Hisense AVWT-76FKFSHA Technical Handbook page 561

NOTE:
1. Do not lead the power supply wiring and transmission wiring through the same conduit tube. Moreover, keep at least 5cm
between the power supply wiring and transmission wiring
2. Cut cross line at rubber bush and securely attach it to the knock-out hole for cable protecting.
3. Attach the pipe cover to avoid entrance of rats or other small animals into the unit.
4. Avoid the wirings from touching the refrigerant pipes, plate edges and electrical parts inside the unit.
5. Completely seal the end of conduit tube with sealing materials to avoid entrance rain into the conduit tube.
Make a drain hole at the lowest part of the conduit tube.
Tightly secure the power source wiring using the cord clamp inside the unit.
Electrical Wiring Connection of The System
(1) Connect a power supply wiring to each outdoor unit. Connect an ELB, fuse and main switch (S) to each outdoor unit.
(2) Connect a power supply wiring to each indoor unit group to be connected to the same outdoor unit. Connect an ELB,
fuse and main switch (S) to each indoor unit group.
(3) Connect the transmission wiring between indoor units and outdoor units, as shown in figure below.
(4) Connect the transmission wiring in the same refrigeration cycle unit. (In case that the refrigerant pipe of indoor unit is
connected to the outdoor unit, connect the transmission wiring to the same indoor unit.) Connecting the refrigerant pipe and
transmission wiring to the different refrigeration cycle systems may lead to malfunction.
(5) Use 2-Core lead wires such as shielded twist pair cable for the transmission wiring. (Do not use 3-Core or over.)
(6) Use the same kind of cables for the Hi-NET system of the same refrigeration cycle.
(7) The transmission wiring is required to be separated from the power supply wiring. Keep at least 5cm between the
transmission wiring and the power supply wiring, and also min. 1.5m between the transmission wiring and power supply
wiring for other electrical device. If the above is not secured, put the power supply wiring into the metal conduit tube to
separate from other wirings.
(8) Connect the following transmission wiring to the terminals 1 and 2 of TB2 in the outdoor unit A (main unit).
●
between outdoor unit and indoor unit
●
between outdoor unit and indoor unit in other refrigerant cycles
(9) Do not connect the power supply wiring to the terminal board for transmission wiring (TB2). Printed circuit board may
be damaged.
(10) Connect the earth wire for the outdoor/indoor. The earth wiring work under the condition of 100 ohms (max.) ground
resistance should be performed by the qualified person.
NOTE:
1. For the combination units (290～1088kBtu/h), DSW settings of Main and Sub are required.
2. Alarm occurs if the transmission wires between outdoor units are connected to the terminals 1 and 2 for Hi-NET.
3. In case that alarm is indicated on the LCD of Main outdoor unit, follow the "7-segment" indication of the Main outdoor
unit checking.
4. Perform function setting from Main outdoor unit.
CAUTION
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