Daikin RZQG71L9V1, Руководство по обслуживанию

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Troubleshooting by Remote Controller ESIE15-13C
188 Service Diagnosis
Evaluation of Abnormal High Pressure
Abnormally high pressure level is mostly caused by the condenser side. The following contents are provided
by service engineer based on their field checks. Further, the number is listed in the order of degree of
influence.
In Cooling Operation
In Heating Operation
CHECK 2
Check items (Possible causes) Judgement
Does the outdoor unit fan run normally? Visual inspection
Is the outdoor unit heat exchanger clogged? Visual inspection
Is there clogging before or after the EV (capillary)? Check if there is a temperature difference before and
after EV (capillary).
Check if the main valve unit of EV operates
(by noise, vibration).
Is the check valve clogged? Check if there is a temperature difference before and
after check valve.
 If YES, the check valve is caught.
Is the HPS normal? * Check continuity by using a tester.
Is the outdoor unit installed under such conditions that
short circuit easily occurs?
Visual inspection
Is the piping length 5 meters or less? Visual inspection
Does air enter the refrigerant system? Conduct refrigerant collection and vacuum drying, and
then add proper amount refrigerant.
Is the refrigerant overcharged? Conduct refrigerant collection and vacuum drying, and
then add proper amount refrigerant.
Check items (Possible causes) Judgement
Does the indoor unit fan run normally? Visual inspection
Is the indoor unit heat exchanger clogged? Visual inspection
Is the indoor unit installed under such conditions that
short circuit easily occurs?
Visual inspection
Is there clogging before or after the EV (capillary)? Check if there is a temperature difference before and
after EV (capillary).
Check if the main valve unit of EV operates
(by noise, vibration).
Is the check valve clogged? Check if there is a temperature difference before and
after check valve.
 If YES, the check valve is caught.
Is the HPS normal? Check continuity using a tester.
Is the piping length 5 meters or less? Visual inspection
Does air enter the refrigerant system? Conduct refrigerant collection and vacuum drying, and
then add proper amount refrigerant.
Is the refrigerant overcharged? Conduct refrigerant collection and vacuum drying, and
then add proper amount refrigerant.