Daikin FVXM25A2V1B, Installation Manual

Page: 10 / 16

7 Electrical installation
Installation manual
10
C FVXM25~50A
Split system air conditioners
3P477070-2M – 2021.09
6.2 Connecting the refrigerant piping
DANGER: RISK OF BURNING/SCALDING
6.2.1 To connect the refrigerant piping to the
indoor unit
WARNING: MILDLY FLAMMABLE MATERIAL
The refrigerant inside this unit is mildly flammable.
▪ Pipe length . Keep refrigerant piping as short as possible.
1 Connect refrigerant piping to the unit using flare connections .
2 Insulate the refrigerant piping on the indoor unit as follows:
a
b
c
d
a Gas pipe
b Gas pipe insulation
c Liquid pipe
d Liquid pipe insulation
NOTICE
Make sure to insulate all refrigerant piping. Any exposed
piping might cause condensation.
3 Close the slit on the refrigerant pipe connection and secure it
with a tape (field supply). Make sure there are no gaps.
4 Wrap the slit and the end of the insulation of the connected
refrigerant piping with insulation piece (accessory). Make sure
there are no gaps.
a
b
a
a
e
b
e
c
b
a
d
c
d
b
a Refrigerant pipe connection
b Refrigerant piping (field supply)
c Slit
d Tape
e Insulation piece (accessory)
7 Electrical installation
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
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
Do NOT connect the power supply to the indoor unit. This
could result in electrical shock or fire.
WARNING
▪ Do NOT use locally purchased electrical parts inside
the product.
▪ Do NOT branch the power supply for the drain pump,
etc. from the terminal block. This could result in
electrical shock or fire.
WARNING
Keep the interconnection wiring away from copper pipes
without thermal insulation as such pipes will be very hot.
7.1 Specifications of standard wiring
components
Component
Interconnection cable
(indoor↔outdoor) 4-core cable
1.5 mm²~2.5 mm²
and applicable for
220~240 V
H05RN-F (60245 IEC 57)
7.2 To connect the electrical wiring to
the indoor unit
1 Open the terminal block. See "5.2 Opening the indoor unit" [
4
4].
2 Strip the wire ends approximately 15 mm.
3 Match wire colours with terminal numbers on indoor and
outdoor unit’s terminal blocks and firmly screw wires to the
corresponding terminals.
4 Connect the earth wires to the corresponding terminals.
a
b
c
a Terminal block
b Electrical component block
c Cable clamp
5 Pull the wires to make sure that they are securely attached,
then retain the wires with the cable clamp.
6 Make sure that the wires do not come in contact with the metal
parts of the heat exchanger.
7 In case of connecting to an optional adapter, see "7.3 To
connect optional accessories (wired user interface, central user
interface, wireless adapter, etc.)"
[
4
11].