Daikin CVXM20A2V1B, Installation Manual

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8 Finishing the indoor unit installation
Installation manual
10
FVXM25~50A2V1B
Split system air conditioners
3P477070-2H – 2020.06
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
10].
7.3 To connect optional accessories
(wired user interface, central user
interface, wireless adapter, etc.)
1 Remove the electrical wiring box cover. See "5.2 Opening the
indoor unit" [
4
4].
2 Connect the optional adapter wire to the S21 connector. To
connect the optional adapter wire to the option, refer to the
installation manual of the optional adapter.
3 Lead the wire as shown in the figure below.
a
b
a S21connector
B Optional adapter wire
4 Close the electrical wiring box cover. See "8.2 To close the
indoor unit" [
4
11].
8 Finishing the indoor unit
installation
8.1 To finish the indoor unit
installation
1 After the drain piping, refrigerant piping and the electrical wiring
are finished. Wrap the refrigerant pipes and the interconnection
cable with insulation tape. Overlap at least half the width of the
tape with each turn.
a
b
c
d
e
f
a Interconnection cable
b Gas pipe
c Gas pipe insulation
d Insulation tape
e Liquid pipe
f Liquid pipe insulation
2 Pass the pipes through the wall hole and seal the gaps with
putty.