7
Figure 6. Drain Trap
Elbow
P-Trap
ELECTRICAL CONNECTIONS
WARNING:
To avoid electric shock, personal injury, or death,
turn off the electric power at the disconnect or the
main service panel before making any electrical
connections.
• Electrical connections must be in compliance with
all applicable local codes and ordinances, and with
the current revision of the National Electric Code
(ANSI/NFPA 70).
• For Canadian installations the electrical connections and
grounding shall comply with the current Canadian Electrical
Code (CSA C22.1 and/or local codes).
Pre-Electrical Checklist
√ Verify that the voltage, frequency, and phase of the supply
source match the specifications on the unit rating plate.
√ Verify that the service provided by the utility is sufficient to
handle the additional load imposed by this equipment. Refer
to the unit wiring label for proper high and low voltage wiring.
√ Verify factory wiring is in accordance with the unit wiring
diagram. See Figure 10 (page 18), Figure 11 (page 19),
& Figure 12 (page 20). Inspect for loose connections.
Line Voltage
• It is recommended that the line voltage to the unit be supplied
from a dedicated branch circuit containing the correct fuse or
circuit breaker for the unit.
• An electrical disconnect must be located within sight
of and readily accessible to the unit. This switch shall be
capable of electrically de-energizing the outdoor unit. See unit
data label for proper incoming field wiring. Any other wiring
methods must be acceptable to authority having jurisdiction.
• Provide power supply for the unit in accordance with the unit
wiring diagram, and the unit rating plate.
• Connect the line-voltage leads to the terminals on the contactor
inside the control compartment. Extend leads through power
wiring hole. See Figure 7. Connect L1 & L2 directly to the
contactor.
• Use only copper wire for the line voltage power supply to this
unit. Use proper code agency listed conduit and a conduit
connector for connecting the supply wires to the unit. Use of
rain tight conduit is recommended.
• See the unit wiring label for proper high and low voltage
wiring. Make all electrical connections in accordance with all
applicable codes and ordinances. See Figure 10, Figure 11,
Figure 12, & Figure 13 (page 21).
CAUTION:
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify proper
operation after servicing.
• Units are shipped from the factory wired for 240 volt transformer
operation. For 208V operation, remove the lead from the
transformer terminal marked 240V and connect it to the
terminal marked 208V.
Overcurrent Protection
Overcurrent protection must be provided at the branch circuit
distribution panel and sized as shown on the unit rating label
and according to applicable local codes. Generally, the best
Figure 7. Power Entry
Low Voltage
High Voltage
Strip Heat Voltage
Condensate Drainage
A 3/4” condensate fitting extends out of the side of the unit
as shown in Figure 6. The drain trap, shipped in the electrical
compartment, must be installed to prevent water from collecting
inside the unit.
1. Thread the elbow provided with the unit into the drain
connection until hand tight.
2. Connect the condensate tubing onto the fitting, forming a trap
(Figure 6) near the drain connection.
3. Route the condensate tube from the trap to a suitable drain.
NOTE: For proper drainage, make sure the trap is level to
the ground and tubing outlet is below trap level.
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