14 Technical data
Installer reference guide
78
EWAQ+005BAVP
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P492900-1 – 2017.06
14.2
Wiring diagram: Outdoor unit
See the internal wiring diagram supplied with the unit (on the inside of the outdoor unit switch box cover). The abbreviations used are listed
below.
Outdoor unit: compressor module
C110~C112
Capacitor
DB1, DB2, DB401
Rectifier bridge
DC_N1, DC_N2
Connector
DC_P1, DC_P2
Connector
DCP1, DCP2,
Connector
DCM1, DCM2
Connector
DP1, DP2
Connector
E1, E2
Connector
E1H
Drain pan heater
FU1~FU5
Fuse
HL1, HL2, HL402
Connector
HN1, HN2, HN402
Connector
IPM1
Intelligent power module
L
Live
LED 1~LED 4
Indication lamps
LED A, LED B
Pilot lamp
M1C
Compressor motor
M1F
Fan motor
MR30, MR306,
MR307, MR4
Magnetic relay
MRM10, MRM20
Magnetic relay
MR30_A, MR30_B
Connector
N
Neutral
PCB1
Printed circuit board (main)
PCB2
Printed circuit board (inverter)
PCB3
Printed circuit board (service)
Q1DI
Earth leakage circuit breaker
Q1L
Overload protector
R1T
Thermistor (discharge)
R2T
Thermistor (heat exchanger)
R3T
Thermistor (air)
S1NPH
Pressure sensor
S1PH
High pressure switch
S2~S503
Connector
SA1
Surge arrestor
SHEET METAL
Terminal strip on fixed plate
SW1, SW3
Push buttons
SW2, SW5
DIP switches
U
Connector
V
Connector
V2, V3, V401
Varistor
W
Connector
X11A, X12A
Connector
X1M, X2M
Terminal strip
Y1E
Electronic expansion valve coil
Y1R
Reversing solenoid valve coil
Z1C~Z4C
Ferrite core
Field wiring
Terminal strip
Connector
Terminal
Protective earth
BLK
Black
BLU
Blue
BRN
Brown
GRN
Green
ORG
Orange
PPL
Purple
RED
Red
WHT
White
YLW
Yellow
Outdoor unit: hydro module
English
Translation
(1) Connection diagram
(1) Connection diagram
Compressor switch box
Compressor switch box
Control box
Control box
External outdoor ambient sensor
option
External outdoor ambient sensor
option
Hydro switch box supplied from
compressor module
Hydro switch box supplied from
compressor module
Hydro switch box
Hydro switch box
Indoor
Indoor
NO valve
Normal open valve
Normal kWh rate power supply
Normal kWh rate power supply
Only for normal power supply
(standard)
Only for normal power supply
(standard)
Only for preferential kWh rate
power supply (compressor)
Only for preferential kWh rate
power supply (compressor)
Outdoor
Outdoor
Preferential power supply
Preferential kWh rate power
supply
Use normal kWh rate power
supply for hydro switch box
Use normal kWh rate power
supply for hydro switch box
(2) Hydro switch box layout
(2) Hydro switch box layout
(3) Notes
(3) Notes
X4M
Main terminal
Earth wiring
15
Wire number 15
Field supply
1
Several wiring possibilities
Option
Wiring depending on model
Switch box
PCB
(4) Legend
(4) Legend
A1P
Main PCB
A2P
Current loop PCB
Q*DI
#
Earth leakage circuit breaker
R6T
*
External outdoor ambient sensor
option
