Electrical Wiring - Goodman CPLE090 Installation & Operating Instructions Manual

Figure 6.
Figure 6.
Condenser Above the Evaporator When the
located 4' or greater above the evaporator section, suction line
oil trap is to be used at the base of the riser. An additional oil
trap is to be added for each 20' of vertical riser. See Figure 7
below
Filter Drier and Sight Glass. A bi-flow liquid line filter drier is factory
installed. A Sight Glass/Moisture indicator is provided with the
unit. This is to be field installed on the liquid line as close as
practical to the service valve.
Holding Charge. The CPLE series is factory shipped with a 2 lb.
R-22 holding charge. When welding, introduce an inert gas (i.e.
nitrogen) through the tubing to prevent the formation of copper
oxide inside the tubing.
Evaporator Coil TXV. For improved refrigerant management, the
evaporator coil is to be equipped with a thermal expansion valve
(TXV).
Liquid Line Solenoid. It is recommended that a field supplied
liquid line solenoid be added to the liquid line as close as possible
to the evaporator coil. The solenoid is to be wired to close when
the compressor stops to prevent refrigerant migration in the "OFF"
cycle.
Evacuation and Charging. See the "Evacuation and Charging"
section Page 7 of this manual for these instructions.
XI

Electrical Wiring

WARNING
Before servicing or installing this equipment, the electrical power
to this unit MUST be in the "OFF" position. CAUTION: more than
one disconnect may exist. Failure to observe this warning may
result in an electrical shock that can cause personal injury.
The unit MUST have an uninterrupted, unbroken electrical ground
to minimize the possibility of personal injury if an electrical fault
should occur. The electrical ground circuit may consist of an
appropriately sized electrical wire connecting the ground lug in
PITCH SUCTION INE T
CONDENSING UNIT 1/
EVERY 10' OF LINE
condenser is
Figure 7.
the unit control box wire to the building electrical service panel.
Other methods of grounding are permitted if performed in
accordance with the "National Electric Code" (NEC)/"American
National Standards Institute" (ANSI)/"National Fire Protection
Association" (NFPA) 70 and local/state codes. In Canada,
electrical grounding is to be in accordance with the Canadian
Electric Code CSA C22.1. Failure to observe this warning can
result in electrical shock that can cause serious personal injury
or death.
To avoid the risk of fire or equipment damage use only copper
conductors.
Inspection of the Building Electrical Service. This unit is designed
for 3-phase operation. DO NOT OPERATE ON A SINGLE PHASE
POWER SUPPLY. Measure the power supply to the unit. The
supply voltage MUST be in agreement with the unit nameplate
power requirements and within the range shown below, Table 4:
Minimum Supply Maximum Supply
Model
CPLE090-3
CPLE090-4
CPLE120-3
CPLE120-4
Voltage Balance The supply voltage shall be unbalance (phase
to phase) within 2%. To calculate the percentage of voltage
unbalance use the following formula:
Percentage
= 100 x
Voltage
Unbalance
Example
Ave. Voltage
Max. Deviation from Avg.
% Voltage Unbalance
Determine Wire Size The selection of the appropriate supply
wire size is important to the operation of the equipment. When
selecting the wire size, the following are important elements of
the decision:
The wire size is sufficient to carry the Minimum Circuit
Ampacity (MCA). The unit MCA can be found on the
equipment S&R plate and the following table.
Table 5.
CPLE090-3
CPLE090-4
CPLE120-3
CPLE120-4
5
WARNING
Table 4.
Voltage Voltage
187 253
414 506
187 253
414 506
Max. Voltage Deviation From
Avg. Voltage
Avg. Voltage
L1 - L2 = 220V
L2 - L3 = 216V
= (220+216+213) / 3
= 649 / 3
= 220 - 216 = 4
= 100 x (4 / 216)
= 400 / 216
Model MCA
37.8
18.8
43.3
22.2