bn-LOPTB April 2008 Replaces BN-LOPTB, August 2004
low profile unit coolers Technical Guide Models ADT | Air Defrost • LET/LLE | Electric Defrost • HGT | Hot Gas Defrost
www.thecoldstandard.com
Walk-in Evaporators – Low Profiles (Coolers and Freezers) Nomenclature Example:
LET
040
Model Family
Capacity x 100 = BTUH (10°F TD)
FAMILY
LET/LLE
• Design features easy front access to both electrical and refrigeration components • Textured aluminum cabinets • Design optimizes space for easier installation and servicing • Beacon II™ compatible • Liquid-line solenoid wire harness comes standard on unit • Drain pan design features large drain line fitting (3/4" MPT) for better drainage, located on back of the unit • Schrader valve on suction header • Fixed defrost termination/fan delay switch and heater limit switch • UL-listed, UL-listed for Canada, and meets NSF standards
B
K
Electric Code
Vintage Revision
B = 208-230/1/60 C = 208-230/3/60 M = 460/1/60
Low or Medium Temperature Low Profile Walk-in Evaporator with Electric Defrost (6 FPI) Net Dimensions (in.) Approx. List Price Model Voltage Ship Wt. ($US) Height Depth Length (lbs.)
LET035BK LET035CK LET035MK LET040BK* LET040CK LET040MK LET047BK* LET047CK LET047MK LET065BK* LET065CK LET065MK LET075BK* LET075CK LET075MK LET090BK* LET090CK LET090MK LET120BK* LET120CK LET120MK LET140BK* LET140CK LET140MK LET160BK* LET160CK LET160MK LET180BK* LET180CK LET180MK LET200BK* LET200CK* LET200MK LET240BK* LET240CK* LET240MK LET280BK* LET280CK LET280MK
1,788 1,887 2,036 1,891 1,955 2,105 2,129 2,268 2,418 2,540 2,777 3,076 2,667 2,856 3,157 2,867 3,104 3,406 3,585 3,821 4,271 4,189 4,443 4,895 4,777 5,012 5,614 5,407 5,714 6,314 6,087 6,324 7,075 6,865 7,103 8,005 7,921 8,283 9,183
208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60
15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15
29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 45.5 45.5 45.5 45.5 45.5 45.5 45.5 45.5 45.5 61.5 61.5 61.5 61.5 61.5 61.5 77.5 77.5 77.5 77.5 77.5 77.5 93.5 93.5 93.5 109.5 109.5 109.5 109.5 109.5 109.5
40 40 40 40 40 40 42 42 42 58 58 58 64 64 64 64 64 64 80 80 80 84 84 84 104 104 104 108 108 108 204 204 204 234 234 234 234 234 234
LLE041BK LLE041CK LLE041MK LLE068BK LLE068CK LLE068MK LLE080BK LLE080CK LLE080MK LLE102BK* LLE102CK LLE102MK LLE136BK* LLE136CK LLE136MK LLE170BK LLE170CK LLE170MK LLE204BK LLE204CK LLE204MK LLE235BK LLE235CK LLE235MK
1,717 1,821 1,970 2,798 2,936 3,086 3,046 3,148 3,298 3,546 3,782 4,235 4,681 4,922 5,521 5,931 6,167 6,920 6,694 6,944 7,847 7,756 8,055 8,958
208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60 208-230/1/60 208-230/3/60 460/1/60
15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15
15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15
29.5 29.5 29.5 45.5 45.5 45.5 45.5 45.5 45.5 61.5 61.5 61.5 77.5 77.5 77.5 93.5 93.5 93.5 109.5 109.5 109.5 109.5 109.5 109.5
42 42 42 64 64 64 64 64 64 80 80 80 104 104 104 204 204 204 234 234 234 234 234 234
Low or Medium Temperature Low Profile Walk-in Evaporator with Electric Defrost (4 FPI)
For ordering information see page 25.
* Model numbers are normally in stock.
