7. Electrical installation
Installer reference guide / Mono tank integrated type
105
To expand the backup heater capacity
• The wiring of the backup heater is connected from the factory. (default: 2kW)
• The backup heater is also available in: 4
k
W or 6kW.
WARNING
• Disconnect all electric power before servicing.
Follow procedures as described in EN 50110-1:2013 to ensure the power cannot be unintentionally
energized. Failure to disconnect power before servicing could result in death or serious injury.
• The backup heater must be protected by safety devices as required by the applicable legislation.
Before installing the optional backup heater, always check if the connected circuit breaker and power
cable thickness are according to the specifications and applicable legislation.
If not installed according to specifications, safety problems may occur.
• Before installing the backup heater, drain the water using the drain port at the bottom of the pipe.
Connection of the backup heater supply
Model
Capacity [kW]
Power Supply
Current [A]
Φ
Wires
Hz
Voltage
MCA
MFA
MHC-400FE
4kW
1
2
50
220~240
31.4
40.0
MHC-600FE
6kW
40.1
50.2