LK-MPTBMay 2007
(Replaces MM-02, 10/02)
Medium Profile Unit CoolersTechnical Guide
Models MMT, MLT & MLG
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NomenclatureM MT6 130 B A
Vintage
VoltageA = 115/1/60 M = 460/1/60B = 208-230/1/60 N = 110/1/50C = 208-230/3/60 Q = 220/1/50D = 460/3/60 R = 380/1/50E = 575/3/60 V = 380/3/50L = 575/1/60
Larkin Medium ProfileUnit Coolers
Capacity x 100
Fins Per Inch/DefrostMT6 = 6 FPI Air DefrostLT6 = 6 FPI Electric DefrostLT4 = 4 FPI Electric DefrostLG6 = 6 FPI Hot Gas DefrostLG4 = 4 FPI Hot Gas Defrost
Table of Contents Features & Benefits ............................................................................................................................................. 3
60 Hz Performance ......................................................................................................................................... 4-5
50 Hz Performance ............................................................................................................................................. 6
Physical Data ..................................................................................................................................................... 7-8
Dimensional Data ............................................................................................................................................... 9
Nozzle Selection ................................................................................................................................................10
Replacement Parts ............................................................................................................................................11
©2007 Heatcraft Refrigeration Products LLC
PSC Motors are an Energy Solutions® feature and are optimized to help you save money by increasing energy efficiency
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Features and Benefits
These innovative and efficient units serve a variety of commercial and industrial applications. With sizes ranging from 10,000 to 71,000 BTUH and a modular design only 24 inches high, these quality unit coolers are the easiest to install and the most economical to operate.
Features• All electrical components factory wired to
terminal board and identified, making it easy to field wire the unit
• All electric defrost models have adjustable defrost termination and fan delay thermostat
• Front-hinged drain pan for easy access• Schrader valve provided for suction
pressure measurement• External equalizer connection• Terminal board design simplifies wiring
between the evaporator and condensing units
• Thermally protected, lifetime-lubricated PSC motors in 115, 208-230 and 460 volts
• Reliable nickel steel alloy defrost heater elements
• Heavy gauge textured aluminium cabinet• All internal panels have been “isolated”
which provides for quiet unit operation• Motors plug into wiring harness for
easier servicing• Heaters are coil face mounted for
easy accessOptions
• UL approved totally enclosed motors• Duct fitting for air sock• Wire fan guards for air diffusion• Available in stainless steel cabinets and/or
drain pan• Factory mounted components: pre-
assembled TXV, liquid line solenoid valve and room thermostat
• Glycol circuiting• Copper fin or coil coatings• 575 volt units
InnovativeThermo-Flex™
Coil DesignLarkin’s innovative coil design utilizes a unique approach to coil expansion that virtually eliminates the possibility of leaks at tube sheets and coil supports.
The Thermo-Flex™ coil design for the unit cooler* allows the coil to “flex” during periods of defrost resulting in expansion of the coil surface. By eliminating the possibility of wear at critical stress areas, the integrity and longevity of the unit are dramatically increased. The result is a product which greatly enhances overall system reliability and reduces risk of costly refrigerant loss.
Larkin offers a five-year limited guarantee against leaks at tube sheets and center supports for all medium profile unit coolers.
Internal grooved tube for increasedheat transfer efficiency
Factory installed liquid line solenoid wiring harness for faster installation
* Patent number 5,584,340
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60 Hz Performance
Model
Capacity BTUH/watts
10°F TD 25°F SST
Fan Data Motor Data
CFM/m3h No. Diameterin./mm
Air Throw ft./m*†
HPTotal Amps
Extended(Std.)
Diffused(Opt.)
