gohastings.com EC-160 Manual De Usuario

Green Water………………………..  1.  Usually occurs the first few days of operation; media is being rinsed.  

Drain reservoir and refill with fresh water.  After a couple of 
operations, green should disappear.  The 3 to 6 percent bleed-off, for 
standard units, will maintain your clear water also. 

2.  If unit has been in service for a while, algae can grow on the media.  

It will not cause deterioration or rot, but may clog the passages and 
inhibit the air flow.  A commercial algaecide will control the growth 
when caught in the early stages. 

 

Foaming Occurs…………………..  1.  Some foaming is natural if maintained in the reservoir.  If foaming of 

the medial occurs after a couple of days of operation, a defoamer 
should be added.  The exact amount will depend on the severity.  
After one application, you will be able to judge how much additional 
defoamer to use (see instructions on bottle). 

 

Scaling Occurs…………………….  1.  Be sure you have a 3 to 6 percent bleed-off rate (See “Bleed Off 

Flow Rates.”) for unit size.  If the frost-like scale does appear, 
increase water flow by adjusting pump discharge gate valve until it 
disappears. The exact amount will depend upon the pH and 
hardness of the water and the intensity of evaporation. Clean and 
flush distribution header on a regular basis. 

 

1.  Reservoir float valve (FV) improperly adjusted (See “Installation 

Instructions,” note 4.) 

2.  Float valve bad, not shutting off.  Replace. 

3.  Check overflow and drain valves for blockage.  On models with timed 

drain valve, check time clock setting or solenoid valve (DV).  Replace 
if bad. 

4.  After initial start-up, look for foaming of the media.  If the blower is 

pulling foam bubbles off the media into transition, a static pressure or 
CFM problem is eminent.  (Contact your service or unit 
representative.) 

 

Reservoir Dry………………………  1.  Check the manual shut-off valve.  Is it open? 
 

2.  Is the float valve opening?  If not, then readjust float level or replace 

valve. 

3.  Units with conservation water solenoid should be checked.  Replace 

if bad. 
 

1.  Water pump is running without the blower running. 

Water Out the Backside of 
Evaporative Cooler………………..  2.

 

Damaged media.  Replace. 

3.  If these problems, contact your service or unit representatives: 

A.  Lack of CFM. 
B.  Improper static pressure. 

 

P.O. Box 669  ·   Hastings, Nebraska 68902-0669 
Phone (402) 463-9821   ·   Fax (402) 462-8006 

www.hastingshvac.com

  

E-mail:  

sales@hastingshvac.com