Daikin VRV X RXQ6-48ANR Series, Руководство по обслуживанию

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SiME341909EA Troubleshooting by Error Code
Part 6 Service Diagnosis 207
Troubleshooting
Connect the Ser v ice Checker.
Mo u nt a press u re ga u ge on the
high press u re ser v ice port.
Reset the operation, and then
restart the operation.
Stop the rele v ant indoor u nits w hile
the system is in cooling operation,
and then check for the li
qu id pipe
temperat u re of these indoor u nits
after the system is sta b ilized.
The li qu id pipe
temperat u re is lo w
(e qu i v alent to the e v aporating
temperat u re).
Clean the air filters
of the indoor
u nits.
N O
YES
N O
Replace the indoor
electronic expansion
v al v e.
Replace the rele v ant
thermistor.
YES
YES
Caution
Be s u re to t u rn off the po w er s w itch b efore connecting or disconnecting
connectors, or parts may b e damaged.
Are the
characteristics of the
s u ction pipe thermistor
normal?
N O
Replace the discharge
pipe thermistor.
Are the
discharge pipe
thermistor characteristics
normal?
YES
N O
Replace the high
press
u re sensor
(S1 N PH).
Are the
high press u re sensor
characteristics
normal?
Service Checker
Use the Ser v ice Checker to find indoor u nits
operating u nder the follo w ing conditions:
&
• Gas pipe temperat u re (R6T) - Li qu id pipe temperat u re (R4T) < 2.5˚C
• Electronic expansion v al v e opening < 300 p u lse