115/ 1/60
208-230 /1/60
460/ 1/60
575/ 3/60
MMT6130 13,000 3,810 2,300 3,910 1 18 457 65 20 50 15 1/4 4.0 1.8 1.0 0.7
MMT6155 15,500 4,540 2,200 3,740 1 18 457 65 20 50 15 1/4 4.0 1.8 1.0 0.7
MMT6245 24,500 7,180 4,600 7,820 2 18 457 65 20 50 15 1/4 8.0 3.6 2.0 1.4
MMT6300 30,000 8,790 4,400 7,480 2 18 457 65 20 50 15 1/4 8.0 3.6 2.0 1.4
MMT6365 36,500 10,690 6,900 11,730 3 18 457 65 20 50 15 1/4 12.0 5.4 3.0 2.1
MMT6450 45,000 13,180 6,600 11,220 3 18 457 65 20 50 15 1/4 12.0 5.4 3.0 2.1
MMT6510 51,000 14,940 9,200 15,640 4 18 457 65 20 50 15 1/4 16.0 7.2 4.0 2.8
MMT6600 60,000 17,570 8,800 14,960 4 18 457 65 20 50 15 1/4 16.0 7.2 4.0 2.8
MMT6710 71,000 20,790 10,500 17,850 5 18 457 65 20 50 15 1/4 - 9.0 5.0 3.5* Standard molded fan guards allow for extended air throw; optional wire guards promote air diffusion† Air throw data based on 12-ft. high ceilings with no obstructions where velocity drops to 50 FPM
Table 1. Model MMT6, 60 Hz, Air Defrost
Model
CapacityBTUH/watts
-10°F TD-20°F SST
Fan Data Motor Data Defrost Heaters
CFM/m3h No.Dia
meterin./mm
Air Throw ft./m*†
HP208-230
/1/60
460/ 1/60
575/ 3/60 Watts
Total Amps
Extended (Std.)
Diffused(Opt.)
208-230/1/60
208-230/3/60
460/ 1/60
460/ 3/60
575/ 3/60
MLT6 Models 6 Fins Per InchMLT6101 10,100 2,960 2,350 4,000 1 18 457 65 20 50 15 1/4 1.8 1.0 0.7 2,730 11.9 8.2 5.9 4.1 3.3
MLT6140 14,000 4,100 2,250 3,830 1 18 457 65 20 50 15 1/4 1.8 1.0 0.7 2,730 11.9 8.2 5.9 4.1 3.3
MLT6190 19,000 5,570 4,700 7,990 2 18 457 65 20 50 15 1/4 3.6 2.0 1.4 5,350 23.3 16.0 11.6 8.3 6.6
MLT6260 26,000 7,620 4,500 7,650 2 18 457 65 20 50 15 1/4 3.6 2.0 1.4 5,350 23.3 16.0 11.6 8.3 6.6
MLT6310 31,000 9,080 7,050 11,990 3 18 457 65 20 50 15 1/4 5.4 3.0 2.1 7,750 33.7 23.2 16.8 12.0 9.6
MLT6390 39,000 11,420 6,750 11,480 3 18 457 65 20 50 15 1/4 5.4 3.0 2.1 7,750 33.7 23.2 16.8 12.0 9.6
MLT6430 43,000 12,590 8,800 14,960 4 18 457 65 20 50 15 1/4 7.2 4.0 2.8 10,200 - 30.5 22.2 15.8 12.6
MLT6520 52,000 15,230 8,400 14,280 4 18 457 65 20 50 15 1/4 7.2 4.0 2.8 10,200 - 30.5 22.2 15.8 12.6
MLT6620 62,000 18,160 10,000 17,000 5 18 457 65 20 50 15 1/4 9.0 5.0 3.5 11,600 - 34.7 25.2 18.1 14.4
MLT4 Models 4 Fins Per InchMLT4100 10,000 2,930 2,325 3,950 1 18 457 65 20 50 15 1/4 1.8 1.0 0.7 2,730 11.9 8.2 5.9 4.1 3.3
MLT4165 16,500 4,830 4,900 8,330 2 18 457 65 20 50 15 1/4 3.6 2.0 1.4 5,350 23.3 16.0 11.6 8.3 6.6
MLT4220 22,000 6,440 4,650 7,910 2 18 457 65 20 50 15 1/4 3.6 2.0 1.4 5,350 23.3 16.0 11.6 8.3 6.6
MLT4250 25,000 7,320 7,350 12,500 3 18 457 65 20 50 15 1/4 5.4 3.0 2.1 7,750 33.7 23.2 16.8 12.0 9.6
MLT4330 33,000 9,670 6,975 11,860 3 18 457 65 20 50 15 1/4 5.4 3.0 2.1 7,750 33.7 23.2 16.8 12.0 9.6
MLT4370 37,000 10,840 9,100 15,470 4 18 457 65 20 50 15 1/4 7.2 4.0 2.8 10,200 - 30.5 22.2 15.8 12.6
MLT4440 44,000 12,890 8,700 14,790 4 18 457 65 20 50 15 1/4 7.2 4.0 2.8 10,200 - 30.5 22.2 15.8 12.6
MLT4530 53,000 15,520 10,350 17,600 5 18 457 65 20 50 15 1/4 9.0 5.0 3.5 11,600 - 34.7 25.2 18.1 14.4
* Standard molded fan guards allow for extended air throw; optional wire guards promote air diffusion† Air throw data based on 12-ft. high ceilings with no obstructions where velocity drops to 50 FPM
Table 2. Models MLT6/MLT4, 60 Hz, Electric Defrost
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60 Hz Performance
Table 3. Models MLG6/MLG4, 60 Hz, Hot Gas Defrost
* Standard molded fan guards allow for extended air throw; optional wire guards promote air diffusion† Air throw data based on 12-ft. high ceilings with no obstructions where velocity drops to 50 FPM
Model
CapacityBTUH/watts
10°F TD-20°F SST
Fan Data Motor Data Drain Pan Heater (Std.)
