Lance-Larkin LK-LVTB User Manual
FPO
LK-LVTB
May 2008
Replaces LW-03, February 2003
Low Velocity Center Mount
Unit Cooler
Technical Guide
Models LWA - Air Defrost
LWE - Electric Defrost
LWG - Hot Gas Defrost
www.larkinproducts.com
Table of Contents
Nomenclature .........................................................................................................................................................................................................2
Features & Benets
Performance Data & Specications
Air Defrost
Electric Defrost
Hot Gas Defrost
Dimensional Data
Replacement Parts by InterLink™
Physical Data
Standard Nozzle Selection
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We have made a commitment to customer needs, innovation and environmental stewardship and have dedicated
ourselves to delivering energy-ecient choices. PSC and EC motors will reduce costs, improve the bottom line and
enhance equipment performance and service life.
Choose the most energy-ecient motor available for evaporators.
The EC motor is an Energy Solutions® option on new Larkin Low Velocity
Center Mount evaporators. Available on all new equipment or as an easyto-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% ecient - 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 eciency, 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
LW A 100 A C
Model Series Model Type Capacity Electrical Code Design Revision
LW = Larkin Low Velocity
Center Mount
A = Air Defrost
E = Electric Defrost
G = Hot Gas Defrost
# x 100 = BTUH A = 115/1/60
B = 208-230/1/60
AH = 115/1/60 (PSC)
BH = 208-230/1/60 (PSC)
AE = 115/1/60 (EC)
BE = 208-230/1/60 (EC)
©2008 Heatcraft Refrigeration Products LLC
2
Features & Benefits
Cabinet
Low height makes it ideal for low ceiling coolers - larger models are only 15 inches tall, allowing for maximum headroom
•
and more product storage
Unit designed to be mounted flush against the ceiling or suspended on rods
•
Heavy gauge grained aluminum cabinet cleans easily and looks attractive
•
Stainless steel screws prevent rust streaks
•
Liquid line solenoid wire harness is factory-installed for quick installation
•
Wire fan guards with PVC coating for durability
•
All electrical components factory wired to terminal board and identified, making it easy to field wire the unit
•
Cabinet design features access panels on each end for easy access to electrical and refrigeration components
•
Fan panel is lightweight and can easily be lowered for easy servicing and installation
•
Expansion valve mounts inside the cabinet
•
Coils
Sweat connections to reduce potential for leaks
•
Coils are dehydrated and sealed at the factory
•
Internally enhanced tubing and fin design for higher efficiency
•
Electric defrost models incorporate high quality tubular heaters and a standard fixed defrost termination thermostat
•
Hot gas defrost models come with a shipped-loose adjustable fan delay and defrost termination thermostat
•
Drain Pan
Double drain pan eliminates drain pan sweating•
Motors
Motor rail is designed for maximum strength and durability
•
Motors are life lubricated and thermal overload protected
•
EC Motors (optional) available factory-installed or as a drop-in replacement through InterLink™ Commercial Refrigeration
•
Parts in 115/1/60 and 208-230/1/60 voltages
PSC are optional for 115/1/60 and 208-230/1/60 voltages
•
PSC are 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
- Pre-charged units come with mounted TXV, liquid line solenoid valve, room thermostat and quick connect fittings
(limited availability)
- Mounted room thermostat option
- 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
•
All LW Series units are UL-listed for US and Canada and meet NSF standards
3
Performance Data
Model LWA Air Defrost | 60 Hz
Capacity Fan Data
Model
LWA050 5,000 1,460 7,500 2,200 10,000 2,930 8,500 2,490 1 725 1,233
LWA075 7,500 2,200 11,250 3,300 15,000 4,390 12,750 3,730 1 730 1,241
LWA100 10,000 2,930 15,000 4,390 20,000 5,860 17,000 4,980 2 1,450 2,465
LWA130 13,000 3,810 19,500 5,710 26,000 7,620 22,100 6,470 2 1,470 2,499
LWA155 15,500 4,540 23,250 6,810 31,000 9,080 26,350 7,720 2 1,460 2,482
LWA180 18,000 5,270 27,000 7,910 36,000 10,540 30,600 8,960 3 2,130 3,621
LWA210
LWA270
LWA340 34,000 9,960 51,000 14,940 68,000 19,920 57,800 16,930 5 3,500 5,950
10°F TD
25°F SST
BTUH Watts BTUH Watts BTUH Watts BTUH Watts
21,000 6,150 31,500 9,230 42,000 12,300 35,700 10,460 4 2,840 4,828
27,000 7,910 40,500 11,860 54,000 15,820 45,900 13,440 4 2,800 4,760
6°C TD
-4°C SST
15°F TD
25°F SST
8°C TD
-4°C SST
50-55°F DB
55% RH 20°F TD
Total Sensible
No. CFM m3h
Model LWA Air Defrost | 50 Hz
Model
LWA050 4,800 1,410 7,100 2,080 9,500 2,780 8,100 2,370 1 660 1,122
LWA075 7,100 2,080 10,700 3,130 14,300 4,190 12,100 3,540 1 660 1,122
LWA100 9,500 2,780 14,300 4,190 19,000 5,570 16,200 4,740 2 1,310 2,227
LWA130 12,400 3,630 18,500 5,420 24,700 7,230 21,000 6,150 2 1,330 2,261
LWA155 14,700 4,310 22,100 6,470 29,500 8,640 25,000 7,320 2 1,320 2,244
LWA180 17,100 5,010 25,700 7,530 34,200 10,020 29,100 8,520 3 1,920 3,264
LWA210
LWA270
LWA340 32,300 9,460 48,500 14,210 64,600 18,920 54,900 16,080 5 3,160 5,372
†
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)
10°F TD
25°F SST
BTUH Watts BTUH Watts BTUH Watts BTUH Watts
20,000 5,860 29,900 8,760 39,900 11,690 33,900 9,930 4 2,560 4,352
25,700 7,530 38,500 11,280 51,300 15,030 43,600 12,770 4 2,530 4,301
6°C TD
-4°C SST
15°F TD
25°F SST
†
Capacity Fan Data
8°C TD
-4°C SST
50-55°F DB
55% RH 20°F TD
Total Sensible
No. CFM m3h
4
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