Maintenance - Toshiba Carrier MMU-UP0071HP-UL Manuel D'installation

Wireless remote controller
(RBC-AXU33UP-UL or RBC-AXU31UP-UL)
Test run (forced cooling operation)
REQUIREMENT
Finish the forced cooling operation in a short time
because it applies excessive strength to the air
conditioner.
How to perform forced cooling operation
1
When TEMPORARY button is pushed for
10 seconds or more, "Pi!" sound is heard
and the operation changes to a forced cooling
operation. After approx. 3 minutes, a cooling
operation starts forcedly.
Check cool air starts blowing. If the operation
does not start, check wiring again.
2
To stop a test operation, push TEMPORARY
button once again (approx. 1 second).
• Check wiring / piping of the indoor and outdoor
units in forced cooling operation.
45-EN
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10

Maintenance

CAUTION
Before maintenance, be sure to turn off the leakage
breaker.
Cleaning of air filter
• If is displayed on the remote controller, maintain
the air filter.
• Clogging of the air filter reduce cooling / heating
performance.
Cleaning of panel and air filter
Preparation :
1. Turn off the air conditioner by the remote controller.
2. Open the air intake grille.
• Slide the button of the air intake grille inward, and
open the air intake grille slowly while holding it.
Air intake
grille
Knob
Cleaning of air filters
If the air filters are not cleaned, it not only reduce the
cooling a performance of air conditioner but causes a
failure in the air conditioner such as water falling in
drops.
Preparation :
1. Stop the operation by remote controller.
2. Dismount the air filter.
Strap to
prevent falling
Air filter
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.
Clean the panel and air filter with water:
• Wipe down the panel and air filter with a sponge or
towel moistened with a kitchen detergent.
(Do not use any metallic brush for cleaning.)
• Carefully rinse the panel and air filter to wash out
the detergent.
• After rinsing the panel and air filter with water,
dry it in the shade.
1. Close the air intake grille.
• Close the air intake grille, slide the knob outward,
and fix the air intake grille securely.
Air intake
grille
Knob
2. Reset clean the air filter.
• "FILTER " disappears.
CAUTION
• Do not start the air conditioner while leaving the panel
and air filter removed.
46-EN