Models
7300 DD
7300 SD
7401 DD
7401 SD
7500 DD
7500 SD
Read all of this manual carefully before
installing the unit.
Read and Save These Instructions
Vea el Español en el interior
Safety Rules
1. Read instructions carefully.
2. Electrical hook up should be done by a qualified electrician so
that all electrical wiring will conform to your local standards.
3. Always turn OFF POWER and UNPLUG motor and pump inside
the cooler before installing or performing any maintenance.
4. Your cooler will run on either 120V or 240V A.C., single phase,
60 Hz (cycle) current.
5. Motor and pump have a grounded, molded plug and an automatic
thermal overload switch which will shut motor off when it over-
heats. The motor will restart automatically when it cools down.
6. Pump receptacle is for grounded evaporative cooler pump only.
Do not plug anything else into receptacle.
WARNING
To reduce the risk of fire or electric shock, do not
:
use this fan with any "solid-state fan speed control device."
Evaporative Cooling
Evaporative cooling is nature's way of cooling. When air is moved
over a wet surface, water is evaporated and heat is absorbed. When
stepping out of a swimming pool with the wind blowing, evaporative
cooling makes you feel cool, even though the air may be warm.
The human body itself is cooled primarily by the evaporation of
perspiration.
This unit works on the same principle. Air is drawn across wet
filter pads where the air is cooled by evaporation and then circulated
throughout the building. It is this combination of cooled air and the
movement of air over the skin which makes it feel cool.
Evaporative Cooler Manual
Circle the model of your cooler and
record the serial number below.
Encierre con un circulo el modelo de su
enfriador y escribe el número de serie abajo.
Serial #
Número De Serie
Lea con cuidad todo este manual antes de
instalar la unidad.
Unlike refrigeration systems which recirculate the air, an evaporative
cooler continually brings in fresh air while exhausting old air. You
are completely replacing the air every 2 to 4 minutes by opening
windows or doors or a combination of both. The air is always fresh,
not stale, laden with smoke and odors as happens with refrigerated
air conditioning.
Operation
For the best cooling performance, if the pads are dry, pre-wet the pads
by running the pump for a few minutes before starting the blower.
These coolers may be used without water for ventilation purposes.
When outside air is cool (for example, at night) or when humidity is
high, the water pump can be turned off.
A cooler also can be installed with a thermostat and attic exhaust
dampers to provide completely automatic operation.
8-19