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23
COMMUNICATION WIRING — The communication wire
must be wired as shown in Fig. 36. Do not route the
communication wire with the high voltage power wire or allow
it to come in contact with the non-insulated piping and sharp
edges.
Fig. 36 —Wire Arrangement and Fixing the Control
Wires
OPTION/EXTENSIONS OF COMMUNICATION
WIRING — To extend control wiring or make terminal
connections, use the PQE connection wire supplied in the
accessory kit and follow the steps below.
1.
Cut the connector on the outdoor unit side as shown in
Fig 37.
Fig. 37 —Shearing Outdoor Connector
2.
Strip a suitable length of the insulation layer as shown in
Fig. 38.
Fig. 38 —Stripping The Wire
3.
Use a suitable screwdriver to fix the communication wire
on the outdoor unit communication terminal as shown in
Fig. 39.
Fig. 39 —Connecting Communication Wire To
Outdoor Unit Communication Terminal
For communication wires connecting to indoor units, find
the corresponding port and plug it directly as shown in Fig. 40.
Fig. 40 —Connecting The Communication Wires
If for any reason it is not possible to buy communication
wires from Carrier, connect the indoor unit side of the
communication wires using the connector provided with the
accessories as shown in Fig. 41 below.
Fig. 41 —Connecting the Communication Cable to
Indoor Unit to Outdoor Unit using the Supplied
Connector
START-UP
Trial Run
Set a different address for each indoor unit. The addresses
can range from 0 to 63. The address can be set randomly using
the “Automatic Search Address” function or set the addresses
manually using the wireless remote or wired controller.
Select and assign an indoor unit as 63. This unit will be in
“priority mode” and will control whether the system is in
heating or cooling.
Set the total number of indoor units on the main board.
IMPORTANT: Wiring for communication shall be 2 in. or
more apart from power source wiring to avoid electric
noise. (Do not insert control/communication and power
source wire in the same conduit.)
Pay attention to the polarity of the communication
wire.
Power/Ground cable
connector
Waterproof
Spacing
Communication
cable
The reusable
strain-relief ties
CAUTION
NEVER CONNECT the main power source to the control
or communication terminal block.
USE AN APPROPRIATE SCREWDRIVER for
tightening the terminal screws. Do not over tighten the
terminal screws.
Failure to follow these procedures may result in personal
injury or damage to equipment.