Idiomas disponibles
Idiomas disponibles
8 - LOW OIL LEVEL
Refrigerant fluid leakage
Unit running under irregular conditions compared to the functioning limits
9 - THE CRANKCASE HEATER DOES NOT WORK
No electrical supply
The crankcase heater is off
10 - OUTLET PRESSURE HIGH IN NOMINAL CONDITIONS
Not enough cooling air in coils (in cooling mode)
Not enough water circulation on the plate heat exchanger (in heating
mode)
Presence of air in the water system
Excessive amount of refrigerant
Dirty or blocked batteries (in cooling mode)
11 - OUTLET PRESSURE LOW IN NOMINAL CONDITIONS
Insufficient amount of refrigerant fluid
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 - INTAKE PRESSURE HIGH IN NOMINAL CONDITIONS
Excessive thermal load (in cooling mode)
Irregular operation of the expansion valve
Mechanical problems in the compressor
IOM_EQRU-SS_EQRHU-SS_2160a4350_208676_230601_ES-EN-FR-DE-IT
103
1.
check, identify and eliminate any leaks
2.
top-up to the correct amount of refrigerant and oil
check unit sizing
check connections
check and replace if necessary
check fan operation, check technical spaces and possible coil obstructions
check and adjust as necessary
bleed the system
drain the excess
check and clean and/or remove any obstructions
1.
Detect and eliminate any leaks
2.
top-up to the correct amount
bleed the system
check hydraulic system and adjust as necessary
overhaul compressor
check calibration and adjust if necessary
check system sizing, leakage and insulation
check operation, clean nozzle, adjust overheating, replace if necessary
overhaul compressor
EQRU-EQRUSS
EQRHU-EQRHUSS
