Hisense AVWT-408FHFSHA Installation Manual page 29

Install a multi-pole main switch with a space of 1/8in.(3mm) or more between each phase.
NOTES:
1) When the power supply wiring is longer, select the minimum wiring size of which the voltage drop is within 2%.
2) Power supply voltage should be satisfied with the followings:
supply voltage: rated voltage within +10%
starting voltage: rated voltage within -15%
operating voltage: rated voltage within ±10%
imbalance between phases: within 3%
3) Do not connect the earth wire to the gas pipe, water pipe, lightening conductor.
Gas pipe: an explosion and ignition may occur when gas leaks.
Water pipe: there is no effect of earth wire when a hard vinyl pipe is used.
Lightening conductor: the earth electric potential abnormally increases when a lightening conductor is used.
6.3 Electrical Wiring Connection
Connect the electrical wirings according to the following figure.
(1) Wrap power supply wiring once around the big magnet ring in electrical accessory pouch, and loosen two long
screws of cord clamp.
(2) Thread power supply wiring and earth wiring through the cord clamp, and connect power supply wiring to
Terminal on TB1, and connect the earth wiring to the earth wiring terminal in the electric box, then fix the cord clamp
with the long screw to secure power wiring and earth wring.
(3) Wrap transmission wiring between indoor and outdoor units twice around the small magnet ring in electrical
accessory pouch, then connect it to Terminal 1 and 2 of TB2 on PCB1. As for transmission wiring between outdoor
units of the same refrigerant system, please connect it to Terminal 3 and 4 of TB2 on PCB1.
(4) Tighten screws on the terminal board.
for I.U.
to O.U.
TB2
1 2 3 4
Cord Clamp
Shielded Twist
Pair Cable from
Indoor Unit
to Outdoor Unit
Terminal Board for
Power Supply Wiring
Cable Clamp
Connection Hole for
Power Supply Wiring
PCB1
for O.U.
to O.U.
Earth Wire
Shielded Twist
Pair Cable for
Transmission
between Outdoors
L1
L2
L3
CAUTION
Terminal Block for
Power Supply Wiring
(TB1)
L1 L2 L3
Attach
insulation
sleeve.
Earth Wiring
Cord clamp
Cord
Clamp
Terminal Board for
Transmission Wiring
Cable Clamp for
Transmission Wiring
NOTE: Refer to the above picture, thread the power supply wiring through the
cord clamp and mounting plate, then tighten the long screw to fix the cord
EarthWiring
clamp. Be careful not to squeeze the electrical wiring beside the cable clamp.
Transmission Wiring
install small magnet ring
Power Wiring
install big magnet ring
Connection Hole for
Transmission Wiring
NOTE: seal hermetically the entry of the conduit by using putty
or etc. to avoid the ingress of water.
21
Earth Wiring
Terminal (Connect
securely cable.)
Long
Screw
Mounting
Plate
Power Supply WiringΦ1-23/32(Φ43.7)
Operating Wiring
Φ55/64(Φ22)
(Knock-out Hole)
Electric Box
Inner Wiring
Power Supply
Wiring