MS SeriesUNIT COOLERS

Technical Bulletin

Products that provide lasting solutions.

MS SERIES UNIT COOLERS 1Specifications subject to change without notice.

Medium Profile Units for Medium Size Walk-In Coolers and Freezers

The MS Series Unit Coolers have a medium profile to accommodate increased air flow formedium refrigeration applications. A galvanized steel cabinet provides long lasting durabilityand strength under most conditions. The MS Series is built for performance with increasedBTUH capacities and heavy-duty construction for your every refrigeration need.

n Medium profile, galvanized steel cabinet.n 20" 1 to 4 fans.n 15,000 to113,170 BTUH @10°TD.n 4, 6, or 7 fins per inch air defrost.n 4, 5, or 6 fins per inch electric (EL) or hot gas (HG) defrost.n 1/2 h.p. ball-bearing motors totally enclosed, internal overload protection with automatic reset,permanently lubricated.

n 230V, 1 or 3, 460V-3, 575V-3 electric defrost models.n 115V, 230V, 1 or 3, 460V-3, 575V-3 air and gas defrost models.n Fan delay and defrost termination thermostat.n Terminal block.n Heater safety thermostat on electric defrost.

Optional Features and Accessories

n Long throw adapters (stainless steel or galvanized) .*n Insulated drain pans.n 230/1 or 460/1 electric defrost pan heaters.n Additional 2% for 575volt room thermostat.*n Mounted thermostatic expansion valve.n Liquid line solenoid valve.*n Suction/liquid heat exchanger.*n Stucco aluminum or stainless steel housing.n Painted housing.n Stainless steel housing.

* Shipped loose.

MS Series Unit Coolers

Hinged Drain PanHinged drain pan easily drops down

for quick service.

Access PanelHinged panel cover provides easy access to electrical connections.

n Stainless steel drain pan.n Glycol circuiting.n Heat reclaim circuiting.n Copper fins.n Coated coils – epoxy or phenolic.n Export crating.n Mounted NEMA 4x non-fused disconnect.n Adj. defrost termination control.n Face split coil.

Krack_MS_Text_082012_2009 8/21/12 6:25 PM Page 1

Heater Voltage

A = 208-230/1/60H = 460/1/60K = 208-230/3/60M = 460/3/60P = 575/3/60

Unit Type

MS = Super Cooler

Fin Spacing

4 FPI 6 FPI5 FPI 7 FPI

Number of Fans

Type of Defrost

A = Air DefrostB = BrineD = Electric with No Pan HeatE = Electric with Electric PanG = 3 Pipe Hot Gas with Hot Gas Drain PanH = 3 Pipe Hot Gas with Electric Drain PanK = 2 Pipe Kool Gas with Kool Gas Drain PanP = 2 Pipe Kool Gas with Electric Drain PanR = Heat Reclaim

Motor Type

A = Shaded Pole Motors B = PSC Motors C = 3 Phase Motors

BTU/h in Hundreds (00)

Motor Voltage

A = 208-230/1/60B = 115/1/60H = 460/1/60K = 208-230/3/60M = 460/3/60P = 575/3/60U = 380/3/50 (not UL)

MS 2 6 A - 367 - C K K

UL ULC

MS Series Unit Coolers

Ordering Information

2 MS SERIES UNIT COOLERSSpecifications subject to change without notice.

Specify When Ordering All Models

n Complete model number. n Liquid refrigerant temperature.n Refrigerant R22, R404A, or R507. n Motor and heater voltage. n Room temperature. n Optional features. n Saturated suction temperature. n Optional accessories.

Model Key

Krack_MS_Text_082012_2009 8/21/12 6:25 PM Page 2

MS Series Unit Coolers

MS SERIES UNIT COOLERS 3Specifications subject to change without notice.