CFM/m3h No. Dia.in./mm
Air Throw ft./m*†
HPTotal Amps
WattsTotal Amps
Extended (Std.)
Diffused(Opt.)
115/ 1/60
208-230/1/60
460/ 1/60
575/ 3/60
115/1/60
208-230/1/60
460/ 1/60
575/ 3/60
MLG6 Models 6 Fins Per InchMLG6190 19,000 5,570 4,700 7,990 2 18 457 65 20 50 15 1/4 8.0 3.6 2.0 1.4 950 8.3 4.1 2.1 1.7
MLG6260 26,000 7,620 4,500 7,650 2 18 457 65 20 50 15 1/4 8.0 3.6 2.0 1.4 950 8.3 4.1 2.1 1.7
MLG6310 31,000 9,080 7,050 11,990 3 18 457 65 20 50 15 1/4 12.0 5.4 3.0 2.1 1,350 11.7 5.9 2.9 2.3
MLG6390 39,000 11,420 6,750 11,480 3 18 457 65 20 50 15 1/4 12.0 5.4 3.0 2.1 1,350 11.7 5.9 2.9 2.3
MLG6430 43,000 12,590 8,800 14,960 4 18 457 65 20 50 15 1/4 16.0 7.2 4.0 2.8 1,800 15.7 7.8 3.9 3.1
MLG6520 52,000 15,230 8,400 14,280 4 18 457 65 20 50 15 1/4 16.0 7.2 4.0 2.8 1,800 15.7 7.8 3.9 3.1
MLG4 Models 4 Fins Per InchMLG4165 16,500 4,830 4,900 8,330 2 18 457 65 20 50 15 1/4 8.0 3.6 2.0 1.4 950 8.3 4.1 2.1 1.7
MLG4220 22,000 6,440 4,650 7,910 2 18 457 65 20 50 15 1/4 8.0 3.6 2.0 1.4 950 8.3 4.1 2.1 1.7
MLG4250 25,000 7,320 7,350 12,500 3 18 457 65 20 50 15 1/4 12.0 5.4 3.0 2.1 1,350 11.7 5.9 2.9 2.3
MLG4330 33,000 9,670 6,975 11,860 3 18 457 65 20 50 15 1/4 12.0 5.4 3.0 2.1 1,350 11.7 5.9 2.9 2.3
MLG4370 37,000 10,840 9,100 15,470 4 18 457 65 20 50 15 1/4 16.0 7.2 4.0 2.8 1,800 15.7 7.8 3.9 3.1
MLG4440 44,000 12,890 8,700 14,790 4 18 457 65 20 50 15 1/4 16.0 7.2 4.0 2.8 1,800 15.7 7.8 3.9 3.1
Saturated Suction Temperature °F +20 -10 -20 -30 -40
Saturated Suction Temperature °C -7 -23 -29 -34 -40
Multiply Capacity By 1.15 1.02 1.00 0.90 0.80
Chart 1. Capacity Correction Factors for Electric and Hot Gas Defrost Units
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50 Hz Performance
* Standard molded fan guards allow for extended air throw; optional wire guards promote air diffusion† Air throw data based on 12-ft. high ceilings with no obstructions where velocity drops to 50 FPM
Table 5. Model MMT6, 50 Hz, Air Defrost
Model
Capacity BTUH/watts
6°C TD-4°C SST
Fan Data Motor Data
CFM/m3h No. Dia.in./mm
Air Throw ft./m*†
HPTotal Amps
Extended(Std.)
