Condensate Drainage; Electrical Connections; Pre-Electrical Checklist; Line Voltage - Nordyne P3RA SERIES User's Manual & Installation Instructions

Condensate Drainage

A 3/4" condensate fi tting extends out of the side of the
unit (Figure 3). 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 fi tting, forming
a trap 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.
Elbow
Figure 7. Drain Trap

Line Voltage

Low Voltage
Figure 8. Power Entry
8
P-Trap

ELECTRICAL CONNECTIONS

WARNING:
To avoid risk of electrical shock, personal
injury, or death, disconnect all electrical power
to the unit before performing any maintenance
or service. The unit may have more than one
electrical supply.
Label all wires prior to disconnection when
servicing the unit. Wiring errors can cause
improper and dangerous operation.
• All electrical connections must be in compliance with
all applicable local codes, ordinances, and current
national codes.

Pre-Electrical Checklist

 Verify that the voltage, frequency, and phase of the
supply source match the specifi cations on the unit
rating plate.
 Verify that the service provided by the utility is suffi cient
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 (Figures 12 or 13, pages 14 & 15). Inspect for
loose connections.
 Phase balance on 3 phase units must always be
checked. See Unbalanced 3-Phase Supply Voltage
section (page 9).
Line Voltage
• A wiring diagram is located on the inside cover of the
electrical box of the unit. The installer should become
familiar with the wiring diagram before making any
electrical connections to 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 unit.
• Line voltage to the unit should be supplied from a
dedicated branch circuit containing the correct fuse
or circuit breaker for the unit. Incoming fi eld wiring
and minimum size of electrical conductors and circuit
protection must be in compliance with information listed
on the unit data label. 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 (Figure 8). Connect L1 & L2 directly
to the contactor. For 3 phase models, connect L3 to
the contactor.
• The unit requires both power and control circuit electrical
connections. Refer to the wiring diagram / schematic