Daikin EWAA Series, Руководство по установке, Страница: 21 / 40

6 Electrical installation
Installation manual
21
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620240-1 – 2020.06
a
b
c
d
e
K1A K2A
X10M
×2
×4
K1A, K2A Relays
X10M Terminal block
a Screws for X10M
b Screws for K1A and K2A
c Sticker to put on the high voltage wires
d Wires between the relays and X5M (AWG22 ORG)
e Wires between the relays and X10M (AWG18 RED)
9 10 5 6
X5M
K1A K2A
X10M
1
2
3
4
b
b
b
b
a
a
2 Connect the low voltage wiring as follows:
X5M.4
X5M.3
S4S
S4S Smart Grid pulse meter
3 4 1314
X5M
3 Connect the high voltage wiring as follows:
L
N
L
N
a
b
X10M.1
X10M.2
X10M.3
X10M.4
a, b Smart Grid high voltage contacts
X10M
1
2
3
4
4 Fix the cables with cable ties to the cable tie mountings. If
necessary, bundle excessive cable length with a cable tie.
6.3.12 External backup heater kit
For reversible models, you can install the external backup heater kit
(EKLBUHCB6W1).
If you do so, then under certain conditions you also need to install a
bypass valve kit (EKMBHBP1).
See:
▪ "To connect the backup heater kit" [ 4 21]
▪ "Bypass valve kit necessity" [
4
23]
▪ "To connect the bypass valve kit" [
4
24]
To connect the backup heater kit
The installation of the external backup heater kit is described in the
installation manual of the kit. However, certain parts of it are
superseded by the information described here. It concerns the
following:
▪ To connect the backup heater kit power supply
▪ To connect the backup heater kit to the outdoor unit
Wires: See installation manual of the backup heater kit
[9.3] Backup heater
To connect the backup heater kit power supply
CAUTION
To guarantee the unit is completely earthed, always
connect the backup heater power supply and the earth
cable.
WARNING
The backup heater MUST have a dedicated power supply
and MUST be protected by the safety devices required by
the applicable legislation.