Acson ACC-D Series User Manual

56
Diagnostic Guidelines
By means of pressure readings:
High
side
Low side
•
•
• Overcharged with refrigerant.
• Non-condensable gases in refrigerant circuit
(e.g. air)
• Obstructed air-intake / discharge.
• Hot air short circuiting in outdoor unit.
High
side
Low side
•
•
• Poor compression / no compression
(compressor defective)
• Reversing valve leaking.
High
side
Low side
•
• • Undercharged with refrigerant.
• Refrigerant leakage.
• Air filter clogged / dirty (indoor unit).
• Indoor fan locked / seized.
• Defective defrost control, outdoor coil freeze up
(heating).
• Outdoor fan locked / seized (heating).
High
side
Low side
•
• • Outdoor fan blocked (cooling).
• Outdoor coil dirty (cooling).
• Indoor fan locked / seized (heating).
• Indoor air filter clogged / dirty (heating).
• Non-condensable gases in refrigerant circuit
(e.g. air)
High
side
Low side
•
•
• Air intake temperature of indoor unit too high.
Too Low Too High
A
Little Low
A
Little Hig
h
Normal
Probable cause
Data
Circuit
Pressure

Acson ACC-D Series Specifications

General

Brand	Acson
Model	ACC-D Series
Category	Inverter
Language	English