Справочник Пользователя для SterlingTek A0551797

 

Allow time to cool and reset. 
Check for high/low voltage. 
Voltage must be within plus 
or minus ten percent (±10%) 
of nameplate rating.  
Check for poor compressor 
electrical connections. 

Compressor internal overload 
open. 

Check compressor rotation 
on scroll compressors. 

Compressor contactor 
holding coil open. 

Repair or replace. 

Defective fan motor. 

Repair or replace. 

Fan motor out on overload. 

Reset and test. 

Defective freezestat. 

Replace. 

Refrigerant low. 

Check the refrigerant charge. 

Defective fan cycling control. 

Replace. 

Low refrigerant pressure 
switch contact open. 

Sight glass should be clear 
while comperssor runs. Call 
for service if bubbling or 
foaming. 

Defective pump motor 
interlock to compressor 
control circuit. 

Repair or replace. 

Pump runs, 

compressor does not 
(cont’d). 

Broken wire in the 
compressor control circuit. 

Locate and repair. 

Freezestat control setting is 
too high. 

Lower set point to 10°F (6ºC) 
below the leaving water 
temperature you want with at 
least 15 degrees differential.  

Pump runs, compressor 

cycles at short intervals. 

Refrigerant is too low. 

Check refrigeration charge; 
check refrigerant sight glass 
for bubbles or a level in the 
glass. 

Improper water/glycol 
mixture. 

Be sure the antifreeze 
mixture protection is right for 
the process. 

Defective freezestat control. 

Replace. 

Leaving water temperature is 

not at set point. 

Refrigerant charge is low. 

Call service to find and repair 
the leak. Add refrigerant. 

Pump pressure is too high.  

Restricted water flow. 

Check for partially closed 
valves etc. Be sure all lines 
are properly sized.