Daikin RXQ18P7W1BA Installation Manual download pdf (Page 20)

Installation manual

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

RXYHQ12P8W1B + RX(Y)Q14~18P7W1BA

VRVIII System air conditioner

4PW48461-1

■ This unit has a reverse phase detection circuit. (If it is activated,

only operate the unit after correcting the wiring.)

■ Power supply wires must be attached securely.

■ If the power supply has a missing or wrong N-phase, equipment

will break down.

■ Make sure that all wiring is secure, the speciﬁed wires are used,

and no external forces act on the terminal connection or wires.

■ Improper connections or installation may result in ﬁre.

■ When wiring the power supply and connecting the remote

controller wiring and transmission wiring, position the wires so

that the control box lid can be securely fastened.

Improper positioning of the control box lid may result in electric

shocks, ﬁre, or overheating of the terminals.

8.5. System examples

(See ﬁgure 15)

8.6. Leading power line and transmission line

■ Be sure to let the power line and the transmission line pass

through a conduit hole.

■ Lead the power line from the upper hole on the left side plate,

from the front position of the main unit (through the conduit hole

of the wiring mounting plate) or from a knock out hole to be

made in the unit's bottom plate. (See ﬁgure 18)

Precautions when knocking out knockout holes

■ To punch a knockout hole, hit on it with a hammer.

■ After knocking out the holes, we recommend you paint the

edges and areas around the edges using the repair paint to

prevent rusting.

■ When passing electrical wiring through the knockout holes,

remove any burrs from the knockout hole edges. Wrap the wiring

with protective tape in order to prevent damage to the wires, put

the wires through ﬁeld supplied protective wire conduits at that

location, or install suitable ﬁeld supplied wire nipples or rubber

bushings into the knockout holes.

1 Field power supply

2 Main switch

3 Earth leakage breaker

4 Outdoor unit

5 Indoor unit

6 Remote controller

Power supply wiring (sheathed cable) (230 V)

Transmission wiring (sheathed cable) (16 V)

1 Electric wiring diagram. Printed on the back of the electric box lid.

2 Power wiring and ground wiring between outdoor units (inside

conduit)

(When the wiring is routed out through the lateral panel.)

3 Transmission wiring

4 Pipe opening

5 Conduit

6 Power wiring and ground wiring

7 Cut off the shaded zones before use.

8 Through cover

1 Knockout hole

2 Burr

3 If there are any possibilities that small animals enter the system

through the knockout holes, plug the holes with packing materials

(to be prepared on-site).

■ Use a power wire pipe for the power wiring.

■ Outside the unit, make sure the weak low voltage

electric wiring (i.e. for the remote control, between

units, etc.) and the high voltage electric wiring do not

pass near each other, keeping them at least 50 mm

apart. Proximity may cause electrical interference,

malfunctions, and breakage.

■ Be sure to connect the power wiring to the power

wiring terminal block and secure it as described under

"8.8. Field line connection: power wiring" on page 17.

■ Inter-unit wiring should be secured as described in

"8.7. Field line connection: transmission wiring and

cool/heat selection" on page 16.

• Secure the wiring with the accessory clamps so

that it does not touch the piping and no external

force can be applied to the terminal.

• Make sure the wiring and the electric box lid do not

stick up above the structure, and close the cover

ﬁrmly.

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Daikin RXQ18P7W1BA Installation Manual Page 20

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