Electrical Installation; About Electrical Compliance; Safety Device Requirements; Overview Of Electrical Connections For External And Internal Actuators - Daikin Altherma 3 WS EWSAH06UD Series Installation Manual

6

Electrical installation

DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
WARNING
If the supply cord is damaged, it MUST be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
CAUTION
Do NOT push or place redundant cable length into the unit.
NOTICE
The distance between the high voltage and low voltage
cables should be at least 50 mm.
6.1

About electrical compliance

For the models EWSAH/X06(U)D▲9W▼, the following statement...
Equipment complying with
International Technical Standard setting the limits for harmonic
currents produced by equipment connected to public low-voltage
systems with input current >16 A and ≤75 A per phase.).
...is valid in the following cases:
(a)
# Power supply
1 Combined power supply
(1N~, 50 Hz, 230 V AC)
C1
1N~, 50 Hz,
230 V AC
2 Split power supply
(2×(1N~, 50 Hz, 230 V AC))
1N~, 50 Hz,
230 V AC
C5
C1
1N~, 50 Hz,
230 V AC
(a)
For details of C1 and C5, see
supply" [ 4 16].
(b)
Normal operation: backup heater = maximum 3 kW
Emergency operation: backup heater = maximum 6 kW
6.2

Safety device requirements

Power supply
The power supply must be protected with the required safety
devices, i.e. a main switch, a slow blow fuse on each phase and an
earth leakage protector in accordance with the applicable legislation.
EWSAH/X06UD
Daikin Altherma 3 WS
4P675760-1C – 2023.02
EN/IEC 61000‑3‑12 (European/
(b)
Operation
Normal or emergency
Emergency
"6.4 To connect the main power
Selection and sizing of the wiring should be done in accordance with
the applicable legislation based on the information mentioned in the
table below.
Make sure that a separate power supply circuit is provided for this
unit and that all electrical work is carried out by qualified personnel
according to local laws and regulations and this manual. An
insufficient power supply capacity or improper electrical construction
may lead to electric shocks or fire.
For EWSAH/X06(U)D▲9W▼:
Power supply Minimum circuit
ampacity
1N~ 50 Hz 29 A
230 V
3N~ 50 Hz 15.5 A
380-415 V
6.3 Overview of electrical connections
for external and internal actuators
Item
Power supply See "6.4 To connect the main power
supply" [ 4 16].
Remote outdoor See "6.5 To connect the remote outdoor
sensor" [ 4 19].
sensor
Shut-off valve See "6.6 To connect the shut-off
valve" [ 4 19].
Electricity meter See "6.7 To connect the electricity
meters" [ 4 20].
Domestic hot water See "6.8 To connect the domestic hot water
pump" [ 4 20].
pump
Alarm output See "6.9 To connect the alarm
output" [ 4 21].
Space cooling/heating See "6.10 To connect the space cooling/
operation control heating ON/OFF
Changeover to See "6.11 To connect the changeover to
external heat source external heat
control
Power consumption See "6.12 To connect the power
digital inputs consumption digital
Safety thermostat See "6.13 To connect the safety thermostat
(normally closed
Low pressure switch See "6.14 To connect the brine low
on central water loop pressure
Thermostat for passive See "6.15 To connect the thermostat for
cooling passive
LAN adapter See "6.16 LAN
connections
6 Electrical installation
Recommended
fuses
32 A
16 A
Description
output" [ 4 21].
source" [ 4 22].
inputs" [ 4 23].
contact)" [ 4 23].
switch" [ 4 24].
cooling" [ 4 24].
adapter" [ 4 25].
Installation manual
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