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16

7-4 Examples

System example (Refer to figure 13)

1.

Field power supply

2.

Main switch

3.

Earth leak detector

4.

Fuse

5.

COOL / HEAT selector

6.

Remote controller

7.

Outdoor unit

8.

BS unit

9.

Indoor unit

power supply wiring (sheathed cable)

transmission wiring (sheathed cable)

Field line connection

L1, L2, L3, phase of the power supply wiring should be clamped to the
safety catch using the included clamp material.
The green and yellow striped wrapped wires should be used for ground-
ing.

(Refer to figure 14)

1.

Power supply
(208~230 V, Three-phase)

2.

Branch switch, overcurrent breaker

3.

Grounding wire

4.

Earth leakage breaker

5.

Section A

6.

Attach insulation sleeves.

7.

Power supply terminal block

8.

Grounding terminal

9.

Retain the ground wire along with the power supply wiring using
the accessory clamps (1).

10.

Retain the power supply wiring to the bracket using the acces-
sory clamps (1).

11.

Grounding wire

12.

When wiring, do not allow the ground wire to contact the com-
pressor lead wires. If the wire contacts each other, adverse
effects may occur to other units.

13.

When connecting two wires to one terminal, ensure that the
crimp-style terminals face with each other back to back.
Moreover, make sure that the wire of the smaller gauge is
located above.

14.

Terminal block

15.

Crimp-style terminal

16.

Wire gauge: Small

17.

Wire gauge: Large

(Refer to figure 20)

1.

Retain with accessory clamp (3).

2.

Electric wiring

3.

Wiring between units

4.

Retain to the electric parts box with the accessory clamps (1).

5.

When routing the remote control cord and inter-unit wiring,
secure clearance of 5” or more from the power wiring. Ensure
that the power wiring does not contact any heated sections 
(  

).

6.

Retain to the back of the column support with the accessory
clamp (2).

7.

Inter-unit wirings

8.

Power/ground wires

9.

Grounging wire

10.

When wiring, exercise sufficient caution not to detach the

acoustic insulators from the compressor.

CAUTION

〈〈〈〈

Precautions when laying power wiring

〉〉〉〉

Use round pressure terminals for connections to the power terminal

block.

When none is available, follow the instructions below.

Do not connect wiring of different thicknesses to the power 

terminal block. (Slack in the power wiring may cause abnormal

heat.)

When connecting wiring which is the same thickness, do as

shown in the figure below.

For wiring, use the designated power wire and connect firmly,

then secure to prevent outside pressure being exerted on the ter-

minal board.

Use an appropriate screwdriver for tightening the terminal

screws. A screwdriver with a small head will strip the head and

make proper tightening impossible.

Over-tightening the terminal screws may break them.

See the table below for tightening torque for the terminal screws.

〈〈〈〈

Precautions when connecting the ground

〉〉〉〉

When pulling the ground wire out, wire it so that it comes through the

cut out section of the cup washer. (An improper ground connection

may prevent a good ground from being achieved.)

Field line connection: transmission wiring

[In case of one outdoor unit]

(Refer to figure 15)

1.

Outdoor unit

2.

Outdoor unit P.C. board (A1P)

3.

BS unit A

4.

BS unit B

5.

Last BS unit

6.

Indoor unit

7.

Remote controller

8.

Cool-only unit

9.

Use the conductor of sheathed wire (2 wire) (no polarity)

[In case of multiple outdoor units]

(Refer to figure 17)

1.

Unit A (Master unit)

2.

Unit B

3.

TO IN/D UNIT

4.

TO OUT/D UNIT

5.

TO MULTI UNIT

6.

To indoor unit

7.

To other systems

Tightening torque (ft.Ibf)

M8 (Power terminal block)

4.06-5.38

M8 (Ground)
M3 (Inter-unit wiring terminal block)

0.59-0.72

Connect same-
thickness wiring
to both sides.

Power wire

Round pressure terminal

It is forbidden to
connect two to
one side.

It is forbidden to
connect wiring of
different thicknesses.

Round pressure terminal

Cup washer

Cut out section 

01_EN_3P114261-10Y.fm  Page 16  Thursday, June 16, 2005  3:14 PM

Summary of Contents for REYQ192MTJU

Page 1: ...EL REYQ96MTJU REYQ192MTJU Read these instructions carefully before installation Keep this manual in a handy place for future reference This manual should be left with the equipment owner 00_CV_3P11426...

