Panasonic WH-SDF03E3E5 Series Design Handbook page 91

Electrical connections for the monobloc systems
5 to 9 kW
(single phase)
12 to 16 kW
(single phase)
9 kW
(three phase)
12 to 16 kW
(three phase)
Differences of electrical connections for monobloc systems, different phases and nominal heating capacities.
Aquarea air / water heat pump – design handbook 07 / 2014
With the monobloc system, the mains connection is provided directly on the
monobloc unit. With the bi-bloc system the mains connection is provided on
the hydromodule, whereby the power supply of the outdoor unit is provided
via an additional connection between the hydromodule and outdoor unit.
An overview of the above-mentioned differences is depicted in the following
table. The required cross-sections can be derived from the technical data.
Additional electric heater and
Compact system
electric immersion heater
POWER SUPPLY 1 POWER SUPPLY 2
L N L N
L N L N
1 1
L N L N
1 1
Power supply 1 Power supply 2
Additional
Compact system electric heater
POWER SUPPLY 1 POWER SUPPLY 2
L N L N
L N L N
1 1
L N L N
1 1
Power supply 1 Power supply 2
Compact system and Electric
additional electric heater immersion heater
POWER SUPPLY 1 POWER SUPPLY 2
L L L N
A1 A2 A3
N L
L L L
A1 A2 A3
L L L N L
A1 A2 A3
Power supply 1 Power supply 2
Compact system Additional electric heater Electric immersion heater
POWER SUPPLY 1 POWER SUPPLY 3 POWER SUPPLY 2
L L L N L L L N L
A1 A2 A3 C1 C2 C3
L L L N L L L N L
A1 A2 A3 C1 C2 C3
L L L N L L L N L
A1 A2 A3 C1 C2 C3
Power supply 1 Power supply 3 Power supply 2
Electric
immersion heater
POWER SUPPLY 3
L N
L N
2 2
L N
2 2
Power supply 3
L N
N
N
N
N
N
Project Design
Electrical connection
Fault-current protective switch
Mains connections
Fault-current protective switch
Mains connections
Fault-current protective switch
Mains connections
Fault-current protective switch
Mains connections
Power supply
91