid away, fix the device
to the wall with at least two dowels diam. 6 and then reassemble the grid.
•
Now install the indoor unit following the user manual's instructions; before closing the
front panel, connect the connection cable to the kit as follows:
o
Calculate the length of the pipe bringing it near the male connector placed on the
electronic board and put the terminals in the special female connector supplied with the
kit.
Connect the connector to the electronic board.
Close the front panel and test the working of the air conditioner.
Let the cable pass through the special hole that is placed on the rear casing
as shown in picture 2 and position the fairlead that is already threaded on
the connecting cable