Page 2: ...al 1 1 2 2 1 3 1 1 1 1 in H1 59 H1 59 X H2 19 5 8 H2 19 5 8 Y A 19 5 8 A 19 5 8 X 2 B1 11 3 4 B2 3 7 8 B1 11 3 4 Y 2 B2 3 7 8 Y 2 60 5 3 1 4 2 2 in 40 4 0 40 6 0 60 60 6 3 5 7 3 4 1 2 8 28 7 16 29 3 1...

Page 3: ...stalled 2 1 3 5 6 8 4 7 One outdoor unit installed One outdoor unit installed 1 2 4 5 6 3 7 1 2 4 5 6 3 1 2 3 4 5 6 7 8 9 16 10 11 15 14 12 17 13 1 2 3 4 5 6 13 18 12 20 16 16 9 10 11 17 8 19 7 1 2 3...

Page 4: ...1 2 3 5 7 10 8 1 4 6 9 2 3 1 2 1 2 3 4 5 A B C F1 F2 F1 F2 Q1 Q2 A B C F1 F1 F2 F2 Q1 Q2 2 1 C H SELECTOR TO IN D UNIT TO OUT D UNIT TO MULTI UNIT A1P IN D OUT D BS F1 F1 F2 F2 F1 F2 F1 F2 F1 F2 F1 F2...

Page 5: ...e unit on a foundation strong enough to withstand the weight of the unit A foundation of insufficient strength may result in the equipment falling and causing injuries Carry out the specified installa...

Page 6: ...t that the outdoor unit be used as a shelter by small ani mals Small animals making contact with electrical parts can cause mal functions smoke or fire Please instruct the customer to keep the area ar...

Page 7: ...lamp 1 Clamp 2 Clamp 3 Suction gas line piping attached to unit 1 Quantity 9 pcs 2 pcs 1 pc 1 pc Shape Name Suction gas line piping attached to unit 2 Suction gas line piping attached to unit 3 Discha...

Page 8: ...AND HANDLING THE UNIT At delivery the package should be checked and any damage should be reported immediately to the carrier claims agent When handling the unit take into account the following 1 Fragi...

Page 9: ...size referring to chapter Example of connection The wall thickness of the refrigerant piping should comply with relevant local and national regulations 3 Make sure to use the particular branches of pi...

Page 10: ...ate adversely affecting the refrigerant piping system NOTE The pressure regulator for the nitrogen released when doing the brazing should be set to 2 9 psi or less Refer to figure 9 1 Refrigerant pipi...

Page 11: ...topping outdoor unit Change to pattern 1 or pattern 2 UnitA Unit B Unit B UnitA to indoor unit Change as shown in the figure below to indoor unit to indoor unit to indoor unit Oilcollectstotheoutdooru...

Page 12: ...er of outdoor units Branch kit name Outdoor unit capacity type Refrigerant branch kit name indoor capacity index Refrigerant branch kit name In case of 3 pipes In case of 2 pipes 1 15 _ If the outdoor...

Page 13: ...ly excessive force to the stop valve Doing so may break the valve body as the valve is not a backseat type Always use the special tool 3 Make sure to tighten the cap securely Closing stop valve 1 Remo...

Page 14: ...n unsuitable substance may cause explosions and accidents so always ensure that the appropriate refrigerant R410A is charged Refrigerant containers shall be opened slowly Always use protective gloves...

Page 15: ...or the power cord 7 2 Power circuit and cable requirements A power circuit see table below must be provided for connection of the unit This circuit must be protected with the required safety devices i...

Page 16: ...wire 10 When wiring exercise sufficient caution not to detach the acoustic insulators from the compressor CAUTION Precautions when laying power wiring Use round pressure terminals for connections to t...

Page 17: ...necting wiring between the outdoor units in the same pipe line must be connected to the Q1 Q2 Out Multi terminals Con necting the wires to the Out Out terminals results in system mal function The wiri...

Page 18: ...the configuration on the parent unit Any settings made on a child unit will be ignored Always perform configuration after turning ON the power To learn the setting method refer to the Service Precauti...

Page 19: ...f refrigerant Ib charged to each system separately NOTE Where a single refrigerant facility is divided into 2 entirely indepen dent refrigerant systems then use the amount of refrigerant with which ea...

Page 20: ...1645 Wallace Drive Suite 110 Carrollton TX 75006 info daikinac com www daikinac com 3P114261 10Y EM04A002A 0506 HT 00_CV_3P114261 10Y fm Page 5 Thursday June 16 2005 4 31 PM...

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