7 Maintenance and service
Installation and operation manual
11
FXHQ-A
VRV system air conditioner
3P668115-3E – 2022.11
1
Open the suction grille
. Simultaneously slide all knobs (2 for
class 32, 3 for class 63 and 100) in the direction of the arrow
and carefully open the suction grille.
a
a
Knob
2
Remove the air filter.
Push up the filter knobs at 2 places and
take out the air filter.
a
a
Filter knob
3
Clean the air filter.
Use a vacuum cleaner or wash with water.
If the air filter is very dirty, use a soft brush and neutral
detergent.
4
Dry the air filter in the shadow.
5
Reattach the air filter and close the suction grille.
6
Turn ON the power.
7
To remove warning screens, see the reference guide of the
user interface.
7.2.3
To clean the suction grille
1
Open the suction grille
. Simultaneously slide all knobs (2 for
class 32, 3 for class 63 and 100) in the direction of the arrow
and carefully open the suction grille.
a
a
Knob
2
Remove the suction grille.
While keeping the suction grille
open, unhook the straps from the indoor unit. Then remove the
clips (2 for class 32, 3 for class 63 and 100) holding the suction
grille.
a
a
Strap
a
a
Clip
3
Remove the air filter.
Refer to
4
Clean the suction grille.
Wash with a soft bristle brush and
water or neutral detergent. If the suction grille is very dirty, use
a typical kitchen cleaner, leave it on for 10 min, then wash it
with water.
5
Reattach the air filter.
Refer to
6
Reattach the suction grille and close it.
(steps 2 and 1 in
reverse order).
INFORMATION
When closing the suction grille, make sure the straps of the
suction grille are not pinched anywhere.
7.3
About the refrigerant
This product contains fluorinated greenhouse gases. Do NOT vent
gases into the atmosphere.
Refrigerant type: R410A
Global warming potential (GWP) value: 2087.5
NOTICE
Applicable legislation on
fluorinated greenhouse gases
requires that the refrigerant charge of the unit is indicated
both in weight and CO
2
equivalent.
Formula to calculate the quantity in CO
2
equivalent
tonnes:
GWP value of the refrigerant × total refrigerant
charge [in kg]/1000
Contact your installer for more information.
WARNING
▪ The refrigerant in the system is safe and normally does
NOT leak. If the refrigerant leaks in the room, contact
with a fire of a burner, a heater or a cooker may result
in a harmful gas.
▪ Turn OFF any combustible heating devices, ventilate
the room and contact the dealer where you purchased
the unit.
▪ Do NOT use the system until a service person confirms
that the portion where the refrigerant leaks is repaired.