Air Defrost Medium Profile

MEDIUM TEMPERATURE

MODELMS14A-150MS14A-190MS14A-225MS14A-249MS16A-184MS16A-229MS16A-260MS16A-281MS17A-199MS17A-246MS17A-275MS17A-295MS24A-300MS24A-381MS24A-450MS24A-498MS26A-367MS26A-459MS26A-520MS26A-562MS27A-398MS27A-492MS27A-550MS27A-591MS34A-524MS34A-623MS34A-708MS36A-626MS36A-712MS36A-806MS37A-663MS37A-755MS37A-849MS44A-699MS44A-830MS44A-944MS46A-835MS46A-949

MS46A-1075MS47A-885

MS47A-1007MS47A-1132

SHIPPINGWGT.(LBS)142153171184151164182197161174194209247272301326269297328355309342370419369402433402438472419456492493528578538576630560600656

CAP. (BTUH)@ 10° TD +20 SST

15,02019,03022,47024,91018,36022,94026,01028,10019,88024,59027,50029,54030,04038,05044,95049,82036,71045,88052,03056,19039,76049,18055,00059,08052,40062,25070,82062,61071,18080,62066,34075,54084,87069,87083,00094,43083,48094,900

107,49088,450

100,720113,170

AIRFLOW(CFM)4,2004,1204,0003,9204,1204,0403,9403,8504,0804,0003,9003,8008,4008,2408,0007,8408,2408,0807,8807,7008,1608,0007,8007,600

12,13511,50511,32511,89511,04010,99511,70010,99510,90516,18015,34015,10015,86014,72014,66015,60014,66014,540

L57.00057.00057.00057.00057.00057.00057.00057.00057.00057.00057.00057.000

102.000102.000102.000102.000102.000102.000102.000102.000102.000102.000102.000102.000129.000129.000129.000129.000129.000129.000129.000129.000129.000168.000168.000168.000168.000168.000168.000168.000168.000168.000

H 26.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.25026.250

W26.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.625

DIMENSIONS (IN)NO. OFHANGERS

444444444444666666666666888888888101010101010101010

REFRIGCHARGE

578105781057810101315181013151810131518162023162026162023212631212631212631

LIQUID5/85/85/87/85/85/85/87/85/85/85/87/87/87/87/87/87/87/87/87/87/87/87/87/87/87/8

1-3/87/87/8

1-3/87/87/8

1-3/81-3/81-3/81-3/81-3/81-3/81-3/81-3/81-3/81-3/8

SUCTION1-1/81-1/81-1/81-1/81-1/81-1/81-1/81-1/81-1/81-1/81-1/81-1/81-3/81-3/81-3/81-3/81-3/81-3/81-3/81-3/81-3/81-3/81-3/81-3/81-5/81-5/81-5/81-5/81-5/81-5/81-5/81-5/81-5/82-1/82-1/82-1/82-1/82-1/82-1/82-1/82-1/82-1/8

REFRIGERATION CONNECTIONS

Krack_MS_Text_082012_2009 8/21/12 6:25 PM Page 3

MS Series Unit Coolers

Electric Defrost Medium Profile

4 MS SERIES UNIT COOLERSSpecifications subject to change without notice.

LOW TEMPERATURE

SHIPPINGWGT. (LBS)174208186221198236297357317381337406398470425502452534541616578658615700

MODELMS14E-162MS14E-212MS15E-178MS15E-223MS16E-195MS16E-239MS24E-323MS24E-424MS25E-356MS25E-444MS26E-390MS26E-478MS34E-445MS34E-602MS35E-502MS35E-643MS36E-532MS36E-685MS44E-594MS44E-803MS45E-669MS45E-858MS46E-710MS46E-914

-20 SST 16,18021,17017,79022,26019,50023,89032,34042,35035,58044,45039,00047,76044,54060,20050,18064,33053,22068,53059,39080,27066,90085,77070,96091,370

+20 SST19,03024,91020,93026,19022,94028,10038,05049,82041,86052,29045,88056,19052,40070,82059,03075,68062,61080,62069,87094,43078,710

100,91083,480

107,490

AIRFLOW (CFM)4,1203,9204,0603,8904,0403,8508,2407,8408,1207,7808,0807,70012,13511,32512,01511,20511,89510,99516,18015,10016,02014,94015,86014,660

L57.0057.0057.0057.0057.0057.00

102.00102.00102.00102.00102.00102.00129.00129.00129.00129.00129.00129.00168.00168.00168.00168.00168.00168.00

W 26.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.625

H26.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.25

CAP. (BTUH) @ 10˚ TD DIMENSIONS (IN)REFRIGERATION CONNECTIONS

NO. OFHANGERS

444444666666888888101010101010

REFRIGCHARGE

710710710131813181318162316231623213121312131

LIQUID5/87/85/87/85/87/87/87/87/87/87/87/87/8

1-3/87/8

1-3/87/8

1-3/81-3/81-3/81-3/81-3/81-3/81-3/8

SUCTION1-1/81-1/81-1/81-1/81-1/81-1/81-3/81-3/81-3/81-3/81-3/81-3/81-5/81-5/81-5/81-5/81-5/81-5/82-1/82-1/82-1/82-1/82-1/82-1/8

NOTE: Ratings apply for D or E electric defrost.

