Reactor; Checking Procedures - Daikin FTXA20A Service Manual

2 | Components

2.15 Reactor

2.15.1 Checking procedures

To perform an electrical check of the reactor
Service manual
132
b Fixing tab
c Support
3 Close the front panel.
4 Gently press the front panel down until it clicks.
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
1 Remove the required plate work, see
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
Class 20~35 units
1 Check that the reactors are firmly installed on the main PCB.
a Reactor
2 Remove the main PCB, see
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
c
"2.14 Plate
"2.15.2 Repair
a
a
"Repair procedures" [
Resistance
24~36 mΩ
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
4
work" [ 120].
4
procedures" [ 136].
4
98]. The reactor measuring
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05