7 Commissioning
Installation manual
11
(A)(F)TXP20~3 FTXF20~3 FTXF20~25B5V1B
Daikin room air conditioner
3P519299-1H – 2019.09
3
Turn the power supply on.
Result:
The flap of the indoor unit will open and close to set the
reference position.
INFORMATION
▪ For FTXF units, the following setting MUST be
completed within 5 minutes after the power supply is
turned on.
▪ In case you could NOT complete the setting in time,
turn the power supply off and wait at least 1 minute
before turning the power supply back on.
4
Press simultaneously:
Model
Buttons
FTXP and ATXP
,
and
FTXF
,
and
5
Press:
Model
Button
FTXP and ATXP
FTXF
6
Select:
Model
Symbol
FTXP and ATXP
FTXF
7
Press:
Model
Button
FTXP and ATXP
FTXF
ON/OFF
a
b
a
Operation lamp
b
Indoor unit ON/OFF switch
8
Press the indoor unit ON/OFF switch while the operation lamp
is blinking.
Jumper
Address
Factory setting
1
After cutting with nippers
2
INFORMATION
If the setting could NOT be completed while the operation
lamp was blinking, repeat the setting process from the
beginning.
9
When the setting is complete, press:
Model
Button
FTXP and ATXP
Keep
pressed for about
5 seconds.
FTXF
Result:
The user interface will return to the previous screen.
7
Commissioning
NOTICE
ALWAYS operate the unit with thermistors and/or pressure
sensors/switches. If NOT, burning of the compressor might
be the result.
7.1
Checklist before commissioning
After the installation of the unit, first check the items listed below.
Once all checks are fulfilled, the unit must be closed. Power-up the
unit after it is closed.
You read the complete installation instructions, as
described in the
installer reference guide
.
The
indoor units
are properly mounted.
The
outdoor unit
is properly mounted.
Air inlet/outlet
Check that the air inlet and outlet of the unit is NOT
obstructed by paper sheets, cardboard, or any other
material.
There are NO
missing phases
or
reversed phases
.
The
refrigerant pipes
(gas and liquid) are thermally
insulated.
Drainage
Make sure drainage flows smoothly.
Possible consequence:
Condensate water might drip.
The system is properly
earthed
and the earth terminals
are tightened.
The
fuses
or locally installed protection devices are
installed according to this document, and have NOT been
bypassed.
The
power supply voltage
matches the voltage on the
identification label of the unit.
The specified wires are used for the
interconnection
cable
.
The indoor unit receives the signals of the
user interface
.
There are NO
loose connections
or damaged electrical
components in the switch box.
The
insulation resistance
of the compressor is OK.
There are NO
damaged components
or
squeezed
pipes
on the inside of the indoor and outdoor units.
There are NO
refrigerant leaks
.
The correct pipe size is installed and the
pipes
are
properly insulated.
The
stop valves
(gas and liquid) on the outdoor unit are
fully open.
7.2
To perform a test run
Prerequisite:
Power supply MUST be in the specified range.
Prerequisite:
Test run may be performed in cooling or heating
mode.
