38
9
INSTALLATION/SERVICING TOOLS
Tools
10
MAINTENANCE
Cleaning of Return grille
Preparation :
1. Turn off the main power supply switch (or breaker)
before the unit maintenance.
2. Dismount the Suction grille.
Clean the Return grilles with water:
• Wipe down the Suction 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.
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
o
o
¡
o
Applicable to R22 model
¡
—
——
¡
o
¡
: Newly prepared (They are special requirements for R407C, separate from those for R22.)
o
: Existing tools are available.
For the details of the tools, refer to the Installation manual of the outdoor unit.
Suction grille
Pull out suction grille
while pushing hook.
Suction grille
fixing knob
Hinge
Slide
Preparation :
1. Turn off the main power supply switch (or breaker)
before the unit maintenance.
2. Dismount the Return grille.
Removal of suction grille
Slide the suction grille fixing knobs (two positions)
toward the arrow direction, and then open the suction
grille.
Under the condition of suction grille opened, push the
hook section of hinges (two positions) at the rear side,
and then pull out the suction grille.
Summary of Contents for RAV-SM1101CT-E
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