Daikin LRMEQ4BY1, Инструкция по установке и эксплуатации

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6 Installation
Installer and user reference guide
25
LRMEQ+4BY1
Air-cooled refrigeration condensing unit
4P500362-1A – 2018.09
i Run signal
j Operation signal
NOTICE
The operation output P1/P2 of the outdoor unit must be
connected to all solenoid valves that are installed upstream
of the expansion valves at the indoor unit. This connection
is required because the outdoor unit must be able to
control the solenoid valves during startup (to prevent liquid
refrigerant from entering the compressor) and oil return
operation.
NOTICE
Remote operation switch . The unit is factory-equipped
with an operation switch with which you can turn unit
operation ON/OFF. If you want to remotely turn outdoor
unit operation ON/OFF, a remote operation switch is
required. Use a voltage-free contact for microcurrent
(≤1 mA, 12 V DC). Connect to X2M/C+D, and set to
"Remote ".
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 a voltage-free contact for
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.
NOTICE
▪ Field wiring may not touch internal piping in order to
avoid wire damage due to high temperature piping.
▪ Firmly close the lid and arrange the electrical wires so
as to prevent the lid or other parts from coming loose.
6.8.3 Precautions when connecting the
electrical wiring
DANGER: RISK OF ELECTROCUTION
WARNING
All field wiring and components MUST be installed by a
licensed electrician and MUST comply with the applicable
legislation.
WARNING
If NOT factory installed, a main switch or other means for
disconnection, having a contact separation in all poles
providing full disconnection under overvoltage category III
condition, MUST be installed in the fixed wiring.
WARNING
▪ ONLY use copper wires.
▪ Make sure the field wiring complies with the applicable
legislation.
▪ All field wiring MUST be performed in accordance with
the wiring diagram supplied with the product.
▪ NEVER squeeze bundled cables and make sure they
do NOT come in contact with the piping and sharp
edges. Make sure no external pressure is applied to the
terminal connections.
▪ Make sure to install earth wiring. Do NOT earth the unit
to a utility pipe, surge absorber, or telephone earth.
Incomplete earth may cause electrical shock.
▪ Make sure to use a dedicated power circuit. NEVER
use a power supply shared by another appliance.
▪ Make sure to install the required fuses or circuit
breakers.
▪ Make sure to install an earth leakage protector. Failure
to do so may cause electric shock or fire.
▪ When installing the earth leakage protector, make sure
it is compatible with the inverter (resistant to high
frequency electric noise) to avoid unnecessary opening
of the earth leakage protector.
WARNING
▪ After finishing the electrical work, confirm that each
electrical component and terminal inside the electrical
components box is connected securely.
▪ Make sure all covers are closed before starting up the
unit.
NOTICE
Do NOT operate the unit until the refrigerant piping is
complete. Running the unit before the piping is ready will
break the compressor.
NOTICE
If the power supply has a missing or wrong N-phase,
equipment will break down.
NOTICE
Do NOT install a phase advancing capacitor, because this
unit is equipped with an inverter. A phase advancing
capacitor will reduce performance and may cause
accidents.
NOTICE
NEVER remove a thermistor, sensor, etc., when
connecting power wiring and transmission wiring. (If
operated without thermistor, sensor, etc., the compressor
may break down.)
NOTICE
▪ The reversed phase protection detector of this product
only functions when the product starts up.
Consequently reversed phase detection is not
performed during normal operation of the product.
▪ The reversed phase protection detector is designed to
stop the product in the event of an abnormality when
the product is started up.
▪ Replace 2 of the 3 phases (L1, L2, and L3) during
reverse-phase protection abnormality.