Daikin Indoor Unit Wall Mounted Type FTXS25CAVMB

2. Check motor power supply voltage output (pins 4-7 and 4-8).

3. Check motor control voltage (pins 4-3).

4. Check rotation command voltage output (pins 4-2).

5. Check rotation pulse input (pins 4-1).

2. Check motor control voltage output (pins 2-1).;

Warning: Never touch any live parts for at least 10 minutes after turning off the circuit breaker.

If unavoidably necessary to touch a live part, make sure there is no DC voltage using the tester.

Check the continuity with the tester. Reverse the pins and make sure there is continuity.

Sign off on the capacitor check

Voltage of 320±30V is being applied

Stop the operation first and then the power, and disconnect the connector S70

With the system and the power still off, reconnect the connector S70

Make a turn of the fan motor with a hand

Pulse (0-15 V) appears twice at pins 1 and 4

Fan motor protection fuse is intact

Warning: Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work.

1. Disconnect the connecting wires

Illustrations are for 3 room model. (4MK(X)S-F models have 4 ports)

2 Disconnect the connecting wires.

Connecting wires of the A, B, C, D port

Warning: Ensure the power is off before starting the procedure

Continuity of the switch connection checked

Can the shutter be opened and closed with hand?

Sign off on the limit switch continuity check