7. Electrical installation
Installer reference guide / Mono tank integrated type
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7.1. Precaution
Precautions when connecting the electrical wiring
WARNING
• Make sure first the water piping is connected before the electrical wiring work.
• When removing or relocating the equipment, power off first and then disconnect the electrical wiring.
• Connect the air to water heat pump to a protected earth (PE) before connecting the phase and neutral to
the product.
• Follow the local installation standards and regulations when installing electrical wiring. Electrical wiring
should be installed by a certified electrician or certified installer.
Failing to comply, might lead to damaging the product, starting a fire and personal injury, electrocution
or death.
• Make sure that wiring work must be done by an authorized electrician.
The wiring materials and wiring work must comply with the applicable legislation.
• Always verify that a suitable grounding connection is available.
• Verify that the voltage and frequency of the power supply comply with the specifications and that the installed power
is sufficient to ensure the operation of any other domestic appliance connected to the same electric lines.
• Always verify that the cut-off and protection switches are suitably dimensioned.
• Verify that the air to water heat pump is connected to the power supply in accordance with the instructions provided
in the wiring diagram included in the manual.
• Always verify that electric connections (cable entry, the section of leads, protections…) comply with the electric
specifications, local regulations and installation standards 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.
• Depending on the condition of power supply, unstable power or voltage may cause malfunction of the parts or control
system. (Avoid using power supply from electric generator, like on a ship etc).
CAUTION
• Make sure that you earth the cables.
– Do not connect the earth wire to the gas pipe, water pipe, lighting rod or telephone wire. If earthing is not
complete, electric shock or fire may occur.
• Install the circuit breaker.
– Failing to install a circuit breaking device may result in electric shock and fire occurrence.
• Install the power cable and communication cable of the indoor and outdoor unit according IEC 60364-1
(Electrical installations and protection against electric shock).
• Be sure to install both an earth leakage detector and circuit breaker with specified capacity in accordance
with relevant local and national regulations.
– If it is not installed properly, it may cause electric shocks and fire.
