Unit must be electrically grounded in accordance with local codes or in the absence of local codes with the National Electric Code, ANSI/NFPA No. 70 (latest edition) or CSA C22.2 Part 1 (latest edition).
Power supply to the unit must comply with all applicable codes and NEC or CEC. A fused disconnect switch should be field provided for the unit. The switch must be separate from all other circuits. If any of the wire supplied with the unit must be replaced, replacement wire must be of the type shown on the wiring diagram.
Electrical wiring must be sized to carry minimum circuit ampacity marked on the unit. USE COPPER CONDUCTORS ONLY. Each unit must be wired with a separate branch circuit and be properly fused.
WARNING
Unit is equipped with a single−pole contactor. Line voltage is present at all components when unit is not in operation. Disconnect all remote electric power supplies before opening access panel. Unit may have multiple power supplies. Failure to disconnect all power supplies could result in personal injury or death.
CAUTION
When connecting electrical power and control wir- ing to the unit, waterproof type connectors MUST be used so that water or moisture cannot be drawn into the unit during normal operation.
WARNING
Unit must be grounded in accordance with national and local codes. Failure to ground unit properly can result in personal injury or death.
See figure 6 for typical field wiring connections and figure 7 for typical unit wiring diagram.
Optional Electric Heat
Optional electric heat is available and must be purchased separately. Install the electric heat section as outlined in
the installation instructions packaged with the electric heat section.
Thermostat
The room thermostat should be located on an inside wall where it will not be subject to drafts, sun exposure or heat from electrical fixtures or appliances. Follow manufacturer’s instructions enclosed with thermostat for general installation procedure. Color coded insulated wires (# 18 AWG) should be used to connect thermostat to unit.
Typical Single−Phase Unit Wiring Connections
Figure 6
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