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

3 Third party components

3.1 Electrical circuit

3.1.1 Checking procedures

To check the power supply of the unit
To check the power supply to the indoor unit
FTXF20~71A + FTXF20~25B + FTXF20~42C + ATXF20~71A + ATXF20~42C
+ RXF20~71A + RXF20~60B + RXF20~42C + ARXF20~71A + ARXF20~42C
Split Sensira R32
ESIE18-12E – 2021.02
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 using the respective circuit breaker.
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
3 Third party components
|
"2.10 Plate work" [
Action
Return to the troubleshooting of the
specific error and continue with the
next procedure.
Adjust the power supply, see
"3.1.2 Repair procedures" [
4
"2.10 Plate work" [ 101].
Action
Return to the troubleshooting of the
specific error and continue with the
next procedure.
Continue with the next step.
"3.1.1 Checking procedures" [
4
101].
4
128].
4
127].
Service manual
127