Daikin EWAA016DAV3P - Connections to the Outdoor Unit

9 | Electrical installation
Installer reference guide
78
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620242-1 – 2020.06
c Compressor module
d Hydro module
e Backup heater
S1S Preferential kWh rate power supply contact
Preferential kWh rate power supply WITH separate normal kWh rate power
supply
During preferential kWh rate power supply activation, power supply is interrupted
immediately or after some time by the electricity company. In this case, the hydro
module of the outdoor unit must be powered by a separate normal kWh rate
power supply.
dc
A
b
a1
b
e
B
5
8
0
1
5
0
0
0
a2
b
X5M/9+10
S1S
5
8
0
1
5
0
0
0
A Outdoor unit
B External backup heater kit
a1 Electrical cabinet: Normal kWh rate power supply
a2 Electrical cabinet: Preferential kWh rate power supply
b Overcurrent fuse
c Compressor module
d Hydro module
e Backup heater
S1S Preferential kWh rate power supply contact
9.2 Connections to the outdoor unit
Item Description
Power supply (main) See "To connect the main power supply"[481].
User interface See "To connect the user interface"[491].
Shut-off valve See "To connect the shut-off valve"[494].
Electricity meters See "To connect the electricity meters"[495].
Alarm output See "To connect the alarm output"[496].
Space cooling/heating
operation control
See "To connect the space cooling/heating ON/OFF
output"[496].
Changeover to external
heat source control
See "To connect the changeover to external heat
source"[497].
Power consumption digital
inputs
See "To connect the power consumption digital
inputs"[498].
Safety thermostat See "To connect the safety thermostat (normally
closed contact)"[499].
Smart Grid See "To connect a Smart Grid"[4100].
Backup heater kit + Bypass
valve kit
See "External backup heater kit"[484].