Specifications

4
MODEL NUMBER NOMENCLATURE
ARI* CAPACITIES
LEGEND
*Air-Conditioning & Refrigeration Institute.
†Applies only to units with capacity of 65,000 Btuh or less.
**IPLV is not applicable to single-compressor units.
NOTES:
1. Rated in accordance with ARI Standard 210/240 (036-120 units)
or 360 (150 units) and 270 (036-150 units).
2. Ratings are net values, reflecting the effects of circulating fan heat.
Ratings are based on:
Cooling Standard:
80 F db, 67 wb indoor entering-air tempera-
ture and 95 F db outdoor entering-air temperature.
IPLV Standard:
80 F db, 67 F wb indoor entering-air temperature
and 80 F db outdoor entering-air temperature.
UNIT
551B
NOMINAL
TONS
STANDARD
CFM
NET COOLING CAP
(Btuh)
TOTAL
kW
SEER† EER
SOUND
RATING
(dB)
036
3 1200 36,000 3.21 13.00 11.20 76
048
4 1450 47,000 4.25 13.00 11.05 76
060
5 1750 61,000 5.55 13.00 11.00 80
UNIT
551B
NOMINAL
TONS
STANDARD
CFM
NET COOLING CAP
(Btuh)
TOTAL
kW
EER
SOUND
RATING
(dB)
IPLV
072
6 2100 74,000 6.70 11.00 80 **
090
7
1
/
2
3000 90,000 8.18 11.00 82 11.6
102
8
1
/
2
3000 102,000 9.44 10.80 82 10.9
120
10 3200 120,000 10.91 11.00 84 11.4
150
12
1
/
2
4300 139,000 14.04 9.80 86 9.9
dB —
Decibels
EER —
Energy Efficiency Ratio
IPLV —
Integrated Part-Load Value
SEER —
Seasonal Energy Efficiency Ratio
Voltage Designation
J – 208/230-1-60
P – 208/230-3-60
E – 460-3-60
T – 575-3-60
551B E X 090 000 A A
551B – Packaged Rooftop
High Efficiency
Cooling Unit
X – No Heat Installed
(Field-installed electric heaters available)
Factory-Installed Options*
Nominal Tons
036 – 3 090 – 7-1/2
048 – 4 102 – 8-1/2
060 – 5 120 – 10
072 – 6 150 – 12-1/2
Electric Heaters
000 – No Factory-Installed Electric Heaters
*Refer to unit price pages for ordering codes and factory-installed options.
551B036-120
Units Only
551B150
Unit Only