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Documents & Manuals

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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
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Procedures

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Motion Industries
Applied Industrial Technologies
Electrical Brothers
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Parts

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Drive Motor
B2 Rollers
Tensioning System
+ 40 more

Daikin Indoor Cooling/Heating Unit FXMQ09PBVJU

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Maintenance Plans for Daikin Indoor Cooling/Heating Unit Model FXMQ09PBVJU

Integrate maintenance plans directly into your work orders in MaintainX.

Electronic Expansion Valve Coil Check

Remove the connector for electronic expansion valve (X7A) from PCB

Check continuity between White and Yellow

Measure resistance value between White and Orange

Measure resistance value between White and Red

Measure resistance value between Yellow and Blue

Measure resistance value between Yellow and Brown

Sign off on the Electronic Expansion Valve Coil Check

Run this procedure

Refrigerant Check

Refrigerant Overcharge Check

High pressure reading

Overload control conducted?

Superheated degree of suction gas

Discharge pipe temperature

Subcooled degree of condensate

Temperature of discharge air through the subcooled section is lower?

Refrigerant Shortage Check

Superheated degree of suction gas

Run this procedure

Heat Recovery System Vacuuming/Dehydration Maintenance

Normal vacuuming and dehydration

Vacuum pump connected to service ports of liquid pipe and gas pipe

Enter the vacuum level after 2 hours of vacuuming

Did the vacuum level reach –100.7 kPa (–14.6 psi) or less?

Enter the vacuum level after additional 1 hour of vacuuming if needed

Did the vacuum level reach –100.7 kPa (–14.6 psi) or less after additional vacuuming?

Leak tests conducted if needed

Compressor left at the degree of vacuum of –100.7 kPa (–14.6 psi) or less for a period of 1 hour or more

Did the vacuum gauge reading rise?

Run this procedure

Superheat Operation Check

Superheating temperature control in cooling is conducted by indoor unit electronic expansion valve

Enter the superheating temperature in cooling

Superheating temperature control in heating is conducted by outdoor unit electronic expansion valve (main)

Enter the superheating temperature in heating

Judgement criteria of superheat operation: Suction gas superheated degree: 10°C (50°F) and over. Discharge gas superheated degree: 45°C (113°F) and over, except immediately after compressor starts up or is running under drooping control

Is the suction gas superheated degree 10°C (50°F) and over?

Is the discharge gas superheated degree 45°C (113°F) and over, except immediately after compressor starts up or is running under drooping control?

Sign off on the superheat operation check

Run this procedure

Heat Recovery System Maintenance

Check for High Pressure in cooling

Check for High Pressure in heating

Check Thermistor

Check Pressure Sensor

Check for broken wire of the relay wire

Procedure for checking outdoor-outdoor unit transmission wiring for broken wires

Turn OFF the power supply to all equipment