10
condensate
Drain
Figure 6. condensate Drain location
line Voltage
• A wiring diagram is located on the inside cover of the
units electrical box. The installer should become familiar
with the wiring diagram before making any electrical
connections to the outdoor 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 field wiring
and minimum size of electrical conductors and circuit
protection must be in compliance with information listed
on the outdoor unit data label. Any other wiring methods
must be acceptable to authority having jurisdiction.
• The outdoor unit requires both power and control circuit
electrical connections. Refer to the wiring diagrams for
identification and location of outdoor unit field wiring
interfaces. See
Figure 10 (page 18)
&
Figure 11 (page
19)
. Make all electrical connections in accordance
with all applicable codes and ordinances.
• 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. See
the unit rating plate for minimum circuit ampacity and
maximum overcurrent protection limits.
• 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.
• Use only copper wire for the line voltage power supply
to this unit as listed in
Table 2
. 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.
• Units are shipped from the factory wired for 230 or 460
volt operation. For 208 - 230V operation, remove the
lead from the transformer terminal marked 240V and
connect it to the terminal marked 208V.
• Optional equipment requiring connection to the power
or control circuits must be wired in strict accordance of
the NEC (ANSI/NFPA 70), applicable local codes, and
the instructions provided with the equipment.
ElEctrical Wiring
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
• 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)
. Inspect for loose connections.
√
Phase balance on 3 phase units must always be checked.
See Unbalanced 3-Phase Supply Voltage section on
page 11
.
table 2. copper Wire Size
coPPEr WirE SizE — aWg
(1% VoltagE DroP)
SuPPlY WirE lEngtH-FEEt
SuPPlY circuit
amPacitY
200
150
100
50
6
8
10
14
15
4
6
8
12
20
4
6
8
10
25
4
4
6
10
30
3
4
6
8
35
3
4
6
8
40
2
3
4
6
45
2
3
4
6
50
2
3
4
6
55
1
2
3
4
60
Wire Size based on N.E.C. for 60° type copper conductors.
condensate Drain
Condensate is removed from the unit through the 3/4”
female pipe fitting located on the front side of the unit.
See
Figure 6
. Install a 2 inch condensate trap in the
drain line of the same size and prime with water. When
connecting rigid drain line, hold the female fitting with a
wrench to prevent twisting.
Do not over tighten!
Refer
to local codes and restrictions for proper condensate
disposal requirements.
