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Maintenance, Installation/servicing tools, O¡ o – Toshiba R410A User Manual

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MAINTENANCE

Cleaning of Return grille

Preparation :

1. Turn off the main power supply switch (or breaker) before the unit maintenance.

2. Dismount the Return grille.

Clean the Return grilles with water:

• Wipe down the Return grille with a sponge or towel moistened with a kitchen detergent.

(Do not use any metallic brush for cleaning.)

• Carefully rinse the Return grille to wash out the detergent.

• After rinsing the Return grille with water, dry it in the shade.

CAUTION

• Do not start the air conditioner while leaving the return grille removed.

Cleaning of Air Filters

If the air filters are not cleared, it not only impairs the cooling performance of air conditioner but causes a failure in

the air conditioner such as water drops.

Preparation :

1. Turn off the main power supply switch (or breaker) before the unit maintenance.

2. Dismount the Return grille.

Use a vacuum cleaner to remove dust from the filters or wash them with water.

• After rinsing the air filters with water, dry them in the shade.

• Set the air filter into the air conditioner.

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INSTALLATION/SERVICING TOOLS

Tools

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: Newly prepared (They are special requirements for R407C, separate from those for R22.)

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: Existing tools are available.

For the details of the tools, refer to the Installation manual of the outdoor unit.

Tools

Gauge manifold

Charge hose

Electronic balance for
refrigerant charging

Torque wrench
(nominal diam.
1/4, 3/8, 1/2, 5/8)

Tools

Flare tool
(clutch type)

Gauge for projection
adjustment

Vacuum pump
adapter

Gas leak detector

Applicable to R22 model

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Applicable to R22 model

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