MicroLinks Tech H-CAM Instruções de Operação descarregar pdf (Página 144)

TM 11574A-OI

3-50

Step Probable Cause Remedy

3 Low refrigerant charge. Add refrigerant.

If fault is not corrected proceed to step 4.

4 Plugged suction strainer. Clean strainer.

If fault is not corrected proceed to step 5.

5 Defective TXV. Replace TXV.

c. Compressor cycles on high pressure control.

Step Probable Cause Remedy

1 High pressure control erratic in action. Check capillary tube for pinches, set control

as required.

If fault is not corrected proceed to step 2.

2 Discharge valve partially closed. Adjust valve.

If fault is not corrected proceed to step 3.

3 Air in system. Recover.

If fault is not corrected proceed to step 4.

4 Condenser scaled (or airflow restricted). Clean condenser.

If fault is not corrected proceed to step 5.

5 Refrigerant overcharge. Recover refrigerant.

d. Insufficient capacity.

Step Probable Cause Remedy

1 Low refrigerant charge. Add refrigerant.

If fault is not corrected proceed to step 2.

2 Control set too high. Reset control.

If fault is not corrected proceed to step 3.

3 Expansion valve plugged. Clean or replace expansion valve.

If fault is not corrected proceed to step 4.

4 Inefficient compressor. Check valves and pistons.

If fault is not corrected proceed to step 5.

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MicroLinks Tech H-CAM Instruções de Operação Página 144