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MS Series Unit Coolers

MS SERIES UNIT COOLERS 5Specifications subject to change without notice.

Hot Gas Defrost Medium Profile

LOW TEMPERATURE

SHIPPINGWGT. (LBS)174208186221198236297357317381337406398470425502452534541616578658615700

AIRFLOW (CFM)4,1203,9204,0603,8904,0403,8508,2407,8408,1207,7808,0807,70012,13511,32512,01511,20511,89510,99516,18015,10016,02014,94015,86014,660

MODELMS14( )-162MS14( )-212MS15( )-178MS15( )-223MS16( )-195MS16( )-239MS24( )-323MS24( )-424MS25( )-356MS25( )-444MS26( )-390MS26( )-478MS34( )-445MS34( )-602MS35( )-502MS35( )-643MS36( )-532MS36( )-685MS44( )-594MS44( )-803MS45( )-669MS45( )-858MS46( )-710MS46( )-914

-20 SST 16,18021,17017,79022,26019,50023,89032,34042,35035,58044,45039,00047,76044,54060,20050,18064,33053,22068,53059,39080,27066,90085,77070,96091,370

+20 SST19,03024,91020,93026,19022,94028,10038,05049,82041,86052,29045,88056,19052,40070,82059,03075,68062,61080,62069,87094,43078,710

100,91083,480

107,490

L57.0057.0057.0057.0057.0057.00

102.00102.00102.00102.00102.00102.00129.00129.00129.00129.00129.00129.00168.00168.00168.00168.00168.00168.00

W 26.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.62526.625

H26.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.2526.25

CAP. (BTUH) @ 10˚ TD DIMENSIONS (IN)REFRIGERATION CONNECTIONS

NO. OFHANGERS

444444666666888888101010101010

REFRIGCHARGE

710710710131813181318162316231623213121312131

LIQUID5/87/85/87/85/87/87/87/87/87/87/87/87/8

1-3/87/8

1-3/87/8

1-3/81-3/81-3/81-3/81-3/81-3/81-3/8

SUCTION1-2/81-1/81-1/81-1/81-1/81-1/81-3/81-3/81-3/81-3/81-3/81-3/81-5/81-5/81-5/81-5/81-5/81-5/82-1/82-1/82-1/82-1/82-1/82-1/8

HG1/21/21/21/21/21/21/27/81/27/81/27/87/87/87/87/87/87/87/87/87/87/87/87/8

Krack_MS_Text_082012_2009 8/21/12 6:25 PM Page 5

MS Series Unit Coolers

Electric Defrost (D) Heater Data

Electric Defrost with Electric Drain Pan (E) Data

6 MS SERIES UNIT COOLERSSpecifications subject to change without notice.

LOW TEMPERATURE

MODEL

1 FAN – 162,178, 195

1 FAN – 212, 223, 239

2 FAN – 323, 356, 390

2 FAN – 424, 444

3 FAN – 445, 502, 532

3 FAN – 602, 643, 685

4 FAN – 594, 669, 710

4 FAN – 803, 858, 914

AMPS

9.91

12.68

20.28

25.35

25.81

32.26

35.02

43.78*

KW

4.04

5.05

8.08

10.10

10.28

12.85

13.95

17.44*

AMPS

5.07

6.34

10.14

12.68

12.90

16.13

17.51

21.89

KW

4.04

5.05

8.08

10.10

10.28

12.85

13.95

17.44

AMPS

4.42

5.52

8.84

11.05

11.25

14.06

15.26

19.08

KW

4.40

5.50

8.80

11.10

11.20

14.00

15.20

19.00

230/3/60 460/3/60 575/3/60

*Two circuits. Amount shown in chart is total kW and Amps. NOTE: Information required for complete product Model Key – Motor Type, Voltage Code, Heater Voltage Code. Refer to Model Key on page 2.

