7 Commissioning
Installer reference guide
18
(A)(F)TXP20~3 FTXF20~71A2V1B
Daikin room air conditioner
4P513661-1 – 2017.10
6.4.5
To connect the electrical wiring on the
indoor unit
Electrical work should be carried out in accordance with the
installation manual and the national electrical wiring rules or code of
practice.
It is important to keep the power supply and the transmission wiring
separated from each other. In order to avoid any electrical
interference the distance between both wirings should ALWAYS be
at least 50 mm.
NOTICE
Be sure to keep the power line and transmission line apart
from each other. Transmission wiring and power supply
wiring may cross, but may NOT run parallel.
WARNING
Provide adequate measures to prevent that the unit can be
used as a shelter by small animals. Small animals that
make contact with electrical parts can cause malfunctions,
smoke or fire.
a
b
c
a
Terminal block
b
Electrical component block
c
Wire retainer
1
Strip the wire ends approximately 15 mm.
2
Match wire colours with terminal numbers on the indoor unit
terminal blocks and firmly screw the wires to the corresponding
terminals.
3
Connect the earth wires to the corresponding terminals.
4
Pull the wires to make sure that they are securely attached,
then retain the wires with the wire retainer.
5
Shape the wires so that the service lid fits securely, then close
the service lid.
6
Firmly fix the wires with the terminal screws.
7
Commissioning
7.1
Overview: Commissioning
This chapter describes what you have to do and know to
commission the system after it is installed.
Typical workflow
Commissioning typically consists of the following stages:
1
Checking the "Checklist before commissioning".
2
Performing a test run for the system.
7.2
Checklist before commissioning
Do NOT operate the system before the following checks are OK:
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.
7.3
To perform a test run
Prerequisite:
Power supply MUST be in the specified range.
Prerequisite:
Test run may be performed done in cooling or heating
mode.
Prerequisite:
Test run should be performed in accordance with the
operation manual of the indoor unit to make sure that all functions
and parts are working properly.
1
In cooling mode, select the lowest programmable temperature.
In heating mode, select the highest programmable temperature.
Test run can be disabled if necessary.
2
When the test run is finished, set the temperature to a normal
level. In cooling mode: 26~28°C, in heating mode: 20~24°C.
3
The system stops operating 3 minutes after turning the unit
OFF.
7.3.1
To perform a test run in winter season
When operating the air conditioner in
Cooling
mode in winter, set it
to test run operation using the following method.
