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Adjustment Slots
(Both Ends of Unit)
Fig. 11 — Drain Pan Slope Adjustment
UNIT
VOLTAGE
208/230
FAS150
460
575
208/230
FAS180
460
FHS180
575
NOTE(S):
a
Installation with Accessory Electric Heaters: Size the Field Power Wiring between the heater TB1 and the FAS/FHS indoor fan motor per NEC Article 430-28 (1) or (2)
(depends on length of conduit between heater enclosure and FAS/FHS power entry location). Install wires in field-installed conduit.
b
Motors are designed for satisfactory operation within 10% of normal voltage shown. Voltages should not exceed the limits shown in the Voltage Limits column.
c
Minimum circuit amps (MCA) and maximum overcurrent protection (MOCP) values are calculated in accordance with NEC Article 440.
d
Motor FLA values are established in accordance with Underwriters Laboratories (UL). Standard 1995.
max voltage deviation from average voltage
% Voltage
= 100 x
Imbalance
Example: Supply voltage is 230-3-60
AB = 224 v
A
B
C
BC = 231 v
AC = 226 v
MOTOR
(224 + 231 + 226)
Average Voltage =
Determine maximum deviation from average voltage.
(AB) 227-224 = 3 v
(BC) 231-227 = 4 v
(AC) 227-226 = 1 v
Maximum deviation is 4 v.
Determine percent of voltage imbalance.
FASFHS150-180-01SI
PVC Stub Unit
Drain Connection
Table 10 — Electrical Data — Two Speed Motors
VOLTAGE LIMITS
IFM
TYPE
Min
STD
187
MED
187
HIGH
187
STD
414
MED
414
HIGH
414
STD
518
MED
518
HIGH
518
STD
187
MED
187
HIGH
187
STD
414
MED
414
HIGH
414
STD
518
MED
518
HIGH
518
average voltage
681
=
=
227
3
3
Specifications subject to change without notice.
Fan Motors and Drives
Motor and drive packages are factory installed in all units. The
motor and drive packages consist of the following items:
1 — fan motor
1 — adjustable motor pulley
1 — fan pulley
2 — matched fan belts
(FAS150/180, FHS180 units)
For instructions on changing fan rotation, changing drive
speeds and adjusting drives, see "Pulley and Drive Adjust-
ment" on page 27.
Power Supply and Wiring
Check the unit data plate to ensure that available power supply
matches electrical characteristics of the unit. Provide a discon-
nect switch with an integrated lock-out feature of size required
to provide adequate fan motor starting current. See Table 10
for unit electrical data.
b
FAN MOTOR
Max
kW
Hp
253
2.9
2.16
253
2.9
2.16
253
3.7
2.76
506
2.9
2.16
506
2.9
2.16
506
3.7
2.76
632
3.7
2.76
632
3.7
2.76
632
5.0
3.73
253
3.7
2.76
253
3.7
2.76
253
5.0
3.73
506
3.7
2.76
506
3.7
2.76
506
5.0
3.73
632
3.7
2.76
632
3.7
2.76
632
5.0
3.73
% Voltage Imbalance = 100x
This amount of phase imbalance is satisfactory as it is below the
maximum allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than 2%,
contact your local electric utility company immediately.
LEGEND
FLA
— Full Load Amps
MCA
— Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
a
POWER SUPPLY
FLA
MCA
d
8.6
11.0
8.6
11.0
10.8
14.0
3.8
5.0
3.8
5.0
4.9
7.0
4.5
6.0
4.5
6.0
8.0
10.0
10.8
14.0
10.8
14.0
18.0
23.0
4.9
7.0
4.9
7.0
9.1
12.0
4.5
6.0
4.5
6.0
8.0
10.0
4
= 1.78%
227
c
MOCP
15
15
20
15
15
15
15
15
15
20
20
40
15
15
20
15
15
15
15
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