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8 Finishing the indoor unit installation
b
S21 wire harness routing for other applications
c
S21 connector
3 Put the electrical wiring box cover back and pull the wire
harness around it as shown in the previous figure.
8
Finishing the indoor unit
installation
8.1
To insulate the drain piping,
refrigerant piping and
interconnection cable
1 After the drain piping, refrigerant piping and the electrical wiring
are finished. Wrap refrigerant piping, interconnection cable and
drain hose together using insulation tape. Overlap at least half
the width of the tape with each turn.
a
b
c
d
f
e
a
Drain hose
b
Interconnection cable
c
Mounting plate (accessory)
d
Refrigerant piping
e
Indoor unit fixing screw M4×12L (accessory)
f
Bottom frame
8.2
To pass the pipes through the wall
hole
1 Shape the refrigerant pipes along the pipe path marking on the
mounting plate.
a
b
c
c
d
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.
Installation manual
8
2×
e
2 Pass the drain hose and refrigerant piping through the wall hole
and seal the gap with a putty.
8.3
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).
9
Commissioning
NOTICE
General
commissioning
commissioning instructions in this chapter, a general
commissioning checklist is also available on the Daikin
Business Portal (authentication required).
The general commissioning checklist is complementary to
the instructions in this chapter and can be used as a
guideline and reporting template during the commissioning
and hand-over to the user.
NOTICE
ALWAYS operate the unit with thermistors and/or pressure
sensors/switches. If NOT, burning of the compressor might
be the result.
9.1
Checklist before commissioning
1 After the installation of the unit, check the items listed below.
2 Close the unit.
3 Power up the unit.
You read the complete installation instructions, as
described in the installer reference guide.
The indoor units are properly mounted.
checklist.
Next
to
the
FTXF50~71D5V1B6
Split system air conditioners
3P512025-11Z – 2021.10
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