# Electrical work

In document OUTDOOR UNIT (сторінка 42-54)

### ・Wiring example

Ⓐ Earth leakage breaker

Ⓑ Local switch (Overcurrent breaker and earth leakage breaker)

Ⓒ Outdoor unit

Ⓓ Pull box

Ⓔ Indoor unit

Ⓕ Earth

### (If local regulations do not specify the minimum power cable size or device capacity, follow the values in the table below.)

Minimum size [mm2 (AWG)]

Earth leakage breaker

Local switch (A)

Overcurrent breaker (NFB) (A)

Maximum allowable system

impedance Power

cable

Power cable after branching

point

Earth

wire Capacity Fuse

Outdoor unit

(E)P200 4.0 (12) – 4.0 (12) 30 A 100 mA 0.1 sec. or less 25 25 30 *3

(E)P250 4.0 (12) – 4.0 (12) 30 A 100 mA 0.1 sec. or less 32 32 30 *3

(E)P300 4.0 (12) – 4.0 (12) 30 A 100 mA 0.1 sec. or less 32 32 30 *3

(E)P350 6.0 (10) – 6.0 (10) 40 A 100 mA 0.1 sec. or less 40 40 40 0.27 Ω

(E)P400 10.0 (8) – 10.0 (8) 60 A 100 mA 0.1 sec. or less 63 63 60 0.22 Ω

(E)P450 10.0 (8) – 10.0 (8) 60 A 100 mA 0.1 sec. or less 63 63 60 0.19 Ω

(E)P500 10.0 (8) – 10.0 (8) 60 A 100 mA 0.1 sec. or less 63 63 60 0.16 Ω

Total operating current of the indoor units

F0 ≤ 16 A *1 1.5 (16) 1.5 (16) 1.5 (16) 20 A current sensitivity *2 16 16 20 (IEC 61000-3-3) F0 ≤ 25 A *1 2.5 (14) 2.5 (14) 2.5 (14) 30 A current sensitivity *2 25 25 30 (IEC 61000-3-3) F0 ≤ 32 A *1 4.0 (12) 4.0 (12) 4.0 (12) 40 A current sensitivity *2 32 32 40 (IEC 61000-3-3)

*1 Use the larger value of F1 or F2 as the value of F0.

F1 = Total of each indoor unit's maximum current × 1.2

F2 = {V1 × (Quantity of Type 1)/C} + {V1 × (Quantity of Type 2)/C} + {V1 × (Quantity of Type 3)/C} + {V1 × (Quantity of Type 4)/C}

*2 Current sensitivity is calculated using the following formula.

G1 = (V2 × Quantity of Type 1) + (V2 × Quantity of Type 2) + (V2 × Quantity of Type 3) + (V2 × Quantity of Type 4) + (V3 × Power cable length (km))

*3 Meets technical requirements of IEC 61000-3-3.

~220–240 V L, N 3N~380–415 V L1, L2, L3, N

Indoor unit V1 V2

20 C

10 8 6 4 3 2 0.011

0.1 1 10 60 600

Type 1 PLFY-VBM, PMFY-VBM, PEFY-VMS, PCFY-VKM, PKFY-VHM, PKFY-VKM, PFFY-VKM, PFFY-VLRMM 18.6 2.4 6000

Type 2 PEFY-VMA 38 1.6

Type 3 PEFY-VMHS 13.8 4.8

Type 4 Indoor unit other than the above 0 0

"C" is multiples of the tripping current at 0.01 s.

Obtain the value of "C" from the tripping characteristic of the breaker that is used on site.

<Example of "F2" calculation>

Conditions: PEFY-VMS × 4 units, PEFY-VMA × 1 unit, "C" = 8 (See the sample chart.) F2 = 18.6 × 4/8 + 38 × 1/8

= 14.05

→ Use a 16 A type breaker. (Tripping current = 8 × 16 A at 0.01 s)

Power cable size [mm2 (AWG)] V3

1.5 (16) 48

2.5 (14) 56

4.0 (12) 66

G1 Current sensitivity

30 mA or less 30 mA 0.1 sec or less 100 mA or less 100 mA 0.1 sec or less

1

1

### .

*1 Ssc

Model Ssc (MVA) Model Ssc (MVA)

P200 1.25 EP200 1.25

P250 1.38 EP250 1.27

P300 1.76 EP300 1.58

P350 2.05 EP350 1.87

P400 2.48 EP400 2.19

P450 2.88 EP450 2.62

P500 3.39 EP500 3.17

Tripping Time [s]

SAMPLE

Multiples of rated tripping current

### ・Transmission cable

Type 2-core shielded cable CVVS, CPEVS, or MVVS Size 1.25 mm2 (AWG 16), or ø1.2 mm or above Length Max. 200 m (656 ft)

Remarks

The maximum allowable length of transmission cables via outdoor units (both centralized control transmission cables and indoor-outdoor transmission cables) is 500 m (1640 ft)*1.

