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Documents & Manuals

Find all the essential guides in one place.

Tensioning Guide
Belt-diagram
C-120 pulleys
+ 13 more

Work Order Templates

Pre-built workflows to keep your asset running smoothly.

Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
+ 29 more

Procedures

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Motion Industries
Applied Industrial Technologies
Electrical Brothers
+ 5 more

Parts

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Drive Motor
B2 Rollers
Tensioning System
+ 40 more

Daikin Indoor Unit Wall Mounted Multi-Split Type Air Conditioner FTXR09WVJUW9

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Maintenance Plans for Daikin Indoor Unit Wall Mounted Multi-Split Type Air Conditioner Model FTXR09WVJUW9

Integrate maintenance plans directly into your work orders in MaintainX.

Electronic Expansion Valve Check

EV connector correctly inserted in the PCB

Match between EV unit number and connector number

All EVs generate latching sound after power cycle

If any EV does not generate latching sound, proceed to next step

Continuity between pins 5 - 1, 5 - 2, 5 - 3, 5 - 4 on disconnected connector

If no continuity, the EV coil is faulty

If no EV generates a latching sound, the outdoor unit PCB is faulty

Good coil mounted in non-latching EV unit generates latching sound

If latching sound is generated, the outdoor unit PCB is faulty

Run this procedure

Capacitor Voltage Check

Warning: This procedure requires trained personnel with PPE!

Before this check, be sure to check the main circuit for short circuit.

Is the circuit breaker still on?

Measure the voltage according to the drawing of the model in question. Be careful never to touch any live parts.

Voltage between FU2 and DC–

Is the voltage between FU2 and DC– 50 V or less?

The surface of the test points (DC–) may be covered with the coating. Be sure to make firm contact between the multimeter probes and the test points.

Before this check, be sure to check the main circuit for short circuit.

Is the circuit breaker still on?

Run this procedure

Power Supply Waveform Check

Warning: This check requires trained personnel with PPE!

Measure the power supply waveform between No. 1 and No. 2 on the terminal strip

Is the power supply waveform a sine wave?

Is there waveform disturbance near the zero-cross?

Upload a photo of the waveform

Sign off on the power supply waveform check

Run this procedure

Inverter Analyzer Check

Warning: This procedure requires trained personnel with PPE!

Power turned off?

Install an inverter analyzer instead of a compressor

Charged voltage of the built-in smoothing electrolytic capacitor dropped to 10 VDC or below?

Terminals removed from the compressor?

Terminals connected to the terminals of the inverter analyzer without touching each other?

Activate the power transistor test operation from the outdoor unit

Forced cooling operation ON/OFF switch pressed for 5 seconds?

Diagnose according to 6 LEDs lighting status

Run this procedure

Indoor Fan Motor Connector Check

CTXS, FTXS, FTXR, FVXS Series

1. Check the connection of connector.

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

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).

CDMQ, FDMQ Series

1. Turn the power supply OFF.

2. With the fan motor connector disconnected, measure the resistance between each pin, then make sure that the resistance is more than the value mentioned in the following table.

Run this procedure