Diffused(Opt.)
110/ 1/50
220/1/50
380/ 1/50
MMT6130 11,960 3,500 2,070 3,520 1 18 457 60 18.5 45 13.5 1/4 4.0 1.8 1.0
MMT6155 14,260 4,180 1,980 3,370 1 18 457 60 18.5 45 13.5 1/4 4.0 1.8 1.0
MMT6245 22,540 6,600 4,140 7,040 2 18 457 60 18.5 45 13.5 1/4 8.0 3.6 2.0
MMT6300 27,600 8,080 3,960 6,730 2 18 457 60 18.5 45 13.5 1/4 8.0 3.6 2.0
MMT6365 33,580 9,840 6,210 10,560 3 18 457 60 18.5 45 13.5 1/4 12.0 5.4 3.0
MMT6450 41,400 12,130 5,940 10,100 3 18 457 60 18.5 45 13.5 1/4 12.0 5.4 3.0
MMT6510 46,920 13,740 8,280 14,080 4 18 457 60 18.5 45 13.5 1/4 16.0 7.2 4.0
MMT6600 55,200 16,170 7,920 13,460 4 18 457 60 18.5 45 13.5 1/4 16.0 7.2 4.0
MMT6710 65,320 19,130 9,450 16,070 5 18 457 60 18.5 45 13.5 1/4 - 9.0 5.0
Model
CapacityBTUH/watts
6°C TD-29°C SST
Fan Data Motor Data Defrost Heaters
CFM/m3h No. Dia.in./mm
Air Throw ft./m*†
HPTotal Amps
WattsTotal Amps
Extended (Std.)
Diffused(Opt.)
220/1/50
380/ 1/50
220/1/50
380/3/50
MLT6 Models 6 Fins Per InchMLT6101 8,832 2,590 2,115 3,600 1 18 457 60 18.5 45 13.5 1/4 1.8 1.0 2,510 11.4 3.4
MLT6140 12,236 3,580 2,025 3,440 1 18 457 60 18.5 45 13.5 1/4 1.8 1.0 2,510 11.4 3.4
MLT6190 16,652 4,880 4,230 7,190 2 18 457 60 18.5 45 13.5 1/4 3.6 2.0 4,910 22.3 6.9
MLT6260 22,724 6,660 4,050 6,890 2 18 457 60 18.5 45 13.5 1/4 3.6 2.0 4,910 22.3 6.9
MLT6310 27,140 7,950 6,345 10,790 3 18 457 60 18.5 45 13.5 1/4 5.4 3.0 7,090 32.2 9.9
MLT6390 34,132 10,000 6,075 10,330 3 18 457 60 18.5 45 13.5 1/4 5.4 3.0 7,090 32.2 9.9
MLT6430 37,628 11,020 7,920 13,460 4 18 457 60 18.5 45 13.5 1/4 7.2 4.0 9,340 - 13.1
MLT6520 45,448 13,310 7,560 12,850 4 18 457 60 18.5 45 13.5 1/4 7.2 4.0 9,340 - 13.1
MLT6620 54,188 15,870 9,000 15,300 5 18 457 60 18.5 45 13.5 1/4 9.0 5.0 10,620 - 15.0
MLT4 Models 4 Fins Per InchMLT4100 8,740 2,560 2,093 3,560 1 18 457 60 18.5 45 13.5 1/4 1.8 1.0 2,510 11.4 3.4
MLT4165 14,444 4,230 4,410 7,500 2 18 457 60 18.5 45 13.5 1/4 3.6 2.0 4,910 22.3 6.9
MLT4220 19,228 5,630 4,185 7,120 2 18 457 60 18.5 45 13.5 1/4 3.6 2.0 4,910 22.3 6.9
MLT4250 21,896 6,410 6,615 11,250 3 18 457 60 18.5 45 13.5 1/4 5.4 3.0 7,090 32.2 9.9
MLT4330 28,888 8,460 6,278 10,670 3 18 457 60 18.5 45 13.5 1/4 5.4 3.0 7,090 32.2 9.9
MLT4370 32,384 9,490 8,190 13,920 4 18 457 60 18.5 45 13.5 1/4 7.2 4.0 9,340 - 13.1
