User Guide

128
PERFORMANCE DATA (cont)
OUTDOOR SOUND POWER (TOTAL UNIT)
LEGEND NOTE: The indoor sound power is available in Bryant’s Electronic Catalog
program (ECAT) for specific operating parameters.
EVAPORATOR-FAN MOTOR EFFICIENCY
*Single phase/3 phase.
NOTES:
1. Convert bhp to watts using the following formula:
2. The EPACT (Energy Policy Act of 1992) regulates energy requirements
for specific types of indoor fan motors. Motors regulated by EPACT
include any general purpose, T-frame (three-digit, 143 and larger),
single-speed, foot mounted, polyphase, squirrel cage induction motors
of NEMA (National Electrical Manufacturers Association) design A and
B, manufactured for use in the United States. Ranging from 1 to 200
Hp, these continuous-duty motors operate on 230 and 460 volt, 60 Hz
power. If a motor does not fit into these specifications, the motor does
not have to be replaced by an EPACT-compliant energy-efficient motor.
Variable-speed motors are exempt from EPACT compliance require-
ments. Therefore, the indoor fan motors for Bryant 581B036-150 units
are exempt from these requirements.
ACCESSORY/FIOP ECONOMI$ER IV AND ECONOMI$ER2 STATIC PRESSURE* (in. wg) — 581B036-072
LEGEND *The static pressure must be added to external static pressure. The sum and
the evaporator entering-air cfm should be used in conjunction with the Fan
Performance tables to determine indoor blower rpm and watts.
ACCESSORY/FIOP ECONOMI$ER IV AND ECONOMI$ER2 STATIC PRESSURE* (in. wg) — 581B090-150
LEGEND *The static pressure must be added to external static pressure. The sum and
the evaporator entering-air cfm should be used in conjunction with the Fan
Performance tables to determine indoor blower rpm and watts.
UNIT
581B
SOUND
RATING
(dB)
OCTAVE BANDS
63 125 250 500 1000 2000 4000 8000
036,048 76 55.9 66.0 64.0 66.2 68.4 64.5 61.7 57.3
060,072 80 59.1 68.9 68.7 71.9 74.0 68.9 65.7 59.0
090,102 82 62.2 69.3 71.5 74.7 76.2 72.9 68.7 61.5
120 84 64.6 71.1 73.3 76.9 77.6 73.7 70.6 63.7
150 86 63.7 69.9 72.5 78.2 81.1 77.3 73.3 66.8
dB — Sound Levels (decibels)
UNIT SIZE 581B EFFICIENCY%
036,048 75
060 74/84*
072 84
090,102 80
120 85
150 87
watts =
bhp (746)
motor efficiency
COMPONENT
CFM
1250 1500 1750 2000 2250 2500 2750 3000
Vertical EconoMi$er IV and EconoMi$er2 0.045 0.065 0.08 0.12 0.145 0.175 0.22 0.255
Horizontal EconoMi$er IV and EconoMi$er2 — — 0.1 0.125 0.15 0.18 0.225 0.275
FIOP — Factory-Installed Option
COMPONENT
CFM
2250 2500 2750 3000 3250 3500 3750 4000 4250 4500 4750 5000 5250 6250
Vertical EconoMi$er IV and
EconoMi$er2
0.06 0.075 0.09 0.115 0.13 0.15 0.17 0.195 0.22 0.25 0.285 0.325 0.36 —
Horizontal EconoMi$er IV and
EconoMi$er2
— 0.1 0.125 0.15 0.18 0.21 0.25 0.275 0.3 0.34 0.388 — — —
FIOP — Factory-Installed Option
581B036-150