10
Connecting the accessories
The electrical accessories are connected to the numbered terminals
on the control terminal block as shown on the control wiring diagram.
Power wiring diagram
• For the mono phase model
(In top of the page 11)
• For the tri phase model
(In bottom of the page 11)
Electrical safety devices
• The boiler must be effectively earthed.
• A box fitted with a magneto-thermal circuit breaker must be fitted on
the outside of the boiler. This is to protect the boiler and allow the
power supply to be switched off during servicing or other work on
the boiler.
First make sure that the system complies with all
current standards.
• To avoid any risk of electrocution, the electrical circuit must be
fitted with a differential circuit breaker.
• The control circuit is protected by a magneto-thermal circuit breaker.
Compliance
The installation must be carried out in accordance with the current
local technical standards and legislation.
Electrical terminal block
INSTALLATION
Power
terminal
block
Calibrator
relay
Control
terminal
block
Magneto-therminal
circuit breaker
Power
Switches
