Daikin LRLEQ3BY1, Installation And Operation Manual

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5 Installation
Installation and operation manual
20
LRMEQ+4BY1
Air-cooled refrigeration condensing unit
4P545024-1 – 2018.09
NOTICE
In Europe, the greenhouse gas emissions of the total
refrigerant charge in the system (expressed as tonnes CO
2
equivalent) is used to determine the maintenance intervals.
Follow the applicable legislation.
Formula to calculate the greenhouse gas emissions:
GWP value of the refrigerant × Total refrigerant charge [in
kg] / 1000
2 Fix the label on the inside of the outdoor unit near the gas and
liquid stop valves.
5.7 Connecting the electrical wiring
5.7.1 Field wiring: Overview
Field wiring consists of the following:
P1 P2 W1 C C1 R
X3M
X1M
L2 N L1 L3
B
X2M
A D C F1 F2
3D111889
A
e
c
a
b
i j
k
h
f
t°
H1P
S2T
E1H
t°
K1M
S1T
Y1S
Ry 0
S2T
NC
TeS1
No
T1
T1
E1H
t°
Ry0
t°
Ry 1
K1M
S1T
H1P
Ry 0
Ry 0
K1M
Ry 0
Ry 0
Ry 0
K1M
Ry 1
Y1S
b
d
B
B
b
b
g
A Outdoor unit
B Indoor unit
a To outdoor unit
b Earth leakage circuit breaker
c High voltage wiring intake
d Control board (field supply)
e Caution signal
f Warning signal
g Run signal
h Operation signal
i Earth
j Remote operation switch
k OFF: normal mode
ON: low-noise mode
T1 Timer
RY0, RY1 Relay
H1P Defrost indicator
K1M Contactor defrost heater
E1H Defrost heater
S1T Inner temperature adjustment thermostat
S2T Defrost completion thermostat
Y1S Solenoid valve
3N~ 50 Hz
380-415 V
L1 L2 L3
L1 L2 L3
N
X1M
a
d e
g h i j
f
b
c
B A C F1 F2
X2M X3M
D C C1 W1 R P1 P2
a Earth leakage circuit breaker
b Fuse
c Power supply (including earth) (sheathed cable)
d Low-noise switch
e Remote operation switch
f Transmission
g Caution signal
h Warning signal
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.