Mitsubishi Electric PUMY-P250YBM2-BS, Technical & Service Manual

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113
TCH091
1. Bear in mind ambient conditions (ambient temperature, direct sunlight, rain water, etc.) when proceeding with the wiring and connections.
2. The wire size is the minimum value for metal conduit wiring. The power cord size should be 1 rank thicker consideration of voltage drops.
Make sure the power-supply voltage does not drop more than 10%.
3. Specific wiring reguirements should adhere to the wiring regulations of the region.
4. Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord (design 60245 iec57). For example, use
wiring such as YZW.
5. Install an earth longer than other cables.
9-2-2.
Cross section area of Wire for Main Power and ON/OFF capacities
<When power is supplied separately>
Model
Power supply *2
Minimum Wire Cross-sectional area (mm²)
Breaker for Wiring *1 Breaker for Current Leakage
Main Cable Ground
Outdoor unit
PUMY-P250YBM 3N~ 380-400-415 V 50 Hz 4.0 4.0 32 A 32 A 30 mA 0.1 sec. or less
PUMY-P300YBM 3N~ 380-400-415 V 50 Hz 6.0 6.0 40 A 40 A 30 mA 0.1 sec. or less
<When power is supplied from the outdoor unit>
Model
Power supply *2
Minimum Wire Cross-sectional area (mm²)
Breaker for Wiring *1 Breaker for Current Leakage
Main Cable Ground
Outdoor unit
PUMY-P250YBM 3N~ 380-400-415 V 50 Hz 6.0 6.0 40 A 40 A 30 mA 0.1 sec. or less
PUMY-P300YBM 3N~ 380-400-415 V 50 Hz 6.0 6.0 40 A 40 A 30 mA 0.1 sec. or less
*1 A breaker with at least 3.0 mm contact separation in each poles shall be provided. Use non-fuse breaker (NF) or earth leakage breaker (NV).
*2 In multi-phase appliances, the colour of the neutral conductor of the supply cord, if any, shall be blue.
<Indoor units> When power is supplied to indoor unit and outdoor unit separately
Total operating current of the indoor unit
Minimum wire thickness (mm
2
)
Ground-fault interrupter *1
Local switch (A)
Breaker for wiring
(NFB) Main Cable Branch Ground Capacity Fuse
F0 = 16 A or less *2 1.5 1.5 1.5 20 A current sensitivity *3 16 16 20
F0 = 25 A or less *2 2.5 2.5 2.5 30 A current sensitivity *3 25 25 30
F0 = 32 A or less *2 4.0 4.0 4.0 40 A current sensitivity *3 32 32 40
Apply to IEC61000-3-3 about max. permissive system impedance.
*1 The Ground-fault interrupter should support inverter circuit.
The Ground-fault interrupter should combine using of local switch or wiring breaker.
*2 Please take the larger of F1 or F2 as the value for F0.
F1 = Total operating maximum current of the indoor units × 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 16)/C}
C : Multiple of tripping current at tripping time 0.01s
Please pick up “C” from the tripping characteristic of the breaker.
<Example of “F2” calculation>
* Condition: PEFY-P·VMS1-E × 4 + PEFY-P·VMA-E × 1, C = 8 (refer to right sample chart)
F2 = 19.8 × 4/8 + 38.0 × 1/8
= 14.65
*3 Current sensitivity is calculated using the following formula.
G1 = {V2 × (Quantity of Type 1)} + {V2 × (Quantity of Type 2)} + ··· + {V2 × (Quantity of Type 16)} + {V3 ×
(Wire length [km])}
G1 Current sensitivity
30 or less 30 mA 0.1 sec or less
100 or less 100 mA 0.1 sec or less
Wire thickness V3
1.5 mm
2
48
2.5 mm2 56
4.0 mm
2
66
Rated Tripping current (x)
6000
600
60
10
1
0.1
1 2 3 4 6 8
C
10 20
Sample chart
Tripping
Time [s]
SAMPLE
0.01
Connect to Branch box (PAC-MK·BC)
Indoor unit V1 V2
Type 1 PEAD-M·JAA(D) 26.9
2.4
Type 2 SEZ-M·DA(L)2, PCA-M·KA2 19.8
Type 3 SLZ-M·FA2, PLA-M·EA2 17.1
Type 4
MSZ-AP·VG(K), MSZ-RW·VG-E1, MFZ-KT·VG, MFZ-KT·VG-E2, MLZ-KY·VG-E1,
MSZ-LN·VG2, MSZ-EF·VG(-E2/ER2/ET2), MSZ-EF·VGK(-E1/ER1/ET1)
7.4
Type 5 MSZ-FH·VE2 6.8
Type 6 Branch box (PAC-MK·BC) 5.1 3
Connect to Connection kit (PAC-LV11M)
Indoor unit V1 V2
Type 7 MSZ-EF·VG(-E2/ER2/ET2), MSZ-EF·VGK(-E1/ER2/ET1), MSZ-AP·VG(K), MFZ-KT·VG, MSZ-LN·VG2 7.4
2.4 Type 8 MSZ-FH·VE2 6.8
Type 9 Connection kit (PAC-LV11M) 3.5
Connect to City Multi
Indoor unit V1 V2
Type 10 PEFY-P·VMA(L)-E, PEFY-P·VMA(L)-E2, PEFY-P·VMA(L)-E3, PEFY-P·VMX(L)-E(1) 38
1.6
Type 11 PEFY-P40-140VMHS-E, PEFY-P·VMH-E2 26.8
Type 12
PMFY-P·VBM-E, PLFY-P·VFM-E, PEFY-P·VMS1(L)-E, PCFY-P·VKM-E, PKFY-P·VKM-E,
PKFY-P·VLM-E, PFFY-P·VKM-E2, PFFY-P·VCM-E
19.8
2.4
Type 13 PLFY-P·VEM-A, PLFY-M·VEM-E 17.1
Type 14 PEFY-M·VMA(2)(L)-A, PEFY-M·VMA(L)-A1 18.6 3
Type 15 PEFY-P200/250VMHS-E, PEFY-P·VMHS-E-F 13.8 4.8
Type 16 PEFY-P·VMR-E-L/R, PFFY-P·VLEM-E, GUF-RD(H)4 0 0