7
English
Wiring example and how to set the remote
controller
Connection of power supply, transmission and remote
controller wiring
How to connect wiring (See figure 9)
(1)
Remove the control box cover (2 screws).
1
2
1
Screws
2
Control box cover
(2) Insert the power supply and ground wires into the conduit pipe,
and secure the conduit to the hole in the control box using the
lock nut, as shown below.
4
3
6
7
5
3
Hole in the control box
4
Lock nut (field supply)
5
Conduit pipe (field supply)
6
Conduit (field supply)
7
Opening for transmission
wiring
(3) Connect the power supply and ground wires to the terminal block
for power supply.
(4)
In doing this, pull the wires inside through the conduit pipe and fix
them securely with the supplied clamp.
(5) Give enough slack to the wires between the clamp and terminal
block for power supply.
(6) Pull the transmission and remote controller wires inside through
the opening for transmission wiring and connect them to the
terminal block for transmission wiring (no polarity).
Securely fix the wires with the supplied clamp.
(7) Give enough slack to the wires between the clamp and the
terminal block for transmission wiring.
(8)
Attach the control box cover as before.
(9)
After all the wiring connections are done, fill in any gaps in the
wiring openings with putty or sealing pad (small) thus to prevent
small animals or dirt from entering the unit from outside and
causing short circuit in the control box.
Precautions
1
Observe the notes mentioned below when wiring to the power
supply terminal block.
- Use a round crimp-style terminal for insulation sleeve for
connection to the terminal block for wiring the unit. When none is
available, follow the instructions below.
1
2
3
1
Round crimp-style terminal
2
Attach insulation sleeve
3
Wiring
- Do not connect wires of different gauge to the same power supply
terminal. (Looseness in the connection may cause overheating.)
- When clamping wiring, use the clamps (supplied with the unit) to
prevent outside force being exerted on the wiring connections.
Tie up firmly. When doing the wiring, make sure the wiring is neat
and does not cause the control box to stick up. Close the cover
firmly.
- When connecting wires of the same gauge, connect them
according to the figure.
Use the specified electric wire. Connect the wire securely to the
terminal. Lock the wire down without applying excessive force to
the terminal. Use tightening torques according to the table below.
Unit: ft·lbf (N·m)
Tightening torque (N·m)
Terminal block for unit transmission and remote
controller
0.58-0.72 (0.79~0.97)
Terminal block for power supply
0.87-1.06 (1.18~1.44)
-
When attaching the control box cover, make sure not to pinch any
wires.
2
Do not connect wires of different gauge to the same grounding
terminal. Looseness in the connection may deteriorate the
protection.
3
Remote controller wiring and transmission wiring should be located
at least 1-15/16 in. (50 mm) away from power supply wiring. Not
following this guideline may result in malfunction due to electrical
noise.
4
For the remote controller wiring, refer to the installation manual
supplied with the remote controller.
NOTE
The customer has the ability to select the remote
controller thermistor.
5
Never connect the power supply wiring to the terminal block for
transmission wiring. This mistake could damage the entire system.
6
Use only specified wires and tightly connect wires to the terminals.
Be careful that wires do not place external stress on the terminals.
Keep wiring in neat order so that they do not obstruct other
equipment such as popping open the service cover. Make sure the
cover closes tight. Incomplete connections could result in
overheating, and in the worst case, electric shock or fire.
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