Daikin FTXA25BB/RXA25A, Installation Manual

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6 Commissioning
Installation manual
9
FTXA25~50(A)(B)2V1B(W)(S)(T)(B)
Daikin room air conditioner
3P482320-7P – 2019.10
d
e
c
b
f
a
2×
a Drain hose
b Interconnection cable
c Mounting plate (accessory)
d Refrigerant pipes
e Indoor unit fixing screw M4×12L (accessory)
f Bottom frame
5.5.2 To pass the pipes through the wall hole
1 Shape the refrigerant pipes along the pipe path marking on the
mounting plate.
c c d e
a
b
a Drain hose
b Caulk this hole with putty or caulking material.
c Adhesive vinyl tape
d Insulation tape
e Mounting plate (accessory)
NOTICE
▪ Do NOT bend refrigerant pipes.
▪ Do NOT push the refrigerant pipes onto the bottom
frame or the front grille.
2 Pass the drain hose and refrigerant pipes through the wall hole.
5.5.3 To fix the unit on the mounting plate
1 Set the indoor unit on the mounting plate hooks. Use the " "
marks as a guide.
2 Press the bottom frame of the unit with both hands to set it on
the bottom hooks of the mounting plate. Make sure that the
wires do NOT get squeezed anywhere.
Note: Take care that the interconnection cable does NOT get
caught in the indoor unit.
3 Press the bottom edge of the indoor unit with both hands until it
is firmly caught by the mounting plate hooks.
4 Secure the indoor unit to the mounting plate using 2 indoor unit
fixing screws M4×12L (accessory).
6 Commissioning
NOTICE
ALWAYS operate the unit with thermistors and/or pressure
sensors/switches. If NOT, burning of the compressor might
be the result.
6.1 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.
6.2 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.
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.