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6. Indoor and Outdoor Power and Communication Wiring Requirements
CAUTION
This unit must be properly grounded and protected by a circuit breaker. The ground wire for the unit must not be connected
to a gas or water pipe, a lightning conductor or a telephone ground wire.
Do not connect power wires to the outdoor unit until all other wiring and piping connections have been completed.
Install all wiring at least 3 feet (1 m) away from televisions, radios or other electronic devices in order to avoid the possibil
-
ity of interference with the unit operation.
Do not install the unit near a lighting appliance that includes a ballast. The ballast may affect remote control operation.
WARNING
Isolate the power supply before accessing unit electrical terminals.
Install unit so that unit disconnect is accessible.
Follow all local and national codes, as well as this installation instruction, during installation. Do NOT overload electrical
circuit, as this may lead to failure and possible fire.
Use specified wiring and cable to make electrical connections. Clamp cables securely and make sure that connections
are tight to avoid strain on wiring. Insecure wiring connections may result in equipment failure and risk of fire. Wiring must
be installed so that all cover plates can be securely closed.
In the U.S.A., wiring must conform with current local codes and the current National Electric Code (NEC). In Canada, wiring
must conform with current local codes and the current Canadian Electrical Code (CEC).
6.1. Overview
Refer to unit nameplate for minimum circuit ampacity and maximum over-current protection size.
•
All indoor units are powered by the outdoor unit.
• Make all electrical power wiring connections at the outdoor unit.
• Size outdoor unit power per local code and power requirements.
• Connect wiring between indoor and outdoor terminals.
• Refer to unit name plate for rated voltage.
• Be sure to reattach all electrical box covers after connections are complete.
• Follow NEC/CEC standards and all local and state codes during wiring installation.
See “Table 2. Single Zone Mini-Split Wiring Guide” on page 35 and “Table 3. Multi-Zone Installation Wiring Requirements”
on page 36 for wiring requirements.