February 1, 2008 Bohn Refrigeration Products List Prices
FOR OPTIONS GO TO PAGE 25-31
Performance Data Model LET/LLE Electric Defrost | 60 Hz Capacity
4 Fins Per Inch
6 Fins Per Inch
Model LET035 LET040 LET047 LET065 LET075 LET090 LET120 LET140 LET160 LET180 LET200 LET240 LET280 LLE041 LLE068 LLE080 LLE102 LLE136 LLE170 LLE204 LLE235
Fan Data
10°F TD -20°F SST BTUH
6°C TD -29°C SST Watts
No.
CFM
m3H
3,500 4,000 4,700 6,500 7,500 9,000 12,000 14,000 16,000 18,000 20,000 24,000 28,000 4,100 6,800 8,000 10,200 13,600 17,000 20,400 23,500
1,025 1,170 1,380 1,900 2,200 2,640 3,520 4,100 4,690 5,280 5,860 7,030 8,200 1,200 2,000 2,340 2,990 3,990 4,980 5,980 6,880
1 1 1 2 2 2 3 3 4 4 5 6 6 1 2 2 3 4 5 6 6
700 700 650 1,400 1,300 1,300 2,100 1,950 2,600 2,600 3,250 3,900 3,900 690 1,380 1,380 2,170 2,760 3,450 4,140 4,140
1,189 1,189 1,104 2,379 2,209 2,209 3,568 3,313 4,418 4,418 5,522 6,627 6,627 1,172 2,345 2,345 3,687 4,690 5,862 7,035 7,035
Capacity Correction Factors For Electric and Hot Gas Defrost Units Saturated Suction +20 -10 -20 -30 Temperature °F Saturated Suction -7 -23 -29 -34 Temperature °C Multiply Capacity 1.15 1.04 1.00 0.90 By
Model LET/LLE Electric Defrost | 50 Hz † Capacity
4 Fins Per Inch
6 Fins Per Inch
Model
†
LET035 LET040 LET047 LET065 LET075 LET090 LET120 LET140 LET160 LET180 LET200 LET240 LET280 LLE041 LLE068 LLE080 LLE102 LLE136 LLE170 LLE204 LLE235
Fan Data
10°F TD -20°F SST BTUH
6°C TD -29°C SST Watts
No.
CFM
m3H
3,325 3,800 4,465 6,175 7,125 8,550 11,400 13,300 15,200 17,100 19,000 22,800 26,600 3,895 6,460 7,600 9,690 12,920 16,150 19,380 22,325
974 1,113 1,308 1,809 2,087 2,504 3,339 3,896 4,452 5,009 5,565 6,678 7,791 1,141 1,892 2,226 2,838 3,784 4,731 5,677 6,539
1 1 1 2 2 2 3 3 4 4 5 6 6 1 2 2 3 4 5 6 6
630 630 586 1,260 1,170 1,170 1,891 1,756 2,341 2,341 2,927 3,512 3,512 621 1,243 1,243 1,954 2,485 3,107 3,728 3,728
1,070 1,070 995 2,142 1,989 1,989 3,213 2,984 3,978 3,978 4,973 5,967 5,967 1,056 2,111 2,111 3,320 4,223 5,279 6,334 6,334
For EC motors, use 60 Hz capacity and airflow values (Units with EC motors operating at 50 Hz will not see a reduction in performance due to the electronic control of the motor)
Table of Contents Nomenclature..........................................................................................................................................................................................................2 Features & Benefits................................................................................................................................................................................................3 Performance Data & Specifications Air Defrost.....................................................................................................................................................................................................4-5 Electric Defrost............................................................................................................................................................................................6-7 Hot Gas Defrost...........................................................................................................................................................................................8-9 Physical Data...................................................................................................................................................................................................10-11 Dimensional Data.................................................................................................................................................................................................12 Hot Gas Reverse Cycle Kits.........................................................................................................................................................................13-14 3-Pipe Hot Gas Defrost.......................................................................................................................................................................................15 Replacement Parts by InterLink™...................................................................................................................................................................16 Standard Nozzle Selection................................................................................................................................................................................17
We have made a commitment to customer needs, innovation and environmental stewardship and have dedicated ourselves to delivering energy-efficient choices. PSC and EC motors will reduce costs, improve the bottom line and enhance equipment performance and service life.
