10 Technical data
Installation manual
21
EKHWET90~120BAV3
R32 Split series – Domestic hot water tank
4P680074-1 – 2021.11
10.2
Wiring diagram: Indoor unit
See the internal wiring diagram supplied with the unit (on the inside of the indoor unit switch box cover). The abbreviations used are listed
below.
Legend
A1P
Main PCB
F2B
# Overcurrent fuse booster heater
FU1 (A1P)
Fuse (5 A 250 V for PCB)
K3M
Contactor booster heater
Q1DI
# Earth leakage circuit breaker
TR1
Power supply transformer
X4M
# Booster heater power supply terminal strip
client
X8M
Booster heater power supply terminal strip
X*, X*A, X*B
Connector
X*M
Terminal strip
*
Optional
#
Field supply
Translation of text on wiring diagram
English
Translation
(1) Connection diagram
(1) Connection diagram
Compressor switch box
Compressor switch box
Multi+DHW Tank switch box
Multi domestic hot water tank
switch box
Indoor
Indoor
Outdoor
Outdoor
SWB
Switch box
(2) Legend
(2) Legend
A1P
Main PCB
F2B
Overcurrent fuse booster heater
FU1 (A1P)
fuse (5 A 250 V for PCB)
K3M
Contactor booster heater
Q1DI
Earth leakage circuit breaker
TR1
Power supply transformer
X4M
Booster heater power supply
terminal strip client
X8M
Booster heater power supply
terminal strip
X*, X*A, X*B
Connector
X*M
Terminal strip
(3) Notes
(3) Notes
X1M, X2M
Field wiring terminal for AC
X4M
Booster heater power supply
terminal strip client
X5M
Field wiring terminal for DC
X8M
Booster heater power supply
terminal strip
Earth wiring
Field supply
Option
Not mounted in switch box
Wiring depending on model
PCB
Note 1: Connection point of the
power supply for the BSH should
be foreseen outside the unit
Note 1: Connection point of the
power supply for the booster
heater should be foreseen
outside the unit.
(4) Switch box layout
(4) Switch box layout
SWB
Switch box
Summary of Contents for EKHWET90BAV3
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