Daikin C-Series Especificações descarregar pdf (Página 105)

102

Troubleshooting

ii) Diagnosis of Refrigerant Circuit / Application

There might be some causes where the unit starts running but does not perform satisfactorily, i.e. insufﬁ cient

cooling. Judgement could be made by measuring temperature difference of indoor unit’s intake and discharge

air as well as running current.

: Faulty

: Check

: Cause

............... : Remedy

Insufficient cooling

Clean the coil

Clean the filter

Change or repair the motor

Remove the obstruction

Indoor / outdoor coil dirty (clogged)

Indoor air filter dirty

Restricted

Fan motor malfunction

Obstruction at air inlet / outlet of

indoor / outdoor unit

Air

circulation

Remove or reduce heat source

Reduce number of people in the room

Close the windows / doors

Excessive heat source.

e.g. electric kettle

Room overcrowded with people

Windows / doors wide open

High cooling

load

Add refrigerant. Repair leakage if detected

Repair clogging or replace faulty components

Refrigerant short charge or

refrigerant leakage

Restriction e.g. at strainer, capillary,

filter dryer, etc.

Replace compressor

Less or no compression

(Low running current)

Refrigerant

circuit

Compressor

Satisfactory operation with temperature difference of air intake & discharge of indoor unit 8°C to 13°C. *

( * value is for reference only )

Insufficient heating