Essick Air 14 DD Benutzerhandbuch

2

110525

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 also 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.

IMPORTANT:  To cool effi ciently, you must exhaust the stale or used 
air from the building.  Open windows or doors or use exhaust fans 
located away from the cooler and in the direction you wish to cool 
the air.  The air will fl ow in the direction of the exhaust openings.  A 
common guide for the amount of exhaust opening needed is to have 
at least 2 square feet of opening per 1000 CFM.

1. Read instructions carefully.

2. Disconnect all electrical service that will be used for the unit before 

you begin the installation.

3. Electrical hook up should be done by a qualifi ed electrician, so 

that all electrical wiring will conform to your local standards.

4. For a maximum safety precaution, make sure cooler cabinet is 

properly grounded to a suitable ground connection.

5. Cooler must be connected to proper line current, voltage and cycle, 

as stamped on cooler motor and pump motor specifi cation plate.

6. Do no allow pump to tip over and become submerged.

7. Always  DISCONNECT POWER before installing unit or 

performing any maintenance.

• Ductwork.  See the General Specifi cation table for the duct open-

ing dimension for your specifi c cooler.  For down discharge units 
models 10/12DD and 14/21DD, the duct must go inside the opening.  
Size these ducts slightly smaller than the duct opening in the cooler.  
On 75/85DD  and 95DD models the duct may go to the inside or 
outside of the duct fl ange.  The side discharge units have a 1 inch 
fl ange.  Size these ducts larger than the duct opening to fi t over the 
fl ange of these units.

•  Overfl ow assembly.  Remove nut and place nipple through the hole 

in the pan, with the rubber washer between the pan and the head 
of the drain nipple (Fig. 3).  Screw on  
nut and draw up tight against bottom 
of pan.  Insert overfl ow pipe in nipple 
to retain water.  Overfl ow pipe may be 
removed to drain pan when necessary.  
A garden hose may be screwed on the 
drain nipple to drain water away from 
your unit.

• Pump.  The pump must be secured to prevent it from tipping over.  

Secure the pump to the pump mounting bracket.  For the 10/12 and 
14/21 models, remove the mounting screw on the top of the pump 
and using this same screw, secure the pump to the pump mount.  To 
secure the pump for the 75/85 and 95 models, slide the pump into 
the slot of the pump mount and secure with the plastic retainer.

•  Mount motor.  Slide the heads of the provided carriage bolts into 

the slots of the adjustable channels.  Slide these channels sideways 
in the slotted holes to align with the holes in the motor base and to 
align the motor shaft with the blower pulley.  Mount the motor to 
the motor mount using these carriage bolts and the washers and nuts 
provided (see Fig. 1).  Make sure all bolts are securely tightened.

•  Install pulley.  Install the adjustable motor pulley so that it aligns 

with the blower drive pulley (see Fig. 2) and tighten set screw.  See 
page 3 for instructions on adjusting pulley.

NOTE:  Local building code regulations must be observed.

•  Electrical Supply.  Cooler must be supplied with the proper line 

current, voltage and frequency, as stamped on cooler motor and 
pump motor specifi cation plate.  See the wiring diagrams on page 
4 for typical electrical connections.  NOTE:  Connecting improper 
voltage to motor will void motor warranty.

•  Wire sizing.  The conductor sizes are to be determined by motor 

loads and length of run per national and local electrical codes.  

•  Switches or contactors.  Motors require switches or contactors 

of proper current capacity and should be sized and installed by a 
competent electrician.

Fig. 1

Adjustable 
Channels

Blower 

Housing

Motor 
Pulley

Blower 
Pulley

Fig. 2

Rubber Washer

Overfl ow Pipe

Nipple

Bottom Pan

Nut

Fig. 3