Choose the most energy-efficient motor available for evaporators. The EC motor is an Energy Solutions® option on new Bohn Low Profile evaporators. Available on all new equipment or as an easy-to-install, drop-in replacement aftermarket part from InterLink™ Commercial Refrigeration Parts. Because they’re a drop-in replacement for existing shaded pole and PSC motors, installation is quick and easy. It’s a high impact, quick payback solution for reducing costs and achieving green initiatives without replacing the entire system. EC motors by InterLink are up to 75% efficient - that’s a 51-59% increase over shaded pole motors and a 30-35% increase over permanent-split capacitor (PSC) motors. With all of this added efficiency, you can count on more energy savings and lower operational costs while taking a step in the right direction toward conserving our planet’s resources. To learn more about EC motors, visit www.interlinkparts.com/ec.
Nomenclature ADT Model Series ADT = Air defrost LET = Electric defrost, 6 FPI LLE = Electric defrost, 4 FPI HGT = Hot gas defrost
120 Capacity # x 100 = BTUH
A
K
Electrical Code
Design Revision
A = 115/1/60 B = 208-230/1/60 C = 208-230/3/60 M = 460/1/60 AH = 115/1/60 (PSC) BH = 208-230/1/60 (PSC) AE = 115/1/60 (EC) BE = 208-230/1/60 (EC) CE = 208-230/3/60 (EC) ©2008 Heatcraft Refrigeration Products LLC
Features & Benefits Cabinet • • • • • • •
Minimal height of the low profile series makes it ideal for low ceiling coolers Cabinet design features front access panels on each side for easy access to electrical and refrigeration components All electrical components factory wired to terminal board and identified, making it easy to field wire the unit Sweat connections to reduce potential for leaks Internal panels are isolated for quiet operation Liquid line solenoid wire harness is factory-installed for quick installation Pre-drilled holes on the back of the unit for room thermostat
Coil • • • • •
Internally enhanced tubing and fin design for higher efficiency Coil heater slots have been enlarged for easier installation and replacement Reduced heater wattages Hot gas loop on bottom of coil for easier access is standard for hot gas defrost models Fixed defrost termination for electric, adjustable defrost termination for hot gas
Drain Pan • Large diameter drain hole (3/4" ID) is located on the back of the unit • Extended drain pan heaters for more uniform defrost throughout the drain pan and additional heat in end compartments • On 4-6 fan models, drain pan has a lanyard for easy and safe access
Motors • Motors plug into wiring harness for easier servicing • EC motors available factory-installed or as a drop-in replacement through InterLink™ Commercial Refrigeration Parts in 115/1/60, 208-230/1/60 and 208-230/3/60 unit voltages • PSC and PSC (Totally Enclosed) motors for 115/1/60, 208-230/1/60 and 460/1/60 unit voltages • PSC motors or EC motors required for 50 Hz operation
Options • Unit Configurations: mounted components, pre-assembled, pre-charged and Beacon II™ - Units available with mounted TXV and mounted TXV / solenoid valve - Pre-assembled units come with mounted TXV, liquid line solenoid valve and room thermostat. Available in a master liquid line configuration - Pre-charged units come with mounted TXV, liquid line solenoid valve, room thermostat and quick connect fittings - Various room thermostat variations including rear mount and front access versions - Beacon II units come with electronic expansion valves, pressure transducer, temperature sensors and Beacon control board • Most models available with glycol circuiting (see glycol product brochure) • Units available with stainless steel housing and drain pan • Units available with copper fins. Air defrost units also available with polyester coated fins or various coil coatings options • Units available with insulated drain pan
