Third Party Components; Electrical Circuit; Checking Procedures - Daikin Perfera ARXM25A Service Manual

4 Third party components

4.1 Electrical circuit

4.1.1 Checking procedures

To check the power supply of the unit
To check the power supply to the indoor unit
RXM20~50A + ARXM25~50A + FTXM20~50A + ATXM20~50A + CTXM15A
Split Perfera ZETA R32
ESIE23-06 – 2023.12
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see Plate work.
1 Check that the power supply cables and earth connection are firmly fixed to
the power supply terminal X1M.
2 Measure the insulation resistance between each power supply terminal and
the ground using a megger device of 500 V DC. All measurements MUST be
>1MΩ. If insulation resistance is <1MΩ, earth leakage is present.
3 Turn ON the power of the unit.
4 Measure the voltage between L and N on the power supply terminal X1M.
Result: The voltage MUST be 230 V AC ± 10%.
Is the measured voltage (power supply)
correct?
Yes
No
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
1 Remove the required plate work, see Plate work.
2 Check that the power supply cables and earth connection are firmly fixed to
the indoor unit power supply terminal X1M.
3 Measure the insulation resistance between each power supply terminal and
the ground using a megger device of 500 V DC. All measurements MUST be
>1MΩ. If insulation resistance is <1MΩ, earth leakage is present.
4 Turn ON the power using the respective circuit breaker.
5 Measure the voltage between L and N on the indoor unit power supply
terminal X1M.
Result: The voltage MUST be 230 V AC ± 10%.
Is the measured voltage (power supply)
correct?
Yes
No
4 | Third party components
Action
Return to the troubleshooting of the
specific error and continue with the
next procedure.
Adjust the power supply, see
"4.1.2 Repair procedures" [
Action
Return to the troubleshooting of the
specific error and continue with the
next procedure.
Continue with the next step.
draft – 21/12/2023 13:09
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Service manual
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