Daikin RXQ18P7W1BA Installation Manual download pdf (Page 19)

RX(Y)Q5-10-12P7W1B + RXQ8P7W1B + RXYQ8P8W1B +

RXYHQ12P8W1B + 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:

■ Z

sys

less than or equal to Z

max

and

■ S

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)

Minimum S

value

RX(Y)Q5 ——

RX(Y)Q8 — 1218 kVA

RX(Y)Q10 0.27 928 kVA

RX(Y)Q12 0.27 944 kVA

RX(Y)Q14 0.24 1114 kVA

RX(Y)Q16 0.24 1114 kVA

RX(Y)Q18 0.24 1171 kVA

RXYQ20

= RXYQ8 + RXYQ12

0.27 2162 kVA

RXYQ22

= RXYQ10 + RXYQ12

0.25 1872 kVA

RXYQ24

= RXYQ12 + RXYQ12

0.25 1888 kVA

RXYQ26

= RXYQ8 + RXYQ18

0.24 2389 kVA

RXYQ28

= RXYQ10 + RXYQ18

0.23 2099 kVA

RXYQ30

= RXYQ12 + RXYQ18

0.23 2115 kVA

RXYQ32

= RXYQ14 + RXYQ18

0.22 2284 kVA

RXYQ34

= RXYQ16 + RXYQ18

0.22 2284 kVA

RXYQ36

= RXYQ18 + RXYQ18

0.22 2342 kVA

RXYQ38

= RXYQ8 + RXYQ12 + RXYQ18

0.23 3333 kVA

RXYQ40

= RXYQ10 + RXYQ12 + RXYQ18

0.22 3043 kVA

RXYQ42

= RXYQ12 + RXYQ12 + RXYQ18

0.22 3059 kVA

RXYQ44

= RXYQ8 + RXYQ18 + RXYQ18

0.22 3560 kVA

RXYQ46

= RXYQ10 + RXYQ18 + RXYQ18

0.22 3270 kVA

RXYQ48

= RXYQ12 + RXYQ18 + RXYQ18

0.22 3286 kVA

RXYQ50

= RXYQ14 + RXYQ18 + RXYQ18

0.22 3455 kVA

RXYQ52

= RXYQ16 + RXYQ18 + RXYQ18

0.22 3455 kVA

RXYQ54

= RXYQ18 + RXYQ18 + RXYQ18

0.22 3513 kVA

max

(Ω)

Minimum S

value

RXYHQ12 0.27 1114 kVA

RXYHQ16

= RXYQ8 + RXYQ8

— 2436 kVA

RXYHQ18

= RXYQ8 + RXYQ10

0.27 2146 kVA

RXYHQ20

= RXYQ8 + RXYHQ12

0.27 2332 kVA

RXYHQ22

= RXYQ10 + RXYHQ12

0.25 2042 kVA

RXYHQ24

= RXYQ8 + RXYQ8 + RXYQ8

— 3654 kVA

RXYHQ26

= RXYQ8 + RXYQ8 + RXYQ10

0.27 3364 kVA

RXYHQ28

= RXYQ8 + RXYQ10 + RXYQ10

0.25 3074 kVA

RXYHQ30

= RXYQ8 + RXYQ10 + RXYHQ12

0.25 3260 kVA

RXYHQ32

= RXYQ8 + RXYHQ12 + RXYHQ12

0.25 3446 kVA

RXYHQ34

= RXYQ10 + RXYHQ12 + RXYHQ12

0.24 3156 kVA

RXYHQ36

= RXYHQ12 + RXYHQ12 + RXYHQ12

0.24 3342 kVA

NOTE

■ Select the power supply cable in accordance with

relevant local and national regulations.

■ Wire size must comply with the applicable local

and national code.

■ Speciﬁcations for local wiring power cord and

branch wiring are in compliance with IEC60245.

■ WIRE TYPE H05VV(*)

*Only in protected pipes (use H07RN-F when

protected pipes are not used).

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Daikin RXQ18P7W1BA Installation Manual Page 19

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