MS Series UNIT COOLERS. Technical Bulletin: MSUC_005_ Products that provide lasting solutions.

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1 MS Series UNIT COOLERS Technical Bulletin: MSUC_005_032 Products that provide lasting solutions.

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3 Medium Profile Units for Medium Size Walk-In Coolers and Freezers Access Panel Hinged panel cover provides easy access to electrical connections. Hinged Drain Pan Hinged drain pan easily drops down for quick service. The MS Series Unit Coolers have a medium profile to accommodate increased air flow for warehouse refrigeration applications. A galvanized steel cabinet provides long lasting durability and strength. The MS Series is built for performance with increased BTUH capacities and heavyduty construction for your refrigeration needs. Standard Features n Medium profile, galvanized steel cabinet. n 20 1 to fans. n 15,000 to 1,10 TD. n,, or fins per inch air defrost. n, 5, or fins per inch electric or hot gas defrost. n h.p., 110 RPM, ball-bearing motors totally enclosed, internal overload protection with automatic reset, permanently lubricated. n 230V-1 or -3, 0V-3, 55V-3, 30V-3 electric defrost models. n 115V, 230V-1 or -3, 0V-3, 55V-3, 30V-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 Mounted thermostatic expansion valve. n Liquid line solenoid valve.* n Suction/liquid heat exchanger.* n Painted housing. n Stainless steel housing. n Stainless steel drain pan. n Glycol circuiting. n Heat reclaim circuiting. n Copper fins. n Electrofin coated coils. n Export crating. n Mounted NEMA x non-fused disconnect. n Adj. defrost termination control. n Face split coil. * Shipped Loose 1

4 Ordering Information Specify When Ordering All Models n Complete model number. n Refrigerant R0A, R0A, R0C, R0F, R50, and RA / R9A. n Room temperature. n Saturated suction temperature. n Liquid refrigerant temperature. n Motor and heater voltage. n Optional features. n Optional accessories. Model Key MS 2 E C K K Heater Voltage Unit Type MS = Super Cooler Number of Fans A=20-230/1/0 (Coil Gas Defrost, Pan Heater Only) H= 0/1/0 (Pan Heater Only) K=20-230/3/0 M= 0/3/0 P=55/3/0 U=30/3/50 (Not UL) Fin Spacing FPI FPI 5 FPI FPI Type of Defrost Motor Voltage A=20-230/1/0 B=115/1/0 K=20-230/3/0 M= 0/3/0 P=55/3/0 U= 30/3/50 (Not UL) A = Air Defrost B = Brine E = Electric with Electric Pan G = 3 Pipe Hot Gas with Hot Gas Drain Pan H = 3 Pipe Hot Gas with Electric Drain Pan K = 2 Pipe Kool Gas with Kool Gas Drain Pan P = 2 Pipe Kool Gas with Electric Drain Pan R = Heat Reclaim Motor Type B=PSC Motors (115/1, 230/1) C=3-Phase Motors Inverter Duty Suitable Motor (230/3, 0/3) (Standard) BTU/h in Hundreds (00) U L C U L 2

5 Air Defrost Medium Profile 3 MEDIUM TEMPERATURE MODEL MS1A-150 MS1A-190 MS1A-225 MS1A-29 MS1A-1 MS1A-229 MS1A-20 MS1A- MS1A-199 MS1A-2 MS1A-25 MS1A-295 MS2A-300 MS2A- MS2A-50 MS2A-9 MS2A-3 MS2A-59 MS2A-520 MS2A-52 MS2A-39 MS2A-92 MS2A-550 MS2A-591 MS3A-52 MS3A-23 MS3A-0 MS3A-2 MS3A-12 MS3A-0 MS3A-3 MS3A-55 MS3A-9 MSA-99 MSA-30 MSA-9 MSA-35 MSA-99 MSA-5 MSA-5 MSA-0 MSA-12 SHIPPING WGT. (LBS) CAP. F TD +20 SST 15,020 19,030 22,0 2,9 1,30 22,90 2,0 2,0 19,0 2,590 2,500 29,50 30,00 3,050,950 9,20 3, 5,0 52,030 5,190 39,0 9,10 55,000 59,00 52,00 2,250 0,20 2, 1,10 0,20,30 5,50,0 9,0 3,000 9,30 3,0 9,900,90,50 0,20 1,10 AIR FLOW (CFM),200,120,000 3,920,120,00 3,90 3,50,00,000 3,900 3,00,00,20,000,0,20,00,0,00,10,000,00,00 12,5 11,505 11,325 11,95 11,00,995 11,00,995,905 1,10 15,30 15,0 15,0 1,20 1,0 15,00 1,0 1,50 L H W DIMENSIONS (IN) NO. OF HANGERS REFRIG CHARGE LIQUID 5/ 5/ 5/ 5/ 5/ 5/ 5/ 5/ 5/ SUCTION 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-5/ 1-5/ 1-5/ 1-5/ 1-5/ 1-5/ 1-5/ 1-5/ 1-5/ 2-1/ 2-1/ 2-1/ 2-1/ 2-1/ 2-1/ 2-1/ 2-1/ 2-1/ REFRIGERATION CONNECTIONS NOTE: Derate 12% for 50 Hertz (0. multiplier) or increase TD to compensate for lower fan RPM.

