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: 4kW 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
e
nergized. 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
c
able 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]
Wires Hz Voltage MCA MFA
MHC-400FE 4kW
1 2 50 220~240
31.4 40.0
MHC-600FE 6kW 40.1 50.2
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