25
SLS/SLH 10/06
Faulty Probable
cause
Remedy
AL07
Sys 1
High pressure
COOL
Fan stop
Low ventilation
Fan thermal contact open
High gas charge
Coil dirty
Coil obstruct
Faulty high pressure transducer
HEAT
Low water flow
Wrong pump
Dirty filter
Dirty exchanger
High circuit pressure drop
To check the fan
To check the fan speed
To reset the contact
To check the gas charge
To clean the coil
To check the installation position
To replace the transducer
To check the pump
To check the pump size
To clean the filter
To clean the exchanger
To check the plant pressure drop
AL08
Sys 2
High pressure
COOL
Fan stop
Low ventilation
Fan thermal contact open
High gas charge
Coil dirty
Coil obstruct
Faulty high pressure transducer
HEAT
Low water flow
Wrong pump
Dirty filter
Dirty exchanger
High circuit pressure drop
To check the fan
To check the fan speed
To reset the contact
To check the gas charge
To clean the coil
To check the installation position
To replace the transducer
To check the pump
To check the pump size
To clean the filter
To clean the exchanger
To check the plant pressure drop
AL09
Thermal switch
compressor 1
AL10
Thermal switch
compressor 2
AL11
Recovery
antifreezing
AL12
Thermal switch
fans group 1
SYS 1
Motor compressor faulty
Compressor thermal contact open
Wrong charge
Wrong electrical cable connection & phase
missing
Motor compressor faulty
Compressor thermal contact open
Wrong charge
Wrong electrical cable connection & phase
missing
Low water flow
Wrong pump
Water filter dirty
Dirty exchanger
High circuit pressure drop
Fan stop
Fan thermal contact open
Fan blocked
Wrong electrical cable connection &
phase missing
To check the compressor motor
To reset the thermal contact
To check the gas charge
To check the electrical connection,
to tighten the terminal block screws
To check the compressor motor
To reset the thermal contact
To check the gas charge
To check the electrical connection,
to tighten the terminal block screws
To check the pump
To check the pump size
To clean the filter
To clean the exchanger
To check the plant pressure drop
To check the motor
To reset the thermal contact and to check
the scale
To release the fan
To check the electrical connection,
to tighten the terminal block screws
Summary of Contents for SLS-SLH
Page 1: ...Chiller unit SLS SLH...
