6 Electrical installation
Installation manual
20
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620240-1 – 2020.06
1314
X5M
1314
X5M
a
a
Remove jumper
3
Fix the cable with cable ties to the cable tie mountings.
NOTICE
Make sure to select and install the safety thermostat
according to the applicable legislation.
In any case, to prevent unnecessary tripping of the safety
thermostat, we recommend the following:
▪ The safety thermostat is automatically resettable.
▪ The safety thermostat has a maximum temperature
variation rate of 2°C/min.
NOTICE
Error.
If you remove the jumper (open circuit) but do NOT
connect the safety thermostat, stop error 8H-03 will occur.
6.3.11
To connect a Smart Grid
This topic describes 2 possible ways to connect the outdoor unit to a
Smart Grid:
▪ In case of low voltage Smart Grid contacts
▪ In case of high voltage Smart Grid contacts
This requires the installation of the Smart Grid relay kit
(EKRELSG).
In case of low voltage Smart Grid contacts
Wires (Smart Grid pulse meter): 0.5 mm²
Wires (low voltage Smart Grid contacts): 0.5 mm²
[9.8.4]=3 (
Benefit kWh power supply
=
Smart grid
)
[9.8.5]
Smart grid operation mode
[9.8.6]
Allow electrical heaters
[9.8.7]
Enable room buffering
[9.8.8]
Limit setting kw
The wiring of the Smart Grid in case of low voltage contacts is as
follows:
14
13
S11S
6
5
S4S
4
3
X5M
S10S
10
9
a
a
Jumper (factory-mounted). If you also connect a safety
thermostat (Q4L), replace the jumper with the safety
thermostat wires.
S4S
Smart Grid pulse meter
S10S , S11S
Low voltage Smart Grid contacts
1
Open the service cover. See
9].
2
Connect the wiring as follows:
X5M.4
X5M.3
S4S
X5M.10
X5M.9
S10S
X5M.6
X5M.5
S11S
X5M
3 4 5 6 9 10 1314
3
Fix the cables with cable ties to the cable tie mountings.
In case of high voltage Smart Grid contacts
Wires (Smart Grid pulse meter): 0.5 mm²
Wires (high voltage Smart Grid contacts): 1 mm²
[9.8.4]=3 (
Benefit kWh power supply
=
Smart grid
)
[9.8.5]
Smart grid operation mode
[9.8.6]
Allow electrical heaters
[9.8.7]
Enable room buffering
[9.8.8]
Limit setting kw
The wiring of the Smart Grid in case of high voltage contacts is as
follows:
S4S
3
4
X5M
X5M
13
14
K2A
K1A
5
6
9
10
K1A
L
N
L
N
STEP 3
a
b
c
d
e
f
g
h
STEP 1
STEP 2
A1
A2
4
3
2
1
X10M
K2A
A1
A2
STEP 1
Smart Grid relay kit installation
STEP 2
Low voltage connections
STEP 3
High voltage connections
a, b
High voltage Smart Grid contacts
c, d
Coil sides of relays
e, f
Contact sides of relays
g
Jumper (factory-mounted). If you also connect a safety
thermostat (Q4L), replace the jumper with the safety
thermostat wires.
h
Smart Grid pulse meter
1
Install the components of the Smart Grid relay kit as follows: