Blue Box KAPPA V SR, Installation, Operating And Maintenance Manual

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Blue Box 59
SYMPTOM OPERATION PROBABLE CAUSE POSSIBLE CORRECTIVE ACTION
COOLING HEATING
R)
One or more
compressors switched
off. Display On with ⊗ ⊗ Excess refrigerant charge Check refrigerant charge and call
service organisation
alarm “High Pressure
Compressor”
⊗ ⊗ Refrigerant circuit contains
non-condensable gas Empty circuit, apply vacuum, and
recharge
⊗ ⊗ High pressure switch
incorrectly set or faulty Check pressure switch setting
⊗ Condenser coil or coil filters
(if present) clogged Clean coil and filters (if present)
with compressed air
S)
One or more
compressors switched ⊗ ⊗ Insufficient refrigerant
charge due to leak in circuit Call service organisation
off. Display On with
alarm “Low Pressure
Compressors”
⊗ ⊗
Thermostatic valve faulty Call service organisation
⊗ ⊗ Solenoid valve of liquid
refrigerant line faulty (if
present)
Call service organisation
⊗ Dehydrating filter clogged Call service organisation
⊗ Evaporator coil or coil filters
(if present) clogged Clean coil and filters (if supplied)
with compressed air
⊗ ⊗ Liquid refrigerant valve not
completely open
Check and open fully
⊗ ⊗ Pressostat faulty Check; replace if necessary
T)
One or more
compressors switched
off. Display On with
alarm “Compressor
Thermal Protections”
⊗ ⊗ Problems at the compressor Call service organisation