11
•
Do not let the ground wire come in contact with gas pipes, water pipes, lightning rods, or telephone ground
wires.
•
Gas pipes: gas leaks can cause explosions and fire.
•
Water pipes: cannot be grounded if hard vinyl pipes are used.
•
Telephone ground wires and lightning rods: the ground potential when struck by lightning gets extremely
high.
•
Do not turn on the power supply (branch switches, overload interrupters) until all other work is done.
7-2 EXAMPLE FOR THE WHOLE SYSTEM
7-3 ELECTRICAL CHARACTERISTICS
MCA: Min. Circuit Amps (A);
MFA: Max. Fuse Amps (A)
NOTE
•
The above Table of Electrical Characteristics refers to the BS unit only.
•
See the technical documents for other details.
7-4 SPECIFICATIONS FOR FIELD SUPPLIED FUSES AND WIRE
NOTE
1.
Select the particular size of electric wire for power line in accordance with the standards of the given nation
and region.
2.
Insulated thickness:0.04’’ or more
3.
Allowable length of the transmission wiring should be as follows.
Between outdoor unit, BS unit and indoor unit:Max. 3280ft. (Total wiring length: 6560ft.)
Between BS unit and remote controller: Max. 1640ft.
Max. branches No. of branches:16
4.
Up to 16 branches are possible for unit-to-unit cabling. No branching is allowed after branching.
Units
Power supply
Model
Type
Hz
Voltage
Min.
Max.
MCA
MFA
BSVQ36M
BSVQ60M
VJ
60
208-230
187
253
0.2
15
Model
Power supply wiring
Transmission wiring
Field fuse
Size
Wire
Size
BSVQ36M
15A
Size must comply with local
codes.
Sheathed wire (2 wire)
(NOTE 2)
AWG18-16
BSVQ60M
