Guidelines When Connecting The Electrical Wiring - Daikin BEV2 Installer's Reference Manual

8.1.2 Guidelines when connecting the electrical wiring

BEV2N-A
CO₂ Conveni-Pack: BEV2 unit
4P677928-1 – 2021.10
WARNING
▪
If the power supply has a missing or wrong N-phase, equipment might break
down.
▪
Establish proper earthing. Do NOT earth the unit to a utility pipe, surge absorber,
or telephone earth. Incomplete earthing may cause electrical shock.
▪
Install the required fuses or circuit breakers.
▪
Secure the electrical wiring with cable ties so that the cables do NOT come into
contact with sharp edges or piping, particularly on the high-pressure side.
▪
Use the included cables (in the box of the indoor unit) and make sure that there is
no strain on the terminal connections or wires. Improper connections or
improper securing of wires can cause overheating, electrical shock or fire.
▪
Do NOT use taped wires, stranded conductor wires, extension cords, or
connections from a star system. They can cause overheating, electrical shock or
fire.
Following symbols may occur on the indoor unit:
Symbol Explanation
Measure the voltage at the terminals of main circuit capacitors or
electrical components before servicing.
WARNING
Use an all-pole disconnection type breaker with at least 3 mm between the contact
point gaps that provide full disconnection under overvoltage category III.
WARNING
If the supply cord is damaged, it MUST be replaced by the manufacturer, its service
agent or similarly qualified persons in order to avoid a hazard.
WARNING
Keep the interconnection wiring away from copper pipes without thermal insulation
as such pipes will be very hot.
Keep the following in mind:
▪ If stranded conductor wires are used, install a round crimp-style terminal on the
end of the wire. Place the round crimp-style terminal on the wire up to the
covered part and fasten the terminal with the appropriate tool.
b a
a Stranded conductor wire
b Round crimp-style terminal
b
a
c
a Round crimp-style terminal
b Cut-out section
c Cup washer
8 Electrical installation
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Installer reference guide
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