Daikin RXYMQ36MVJU Instruction Manual download pdf (Page 24)

Installation EDUS39-606A-N

23 Installation of Outdoor Units

CAUTION

• Do not operate the air conditioner until the refrigerant pip-

ing work is completed.

Operating the air conditioner before the refrigerant piping

work is completed may damage the compressor.

• Install a ground leakage circuit breaker.

The inverter is provided in the air conditioner. In order to

prevent malfunction of the a ground leakage circuit breaker

itself, use a breaker resistant to higher harmonics.

• Electricians having sufficient knowledge should perform

the electrical wiring work.

All wiring must comply with local electrical codes and

National Electrical Code (NEC).

• Perform the electric wiring work in accordance with the

ELECTRIC WIRING DIAGRAM label.

• Make sure to turn OFF the branch switch and overcurrent

breaker before starting the work.

• Perform grounding to the indoor units and outdoor units.

• Use only copper wires.

• Make sure to turn the power off before starting the electric

wiring work.

Do not turn ON any switch until the work is completed.

• The outdoor unit has an inverter which generates noise

and charges the outer casing with the leakage current. The

outdoor unit should be grounded so that the effect of the

generated noise on other equipment can be reduced, and

the outer casing can be discharged.

• As this unit is equipped with an inverter, installing a phase

advancing capacitor will not only reduce the power factor

improvement factor, but may also cause the capacitor to

overheat due to high-frequency waves. Therefore, never

install a phase-advancing capacitor.

• Never push excessive electric wires into the units.

• Protect electric wires with conduit tubes or vinyl tubes so

that they will not be damaged by edges of knockout holes.

• Fix electric wires with clamps as accessories so that they

will not come into contact with pipes and stop valves.

Refer to Section Power supply wiring connection proce-

dure.

Connection example of whole system wiring

Routing power supply wiring and transmission

wiring

Let the power supply wiring with a conduit pass through one of

the knockout holes on the front or side cover, and let the trans

mission wiring with a conduit pass through another knockout

hole.

• For protection from un-insulated live parts, thread the

transmission wiring through the included insulating tube

and secure it with the included clamp.

Insulating tube

(accessory)

Clamp

(accessory)

Transmission

wiring

(3in.)

Precautions when knocking out knock holes:

• To punch the knockout hole, hit it with a hammer.

• After removing the knockout, paint the edges to prevent rust-

ing.

• Use conduit for both the power supply wiring and transmis-

sion wiring.

• Outside the unit, make sure to keep the wirings five inches

away or the outdoor unit may be affected by external elec-

trical noise and malfunction or fail.

• Be sure to connect the power supply wiring to the terminal

block and secure it as described in Section Power supply

wiring connection procedure.

• Fix the wiring between the units in accordance with Section

Transmission wiring connection procedure.

• To prevent wires from touching the piping, secure them

with the accessory clamps.

• Make sure the wirings will not be pinched by the front

panel, and close the panel firmly.

• Route the conduit along the unit by using a elbow socket to

prevent it from being stepped on.

Power

Remote

controller

Indoor

unit

Ground

Power

Ground

Outdoor unit

16V

208-230V

16V 16V 16V

Earth leakage

circuit breaker

Overcurrent

breaker (fuse)

Branch switch

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Daikin RXYMQ36MVJU Instruction Manual Page 24

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