92
Aquarea air / water heat pump – design handbook 07 / 2014
Project Design
Electrical connection
Power supply
Phase-out models
Electrical connections for the bi-bloc systems
7 to 9 kW
(single phase)
POWER SUPPLY 1
N
L
POWER SUPPLY 2
N
L
Additional electric heater and
electric immersion heater
Hydro module and
outdoor unit
L N
L N
Power supply 1
Power supply 2
L N
L N
Connecting the indoor/outdoor unit
1 2 3
1 2 3
Fault-current
protective switch
Mains connections
12 to 16 kW
(single phase)
POWER SUPPLY 3
N
L
POWER SUPPLY 1
N
L
POWER SUPPLY 2
N
L
Electric
immersion heater
Additional
electric heater
Hydro module and
outdoor unit
L N
L N
Power supply 3
L N
L N
Power supply 1
L N
L N
Power supply 2
Connecting the indoor/outdoor unit
1 2 3
1 2 3
Fault-current
protective switch
Mains connections
9 kW
(three phase)
POWER SUPPLY 2
POWER SUPPLY 1
L
A1
L
A2
L
A3
N
N
L
4
5
Electric
immersion heater
Hydro module, outdoor unit
and additional electric heater
L N
L N
Power supply 2
L
A1
L
A2
L
A3
N
L
A1
L
A2
L
A3
N
Power supply 1
Connecting the indoor/outdoor unit
1 2 3 4 5
1 2 3 4 5
Fault-current
protective switch
Mains connections
12 to 16 kW
(three phase)
POWER SUPPLY 3
L
C1
L
C2
L
C3
N
POWER SUPPLY 2
POWER SUPPLY 1
L
A1
L
A2
L
A3
N
N
L
4
5
L
C1
L
C2
L
C3
N
L
C1
L
C2
L
C3
N
Power supply 3
Additional
electric heater
Electric
immersion heater
Hydro module
and outdoor unit
L N
L N
Power supply 2
L
A1
L
A2
L
A3
N
L
A1
L
A2
L
A3
N
Power supply 1
Connecting the indoor/outdoor unit
1 2 3 4 5
1 2 3 4 5
Fault-current
protective switch
Mains connections
Bi-Bloc systems (phase-out models) have different electrical connections, a different number of phases and different rated
heating power