Specifications Model LET/LLE Electric Defrost | 60 Hz Shaded Pole Motor
4 Fins Per Inch
6 Fins Per Inch
Model LET035 LET040 LET047 LET065 LET075 LET090 LET120 LET140 LET160 LET180 LET200 LET240 LET280 LLE041 LLE068 LLE080 LLE102 LLE136 LLE170 LLE204 LLE235
HP 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15
208-230/1/60
PSC, PSC-TE Motor 208-230/1/60
EC Motor
460/1/60
208-230/1/60
Amps
Watts
Amps
Watts
Amps
Watts
Amps
Watts
1.0 1.0 1.0 2.0 2.0 2.0 3.0 3.0 4.0 4.0 5.0 6.0 6.0 1.0 2.0 2.0 3.0 4.0 5.0 6.0 6.0
122 122 122 244 244 244 366 366 488 488 610 732 732 122 244 244 366 488 610 732 732
0.5 0.5 0.5 1.0 1.0 1.0 1.5 1.5 2.0 2.0 2.5 3.0 3.0 0.5 1.0 1.0 1.5 2.0 2.5 3.0 3.0
91 91 91 182 182 182 273 273 364 364 455 546 546 91 182 182 273 364 455 546 546
0.4 0.4 0.4 0.8 0.8 0.8 1.2 1.2 1.6 1.6 2.0 2.4 2.4 0.4 0.8 0.8 1.2 1.6 2.0 2.4 2.4
117 117 117 234 234 234 351 351 468 468 585 702 702 117 234 234 351 468 585 702 702
0.5 0.5 0.5 1.0 1.0 1.0 1.5 1.5 2.0 2.0 2.5 3.0 3.0 0.5 1.0 1.0 1.5 2.0 2.5 3.0 3.0
59 59 59 118 118 118 177 177 236 236 295 354 354 59 118 118 177 236 295 354 354
Defrost Heaters Watts 900 900 900 1,800 1,800 1,800 2,700 2,700 3,600 3,600 4,500 5,400 5,400 900 1,800 1,800 2,700 3,600 4,500 5,400 5,400
230/1/60
230/3/60
460/1/60
Total Amps
3.9 3.9 3.9 7.8 7.8 7.8 11.7 11.7 15.7 15.7 19.6 23.5 23.5 3.9 7.8 7.8 11.7 15.7 19.6 23.5 23.5
2.3 2.3 2.3 4.5 4.5 4.5 6.8 6.8 9.0 9.0 11.3 13.6 13.6 2.3 4.5 4.5 6.8 9.0 11.3 13.6 13.6
2.0 2.0 2.0 3.9 3.9 3.9 5.9 5.9 7.8 7.8 9.8 11.7 11.7 2.0 3.9 3.9 5.9 7.8 9.8 11.7 11.7
Model LET/LLE Electric Defrost | 50 Hz PSC Motor
4 Fins Per Inch
6 Fins Per Inch
Model LET035 LET040 LET047 LET065 LET075 LET090 LET120 LET140 LET160 LET180 LET200 LET240 LET280 LLE041 LLE068 LLE080 LLE102 LLE136 LLE170 LLE204 LLE235
220/1/50
HP 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15
EC Motor 380/1/50
220/1/50
Amps
Watts
Amps
Watts
Amps
Watts
0.5 0.5 0.5 1.0 1.0 1.0 1.5 1.5 2.0 2.0 2.5 3.0 3.0 0.5 1.0 1.0 1.5 2.0 2.5 3.0 3.0
65 65 65 130 130 130 195 195 260 260 325 390 390 65 130 130 195 260 325 390 390
0.4 0.4 0.4 0.8 0.8 0.8 1.2 1.2 1.6 1.6 2.0 2.4 2.4 0.4 0.8 0.8 1.2 1.6 2.0 2.4 2.4
82 82 82 164 164 164 246 246 328 328 410 492 492 82 164 164 246 328 410 492 492
0.5 0.5 0.5 1.0 1.0 1.0 1.5 1.5 2.0 2.0 2.5 3.0 3.0 0.5 1.0 1.0 1.5 2.0 2.5 3.0 3.0
59 59 59 118 118 118 177 177 236 236 295 354 354 59 118 118 177 236 295 354 354
Defrost Heaters Watts 823 823 823 1,647 1,647 1,647 2,470 2,470 3,294 3,294 4,117 4,941 4,941 823 1,647 1,647 2,470 3,294 4,117 4,941 4,941
220/1/50
220/3/50
380/1/50
Total Amps
3.7 3.7 3.7 7.5 7.5 7.5 11.2 11.2 15.0 15.0 18.7 22.5 22.5 3.7 7.5 7.5 11.2 15.0 18.7 22.5 22.5
2.2 2.2 2.2 4.3 4.3 4.3 6.5 6.5 8.6 8.6 10.8 13.0 13.0 2.2 4.3 4.3 6.5 8.6 10.8 13.0 13.0
1.6 1.6 1.6 3.2 3.2 3.2 4.9 4.9 6.5 6.5 8.1 9.7 9.7 1.6 3.2 3.2 4.9 6.5 8.1 9.7 9.7
Physical Data Model ADT Air Defrost Model
No. of Fans
ADT040 ADT052 ADT065 ADT070 ADT090 ADT104 ADT120 ADT130 ADT140 ADT156 ADT180 ADT208 ADT260 ADT312 ADT370
1 1 1 2 2 2 2 2 3 3 3 4 5 6 6
Approx. Net Wt.