LOW TEMPERATURE

MODEL

1 FAN – 162,178, 195

1 FAN – 212, 223, 239

2 FAN – 323, 356, 390

2 FAN – 424, 444

3 FAN – 445, 502, 532

3 FAN – 602, 643, 685

4 FAN – 594, 669, 710

4 FAN – 803, 858, 914

AMPS

12.68

15.21

25.35

30.42

32.26

38.71

43.78

52.54*

KW

5.05

6.60

10.10

12.12

12.85

15.42

17.44

20.92*

AMPS

6.34

7.61

12.68

15.21

16.13

19.34

21.89

26.21

KW

5.05

6.60

10.10

12.12

12.85

15.42

17.44

20.90

AMPS

5.52

6.63

11.05

13.35

14.08

16.87

17.51

21.01

KW

5.50

6.60

11.00

13.20

14.00

16.80

19.00

22.80

230/3/60 460/3/60 575/3/60

*Two circuits with 10.46kW and 26.26 Amps each. Amount shown in chart is total kW and Amps. NOTE: Information required for complete product Model Key – Motor Type, Voltage Code, Heater Voltage Code. Refer to Model Key on page 2.

Krack_MS_Text_082012_2009 8/21/12 6:25 PM Page 6

MS Series Unit Coolers

MS SERIES UNIT COOLERS 7Specifications subject to change without notice.

Hot Gas Defrost Drain Pan (H,P) Data

LOW TEMPERATURE

MODEL

1 FAN – 162,178, 195, 212, 223, 239

2 FAN – 323, 356, 390, 424, 444

3 FAN – 445, 502, 532, 602, 643, 685

4 FAN – 594, 669, 710, 803, 858, 914

AMPS

4.39

8.78

11.73

15.16

KW

1.01

2.02

2.57

3.49

AMPS

2.19

4.39

5.58

7.58

KW

1.01

2.02

2.57

3.48

AMPS

1.91

3.82

4.86

6.60

KW

1.10

2.20

2.80

3.80

230/3/60 460/3/60 575/3/60

Amount shown in chart is total kW and Amps.NOTE: Information required for complete product Model Key – Motor Type, Voltage Code, Heater Voltage Code.

Refer to Model Key on page 2.

Replacement Parts

DESCRIPTION

MOTOR 115-230/1/60

MOTOR 208-230/460/3/60

MOTOR 575/3/60

MOTOR MOUNT RING (1 Phase)

MOTOR MOUNT RING (3 Phase)

PART #

4410161

4410170

4410173

4914983

4910148

DESCRIPTION

FAN BLADE

FAN GUARD

LONG THROW ADAPTER

PART #

4780659

4914788

4916470

Krack_MS_Text_082012_2009 8/21/12 6:25 PM Page 7

MS Series Unit Coolers

Dimensional Data

8 MS SERIES UNIT COOLERSSpecifications subject to change without notice.

Note: Dimensions in inches.

Note: Allow 15” clearance between rear of coil and wall for maximum efficiency and minimum noise level.12” left side clearance allows for optimum access to electrical connections.

SIZE A B C D

1 FAN 45.00 45.00 57.00 15.322 FAN 45.00 90.00 102.00 15.323 FAN 39.00 117.00 129.00 15.324 FAN 39.00 156.00 168.00 15.32

UNIT DIMENSIONS

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MS Series Unit Coolers

MS SERIES UNIT COOLERS 9Specifications subject to change without notice.

Wiring Diagram

1 FAN

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MS Series Unit Coolers

Wiring Diagram

10 MS SERIES UNIT COOLERSSpecifications subject to change without notice.

2 FAN

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MS Series Unit Coolers

MS SERIES UNIT COOLERS 11Specifications subject to change without notice.

Wiring Diagram

3 FAN

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MS Series Unit Coolers

Wiring Diagram

12 MS SERIES UNIT COOLERSSpecifications subject to change without notice.

4 FAN

Krack_MS_Text_082012_2009 8/21/12 6:25 PM Page 12

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