The maximum allowable length of transmission cables from the power supply unit to each outdoor unit or to the system controller is 200 m (656 ft).

* Do not use a single multiple-core cable to connect indoor units that belong to different refrigerant systems. The use of a multiple-core cable may result in signal transmission errors and malfunctions.

* Ensure shield continuity when extending the transmission cable.

*1 When extending the length of the transmission cables to 1000 m (3280 ft), consult your dealer.

### ・Remote controller cable

ME remote controller cable MA remote controller cable

Type 2-core sheathed cable (unshielded) CVV

Size 0.3–1.25 mm2 (AWG 22–16) (0.75–1.25 mm2 (AWG 18–16) if a simple remote controller is connected) Length Max. 10 m (32 ft)

* If the length exceeds 10 m (32 ft), use a 1.25 mm2

(AWG 16) shielded cable. Max. 200 m (656 ft)

### ・Unit code and the maximum number of connectable units

Unit type Code Number of connectable units

Outdoor unit Main unit OC –

Sub unit OS1, OS2 –

Indoor unit IC 1 to 26 units per OC

Remote controller RC 0 to 2 units per group

Transmission booster unit RP 0 to 1 unit per OC

* A transmission booster may be required depending on the number of connected indoor units.

* The outdoor units in the same refrigerant circuit are automatically designated as OC, OS1, and OS2. The outdoor units are designated as OC, OS1, and OS2 in the order of capacity from large to small (if two or more units have the same capacity, in the order of address from small to large).

### ・System configuration example

* The numbers in the parentheses in the figures below indicate address numbers.

### (1) When ME remote controllers are connected

Ⓐ Shielded cable

Ⓑ Sub remote controller

Ⓒ System controller

*1 When a power supply unit is not connected to the centralized control transmission cable, move the power jumper from CN41 to CN40 on only one of the outdoor units.

*2 If a system controller is used, set SW5-1 on ALL of the outdoor units to ON.

### Maximum allowable length of control cables

Transmission cables via outdoor units L1 + L2 + L3 + L4, L1 + L2 + L3 + L5, L1 + L2 + L6 ≤ 500 m (1640 ft)*3 Transmission cables L1, L3 + L4, L3 + L5, L6, L2 + L6 ≤ 200 m (656 ft)

Remote controller cables

1, ℓ2, ℓ3, ℓ4 ≤ 10 m (32 ft)

* If the length exceeds 10 m (32 ft), the length that exceeds 10 m (32 ft) needs to be included in the maximum allowable length of transmission cables above.

*3 When extending the length of the transmission cables to 1000 m (3280 ft), consult your dealer.

* Leave the power jumper connected to CN41.

* SW5-1: ON *2

* Move the power jumper from CN41 to CN40. *1

* SW5-1: ON *2

Group 1 Group 3 Group 5

### GB (2) When MA remote controllers are connected

Ⓐ Shielded cable

Ⓑ Sub remote controller

Ⓒ System controller

*1 When a power supply unit is not connected to the centralized control transmission cable, move the power jumper from CN41 to CN40 on only one of the outdoor units.

*2 If a system controller is used, set SW5-1 on ALL of the outdoor units to ON.

*3 When a PAR-31MAA is connected to a group, no other MA remote controllers can be connected to the same group.

### Maximum allowable length of control cables

Transmission cables via outdoor units L1 + L2 + L3 + L4, L1 + L2 + L6 ≤ 500 m (1640 ft)*4 Transmission cables L1, L3 + L4, L6, L2 + L6 ≤ 200 m (656 ft) Remote controller cables m1 + m2, m1 + m2 + m3 + m4 ≤ 200 m (656 ft)

*4 When extending the length of the transmission cables to 1000 m (3280 ft), consult your dealer.

### (3) When a transmission booster unit is connected

TB7 TB7 TB7

Ⓐ Shielded cable

*1 Daisy-chain terminals (TB3) on outdoor units together in the same refrigerant system.

*2 Leave the power jumper connected to CN41.

### Maximum allowable length of control cables

Transmission cables L1 + L2 + L3 + L5 + L6, L1 + L2 + L3 + L5 + L7, L1 + L2 + L4, L6 + L5 + L3 + L4, L4 + L3 + L5 + L7 ≤ 200 m (656 ft) Remote controller cables

1, ℓ2 ≤ 10 m (32 ft)

* If the length exceeds 10 m (32 ft), the length that exceeds 10 m (32 ft) needs to be included in the maximum allowable length of transmission cables above.

* Leave the power jumper connected to CN41.

