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Documents & Manuals

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Tensioning Guide
Belt-diagram
C-120 pulleys
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Work Order Templates

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Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
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Motion Industries
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Electrical Brothers
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Drive Motor
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Daikin R32 Split Series Air Conditioner ARXP20M5V1B

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Maintenance Plans for Daikin R32 Split Series Air Conditioner Model ARXP20M5V1B

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R32 Split Series Air Conditioner Testing

Prerequisite: Power supply MUST be in the specified range.

Prerequisite: Test run may be performed in cooling or heating mode.

Prerequisite: Test run should be performed in accordance with the operation manual of the indoor unit to make sure that all functions and parts are working properly.

Select mode for test run

Set temperature for test run

Test run successful?

Set normal temperature level

The system stops operating 3 minutes after the unit is turned OFF.

INFORMATION: Even if the unit is turned OFF, it consumes electricity.

Run this procedure

R32 Split Series Air Conditioner Maintenance

DANGER: RISK OF EXPLOSION

Pump down – Refrigerant leakage. If you want to pump down the system, and there is a leak in the refrigerant circuit:

Do NOT use the unit's automatic pump down function, with which you can collect all refrigerant from the system into the outdoor unit. Possible consequence: Self-combustion and explosion of the compressor because of air going into the operating compressor.

Use a separate recovery system so that the unit's compressor does NOT have to operate.

NOTICE: During pump down operation, stop the compressor before removing the refrigerant piping. If the compressor is still running and the stop valve is open during pump down, air will be sucked into the system. Compressor breakdown or damage to the system can result due to abnormal pressure in the refrigerant cycle.

Pump down operation will extract all refrigerant from the system into the outdoor unit.

Remove the valve cap from the liquid stop valve and the gas stop valve.

Carry out forced cooling. See '11.3 To start and stop forced cooling' [413].

After 5 to 10 minutes (after only 1 or 2 minutes in case of very low ambient temperatures (<−10°C)), close the liquid stop valve with a hexagonal wrench.

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Leak Check

NOTICE: Do NOT exceed the unit's maximum working pressure (see 'PS High' on the unit name plate).

NOTICE: ALWAYS use a recommended bubble test solution from your wholesaler.

NEVER use soap water for the following reasons: Soap water may cause cracking of components, such as flare nuts or stop valve caps. Soap water may contain salt, which absorbs moisture that will freeze when the piping gets cold. Soap water contains ammonia which may lead to corrosion of flared joints (between the brass flare nut and the copper flare).

Charge the system with nitrogen gas up to a gauge pressure

Check for leaks by applying the bubble test solution to all connections.

Discharge all nitrogen gas.

Sign off on the leak check

Run this procedure