Engineering Manual

Table Of Contents

:Copper Wire

Terminate multiple power wires of

the same gauge to both sides.

Do not terminate two wires on

one side.

Do not terminate different gauge

wires to a terminal block.

Connecting the Power Wiring / Communications Cable

Best practice dictates using ring or spade terminals to terminate power wiring at the power terminal block. If ring terminals or spade clips are

not available, then:

• Do not terminate different gauge wires to the power terminal block. (Slack in the wiring may generate heat.)

• When terminating wires of the same thickness, follow the instructions demonstrated in the figures below.

Ring Terminal

Power Wiring

Figure 302:Close up of a Typical Ring Terminal.

Figure 303:Close up of the Indoor Unit Termi-

nal Block.

• Firmly attach the wire; secure in a way to prevent external forces from being imparted on

the terminal block.

• Use an appropriately sized screwdriver for tightening the terminals.

• Do not overtighten the connections; overtightening may damage the terminals.

Figure 304:Proper and Improper Power Wiring Connections.

General Information

• There is a risk of fire, electric shock, physical harm or injury, or death if the power wires are not properly terminated and / or firmly

attached.

• Never apply line voltage power to the communications cable terminal block. If contact is made, the PCBs may be damaged.

Always include some allowance in the wiring length when terminating. Provide some slack to facilitate removing the electrical panels while

servicing.

WIRING CONNECTIONS

Due to our policy of continuous product innovation, some specications may change without notication.

WIRING CONNECTIONS | 215

Wiring Connections

MULTI

MAX

MULTI