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WIRE SIZE
10
12.5
(AWG)
14
75
60
12
118
95
188
150
10
8
301
241
471
376
6
N/R = NOT RECOMMENDED
Wire ampacity and voltage drop calculation based on copper conductors with 75 degree C insulation per
1996 National Electrical Code (NEC) Conductors in 86 degree F ambient.
See NEC for ampacity derating for higher ambients.
NOTE: This table is provided as a guide only. Wire
sizing may be regulated by local codes. Local inspection
is the final authority on wire sizing.
WARNING
To avoid personal injury, shock, or death,
open the electrical disconnect switch
before electrically connecting the unit.
Wiring must conform with National
Electrical Code (NEC) or Canadian
Electrical Code (CEC) and all local codes.
The wiring diagram for this unit can be found on the control
box cover. Refer to Figure 3 for field wiring connections.
START CAP
(if present)
F
H
C
RUN CAP
W
O
Y
R
C
FIELD WIRING
LOW VOLTAGE CONNECTION
Figure 3
III. Electrical Connections
MAXIMUM ALLOWABLE WIRE LENGTH IN FEET TO LIMIT VOLTAGE DROP TO 2%
MINIMUM CIRCUIT AMPACITY OF OUTDOOR UNIT (MCA)
15
17.5
20
50
43
37
79
68
59
125
107
95
201
172
150
314
269
235
DEFROST
BOARD
CC
PS1
RV
DFS
START RELAY
(if present)
T2
T1
L2
L1
GROUND LUG
FIELD WIRING
HIGH VOLTAGE CONNECTION
22.5
25
27.5
N/R
N/R
N/R
53
47
N/R
83
75
68
134
120
109
209
188
171
Table 1
WARNING
To avoid the risk of fire or equipment
damage, use only copper conductors.
WARNING
Undersized wires can cause poor
equipment performance, equipment
damage, or fire. Consult the NEC, CEC or
a qualified electrician for proper wire size.
NOTE: Local codes usually require that a disconnect
switch be located near the unit. Do not locate the
disconnect switch on the unit itself.
WARNING
To avoid personal injury, shock, or death,
be sure wiring to the unit is properly
grounded.
1. Wire size is important to ensure proper unit operation.
Wire size must be sufficient to carry the minimum
circuit ampacity listed on the unit serial data plate. We
recommend sizing the wires to limit the voltage drop to
a maximum of 2% from the main breaker or fuse panel
to the outdoor unit. Use Table 1 as a guide for wire
gauge and length of run.
2. Route the power supply and ground wires through the
high voltage entrance in the unit. Connect the power
supply wires to the contactor. Connect the ground wire
to the ground lug.
3. Route the low voltage wiring through the low voltage
entrance in the unit. Connect the low voltage wires to
the terminal strip.
4. If an Amana approved room thermostat is not already
present, install one at a suitable indoor location. Con-
sult the instructions packaged with the thermostat for
5
5
30
32.5
35
37.5
N/R
N/R
N/R
N/R
N/R
N/R
N/R
N/R
63
58
54
N/R
100
93
86
157
145
134
125
40
N/R
N/R
N/R
80
75
118
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