MLT4440 38,456 11,260 7,830 13,310 4 18 457 60 18.5 45 13.5 1/4 7.2 4.0 9,340 - 13.1
MLT4530 46,368 13,580 9,315 15,840 5 18 457 60 18.5 45 13.5 1/4 9.0 5.0 10,620 - 15.0* Standard molded fan guards allow for extended air throw; optional wire guards promote air diffusion† Air throw data based on 12-ft. high ceilings with no obstructions where velocity drops to 50 FPM
Table 6. Models MLT6/MLT4, 50 Hz, Electric Defrost
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Physical Data
Model No. ofFans
Connections (in.) Approx. Net Weight
(lbs./kg)Coil Inlet
(ODF)Suction
(ODF)External Equalizer
(ODF)Drain(FPT)
MMT6130 1 1/2 7/8 1/4 3/4 115 52
MMT6155 1 1/2 1-1/8 1/4 3/4 123 56
MMT6245 2 7/8 1-1/8 1/4 3/4 134 61
MMT6300 2 7/8 1-1/8 1/4 3/4 148 67
MMT6365 3 7/8 1-3/8 1/4 3/4 200 91
MMT6450 3 1-1/8* 1-3/8 1/4 3/4 227 103
MMT6510 4 1-1/8* 1-5/8 1/4 3/4 230 104
MMT6600 4 1-1/8* 1-5/8 1/4 3/4 255 116
MMT6710 5 1-1/8* 1-5/8 1/4 3/4 285 129
Table 7. Model MMT6, Air Defrost, Physical Data
Table 8. Models MLT6/MLT4, Electric Defrost, Physical Data
* Supplied with adapter to 7/8 ODF
Model No. ofFans FPIConnections (in.) Approx.
Net Weight(lbs./kg)
Coil Inlet(ODF)
Suction(ODF)
External Equalizer(ODF)
Drain(FPT)
MLT6 Models 6 Fins Per InchMLT6101 1 6 1/2 7/8 1/4 3/4 118 54
MLT6140 1 6 1/2 7/8 1/4 3/4 126 57
MLT6190 2 6 7/8 1-1/8 1/4 3/4 138 63
MLT6260 2 6 1-1/8* 1-3/8 1/4 3/4 153 69
MLT6310 3 6 1-1/8* 1-3/8 1/4 3/4 210 95
MLT6390 3 6 1-1/8* 1-3/8 1/4 3/4 237 108
MLT6430 4 6 1-1/8* 1-5/8 1/4 3/4 267 121
MLT6520 4 6 1-1/8* 1-5/8 1/4 3/4 300 136
MLT6620 5 6 1-1/8* 1-5/8 1/4 3/4 338 153
MLT4 Models 4 Fins Per InchMLT4100 1 4 1/2 7/8 1/4 3/4 125 56
MLT4165 2 4 7/8 1-1/8 1/4 3/4 136 62
MLT4220 2 4 1-1/8* 1-3/8 1/4 3/4 151 68
MLT4250 3 4 1-1/8* 1-3/8 1/4 3/4 207 94
MLT4330 3 4 1-1/8* 1-3/8 1/4 3/4 234 106
MLT4370 4 4 1-1/8* 1-5/8 1/4 3/4 262 119
MLT4440 4 4 1-1/8* 1-5/8 1/4 3/4 295 134
MLT4530 5 4 1-1/8* 1-5/8 1/4 3/4 332 151
* Supplied with adapter to 7/8 ODF
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Physical Data
Table 9. Models MLG6/MLG4, Hot Gas Defrost, Physical Data
* Supplied with adapter to 7/8 ODF** Supplied with electric drain pan heater as standard, hot gas pan is optional
ModelNo. of
FansFPI
Connections (in.)Approx.
