Electric Connections: Preliminary Safety Information - Immergas FH 25WZ Instruction And Warning Book

4.18 Electric connections: preliminary safety information

The electric panel is located inside the unit at the top of the technical compartment where the various components of the refrigerant circuit are also to be
found. To access the electrical board, remove the front panel of the unit:
Pipe for electrical
cables
Power connections must be made in accordance to the wiring diagram enclosed with the unit and in accordance to the norms
in force.
Make sure the power supply upstream of the unit is (blocked with a switch). Check that the main switch handle is padlocked
and it is applied on the handle a visible sign of warning not to operate.
It must be verified that electric supply is corresponding to the unit electric nominal data (tension, phases, frequency) reported
on the label in the front panel of the unit.
Power cable and line protection must be sized according to the specification reported on the form of the wiring diagram enclo-
sed with the unit.
The cable section must be commensurate with the calibration of the system-side protection and must take into account all the
factors that may influence (temperature, type of insulation, length, etc.).
Power supply must respect the reported tolerances and limits: If those tolerances should not be respected, the warranty will
be invalidated.
Flow switches must be connected following the indication reported in the wiring diagram. Never bridge flow switches connec-
tions in the terminal board. Guarantee will be invalidated if connections are altered or not properly made.
Make all connections to ground provided by law and legislation.
Before any service operation on the unit, be sure that the electric supply is disconnected.
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