Safety Device Requirements; Overview Of Electrical Connections For External And Internal Actuators - Daikin Altherma 3 WS EWSAH06UD 9W Series Installer's Reference Manual

9.1.4 Safety device requirements

9.2 Overview of electrical connections for external and internal
actuators
EWSAH/X06UD
Daikin Altherma 3 WS
4P675765-1 – 2022.04
(b) Normal operation: backup heater = maximum 3 kW
Emergency operation: backup heater = maximum 6 kW
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.
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)DA9W:
Power supply
1N~ 50 Hz
230 V
3N~ 50 Hz
380-415 V
Item
Power supply
Remote outdoor sensor
Shut-off valve
Electricity meter
Domestic hot water pump
Alarm output
Space cooling/heating
operation control
Changeover to external
heat source control
Power consumption digital
inputs
Safety thermostat
Low pressure switch on
central water loop
Minimum circuit ampacity
29 A
15.5 A
See "9.2.1 To connect the main power
4
supply" [ 91].
See "9.2.2 To connect the remote outdoor
4
sensor" [ 97].
See "9.2.3 To connect the shut-off
See "9.2.4 To connect the electricity
See "9.2.5 To connect the domestic hot water
4
pump" [ 100].
See "9.2.6 To connect the alarm
See "9.2.7 To connect the space cooling/heating ON/
4
OFF output" [ 102].
See "9.2.8 To connect the changeover to external
4
heat source" [ 104].
See "9.2.9 To connect the power consumption
4
digital inputs" [ 105].
See "9.2.10 To connect the safety thermostat
(normally closed contact)" [
See "9.2.11 To connect the brine low pressure
4
switch" [ 107].
9 Electrical installation
|
Recommended fuses
32 A
16 A
Description
4
valve" [ 98].
meters" [
4
output" [ 101].
4
106].
Installer reference guide
4
99].
89