Convenience Outlets, Fire Hazard, All units

leads according to required operation of the convenience outlet. If an always-energized convenience outlet operation is desired, connect the source leads to the line side of the unit-mounted disconnect. (Check with local codes to ensure this method is acceptable in your area.) If a de-energize via unit disconnect switch operation of the convenience outlet is desired, connect the source leads to the load side of the unit disconnect. On a unit without a unit-mounted disconnect, connect the source leads to the factory connection leads (pigtails) in the unit’s main control box (see Fig. 8).

All units except 208/230-v units are factory wired for the voltage shown on the nameplate. If the 208/230-v unit is to be connected to a 208-v power supply, the control transformer must be rewired by moving the black wire with the ¼-in. female spade connector from the 230-v connection and moving it to the 208-v¼-in. male terminal on the primary side of the transformer. Refer to unit label diagram for to line-side information. Field power wires will be connected line-side pressure lugs on the power terminal block or at factory- installed option non-fused disconnect.

Field power wires are connected to the unit at the leads to the factory connection leads (pigtails) in the unit’s main control box (see Fig. 8) or at factory-installed option non-fused disconnect switch. Max wire size is #4 AWG (copper only).

NOTE: TEST LEADS - Unit may be equipped with short leads (pigtails) on the field line connection points on the optional disconnect switch. These leads are for factory run-test purposes only; remove and discard before connect- ing field power wires to unit connection points.

FIRE HAZARD

Failure to follow this warning could result in intermittent operation or performance satisfaction.

Do not connect aluminum wire between disconnect switch and condensing unit. Use only copper wire.

(See Fig. 7.)

ELECTRIC

DISCONNECT

SWITCH

COPPER

WIRE ONLY

ALUMINUM

WIRE

Fig. 7 — Disconnect Switch and Unit

Units Without Factory-Installed Disconnect —

When installing units, provide a disconnect switch per NEC (National Electrical Code) of adequate size. Disconnect sizing data is provided on the unit informative plate. Locate on unit cabinet or within sight of the unit per national or local codes. Do not cover unit informative plate if mounting the disconnect on the unit cabinet.

Units with Factory-Installed Disconnect —

The factory-installed option disconnect switch is located in a weatherproof enclosure located under the main control box. The manual switch handle is accessible through an opening in the access panel.

All units -

All field wiring must comply with NEC and all local codes. Size wire based on MCA (Minimum Circuit Amps) on the unit informative plate. See Fig. 8 for power wiring connections to the unit power terminal block and equipment ground.

Provide a ground-fault and short-circuit over-current protection device (fuse or breaker) per NEC Article 440 (or local codes). Refer to unit informative data plate for MOCP (Maximum Over-current Protection) device size.

Splice Terminals

(field supplied)

BLK

YEL

BLU

DISCONNECT

Ground Lug

LEGEND

Factory Power Connection Lead

Field Power Supply Conductor

Fig. 8 — Power Wiring Connections

All field wiring must comply with the NEC and local requirements.

Affix the crankcase heater warning sticker to the unit disconnect switch.