Howe 11ESS-CU User Manual
Rapid Freeze
Modular Remote High-Side Condensing Units
11ESS-CU—31ESS-CU
11ESS-CU—31ESS-CU
Seawater-Cooled Condensing Units
COOL SOLUTIONS SINCE 1912
HOWE Proven. Best Choice.
Howe's 11ESS-CU through
31ESS-CU condensing units are
all engineered with the correct
capacity, components and controls
to match each and every Howe
Rapid Freeze seawater shipboard
flake ice machine. These units
are designed for unexcelled
quality, reliability, and long life.
They are durable, energy efficient,
and available in a wide variety
of refrigerants and electrical
voltages.
STANDARD FEATURES
• High efficiency Copeland
compressors.
• Electrical controls including
compressor contactor and ice
flaker interconnect wiring are
located easily accessible control
box with hinged cover.
• Liquid line filter-drier and sight
glass.
• Water regulating valve (shipped
loose).
SPECIAL FEATURES
• Contact points to connect with
flaker control panel to monitor
low oil pressure, high discharge
pressure, low suction pressure
(pump-down), and compressor
running conditions.
• Suction accumulator
• Oil separator with oil return line.
• Separate high pressure, low
pressure control switches
• Marine duty condensers for
seawater cooling.
11ESS-CU shown.
MADE IN USA!
11ESS-CU—31ESS-CU
W
H
L
CONDENSING UNIT
R-404A
Seawater-Cooled Condensing Units
DIMENSIONS
CONNECTION SIZES CONDENSER CONNECTION SIZES SHIPPING WEIGHT
MODEL W D H W D H SUCTION LIQUID WATER IN WATER OUT FLOW GPM LBS KG
IN
CM
60 CYCLE
11ESS-CU 35 41 39 89 104 99 1
16ESS-CU 35 46 41 89 117 104 1
21ESS-CU 35 46 41 89 117 104 1
31ESS-CU 37 46 43 94 117 109 2
3
/
5/8 1¼ 1¼ 5 415 188
8
5
/
5/8 1¼ 1¼ 7 465 211
8
5
/
7/8 1¼ 1¼ 10 715 325
8
1
/
7/8 1½ 1½ 14 780 354
8
50 CYCLE
11ESS-CU-380 35 41 39 89 104 99 1
16ESS-CU-380 35 46 41 89 117 104 1
21ESS-CU-380 35 46 41 89 117 104 2
31ESS-CU-380 37 55 43 94 139 109 2
3
/
5/8 1¼ 1¼ 5 430 195
8
5
/
5/8 1¼ 1¼ 7 560 254
8
1
/
7/8 1½ 1½ 10 780 354
8
1
/
7/8 1½ 1½ 14 865 393
8
ELECTRICAL
60 CYCLE 50 CYCLE
COMPRESSOR UNIT COMPRESSOR UNIT
VOLTAGE MODEL RLA LRA MCA MOP VOLTAGE MODEL RLA LRA MCA MOP
208-230/3/60 11ESS-CU 25.4 161 31.7 50 380/3/50 11ESS-CU-14S 10.8 77 13.5 20
16ESS-CU 28.3 161 35.3 60 16ESS-CU-14S 15. 106 20.9 30
21ESS-CU 37.7 215 47.2 80 21ESS-CU-14S 23.6 139 29.5 50
31ESS-CU 47.2 278 59.0 100 31ESS-CU-14S 28.9 187 36.1 60
460/3/60 11ESS-CU 12.0 80 15.0 25
16ESS-CU 14.2 83 17.7 30
21ESS-CU 16.7 106 20.9 35
31ESS-CU 23.6 139 29.5 50
Suction accumulator is provided with Howe furnished condensing unit.
11ESS-CU_31ESS-CU | © 2014 Howe Corporation | 9/14
1650 N. Elston Ave., Chicago, IL 60642-1585 | 773 235 0200 | Fax 773 235 0269
howecorp.com | howeinfo@howecorp.com
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