Electrical Work - Mitsubishi Electric TRANE CITY MULTI TPMFYP-BM140 Series Installation Manual

5. Electrical work

B
J
I
X
F
I
�����������
A
~230V
~230V
Total operating current of the indoor unit
F0 = 15A or less *2
F0 = 20A or less *2
F0 = 30A 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 current 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
TPLFYP∙EM, TPMFYP∙BM, TPEFYP∙MS,
Type 1
TPCFYP∙KM, TPKFYP∙HM, TPKFYP∙KM
Type 2 TPEFYP∙MA
Type 3 TPEFYP∙MH
Others Other indoor unit
C : Multiple of tripping current at tripping time 0.01 s
Please pick up "C" from the tripping characteristic of the breaker.
<Example of "F2" calculation>
• Condition TPEFYP∙MS × 4 + TPEFYP∙MA × 1, C = 8 (refer to right sample chart)
en
F2 = 19.8 × 4/8 + 38 × 1/8
= 14.65
→ 16 A breaker (Tripping current = 8 × 16 A at 0.01 s)
*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
30 or less
100 or less
2
Wire thickness (mm /AWG)
2.1/14
3.3/12
5.3/10
7
A
C
K
D
L
H
M
E
J
Fig. 5-1
D
B
C C C C
A B D
L1 L2 GR M1 M2 S 1 2
C
TB2 TB5 TB15
Fig. 5-2
Minimum wire thickness (mm²/AWG)
Main cable Branch
2.1/14 2.1/14
3.3/12 3.3/12
5.3/10 5.3/10
V1
19.8
38
13.8
0
Current sensitivity
30 mA 0.1sec or less
100 mA 0.1sec or less
V3
48
56
66
5.1. Electric wiring (Fig. 5-1)
* Make sure all electrical wiring is complete before installing the cover panel.
1. Secure the provided plate for conduit with provided screws to the side of the unit
(two screws).
2. Remove the cover from the address board (two screws).
3. Remove the cover from the electrical box (one screw).
4. Remove the screws securing the electrical box and lower the box (two screws).
5. Insert the wires into the electrical box.
6. Connect the wires securely to the terminal block.
* Be sure to make the various wires long enough so the box may be lowered from
the unit during servicing.
7. Replace the parts you have removed to their original locations.
8. Fix the provided conduit cover with provided screw to the plate for conduit
(two screws).
A means for the disconnection of the supply with an isolation switch, or similar de-
��������������������������������
Cover
F A
Electrical box
B
Terminal block for power supply
C
Terminal block for transmission cable
D
Control board
E
Address board
F
5.2. Power supply wiring
• Install an earth line longer than other cables.
• Power supply codes of appliance shall not be lighter than design 245IEC57 or
C
227IEC57, 245 IEC 53 or 227 IEC 53.
• A switch with at least 3 mm, 1/8 inch contact separation in each pole shall be
provided by the air conditioner installation.
[Fig. 5-2]
Ground-fault interrupter
A
Local switch/Wiring breaker
B
Indoor unit
C
Pull box
D
Ground Capacity
2.1/14 15
3.3/12 20
5.3/10 30
V2
2.4
1.6
4.8
0
Terminal block for MA Remote controller
H
Plate for conduit
I
Screw (M4×12)
J
Glass tube
K
Band (Short)
L
Conduit cover
M
Breaker for wiring
Ground-fault interrupter *1
(NFB)
Fuse
15 15 15A current sensitivity *3
20 20 20A current sensitivity *3
30 30 30A current sensitivity *3
Sample chart
6000
600
60
10
1
0.1
0.01
1
Rated Tripping current (x)
d wiring.
4
SAMPLE
2 3 4 6 8 10 20
C