Net Weight(lbs./kg)
Coil InletODF
SuctionODF
External EqualizerODF
DrainFPT
Side PortODF
Hot Gas Pan Conns.**
ODF
MLG6 Models 6 Fins Per InchMLG190 2 6 7/8* 1-1/8 1/4 3/4 1/2 7/8 175 79
MLG260 2 6 1-1/8* 1-3/8 1/4 3/4 5/8 7/8 190 86
MLG310 3 6 1-1/8* 1-3/8 1/4 3/4 5/8 7/8 210 95
MLG390 3 6 1-1/8* 1-3/8 1/4 3/4 5/8 7/8 237 108
MLG430 4 6 1-1/8* 1-5/8 1/4 3/4 5/8 7/8 267 121
MLG520 4 6 1-1/8* 1-5/8 1/4 3/4 5/8 7/8 300 136
MLG4 Models 4 Fins Per InchMLG165 2 4 7/8* 1-1/8 1/4 3/4 1/2 7/8 173 78
MLG220 2 4 1-1/8* 1-3/8 1/4 3/4 5/8 7/8 188 85
MLG250 3 4 1-1/8* 1-3/8 1/4 3/4 5/8 7/8 207 94
MLG330 3 4 1-1/8* 1-3/8 1/4 3/4 5/8 7/8 234 106
MLG370 4 4 1-1/8* 1-5/8 1/4 3/4 5/8 7/8 262 119
MLG440 4 4 1-1/8* 1-5/8 1/4 3/4 5/8 7/8 295 134
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Dimensional Data
Diagram 1. Dimensions for all models
480 mm
450 mm
640 mm
60 mm 390 mm
590 mm
550 mm
Model
6 FPI Models 4 FPI ModelsDimensions (in./mm)
Defrosts Defrosts
Elec. Hot Gas Elec. Hot Gas A B C D E FMMT130 MLT6101 - - - 41-5/16 1,050 30-1/4 770 - - - - - - 5-9/16 140
MMT155 MLT6140 - MLT4100 - 41-5/16 1,050 30-1/4 770 - - - - - - 5-9/16 140
MMT245 MLT6190 MLG6190 MLT4165 MLG4165 69-5/16 1,760 58-1/4 1,480 - - - - - - 5-9/16 140
MMT300 MLT6260 MLG6260 MLT4220 MLG4220 69-5/16 1,760 58-1/4 1,480 - - - - - - 5-9/16 140
MMT365 MLT6310 MLG6310 MLT4250 MLG4250 97-5/16 2,470 86-1/4 2,190 - - - - - - 5-9/16 140
MMT450 MLT6390 MLG6390 MLT4330 MLG4330 97-5/16 2,470 86-1/4 2,190 - - - - - - 5-9/16 140
MMT510 MLT6430 MLG6430 MLT4370 MLG4370 125-5/16 3,180 114-1/4 2,900 56 1,420 58-1/4 1,480 - - 5-9/16 140
MMT600 MLT6520 MLG6520 MLT4440 MLG4440 125-5/16 3,180 114-1/4 2,900 56 1,420 58-1/4 1,480 - - 5-9/16 140
MMT710 MLT6620 - MLT4530 - 138-13/16 3,530 129-3/4 3,300 51 1,300 53-1/4 1,350 25-1/2 650 5-1/16 130
Table 10. Dimensional Data, all models
NOTES: Evaporator mounting brackets accept up to 1/2” hanger rod
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Nozzle Selection
Table 11. Standard Nozzle Selections (included with unit for field installation)
*Also suitable for R-507, R-502, R-134A, R-401A, R-402A Nozzles sized for 90° - 100°F liquid temp. at expansion valve. Refer to manual H-IM-64 if liquid temp. is not 90° - 100°FConsult Larkin Application Engineering if evaporator TD is not 10° - 15ºF, (room temp. - saturated suction temp.)
Type No. ofFansDistributor Tube (in.)
