36
FAXA-SVX01B-EN
electrical
requirements
Electrical Requirements
Follow these guidelines, referring to unit
wiring diagrams and supply power
dimensional information to ensure
correct electrical requirements at the
installation site. Reference supply power
wiring locations on unit submittals or in
the Dimensions and Weights section on
page 13. Specific unit wiring diagrams
are provided on the inside of the control
panel door. Use these diagrams for
connections or trouble analysis.
Supply Power Wiring
It is the installer’s responsibility to provide
power supply wiring to the unit. Wiring
should conform to NEC and all applicable
code requirements. To ensure the unit
supply power wiring is properly sized and
installed, follow the guidelines below:
1. Verify the power supply available is
compatible with the unit nameplate
ratings. The supply power must be
within 10% of the rated voltage listed
on the unit nameplate.
2. Reference the electrical data in Tables
I-ER-1 through I-ER-8. Protect the
electrical service from over current and
short circuit conditions in accordance
with NEC requirements. Size protection
devices according to the electrical date
on the unit nameplate.
3. If the unit is not equipped with an
optional factory-installed disconnect,
you must install a field-supplied
disconnect at or near the unit in
accordance with NEC.
Do not mount a
field-supplied disconnect on the unit.
Reference Figures I-DW-3 and I-DW-4
on pages 16–17 for the electrical
service entrance location.
4. Complete the unit power wiring
connections onto either the main
terminal block or the factory -mounted
non-fused disconnect switch located in
the control panel.
5. Provide proper unit grounding in
accordance with local and national
codes.
Installation
Table I-ER-1. Electrical service sizing data
unit
reheat comp (A)
main comp 1 (B)
main comp 2 (C)
main comp 3 (D)
size
voltage
tons* rla
lra
tons*
rla
lra
tons*
rla
lra
tons*
rla
lra
031
208/60/3
4.5
15
124
9.0
35
222
14.0
48
337
—
—
—
230/60/3
4.5
15
124
9.0
31
251
14.0
43
376
—
—
—
460/60/3
4.5
8
59.6
9.0
16
117
14.0
23
178
—
—
—
040
208/60/3 6.75
23
164
10.0
35
222
15.0
51
337
—
—
—
230/60/3 6.75
23
164
10.0
31
251
15.0
46
376
—
—
—
460/60/3 6.75
11
100
10.0
16
117
15.0
23
178
—
—
—
056
208/60/3
9.0
35
222
14.0
48
337
9.0
35
222
9.0
35
222
230/60/3
9.0
31
251
14.0
43
376
9.0
31
251
9.0
31
251
460/60/3
9.0
16
117
14.0
23
178
9.0
16
117
9.0
16
117
066
208/60/3
9.0
35
222
15.0
51
337
15.0
51
337
15.0
51
337
230/60/3
9.0
31
251
15.0
46
376
15.0
46
376
15.0
46
376
460/60/3
9.0
16
117
15.0
23
178
15.0
23
178
15.0
23
178
*tons refers to nominal R22 tons
electric heat FLA is determined at 208, 240, & 480 volts
Table I-ER-2. Supply fan motor fla
standard efficiency
high efficiency
voltage
1 hp 2 hp 3 hp
5 hp 7.5 hp 10 hp 15 hp
1 hp
2 hp
3 hp
5 hp 7.5 hp 10 hp 15 hp
208/60/3
3.1
5.9
8.7
14.0
22.2
28.2
40.7
3.1
6.1
9.3
14.9
21.3
29.0
40.7
230/60/3
2.8
5.6
8.0
13.2
21.6
28.0
40.6
2.8
5.4
8.2
12.8
20.0
25.8
35.4
460/60/3
1.4
2.8
4.0
6.6
10.8
14.0
20.3
1.4
2.7
4.1
6.4
10.0
12.9
17.7
Table I-ER-5. Condenser fan motors
voltage
fla
208/60/3
3.8
230/60/3
3.6
460/60/3
1.8
Table I-ER-3. Exhaust fan motor fla
standard efficiency
high efficiency
voltage
1 hp 2 hp 3 hp
5 hp 7.5 hp 10 hp 15 hp
1 hp
2 hp
3 hp
5 hp 7.5 hp 10 hp 15 hp
208/60/3
3.1
5.9
8.7
14.0
22.2
28.2
40.7
3.1
6.1
9.3
14.9
21.3
29.0
—
230/60/3
2.8
5.6
8.0
13.2
21.6
28.0
—
2.8
5.4
8.2
12.8
20.0
25.8
—
460/60/3
1.4
2.8
4.0
6.6
10.8
14.0
—
1.4
2.7
4.1
6.4
10.0
12.9
—
Table I-ER-4. Energy wheel motor fla
unit size
031
040
051
066
hp
1
/
2
1
/
2
3
/
4
3
/
4
voltage
208/60/3
2.7
2.7
3.6
3.6
230/60/3
2.4
2.4
3.0
3.0
460/60/3
1.2
1.2
1.5
1.5
Table I-ER-6. Factory-wired convenience outlet
voltage
amps
208/60/3
7.21
230/60/3
6.52
460/60/3
3.26
Table I-ER-7. total gas heat amps with combustion blower
voltage
amps
208/60/3
2.54
230/60/3
2.30
460/60/3
1.15
Table I-ER-8. Control power transformer (loads greater than 1 amp)
voltage
amps
208/60/3
1.20
230/60/3
1.09
Summary of Contents for FADA
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