Daikin EWAA Series, Installation Manual, Page: 13 / 40

6 Electrical installation
Installation manual
13
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620240-1 – 2020.06
For other cases the minimum insulation thickness can be determined
using the Hydronic Piping Calculation tool.
The Hydronic Piping Calculation tool is part of the Heating Solutions
Navigator
which can be reached via https://
professional.standbyme.daikin.eu .
Please contact your dealer if you have no access to Heating
Solutions Navigator.
This recommendation ensures good operation of the unit, however,
local regulations may differ and shall be followed.
6 Electrical installation
DANGER: RISK OF ELECTROCUTION
WARNING
Rotating fan. Before powering ON the outdoor unit, make
sure that the discharge grille covers the fan as protection
against a rotating fan. See
"4.2.4 To install the discharge
grille" [
4
9].
WARNING
ALWAYS use multicore cable for power supply cables.
CAUTION
Do NOT push or place redundant cable length in the unit.
NOTICE
The distance between the high voltage and low voltage
cables should be at least 50 mm.
6.1 About electrical compliance
Only for EWAA011~016DAV3P, EWAA011~016DAV3P-H-,
EWYA009~016DAV3P and EWYA009~016DAV3P-H-
Equipment complying with EN/IEC 61000‑3‑12 (European/
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.).
6.2 Guidelines when connecting the
electrical wiring
Tightening torques
Item Tightening torque (N•m)
X1M 2.45 ±10%
X2M 0.88 ±10%
X3M 0.88 ±10%
X4M 2.45 ±10%
X5M 0.88 ±10%
X9M 2.45 ±10%
X10M 0.88 ±10%
6.3 Connections to the outdoor unit
Item Description
Power supply (main) See "6.3.2 To connect the main power
supply" [
4
14].
User interface See "6.3.3 To connect the user
interface" [
4
16].
Shut-off valve See "6.3.4 To connect the shut-off
valve" [
4
17].
Item Description
Electricity meters See "6.3.5 To connect the electricity
meters" [
4
17].
Alarm output See "6.3.6 To connect the alarm
output" [
4
18].
Space cooling/heating
operation control See "6.3.7 To connect the space cooling/
heating ON/OFF output" [
4
18].
Changeover to
external heat source
control See "6.3.8 To connect the changeover to
external heat source" [ 4 19].
Power consumption
digital inputs See "6.3.9 To connect the power
consumption digital inputs" [
4
19].
Safety thermostat See "6.3.10 To connect the safety
thermostat (normally closed
contact)"
[
4
19].
Smart Grid See "6.3.11 To connect a Smart
Grid" [
4
20].
Backup heater kit +
Bypass valve kit See "6.3.12 External backup heater
kit" [
4
21].
Room thermostat
(wired or wireless) In case of wireless room
thermostat
, see:
▪ Installation manual of the wireless
room thermostat
▪ Addendum book for optional
equipment
In case of wired room thermostat ,
see:
▪ Installation manual of the wired
room thermostat
▪ Addendum book for optional
equipment
Wires: 0.75 mm²
Maximum running current: 100 mA
For the main zone:
▪ [2.9] Control
▪ [2.A]
Thermostat type
For the additional zone:
▪ [3.A]
Thermostat type
▪ [3.9] (read-only) Control
Remote outdoor
sensor See:
▪ Installation manual of the remote
outdoor sensor
▪ Addendum book for optional
equipment
Wires: 2×0.75 mm²
[9.B.1]=1 ( External sensor =
Outdoor )
[9.B.2] Ext. amb. sensor offset
[9.B.3]
Averaging time
Remote indoor sensor See:
▪ Installation manual of the remote
indoor sensor
▪ Addendum book for optional
equipment
Wires: 2×0.75 mm²
[9.B.1]=2 ( External sensor = Room )
[1.7] Room sensor offset