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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
+ 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 Outdoor Heat Pump 3MXS40K3V1B

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Maintenance Plans for Daikin Outdoor Heat Pump Model 3MXS40K3V1B

Integrate maintenance plans directly into your work orders in MaintainX.

Outer Panel Removal

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

1 Remove the 4 screws and remove the top panel.

The illustrations are for 3-room models as representative.

2 Remove the 6 screws of the front panel.

3 Remove the screw of the shield plate.

4 Unfasten the 2 hooks and remove the shield plate.

5 Unfasten the 4 hooks and remove the front panel.

6 Remove the 4 screws and remove the discharge grille.

7 Remove the 2 screws of the stop valve cover.

Run this procedure

Sound Blanket Removal

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

1. Remove the right side panel.

1 Remove the 3 screws of the right side panel.

2 Remove the 2 screws on the back.

3 Remove the protection rubber.

There is a hook on the back.

4 Lift up and remove the right side panel.

2. Remove the partition plate.

1 Remove the 2 screws of the partition plate.

Run this procedure

Electrical Box Removal

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

1. Disconnect the harnesses.

1 Peel off the fixing tape.

2 Unfasten the 4 hooks and remove the electrical box cover.

3 Detach the clamp and disconnect the connector [S70].

[S70]: fan motor

When reassembling, insert the clamp into either hole as below.

Some models have no ferrite lead wire from the hooks.

4 Release the fan motor core for the harness of [S70].

Run this procedure

Compressor Removal

Warning

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

Be careful not to get yourself burnt with the pipes and other parts that are heated by the gas brazing machine.

If the refrigerant gas leaks during work, ventilate the room. (If the refrigerant gas is exposed to flames, toxic gas may be generated.)

Since it may happen that the refrigerant oil in the compressor catches fire, prepare wet cloth so as to extinguish fire immediately.

Caution

From the viewpoint of global environment protection, do not discharge the refrigerant gas in the atmosphere. Make sure to collect all the refrigerant gas.

Restore the piping by non-oxidation brazing.

Note

Run this procedure

PCB Removal

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

1. Remove the service monitor PCB.

1 Disconnect the connectors [S52] [S102] from the service monitor PCB.

2 Unfasten the upper hook and remove the service monitor PCB.

2. Remove the main PCB.

1 Remove the screw of the terminal board and open it.

2 Disconnect the connectors for the terminal board on the right side.

[AC1] [AC2] : power supply