Third Party Components; Electrical Circuit; Checking Procedures - Daikin RXTA30B2V1B Service Manual

5 Third party components

5.1 Electrical circuit

5.1.1 Checking procedures

To check the power supply of the unit
To check the power supply to the indoor unit
RXTM-R+RXTP-R+ARXTP-R+RXTA-B+FTXTA30B2V1B(W)
(B)+FTXTM30+40R2V1B+FTXTP25+35M5V1B+ATXTP25+35M5V1B
R32 Optimized Heating 4 Split
ESIE21-12A – 2022.02
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
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%.
5 Unbalance between the phases MUST NOT exceed 2%.
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
2 Check that the power supply cables and earth connection are firmly fixed to
the indoor unit power supply terminal X1M.
3 Turn ON the power using the respective circuit breaker.
4 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
5 Check the power supply to the unit, see
5 Third party components
|
"4.17 Plate work" [
Action
Return to the troubleshooting of the
specific error and continue with the
next procedure.
Adjust the power supply, see
"5.1.2 Repair procedures" [
4
"4.17 Plate work" [ 144].
Action
Return to the troubleshooting of the
specific error and continue with the
next procedure.
Continue with the next step.
"5.1.1 Checking procedures" [
4
144].
4
210].
4
209].
Service manual
209