Daikin Perfera ARXM R Series, Service Manual

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3 | Components
Service manual
120
RXM20~71R + ARXM25~71R + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11 – 2021.01
INFORMATION
It is recommended to perform the checks in the listed order.
To perform a power check of the intelligent eye sensor
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
1 Remove the required plate work, see "3.14 Plate work" [
4
151].
2 Turn ON the power of the unit.
3 Remove the control panel from the indoor unit.
4 Measure the power supply voltage between the pins 1‑2 on the intelligent eye
sensor connector CN.
Result: The measured voltage MUST be 4.75~5.25 V DC.
a
b
a Control panel
b Intelligent eye sensor connector CN
Is the measured power supply voltage
correct? Action
Yes Perform an electrical check of the
intelligent eye sensor, see
"Checking
procedures" [
4
119].
No Continue with the next step.
5 Measure the output voltage between between the pins 1‑2 on the connector
S602 on the indoor unit main PCB.
Result: The measured voltage MUST be 4.75~5.25 V DC.
Is the output voltage on the indoor unit
main PCB correct? Action
Yes Replace the intelligent eye sensor
wiring harness, see
"Repair
procedures" [
4
122].
No Perform a check of the indoor unit main
PCB, see
"Checking procedures" [ 4 102].
To perform an electrical check of the intelligent eye sensor
Prerequisite: First perform a power check of the intelligent eye sensor, see
"Checking procedures" [
4
119].