Remote Controllers - Mitsubishi Electric CITY MULTI PVFY-P18 NAMU-E Installation Manual

13.1. Remote controllers

M-NET (ME) Controllers
Type of transmission cable: Sheathed 2-core cable (unshielded)
Cable diameter: (AWG18)
Note: When 10 m (33 ft.) is exceeded use same cable as
specifi ed for transmission wiring above.
MA Controllers – Minimum 18 gauge
Type of transmission cable: Sheathed 2-core cable (unshielded)
Cable diameter: (AWG18)
Note: Length not to exceed 200 m (265')
-Power supply cords of appliances shall not be lighter than design 245 IEC 57, 227 IEC 57, 245 IEC 53 or 227 IEC 53.
-A switch with at least 3 mm contact separation in each pole shall be provided by the air conditioner installation.
Total operating current of
the Indoor unit
Main cable
F0 = 16 A or less *2
F0 = 25 A or less *2
F0 = 32 A or less *2
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 curent of the indoor units × 1.2
F2 = {V1 × (Quantity of Type1)/C} + {V1 × (Quantity of Type2)/C} + {V1 × (Quantity of Type3)/C} + {V1 × (Quantity of Others)/C}
Indoor unit V1
PVFY-NAMU 38
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 PVFY-NAMU × 3, C = 8 (refer to right sample chart)
F2 = 38 × 3/8
= 14.25
16 A breaker (Tripping current = 8 × 16 A at 0.01s)
*3 Current sensitivity is calculated using the following formula.
G1 = (V2 × Quantity of Type1) + (V2 × Quantity of Type2) + (V2 × Quantity of Type3) + (V2 × Quantity of Others) + (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
Caution:
or fire.
20
Minimum wire thickness (mm )
2
Branch Ground
1.5 1.5 1.5
2.5 2.5 2.5
4.0 4.0 4.0
V2
1.6
Wire thickness
1.5 mm 2
2.5 mm 2
4.0 mm 2
Wire size for Main Power Supply and On/Off
Capacities.
Minimum Wire size AWG
Main Cable: 14
Branch: 14
Ground: 14
Breaker for Wiring (NFB)
15 A
Caution:
DO NOT POWER THE ELECTRIC HEAT FROM THE
OUTDOOR UNIT. FOLLOW THE APPROPRIATE
WIRING SCHEMATIC FOUND IN THE ELECTRIC
HEATER INSTRUCTIONS.
Ground-fault interrupter *1
20 A current sensitivity *3
30 A current sensitivity *3
40 A current sensitivity *3
V3
48
56
66
Local switch (A)
Breaker for wiring (A)
(Non-fuse breaker)
Capacity Fuse
16 16
25 25
32 32
6000
600
SAMPLE
60
10
1
0.1
0.01
1 20
2 3 4 6 8 10
C
Rated Tripping current (x)
Sample chart
20
30
40