Mitsubishi Electric PURY-P450YSJM-A [22/39] Wiring of main power supply and equipment capacity
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Mitsubishi Electric PURY-P450YSJM-A [22/39] Wiring of main power supply and equipment capacity

Mitsubishi Electric PURY-P350YJM-A [22/39] Wiring of main power supply and equipment capacity
22
GB
Unit Range Setting Method
Indoor unit (Main) 01 to 50 Use the most recent address within the same group of indoor units. With an R2 system with sub BC
controllers, set the indoor unit address in the following order:
1 Indoor units connected to the main BC controller
2 Indoor units connected to BC sub controller 1
3 Indoor units connected to BC sub controller 2
Set the indoor unit addresses so that all the addresses of 1 are smaller than those of 2, and that all
the addresses of 2 are smaller than those of 3.
Indoor unit (Sub)
01 to 50 Use an address, other than that of the IC (Main) from among the units within the same group of indoor
units. This must be in sequence with the IC (Main)
Outdoor Unit (OC, OS)
51 to 100 Set the addresses of the outdoor units in the same refrigerant system in the order of sequential
number. OC and OS are automatically identifi ed. (*1)
BC controller (Main)
51 to 100 Outdoor unit address plus 1. When the set indoor unit address duplicates the address of another
indoor unit, set the new address to a vacant address within the setting range.
BC controller (Sub) 51 to 100 Lowest address within the indoor units connected to the BC controller (sub) plus 50
ME R/C (Main) 101 to 150 Set at an IC (Main) address within the same group plus 100
ME R/C (Sub) 151 to 200 Set at an IC (Main) address within the same group plus 150
MA R/C – Unnecessary address setting (Necessary main/sub setting)
h. The group setting operations among the multiple indoor units is done by the remote controller (RC) after the electrical power has been turned on.
i. When the centralized remote controller is connected to the system, set centralized control switches (SW2-1) on control boards in all outdoor units (OC, OS) to “ON”.
*1 OC and OS of the outdoor units in the same refrigerant system are automatically identifi ed. They are identifi ed as OC and OS in descending order of capacity (If the
capacity is the same, they are identifi ed in the ascending order of their address number).
<Permissible Lengths>
1 ME Remote controller [Fig. 11.3.1] (P.9)
Max length via outdoor units: L
1+L2+L3+L4 and L1+L2+L3+L5 and L1+L2+L6 500 m (1.25 mm
2
or more)
Max transmission cable length: L
1 and L3+L4 and L3+L5 and L6 and L2+L6 200 m (1.25 mm
2
or more)
Remote controller cable length:
1, 2, 3, 4 10 m (0.3 to 1.25 mm
2
)
If the length exceeds 10 m, use a 1.25 mm
2
shielded wire. The length of this section (L8) should be included in the calculation of the
maximum length and overall length.
2 MA Remote controller [Fig. 11.3.2] (P.10)
Max length via outdoor unit (M-NET cable): L
1+L2+L3+L4 and L1+L2+L6 500 m (1.25 mm
2
or more)
Max transmission cable length (M-NET cable): L
1 and L3+L4 and L6 and L2+L6 200 m (1.25 mm
2
or more)
Remote controller cable length: m
1+m2 and m1+m2+m3+m4 200 m (0.3 to 1.25 mm
2
)
3 Transmission booster [Fig. 11.3.3] (P.10)
Max transmission cable length (M-NET cable): 1 L
11 + L12 + L13 + L14 + L16 + L17 200 m (1.25 mm
2
)
2 L
11 + L12 + L13 + L14 + L16 + L18 200 m (1.25 mm
2
)
3 L
11 + L12 + L13 + L15 200 m (1.25 mm
2
)
4 L
17 + L16 + L14 + L15, L15 + L14 + L16 + L18 200 m (1.25 mm
2
)
Remote controller cable length:
1, 2 10 m (0.3 to 1.25 mm
2
)
If the length exceeds 10 m, use 1.25 mm
2
shielded cable and calculate the length of that portion (L15 and L18) as within the total
extended length and the longest remote length.
11.4. Wiring of main power supply and equipment capacity
Schematic Drawing of Wiring (Example)
[Fig. 11.4.1] (P.10)
A
Switch (Breakers for wiring and current leakage)
B
Breakers for current leakage
C
Outdoor unit
D
Pull box
E
Indoor unit
F
BC controller (standard or main)
F'
BC controller (sub)
Thickness of wire for main power supply, capacities of the switch and system impedance
Model
Minimum wire thickness (mm
2
)
Breaker for current
leakage
Local swtich (A)
Breaker for wiring
(NFB) (A)
Max. Permissive
System Impedance
Main cable Branch Ground
Capacity Fuse
Outdoor unit
(E)P200YJM 4.0 - 4.0
30A 100mA 0.1sec. or less
25 25 30 *1
(E)P250YJM 4.0 - 4.0
30A 100mA 0.1sec. or less
32 32 30 *1
(E)P300YJM 4.0 - 4.0
30A 100mA 0.1sec. or less
32 32 30 *1
P350YJM 6.0 - 6.0
40A 100mA 0.1sec. or less
40 40 40 0.24Ω
EP350YJM 6.0 - 6.0
40A 100mA 0.1sec. or less
40 40 40 *1
P400YJM 10.0 - 10.0
60A 100mA 0.1sec. or less
63 63 60 0.21Ω
P450YJM 10.0 - 10.0
60A 100mA 0.1sec. or less
63 63 60 0.19Ω
Total
operating
current of
the indoor
unit
F0=20A or less*2
1.5 1.5 1.5 Current sensitivity *3 16 16 20
(apply to
IEC61000-3-3)
F0=30A or less*2
2.5 2.5 2.5 Current sensitivity *3 25 25 30
(apply to
IEC61000-3-3)
F0=40A or less*2
4.0 4.0 4.0 Current sensitivity *3 32 32 40
(apply to
IEC61000-3-3)
*1: Meets technical requirements of IEC61000-3-3
*2: Please take the larger of F1 or F2 as the value for F0.
F1 = Total operating maximum current of the indoor units x 1.2 Indoor unit V1
F2 =
V1 x Quantity
of Type A
+
V1 x Quantity
of Type B
+
V1 x Quantity
of Others
Type A
PLFY-VBM, PMFY-VBM, PEFY-VMS, PCFY-VKM,
PKFY-VHM, PKFY-VKM, PFFY-VKM, PFFY-VLRMM
1.6
Type B PEFY-VMA 3.2
Others Other indoor unit 0
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WT05963X01_GB.indd 22WT05963X01_GB.indd 22 2010/08/26 20:39:482010/08/26 20:39:48

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