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5 Installation
NOTICE
Low-noise switch. If you want to remotely turn ON/OFF
low-noise operation (see setting [2‑18]), you must install a
low-noise
switch.
Use
microcurrent (≤1 mA, 12 V DC). Connect to X2M/A+B.
NOTICE
Output signals. The outdoor unit is provided with a
terminal (X3M) that can output 4 different signals. The
signal is 220~240 V AC. The maximum load for all signals
is 0.5 A. The unit outputs a signal in the following
situations:
▪ C/C1: caution signal – connection recommended –
when an error occurs that does not stop unit operation.
▪ C/W1: warning signal – connection recommended –
when an error occurs that causes unit operation to
stop.
▪ R/P2: run signal – connection optional – when the
compressor is running.
▪ P1/P2: operation signal – connection mandatory –
when the indoor unit solenoid valve is being controlled.
Wiring
Maximum wiring length
5
Installation
5.1
Opening the units
5.1.1
To open the outdoor unit
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
2
1
1×
5.2
Mounting the outdoor unit
5.2.1
To provide the installation structure
Prepare 4 sets of anchor bolts, nuts and washers (field supply) as
follows:
Installation and operation manual
12
a
voltage-free
contact
for
Sheathed cable (2 wires)
Vinyl cords
0.75~1.25 mm²
130 m
(mm)
a
Make sure not to cover the drain holes.
INFORMATION
The recommended height of the upper protruding part of
the bolts is 20 mm.
NOTICE
Fix the outdoor unit to the foundation bolts using nuts with
resin washers (a). If the coating on the fastening area is
stripped off, the nuts rust easily.
a
5.2.2
To install the outdoor unit
5.2.3
To prevent the outdoor unit from falling
over
In case the unit is installed in places where strong wind can tilt the
unit, take following measure:
1 Prepare 2 cables as indicated in the following illustration (field
supply).
2 Place the 2 cables over the outdoor unit.
3 Insert a rubber sheet between the cables and the outdoor unit
to prevent the cables from scratching the paint (field supply).
4 Attach the ends of the cables and tighten them.
4× M12
a
4× M12
LRMEQ+LRLEQ3+4BY1
Air-cooled refrigeration condensing unit
4P545024-1 – 2018.09
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Troubleshooting