Model No. ofCircuitsR-404A*Nozzle
R-22NozzleOD Length
AirDefrost
1 3/16 21-1/2130 3 L-1 L-3/4
155 5 L-1 L-3/4
2 3/16 21-1/2245 9 G-2-1/2 G-1-1/2
300 9 G-2-1/2 G-1-1/2
3 3/16 21-1/2365 9 G-3 G-2
450 12 E-4 E-2-1/2
4 3/16 21-1/2510 13 E-5 E-3
600 18 E-5 E-3
5 3/16 21-1/2 710 18 E-6 E-4
ElectricDefrost
1 3/16 21-1/2101 5 L-1-1/2 L-3/4
100/140 6 L-1-1/2 L-1
2 3/16 21-1/2165/190 9 G-2-1/2 G-1-1/2
220/260 12 E-3 E-2
3 3/16 21-1/2250/310 13 E-4 E-2-1/2
330/390 18 E-5 E-3
4 3/16 21-1/2370/430 12 E-5 E-3
440/520 17 E-6 E-4
5 3/16 21-1/2 530/620 17 E-8 E-5
Hot GasDefrost
2 3/16 21-1/2165/190 9 G-2-1/2 G-1-1/2
220/260 12 E-3 E-2
3 3/16 21-1/2250/310 13 E-4 E-2-1/2
330/390 18 E-5 E-3
4 3/16 21-1/2370/430 13 E-5 E-3
440/520 18 E-6 E-4
Caution: Refrigeration system will not perform properly without correct nozzle!
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Replacement Parts
Part Number Description5020-SS Motor 115 V5020-TS Motor 208-230 V4567-T Motor 208-230 V, totally enclosed
25302201 Motor 460 V25304601* Motor 460 V low temp, totally enclosed25308101* Motor 208-230 V low temp, totally enclosed
5599-M Run Capacitor (5 MFD), used with all motors5779-G Run Capacitor (7.5 MFD), used with 25304601 motor only
25399301 Motor 575 V5064-E Motor Mount5130-C Fan Blade
2310022 Fan Guard, molded blue23101802 Fan Guard, blue wire
* Special motors to be used in room ambients -31°F to -55°F
Part Number DescriptionNo. of
Fans40492002 Drain Pan* 140492202 Drain Pan* 240492402 Drain Pan* 340492602 Drain Pan* 440492802 Drain Pan* 540830301 Header Side Panel 1-440830401 Electrical Side Panel 1-440830102 Header Side Panel 540830202 Electrical Side Panel 5
40830902 Header Connection Panel 1-5
92864003 Drain Fitting 1-5
Part Number Description4131-Y Room Thermostat
2890109 Defrost Term. and Fan Delay Thermostat, adjustable type
Part Number Description Voltage Color Code24710301 1 Fan Unit, 530 W 208-230 V Black24710302 2 Fan Units, 950 W 208-230 V Black24710303 3 Fan Units, 1350 W 208-230 V Black24710304 4 Fan Units, 1800 W 208-230 V Black24710305 5 Fan Units, 2000 W 208-230 V Black24710401 1 Fan Unit, 530 W 460 V Red24710402 2 Fan Units, 950 W 460 V Red24710403 3 Fan Units, 1350 W 460 V Red24710404 4 Fan Units, 1800 W 460 V Red24710405 5 Fan Units, 2000 W 460 V Red24710502 2 Fan Units, 950 W 115 V Black, White24710503 3 Fan Units, 1350 W 115 V Black, White24710504 4 Fan Units, 1800 W 115 V Black, White
NOTES: Contact factory for hot gas defrost components not listed
Part Number Description24710201 1 Fan Unit, 550 W24710202 2 Fan Units, 1100 W24710203 3 Fan Units, 1600 W24710204 4 Fan Units, 2100 W24710205 5 Fan Units, 2400 W23308001 Heater Clip (1-3 fans)23308101 Heater Clip (4-5 fans)
* Includes provision to mount drain pan heater
Table 12. Motor/Fan Blade/Guards Table 15. Coil Defrost Heaters (4 per unit)
Table 16. Cabinet Components
Table 13. Electrical Components
Table 15. Drain Pan Defrost Heater (1 per unit)
Commercial Refrigeration Parts
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InterLink is your link to a complete line of dependable and certified commercial refrigeration parts, accessories and innovative electronic controls for all Larkin equipment. At InterLink, we provide our wholesalers with a comprehensive selection of product solutions and innovative technologies for the installed customer base. And every product is built to ensure the same high performance standards with which all Larkin brands are built — backed by a dedicated team to serve every customer need, delivering at the best lead times in the industry.
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Since product improvement is a continuing effort, we reserve the right to make changes in specifications without notice. LK-MPTB-0507 | version 000
A Brand of Heatcraft Refrigeration Products LLC2175 West Park Place Blvd. • Stone Mountain, GA 30087
800.848.9889 • FAX 770.465.5990
www.larkinproducts.com
Mastering the Art of Cold
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