Daikin FNA35A2VEB9 - 6 Energy Saving and Optimum Operation; 7 Maintenance and Service; Overview: Maintenance and Service

6 Energy saving and optimum operation
User reference guide
6
FNA25~60A2VEB(9)
Split system air conditioners
4P543324-3 – 2018.08
Outdoor units using R32 refrigerant
Outdoor unit Cooling Heating
RXM25~60 –10~46°CDB –15~24°CDB
–16~18°CWB
18~32°CDB 10~30°CDB
3MXM40~68
4MXM68~80
5MXM90
–10~46°CDB –15~24°CDB
–16~18°CWB
18~32°CDB 10~30°CDB
RZAG35~60 –20~52°CDB –20~24°CDB
–21~18°CWB
18~32°CDB 10~30°CDB
RZAG71~140 –20~52°CDB –19.5~21°CDB
–20~15.5°CWB
18~37°CDB
12~28°CWB
10~27°CDB
RZASG71~140 –15~46°CDB –14~21°CDB
–15~15.5°CWB
20~37°CDB
14~28°CWB
10~27°CDB
Indoor humidity ≤80%
(a)
Symbol Explanation
Outdoor temperature
Indoor temperature
(a) To avoid condensation and water dripping out of the unit. If
the temperature or the humidity is beyond these conditions,
safety devices may be put in action and the air conditioner
may not operate.
6 Energy saving and optimum
operation
CAUTION
This unit is equipped with electrically powered safety
measures, such as a refrigerant leak detector. In order to
be effective, the unit must be electrically powered at all
times after installation, except for short service periods.
1
Observe the following precautions to ensure the system operates
properly.
▪ Adjust the room temperature properly for a comfortable
environment. Avoid excessive heating or cooling.
▪ Prevent direct sunlight from entering a room during cooling
operation by using curtains or blinds.
▪ Ventilate often. Extended use requires special attention to
ventilation.
▪ Keep doors and windows closed. If the doors and windows remain
open, air will flow out of your room causing a decrease in the
cooling or heating effect.
▪ Be careful NOT to cool or heat too much. To save energy, keep
the temperature setting at a moderate level.
▪ NEVER place objects near the air inlet or the air outlet of the unit.
Doing so may cause a reduced heating/cooling effect or stop
operation.
▪ When the display shows (time to clean the air filter), clean the
filters (see "7.2.3To clean the air filter"on page7).
▪ Keep the indoor unit and user interface at least 1 m away from
televisions, radios, stereos, and other similar equipment. Failing to
do so may cause static or distorted pictures.
▪ Do NOT place items under the indoor unit, as they may be
damaged by water.
▪ Condensation may form if the humidity is above 80% or if the
drain outlet gets blocked.
7 Maintenance and service
7.1 Overview: Maintenance and
service
The installer has to perform a yearly maintenance.
About the refrigerant
This product contains fluorinated greenhouse gases. Do NOT vent
gases into the atmosphere.
Refrigerant type: R32
Global warming potential (GWP) value: 675
Refrigerant type: R410A
Global warming potential (GWP) value: 2087.5
NOTICE
In Europe, the greenhouse gas emissions of the total
refrigerant charge in the system (expressed as tonnes CO
2
equivalent) is used to determine the maintenance intervals.
Follow the applicable legislation.
Formula to calculate the greenhouse gas emissions:
GWP value of the refrigerant × Total refrigerant charge [in
kg] / 1000
Please contact your installer for more information.
WARNING
R410A is a non-combustible refrigerant, and R32 is a
mildly flammable refrigerant; they normally don’t leak. If the
refrigerant leaks in the room and comes into contact with
fire from a burner, a heater, or a cooker, this may result in
a fire (in case of R32), or the formation of a harmful gas.
Turn off any combustible heating devices, ventilate the
room, and contact the dealer from where you purchased
the unit.
Do not use the unit until a service person confirms that the
part from which the refrigerant leaked has been repaired.
WARNING
▪ Do NOT pierce or burn refrigerant cycle parts.
▪ Do NOT use cleaning materials or means to accelerate
the defrosting process other than those recommended
by the manufacturer.
▪ Be aware that the refrigerant inside the system is
odourless.
(1)
Only for units using R32 refrigerant. Refer to the outdoor unit specifications for the type of refrigerant to be used.