Installation Site; Operation Range; Operation Procedure; Optimum Operation - Daikin FBQ18PVJU Operation Manual

3. OPERATION RANGE

If the temperature or the humidity is beyond the following condi-
tions, safety devices may work and the air conditioner may not
operate, or sometimes, water may drop from the indoor unit.
OPERATION
OUTDOOR
COOLING 23 to 115 (DB)
HEATING 0 to 60 (WB)
DB: Dry bulb temperature (°F)
WB: Wet bulb temperature (°F)
The setting temperature range of the remote controller is 60°F
to 90°F.

4. INSTALLATION SITE

Regarding places for installation
• Is the air conditioner installed at a well-ventilated place
where there are no obstacles around?
• Do not use the air conditioner in the following places.
a. Filled with much mineral oil such as cutting oil
b. Where there is much salt such as a beach area
c. Where sulfured gas exists such as a hot-spring resort
d. Where there are considerable voltage fluctuations such as
a factory or plant
e. Vehicles and vessels
f. Where there is much spray of oil and vapor such as a
cookery, etc.
g. Where there are machines generating electromagnetic
waves
h. Filled with acid and/or alkaline steam or vapor
• Is a snow protection measure taken?
For details, consult your dealer.
Regarding wiring
• All wiring must be performed by an authorized electri-
cian.
To do wiring, ask your dealer. Never do it by yourself.
• Make sure that a separate power supply circuit is pro-
vided for this air conditioner and that all electrical work
is carried out by qualified personnel according to local
laws and regulations.
Pay attention to running noises, too
• Are the following places selected?
a. A place that can sufficiently withstand the weight of the air
conditioner with less running noises and vibrations.
b. A place where the hot wind discharged from the air outlet
of the outdoor unit and the running noises.
• Are you sure that there are no obstacles near the air out-
let of the outdoor unit?
Such obstacles may result in declined performance and
increased running noises.
• If abnormal noises occur in use, consult your dealer.
4
TEMPERATURE (°F)
INDOOR
57 to 77 (WB)
59 to 80.5 (DB)
Regarding drainage of drain pipe
• Is the drain pipe executed to perform complete drain-
age?
If proper drainage is not carried out from the outdoor drain
pipes during air-conditioning operation, chances are that
dust and dirt are clogged in the pipe. This may result in a
water leakage from the indoor unit. Under such circum-
stances, stop the operation of the air conditioner, and then
consult your dealer or our service station.

5. OPERATION PROCEDURE

Read the operation manual that came with the
remote controller.
• Operating procedure varies with heat pump type and cooling
only type. Contact your Daikin dealer to confirm your system
type.
• To protect the unit, turn on the main power switch 6 hours
before operation.
• If the main power supply is turned off during operation, oper-
ation will restart automatically after the power turns back on
again.

6. OPTIMUM OPERATION

Observe the following precautions to ensure the system oper-
ates.
• Adjust the room temperature properly for a comfortable envi-
ronment. Avoid excessive heating or cooling.
• Prevent direct sunlight from entering a room during cooling
operation by using curtains or blinds.
• Ventilate the room regularly.
Using the unit for long periods of time requires attentive ven-
tilation of the room.
• Keep doors and windows closed. If the doors and windows
remain open, room air will flow out and cause to decrease the
effect of cooling and heating.
• Do not place other heaters directly below the indoor unit.
They may deform due to the heat.
• Never place objects near the air inlet and the air outlet of the
unit. It may cause deterioration in the effect or stop in the
operation.
• Turn off the main power supply switch when it is not used for
long periods of time. When the main power switch is turned
on, some watts of electricity is being used even if the system
is not operating. Turn off the main power supply switch for
saving energy. When reoperating, turn on the main power
supply switch 6 hours before operation for smooth running
(Refer to MAINTENANCE).
• When the display shows "Time to clean filter" ask a qualified
service person to clean the filter (Refer to MAINTENANCE).
• Fully use the function of airflow direction adjust.
Cold air gathers on the floor, and warm air gathers in the ceil-
ing.
Set the airflow direction parallel during cooling or dry opera-
tion, and set it downwards during heating operation.
Do not let the air blow directly to a person.
• It takes time for the room temperature to reach the set tem-
perature.
We recommend starting the operation in advance using timer
operation.
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