Blue Box KAPPA V 2001, Operating, Installation And Maintenance Manual And Maintenance Manual And Maintenance Manual

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PROBLEM OPERATING MODE PROBABLE CAUSE REMEDY
COOLING HEATING
I)
Frost on refrigerant ⊗ Liquid valve partially closed. Open valve fully.
circuit pipes.
⊗
Refrigerant filter clogged. Replace filter cartridge.
L)
Unit functions without ⊗ ⊗ Insufficient refrigerant. See point G.
stopping.
⊗ ⊗
Incorrect working set point Check set point
⊗ ⊗
Excessive thermal capacity. Reduce thermal capacity.
⊗ ⊗ Compressor does not
deliver rated cooling power. Check / replace / overhaul.
⊗ ⊗ Refrigerant filter clogged. Clean / replace.
M)
Unit operating normally
but with ⊗ ⊗ Insufficient refrigerant
charge. See point G.
insufficient power
⊗ ⊗
Humidity in refrigerant
circuit. Replace / dry filter and
recharge circuit.
⊗
4-way inversion valve de-
excited.
Check power supply and valve
windings / replace valve.