Daikin RXQ5P7W1B Installation Manual Download

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RX(Y)Q5-10-1 RXQ RXYQ
RXYHQ1 RX(Y)Q14~18P7W1BA
VRVIII System air conditioner
4PW48461-1

Installation manual

When using residual current operated circuit breakers, be sure to use
a high-speed type 300 mA rated residual operating current.

Point for attention regarding quality of the public electric power
supply

This equipment complies with respectively:

■

EN/IEC 61000-3-11

(1)

provided that the system impedance Z

sys

is less than or equal to Z

max

and

■

EN/IEC 61000-3-12

(2)

provided that the short-circuit power S

is greater than or equal to the minimum S

value

at the interface point between the user's supply and the public
system. It is the responsibility of the installer or user of the equipment
to ensure, by consultation with the distribution network operator if
necessary, that the equipment is connected only to a supply with
respectively:

■

sys

less than or equal to Z

max

and

■

greater than or equal to the minimum S

value.

Be sure to install a main switch for the complete system.

8.4.

General cautions

■

Up to 3 units can be connected by crossover power source
wiring between outdoor units. However, units of smaller capacity
must be connected downstream. For details, refer to the
technical data.

■

When connecting several units in VRV combination, the power
supply of each outdoor unit can also be connected separately.
Refer to the field wiring on the engineering data book for further
details.

■

Make sure to connect the power source wire to the power
source terminal block and to clamp it as shown in

figure 21

and

described in chapter

"8.8. Field line connection: power wiring"

on page 17

■

For conditional connections, refer to the Technical Data.

■

As this unit is equipped with an inverter, installing a phase
advancing capacitor not only will deteriorate power factor
improvement effect, but also may cause capacitor abnormal
heating accident due to high-frequency waves. Therefore, never
install a phase advancing capacitor.

■

Keep power imbalance within 2% of the supply rating.
•

Large imbalance will shorten the life of the smoothing
capacitor.

•

As a protective measure, the product will stop operating and
an error indication will be made, when power imbalance
exceeds 4% of the supply rating.

■

Follow the "electrical wiring diagram" supplied with the unit when
carrying out any electrical wiring.

■

Only proceed with wiring work after all power is shut off.

■

Always ground wires. (In accordance with national regulations of
the pertinent country.)

■

Do not connect the ground wire to gas pipes, sewage pipes,
lightning rods, or telephone ground wires. This may cause
electric shock.
•

Combustion gas pipes: can explode or catch fire if there is a
gas leak.

•

Sewage pipes: no grounding effect is possible if hard plastic
piping is used.

•

Telephone ground wires and lightning rods: dangerous when
struck by lightning due to abnormal rise in electrical potential
in the grounding.

■

This unit uses an inverter, and therefore generates noise, which
will have to be reduced to avoid interfering with other devices.
The outer casing of the product may take on an electrical charge
due to leaked electrical current, which will have to be discharged
with the grounding.

■

Be sure to install an earth leakage breaker. (One that can
handle high-frequency electrical noise.)
(This unit uses an inverter, which means that an earth leakage
breaker capable of handling high-frequency electrical noise
must be used in order to prevent malfunctioning of the earth
leakage breaker itself.)

■

Earth leakage breakers that are especially designed for
protecting ground-faults must be used in conjunction with main
switch and fuse for use with wiring.

■

Never connect the power supply in reversed phase.
The unit can not operate normally in reversed phase. If you
connect in reversed phase, replace two of the three phases.

(1) European/International Technical Standard setting the limits for voltage changes,

voltage fluctuations and flicker in public low-voltage supply systems for equipment
with rated current

≤

75 A.

(2) 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.

max

(

Ω

)