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Problem
11 - OUTLET PRESSURE LOW IN NOMINAL CONDITIONS
Insufficient refrigerant charge.
Presence of air in the water system (in cooling mode):
Insufficient water flow to the evaporator (in cooling mode):
Mechanical problems in the compressor:
Irregular working of fan speed regulator (in cooling mode):
12 - HIGH INTAKE PRESSURE IN NOMINAL CONDITIONS
Excessive thermal load (in cooling mode):
clean the filter body and replace cartridge.
Mechanical problems in the compressor:
13 - LOW INTAKE PRESSURE IN NOMINAL CONDITIONS
Insufficient refrigerant charge:
Heat exchanger damaged (in cooling mode):
clean the filter body and replace cartridge.
The water mesh filter (mounted by installed) is dirty:
Presence of air in the water system (in cooling mode):
Insufficient air to the batteries (in heating mode):
Dirty or blocked batteries (in heating mode):
Insufficient water flow (in cooling mode):
14 - A FAN DOES NOT PART OR ATTACKS AND STAGS
Switch or contactor faulty, break in the auxiliary circuit:
Circuit breaker protection activated:
Condensation control not working:
62
EQPI3X
Recommended action
1 Detect and eliminate any leaks;
2 restore correct load.
bleed the system.
check hydraulic system and adjust as necessary.
overhaul compressor.
check calibration and eventually adjust.
check system sizing, leakage and insulation.
check its operation and replace if necessary.
overhaul compressor.
1 restore correct load.
2 Detect and eliminate any leaks.
1 check.
2 replace
1 check operation.
2 replace if necessary.
clean the filter.
bleed the system.
check fans, check clearances around unit and possible coil obstructions.
verify and eventually clean and / or remove obstructions.
check and adjust as necessary.
check and replace if necessary.
check for short-circuits, replace the motor.
1 check functioning of board and replace if necessary
2 check pressure transducer
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