4
2
6
3
5
7
3
2
3
B A
7
3
B
A
2
2.- INSTALLATION
2..- INSTALLATION GUID����������ELINES
2.2.- OPTIONAL OPERATIONS PRIOR TO UNIT INSTALLATION:
The unit must be transported in a HORIZONTAL POSITION on its metal legs. Any other position may cause serious
damage to the machine. When the unit is received, it should be checked to ensure that there are no knocks or
other damage, following the instructions on the packaging. If there is damage, the unit may be rejected by notifying
the LENNOX D����������istribution D����������epartment and explaining on the transport agent’s delivery notice why the machine is
unacceptable. Any complaint or claim made subsequently to the LENNOX D����������istribution D����������epartment for this type of
anomaly cannot be considered under the Guarantee.
Sufficient space must be allowed to facilitate placement of the unit.
ALL INSTALLATION, SERVICE and MAINTENANCE operations must be carried out
by QUALIFIED PERSONNEL.
When positioning the unit, be sure that the Rating Plate will always be visible since this data will be nece-
sary to assure proper maintenance.
The units are designed to be installed with ducts, calculated by qualified technical staff. The joints to be used between
ducts and the openings to the unit should be Elastic Joints. Avoid the use of BYPASS joints between the extraction air
and input air in both the outdoor and indoor sections. The structure where the unit is placed must be able to support
the weight of the unit during operation.
�ENTILATION FOR CIC-CIH UNITS IS PRO�ID����������ED���������� BY:
.- Centrifugal fan (single or double).
2.- D����������rive motor.
3.- Pulley fixed to the fan.
4.- Adjustable pulley on the fan motor.
5.- Pulley belt.
6.- Base of the motor with displacement system for tensioning belts.
7.- Tensioning screw.
REGULATING AIRFLOW AT THE FANS
The unit fan has an adjustable pulley on the drive motor so that, when the fan is switched off, the pulley diameter can
be adjusted to modify the unit’s air flow, as required.
. Fixed part. 2. Moving part. 3. Fixing screw.
CLOSE PULLEY:
To increase the air flow from the fan, turn
the moving part in direction “B”. (Clockwise).
OPEN PULLEY:
To reduce airflow, turn in direction “A”.
(Anticlockwise).
AD����������JUSTABLE PULLEYS
SIMPLE PULLEY
D����������OBLE PULLEY
TENSION OF BELTS
The belts can be easily tensioned by means of the tensioning screw
incorporated into the base of the motor in the transmission unit,
which also makes it easy to carry out servicing properly.
When the tensioning screw is turned, the fan motor is moved
sideways in order to tension the pulley.
D����������ISPLACEMENT
If there are problems of height, the transport
supports can be removed by unscrewing them from
the base. (Units 020S to 085D����������).
