Mitsubishi Electric City Multi PKFY-P NHMU-E2 Série Manuel D'installation page 9

6. Electrical work
<Example of "F2" calculation>
*Condition PEFY-NMSU × 4 + PEFY-NMAU × 1, C = 8 (refer to right sample chart)
F2 = 18.6 × 4/8 + 38 × 1/8
= 14.05
→ 16A breaker (Tripping current = 8 × 16A 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 0.1sec or less
100 or less 100 mA 0.1sec or less
2
Wire thickness (mm /AWG)
2.1/14
3.3/12
5.3/10
B A
1
M1 M2 M1 M2
TB3 TB5
B
2
M1 M2
TB3 TB5
3
Fig. 6-3
V3
48
56
66
A
S 1 2 M1 M2 S 1 2
TB15 TB5 TB15
C C
A A
M1 M2 S M1 M2 S
TB5
C C
6.3. Types of control cables
1. Wiring transmission cables
Types of transmission cable Shielding wire CVVS or CPEVS
Cable diameter More than 1.25 mm
Length Less than 200m, 219 yard
2. M-NET Remote control cables
Types of remote control cable Shielding wire MVVS
Cable diameter More than 0.5 (AWG20) to 1.25 mm
Length Add any portion in excess of 10m, 33 ft to
within the longest allowable transmission cable
length 200m, 219 yard.
3. MA Remote control cables
Types of remote control cable
Cable diameter
Length
6.4. Connecting remote controller, indoor and
outdoor transmission cables (Fig. 6-3)
• Connect indoor unit TB5 and outdoor unit TB3. (Non-polarized 2-wire) The "S"
on indoor unit TB5 is a shielding wire connection. For specifications about the
connecting cables, refer to the outdoor unit installation manual.
• Install a remote controller following the manual supplied with the remote
controller.
• Connect the remote controller's transmission cable within 10 m, 33 ft using a
0.75 mm 2 (AWG22) core cable. If the distance is more than 10 m, 33 ft, use a
1.25 mm 2 (AWG16) junction cable.
1 MA Remote controller
• Connect the "1" and "2" on indoor unit TB15 to a MA remote controller. (Non-
polarized 2-wire)
• DC 9 to 13 V between 1 and 2 (MA remote controller)
2 M-NET Remote controller
• Connect the "M1" and "M2" on indoor unit TB5 to a M-NET remote controller.
(Nonpolarized 2-wire)
• DC 24 to 30 V between M1 and M2 (M-NET remote controller)
3 Wireless remote controller(When installing wireless signal receiver)
• Connect the wire of wireless signal receiver (9-pole cable) to CN90 of indoor
con-troller board.
• When more than two units are run under group control using wireless remote
controller, connect TB15 each with the same number.
• To change Pair No. setting, refer to installation manual attached to wireless re-
mote controller. (In the default setting of indoor unit and wireless remote control-
ler, Pair No. is 0.)
A Terminal block for indoor transmission cable
Terminal block for outdoor transmission cable(M1(A), M2(B),
B
C Remote controller
D Wireless signal receiver
E Wireless remote controller
Sample chart
6000
600
SAMPLE
60
10
1
0.1
0.01
1 2 3 4 6 8 10
C
Rated Tripping current (x)
2 (AWG16)
2 (AWG16)
2-core cable (unshielded)
0.3 (AWG22) to 1.25 mm (AWG16)
2
Less than 200m, 219 yard
(S))
9
20