Connections (in.) Coil Inlet OD
Suction ID
External Equalizer OD
Drain MPT
lbs.
kg
1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2
5/8 5/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/8 1-1/8 1-1/8 1-1/8 1-3/8
1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4
3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4
28 31 34 45 48 49 51 53 63 67 69 82 103 124 127
13 15 16 21 22 23 24 25 29 31 32 38 47 57 58
Model LET/LLE Electric Defrost
4 Fins Per Inch
6 Fins Per Inch
Model
10
LET035 LET040 LET047 LET065 LET075 LET090 LET120 LET140 LET160 LET180 LET200 LET240 LET280 LLE041 LLE068 LLE080 LLE102 LLE136 LLE170 LLE204 LLE235
No. of Fans 1 1 1 2 2 2 3 3 4 4 5 6 6 1 2 2 3 4 5 6 6
Approx. Net Wt.
Connections (in.) Coil Inlet OD
Suction ID
External Equalizer OD
Drain MPT
lbs.
kg
1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2
5/8 5/8 5/8 5/8 5/8 7/8 7/8 7/8 1-1/8 1-1/8 1-1/8 1-1/8 1-1/8 5/8 7/8 7/8 7/8 1-1/8 1-1/8 1-1/8 1-1/8
1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4
3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4
24 26 29 43 45 48 60 62 81 84 101 121 124 28 44 47 59 80 100 120 123
11 12 14 20 21 22 28 29 37 39 46 55 57 13 21 22 27 37 46 55 56
Dimensional Data
Dimensional Data For All Models Air Defrost Model 6 FPI 040 052 065 070 090 104 120 130 140 156 180 208 260 312 370
Electric and Hot Gas Defrost Model 6 FPI 4 FPI 035 040 047 065 075 090 120 140 160 180 200 240 280
041 068 080 102 136 170 204 235
No. of Fans 1 1 1 2 2 2 2 2 3 3 3 4 4 5 6 6
Dimensions A
B
D
in.
mm
in.
mm
in.
mm
in.
mm
29.50 29.50 29.50 45.50 45.50 45.50 45.50 45.50 61.50 61.50 61.50 77.50 77.50 93.50 109.50 109.50
749.3 749.3 749.3 1,155.7 1,155.7 1,155.7 1,155.7 1,155.7 1,562.1 1,562.1 1,562.1 1,968.5 1,968.5 2,374.9 2,781.3 2,781.3
17.25 17.25 17.25 33.25 33.25 33.25 33.25 33.25 49.25 49.25 49.25 65.25 65.25 81.25 97.25 97.25
438.1 438.1 438.1 845 845 845 845 845 1,251 1,251 1,251 1,657 1,657 2,064 2,470 2,470
48.63 48.63 48.63
1,235.1 1,235.1 1,235.1
32.63 48.63 48.63
828.7 1,235.1 1,235.1
NOTE: Hanger brackets will accept 3/8” / 9.5 mm hanger rods.
12
C
