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Unit installation
Installer and user reference guide
58
FXUA50~100AVEB
VRV system air conditioner
4P673843-1 – 2022.01
2
For rear and upward piping, wrap the vinyl tape 2 or 3 times around the elbow
so that the tape covers more than the width of the metal camp, leaving
10~15 mm unwrapped at the end of the elbow.
3
Tighten the metal clamp over the taped part of the elbow or drain hose with a
torque of 1.35±0.15N·m. Wrap the end of the metal clamp with vinyl tape or
bend the end inwards to avoid damaging the sealing pad.
4
Check for water leaks (see
5
Wind the large sealing pad (= insulation) around the metal clamp and drain
hose, and fix it with tie wraps. Start wrapping from the tightened part of the
metal clamp so that the end of the metal clamp is wrapped twice.
6
Connect the drain piping to the drain hose.
To check for water leaks
The procedure differs depending on whether installation of the system is already
completed. When installation of the system is not yet completed, temporarily
connect the user interface and power supply to the unit.
When installation of the system is not yet completed
1
Temporarily connect electrical wiring.
▪
Remove the service cover. See
"18.2 To connect the electrical wiring to the
▪
Connect the user interface (a).
▪
Connect the power supply (b).
▪
Reattach the service cover. See
"18.2 To connect the electrical wiring to the
N
L
b
a
a
User interface terminal block
b
Power supply terminal block
2
Turn ON the power.
3
Start fan only operation (see the reference guide or the service manual of the
user interface).
4
Gradually pour approximately 1 l of water through the air discharge outlet,
and check for leaks.
3
4
2
1
b
c
a
≥100 mm
