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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
+ 5 more

Parts

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Drive Motor
B2 Rollers
Tensioning System
+ 40 more

Daikin VRV X Series High-COP Type Air Conditioner RXQ16AHR

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Maintenance Plans for Daikin VRV X Series High-COP Type Air Conditioner Model RXQ16AHR

Integrate maintenance plans directly into your work orders in MaintainX.

Air Conditioner Test Operation Check

Test Operation Check

Is the temperature setting of the remote controller at the lowest level in cooling mode or in test mode?

Checklist

Is the operation lamp on?

Is the timer lamp off?

Is the fan operating?

Is the air from indoor unit cool?

Is the air from outdoor unit warm?

Is the compressor operating?

Run this procedure

Fan Motor Connector Check

Outdoor unit

Turn OFF the power supply

Measure the resistance between phases of U, V, W at the motor side connectors

Indoor unit: FXMQ50-140PB

Remove the X1A connector from the fan PCB (A2P)

Measure the resistance between the U and V, V and W, and W and U phases of the motor connector

Fan Motor Connector Check (Signal Cable): CHECK 17 Resistance measuring points and judgment criteria.

Remove the X2A connector

Measure the resistance between GND and Vcc, Hw, Hv, or Hu terminals of the motor connector

Run this procedure

Power Transistor Check

CHECK 4: Perform the following procedures prior to check.

Power OFF

Remove all the wiring connected to the PCB where power transistors are mounted on

Preparation Multimeter

Select the type of multimeter

Point of Measurement and Judgment Criteria

Power supply turned OFF

Wait for 10 minutes or more, then measure resistance

Select the mode for measurement

Run this procedure

Relay Broken Wire Check

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

Turn OFF the power supply to all equipment

Short circuit between the outdoor-outdoor unit terminal F1 and F2 in the 'Outdoor Unit A'

Conduct continuity checks between the transmission wiring terminal blocks F1 and F2 of the central remote controller using a multimeter

Is there continuity between the said terminal blocks?

Conduct continuity checks between the transmission wiring terminal blocks F1 and F2 of the unified ON/OFF controller

Conduct continuity checks between the outdoor-outdoor unit terminal of the 'Outdoor Unit E'

Conduct continuity checks between the outdoor-outdoor unit terminal of the 'Outdoor Unit D'

Conduct continuity checks between the outdoor-outdoor unit terminal of the 'Outdoor Unit C'

Run this procedure

Air Conditioner Test

Warning: This test operation requires trained personnel with PPE!

INFORMATION: It may take 10 minutes to achieve a uniform refrigerant state before the compressor starts.

During the test operation, the refrigerant running sound or the magnetic sound of a solenoid valve may become loud and the display indication may change. These are not malfunctions.

All front panels are closed (except the electrical component box inspection opening service cover)

All field settings are set

Power to the outdoor unit and the connected indoor units is ON

NOTICE: Be sure to turn on the power 6 hours before operation in order to protect the compressor

Default (idle) situation is existing

Push BS2 for 5 seconds or more. The unit will start test operation.

Run this procedure