* SW5-1: ON *2

* Move the power jumper from CN41 to CN40. *1

* SW5-1: ON *2

Group 1 Group 3 Group 5

Earth

### (1) When routing the wiring through the front of the unit (2) When routing the wiring through the bottom of the unit

Power cable size (mm2) Knockout hole to be used 2, 3.5, 5.5 Knockout hole 2

8, 14 Knockout hole 4

21, 26, 33 Knockout hole 3 84, 67, 53 Knockout hole 5

Ⓐ Cable strap

Ⓑ Power cable

Ⓒ Transmission cable

The length of the section after the cable access hole must be at least 1100 mm (43 in).

Ⓓ Clamp

Ⓔ Ground wire that connects Main Box and Inverter Box

Fill the gap.

### ・(E)P350 to 500

Fill the gap.

Rubber bushing (for main inverter connection wiring (200 V) and unit wiring (solenoid coil wiring))

Inverter Box Main Box

Cable strap

Tie band (Supplied)

Rubber bushing 1 Transmission terminal block

Main inverter connection wiring (low voltage)

Transmission cable (not supplied) The length of the section after the cable access hole must be at least 1100 mm (43 in).

Power supply terminal block

Power cable (not supplied) Rubber bushing 2

Tie band (Supplied)

Unit wiring (sensor wiring)

Rubber bushing (for FAN cable)

Rubber bushing (for Fan cable and unit wiring (solenoid coil wiring))

Cable strap

Tie band (Supplied)

Rubber bushing 1 Transmission terminal block

Transmission cable (not supplied)

Power supply terminal block

Power cable (not supplied) Rubber bushing 2

Tie band (Supplied)

Unit wiring (sensor wiring)

Fill the gap.

1

2

1

2

3

### below.)

*1 Make sure the cables are not coming out of the rubber bushing cut.

*2 When threading the wiring through the rubber bushing, make sure the rubber bushing will not come off the sheet metal on the control box.

*3 When tying the supplied tie band around the rubber bushing, make sure to leave no gap between the ends.

Cables are coming out of the rubber bushing.

Wiring Cross-sectional view Rubber bushing

(oval part) Rubber bushing (oval part) Cut

Top view Wiring

Wiring Top view

Rubber bushing

Sheet metal on the control box Rubber bushing Sheet metal on

the control box

Rubber bushing

<<Important>>

When putting the tie band on the rubber bushing, make sure the ends of the rubber bushing overlap each other as shown in the figure at left.

* If there is a gap, water from snow or rain may enter, resulting in equipment damage.

Cut on the rubber bushing There is a gap in

the rubber bushing.

Approx. 20 mm (13/16 in)

<Back of the rubber bushing>

Cut on the rubber bushing Tie band

Overlapped rubber bushing

Ⓐ-1 Ⓐ-2

### L1 L2 L3 N

Ⓐ Control box

Ⓑ Power supply terminal block (TB1)

Ⓒ Terminal block for indoor-outdoor transmission cable (TB3)

Ⓓ Terminal block for centralized control transmission cable (TB7)

Ⓐ Terminal block with loose screws

Ⓑ Properly installed terminal block

Ⓒ Spring washers must be parallel to the terminal block.

Ⓐ Power cables, transmission cables

Ⓑ Daisy-chain (transmission cables only)

Ⓒ Terminal blocks (TB1, TB3, TB7)

Ⓓ Make an alignment mark.

Ⓔ Install the ring terminals back to back.

1

### Connect the shield to the S terminal.

*1 If TB7 on the outdoor units in the same refrigerant system are not daisy-chained, connect the centralized control transmission cable to TB7 on the OC. If the OC is out of order, or if centralized control is being conducted during a power supply shut-off, daisy-chain TB7 on the OC, OS1 and OS2. (In the case that the outdoor unit whose power jumper CN41 on the control board has been replaced with CN40 is out of order or the power is shut-off, centralized control will not be conducted even when TB7 is daisy-chained.)

### ・Set the address setting switch as follows.

Indoor unit (Main, Sub) Assign the lowest address to the main indoor unit in the group, and assign sequential

addresses to the rest of the indoor units in the same group. 01 to 50 Outdoor unit (OC, OS1, OS2) Assign sequential addresses to the outdoor units in the same refrigerant system.

* To set the address to 100, the address setting switch must be set to 50. 51 to 100 ME remote controller Main Assign an address that equals the address of the main indoor unit in the group plus 100. 101 to 150

Sub Assign an address that equals the address of the main indoor unit in the group plus 150. 151 to 200 MA remote controller Address setting is not required. (The Main/Sub setting is required.) –

* The outdoor units in the same refrigerant circuit are automatically designated as OC, OS1, and OS2. The outdoor units are designated as OC, OS1, and OS2 in the order of capacity from large to small (if two or more units have the same capacity, in the order of address from small to large).

* Make indoor unit group settings from remote controllers after turning on the power to all units.

In document OUTDOOR UNIT (сторінка 42-54)

Outline

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