6 Electrical Installation
The heat pump is connected internally at the factory, for this reason electrical installation consists mainly of the connection of the power
supply.
Danger Hazardous electrical voltage! The terminal blocks are live and can
cause death through electric shock. All power supplies must be isola-
ted before electrical installation is started. The heat pump is connec-
ted internally at the factory, for this reason electrical installation con-
sists primarily of the connection of the power supply.
Danger Electrical voltage!
The terminal blocks are live and can be highly dangerous.
All power supplies must be switched off before the electrical installa-
tion is started.
Warning The electrical installation may only be carried out by an authorized
electrician and must follow applicable local and national regulations.
Warning The power cable may only be connected to the terminal block inten-
ded for this purpose.
No other terminal blocks may be used!
Caution The electrical installation must be carried out using permanently rout-
ed cables and must follow applicable local and national regulations.
Isolate the power supply using an all-pole circuit breaker with a mini-
mum contact gap of 3 mm. (The maximum load for externally connec-
ted units is 2A).
Verify that the voltage and frequency of the power supply comply
with the specifications and input power is sufficient to ensure the op-
eration of any other domestic appliance connected to the same elec-
tric lines. Always verify that the cut-off and protection switches are
suitably selected.
Always verify that electric connections (cable entry, section of leads,
protections…) are compliant with the electric specifications and with
the instructions provided in the wiring scheme. Always verify that all
connections comply with the standards applicable to the installation
of air to water heat pumps. Devices disconnected from the power sup-
ply should be completely disconnected in the condition of overvolt-
age category.
Installation Guide iTec XT
Thermia AB AWIXT01IG0102
43
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