6 Electric Defrost Medium Profile MEDIUM / LOW TEMPERATURE AIR REFRIGERATION CONNECTIONS CAP. F TD FLOW NO. OF REFRIG DIMENSIONS (IN) MODEL MS1E-12 MS1E-2 MS15E-1 MS15E-223 MS1E-195 MS1E-239 MS2E-323 MS2E-2 MS25E-35 MS25E- MS2E-390 MS2E- MS3E-5 MS3E-02 MS35E-502 MS35E-3 MS3E-532 MS3E-5 MSE-59 MSE-03 MS5E-9 MS5E-5 MSE- MSE SST 1,10,10 1,90 22,20 19,500 23,90 32,30 2,350 35,50,50 39,000,0,50 0,200 50,10,330 53,220,530 59,390 0,20,900 5,0 0,90 91, SST 19,030 2,9 20,930 2,190 22,90 2,0 3,050 9,20 1,0 52,290 5,0 5,190 52,00 0,20 59,030 5,0 2, 0,20 9,0 9,30, 0,9 3,0,90 (CFM),120 3,920,00 3,90,00 3,50,20,0,120,0,00,00 12,5 11,325 12,015 11,205 11,95,995 1,10 15,0 1,020 1,90 15,0 1,0 LIQUID 5/ 5/ 5/ SUCTION 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-5/ 1-5/ 1-5/ 1-5/ 1-5/ 1-5/ 2-1/ 2-1/ 2-1/ 2-1/ 2-1/ 2-1/ HANGERS CHARGE L W H NOTE: Ratings apply for D or E electric defrost. Derate 12% for 50 Hertz (0. multiplier) or increase TD to compensate for lower fan RPM. SHIPPING WGT. (LBS)

7 Hot Gas Defrost Medium Profile MEDIUM / LOW TEMPERATURE MODEL CAP. F TD -20 SST +20 SST AIR FLOW (CFM) LIQUID 5/ 5/ 5/ REFRIGERATION CONNECTIONS SHIPPING DIMENSIONS (IN) NO. OF REFRIG WGT. SUCTION 1-2/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-5/ 1-5/ 1-5/ 1-5/ 1-5/ 1-5/ 2-1/ 2-1/ 2-1/ 2-1/ 2-1/ 2-1/ HG HANGERS CHARGE L W H (LBS) NOTE: Derate 12% for 50 Hertz (0. multiplier) or increase TD to compensate for lower fan RPM. MS1( )-12 MS1( )-2 MS15( )-1 MS15( )-223 MS1( )-195 MS1( )-239 MS2( )-323 MS2( )-2 MS25( )-35 MS25( )- MS2( )-390 MS2( )- MS3( )-5 MS3( )-02 MS35( )-502 MS35( )-3 MS3( )-532 MS3( )-5 MS( )-59 MS( )-03 MS5( )-9 MS5( )-5 MS( )- MS( )-91 1,10,10 1,90 22,20 19,500 23,90 32,30 2,350 35,50,50 39,000,0,50 0,200 50,10,330 53,220,530 59,390 0,20,900 5,0 0,90 91,30 19,030 2,9 20,930 2,190 22,90 2,0 3,050 9,20 1,0 52,290 5,0 5,190 52,00 0,20 59,030 5,0 2, 0,20 9,0 9,30, 0,9 3,0,90,120 3,920,00 3,90,00 3,50,20,0,120,0,00,00 12,5 11,325 12,015 11,205 11,95,995 1,10 15,0 1,020 1,90 15,0 1,0 5

8 Motor Electrical Data MODEL 1 FAN 2 FAN 3 FAN FAN PSC MOTORS 3 PHASE MOTORS STANDARD 115/1/ /1/ /3/0 0/3/0 55/3/0 30/3/50 AMPS WATTS AMPS WATTS AMPS WATTS AMPS WATTS AMPS WATTS AMPS WATTS NOTE: Information required for complete product Model Key Motor Type, Voltage Code, Heater Voltage Code. Refer to Model Key on page 2.

9 Electric Defrost with Electric Drain Pan (E) Data MODEL 1 FAN 12,1, FAN 2, 223, FAN 323, 35, FAN 2,, 3 FAN 5, 502, FAN 02, 3, 5 FAN 59, 9, FAN 03, 5, /3/0 0/3/0 55/3/0 AMPS KW AMPS KW AMPS KW (2) 2. 3* (2).* /3/50 AMPS KW *Two circuits 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. Hot Gas Coil with Electric Defrost Drain Pan (H,P) Data MODEL 1 FAN 12,1, 195, 2, 223, FAN 323, 35, 390, 2,, 3 FAN 5, 502, 532, 02, 3, 5 FAN 59, 9,, 03, 5, /1/0 0/1/0 55/1/0 AMPS KW AMPS KW AMPS KW /1/50 AMPS KW 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.

10 Dimensional Data 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. UNIT DIMENSIONS SIZE A B C D 1 FAN FAN FAN FAN Note: Dimensions in inches.

11 Wiring Diagram 1 FAN 9

12 Wiring Diagram 2 FAN

13 Wiring Diagram 3 FAN 11

14 Wiring Diagram FAN 12

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16 Use your QR reader to reference current document version on Krack, a Hussmann Corporation brand 90 Remington Boulevard Bolingbrook, Illinois 00 Ph: Printed in U.S.A. 201 Krack, a Hussmann Corporation brand MSUC_005_032