Daikin 3AMXF52A2V1B9, Installation Manual

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7 Electrical installation
Installation manual
14
3AMXF-A9, 3AMXF-A9, 3AMXM-N9
R32 Split series
3P600450-1R – 2022.05
NOTICE
Applicable legislation on fluorinated greenhouse gases
requires that the refrigerant charge of the unit is indicated
both in weight and CO
2
equivalent.
Formula to calculate the quantity in CO
2
equivalent
tonnes: GWP value of the refrigerant × total refrigerant
charge [in kg] / 1000
Use the GWP value mentioned on the refrigerant charge
label.
2 Fix the label on the inside of the outdoor unit near the gas and
liquid stop valves.
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 provides 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.
DANGER: RISK OF ELECTROCUTION
All electrical parts (including thermistors) are powered by
the power supply. Do NOT touch them with bare hands.
DANGER: RISK OF ELECTROCUTION
Disconnect the power supply for more than 10 minutes,
and measure the voltage at the terminals of main circuit
capacitors or electrical components before servicing. The
voltage MUST be less than 50 V DC before you can touch
electrical components. For the location of the terminals,
see the wiring diagram.
AC DC
DC
S20
S
21
S
22
S
23
S92
S93
S40
S80
S7
0
U
W
V
D
C
-
FU2
S9
0
S2
4
AL2 AL1
e
f
g
h
a
b
c
d
DC(-) FU2
a AL1, AL2 - solenoid valve lead wire connector*
b S20~24 - electronic expansion valve coil lead wire
connector (room A, B, C, D, E)*
c S40 – thermal overload relay lead wire and high pressure
switch connector*
d Multimeter (DC voltage range)
e S90~93 – thermistor lead wire connector
f S70 - fan motor lead wire connector
g S80 - 4-way valve lead wire connector
h Compressor lead wire connector
*May differ depending on the model.
7.1 Specifications of standard wiring
components
Component
Power supply
cable Voltage 220~240 V
Phase 1~
Frequency 50 Hz
Wire type 3- core cable 2.5 mm
2
H05RN-F (60245 IEC 57)
H07RN-F (60245 IEC 66)
3- core cable 4.0 mm
2
H07RN-F (60245 IEC 66)
Interconnection cable
(indoor↔outdoor) 4-core cable 1.5 mm
2
or
2.5 mm
2
and applicable for
220~240 V
H05RN-F (60245 IEC 57)
Recommended circuit breaker 20 A
Residual current device MUST comply with
applicable legislation
Electrical equipment must comply with EN/IEC 61000-3-12, the
European/International Technical Standard setting the limits for
harmonic currents produced by equipment connected to public low-
voltage systems with input current >16 A and ≤75 A per phase.
7.2 To connect the electrical wiring to
the outdoor unit
1 Remove the switch box cover (1 screw).