Daikin FTXA20AW - Reactor; Checking Procedures

2 | Components
Service manual
132
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
b Fixing tab
c Support
3 Close the front panel.
4 Gently press the front panel down until it clicks.
2.15 Reactor
2.15.1 Checking procedures
To perform an electrical check of the reactor
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
1 Remove the required plate work, see "2.14Plate work"[4120].
DANGER: RISK OF ELECTROCUTION
Wait for at least 10 minutes after the circuit breaker has been turned OFF, to be sure
the rectifier voltage is below 10VDC before proceeding.
2 Visually check the reactor for any damage or burnt‑out components. If any
damage is found, replace the reactor, see "2.15.2Repair procedures"[4136].
Class 20~35 units
1 Check that the reactors are firmly installed on the main PCB.
a
a
a Reactor
2 Remove the main PCB, see "Repair procedures"[498]. The reactor measuring
points are ONLY reachable on the back side of the main PCB.
3 Measure the resistance of the reactor using a low ohm multi meter.
Result: The resistance MUST be as follows:
Measuring points Resistance
c 24~36mΩ