Wiring Of Main Power Supply And Equipment Capacity - Mitsubishi Electric PURY-P200YHM-A(-BS) Manuel D'installation

Unit
Indoor unit (Main)
Indoor unit (Sub)
Outdoor Unit (OC, OS)
BC controller (Main)
BC controller (Sub)
M-NET R/C (Main)
M-NET R/C (Sub)
MA R/C
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 M-NET Remote controller [Fig. 11.3.1] (P.8)
• Max length via outdoor units: L +L
1
• Max transmission cable length: L
• Remote controller cable length:
If the length exceeds 10 m, use a 1.25 mm
maximum length and overall length.
2 MA Remote controller [Fig. 11.3.2] (P.9)
• Max length via outdoor unit (M-NET cable): L
• Max transmission cable length (M-NET cable): L
• Remote controller cable length: m
3 Transmission booster [Fig. 11.3.3] (P.9)
• Max transmission cable length (M-NET cable): 1 L
• Remote controller cable length:

11.4. Wiring of main power supply and equipment capacity

Schematic Drawing of Wiring (Example)
[Fig. 11.4.1] (P.9)
A Switch (Breakers for wiring and current leakage)
D Pull box
Thickness of wire for main power supply, capacities of the switch and system impedance
Model
Main cable
PURY-(E)P200YHM
PURY-(E)P250YHM
Outdoor unit PURY-(E)P300YHM
PURY-P350YHM
PURY-P400YHM
16A or less
Total
BC controller
operating
current of 25A or less
the indoor
unit 32A or less
*1: Meets technical requirements of IEC61000-3-3
1. Use dedicated power supplies for the outdoor unit and indoor unit. Ensure OC and OS are wired individually.
2. Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections.
3. The wire size is the minimum value for metal conduit wiring. If the voltage drops, use a wire that is one rank thicker in diameter.
Make sure the power-supply voltage does not drop more than 10%.
4. Specifi c wiring requirements should adhere to the wiring regulations of the region.
5. Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed fl exible cord (design 245 IEC57). For
example, use wiring such as YZW.
6. A switch with at least 3 mm contact separation in each pole shall be provided by the Air Conditioner installer.
Warning:
• Be sure to use specifi ed wires for connections and ensure no external force is imparted to terminal connections. If connections are not fi xed fi rmly,
heating or fi re may result.
• Be sure to use the appropriate type of overcurrent protection switch. Note that generated overcurrent may include some amount of direct current.
20
Range
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.
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)
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)
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.
51 to 100 Lowest address within the indoor units connected to the BC controller (sub) plus 50
101 to 150 Set at an IC (Main) address within the same group plus 100
151 to 200 Set at an IC (Main) address within the same group plus 150
– Unnecessary address setting (Necessary main/sub setting)
+L +L and L +L +L +L and L +L
2 3 4 1 2 3 5 1
and L +L and L +L and L and L
1 3 4 3 5 6 2
, , , 10 m (0.3 to 1.25 mm )
2
1 2 3 4
+L +L +L and L +L +L
1 2 3 4 1 2
and L +L and L and L
1 3 4 6
+m and m +m +m +m 200 m (0.3 to 1.25 mm
1 2 1 2 3 4
+ L + L + L
11 12 13 14
2 L + L + L + L
11 12 13 14
3 L + L + L + L
11 12 13 15
4 L + L + L + L
17 16 14 15
, 10 m (0.3 to 1.25 mm 2 )
1 2
If the length exceeds 10 m, use 1.25 mm
extended length and the longest remote length.
B Breakers for current leakage
E Indoor unit
Minimum wire thickness (mm 2 )
Branch Ground
4.0 - 4.0
4.0 - 4.0
4.0 - 4.0
6.0 - 6.0
10.0 - 10.0
1.5 1.5 1.5
2.5 2.5 2.5
4.0 4.0 4.0
Setting Method
+L 500 m (1.25 mm 2 or more)
2 6
+L 200 m (1.25 mm 2 or more)
6
2 shielded wire. The length of this section (L
500 m (1.25 mm 2 or more)
6
+L 200 m (1.25 mm 2 or more)
2 6
)
2
+ L + L 200 m (1.25 mm )
2
16 17
+ L + L 200 m (1.25 mm )
2
16 18
200 m (1.25 mm 2 )
, L + L + L + L 200 m (1.25 mm
15 14 16 18
2 shielded cable and calculate the length of that portion (L
C Outdoor unit
F BC controller (standard or main)
Breaker for current Local swtich (A)
leakage
Capacity
30A 100mA 0.1sec. or less 25
30A 100mA 0.1sec. or less 32
30A 100mA 0.1sec. or less 32
40A 100mA 0.1sec. or less 40
60A 100mA 0.1sec. or less 63
20A 30mA 0.1sec. or less 16
30A 30mA 0.1sec. or less 25
40A 30mA 0.1sec. or less 32
) should be included in the calculation of the
8
2 )
and L ) as within the total
15 18
F' BC controller (sub)
Breaker for wiring Max. Permissive
(NFB) (A) System Impedance
Fuse
25 30
32 30
32 30
40 40
63 60
16 20
25 30
32 40
*1
*1
*1
0.27 Ω
0.26 Ω
(apply to
IEC61000-3-3)
(apply to
IEC61000-3-3)
(apply to
IEC61000-3-3)