KR Series COMPACT UNIT COOERS Technical Bulletin: KRUC_00_07 Products that provide lasting solutions.
Provides Excellent Design Innovations That Enhance Overall Refrigeration Performance The KR Compact Unit Cooler is specially designed with a low sihouette that fits flush to the ceiling utilizing less than inches of headroom. This design gives you more usable storage space for every walk-in application. The KR Series is constructed for high efficiency and ease of maintenance. Standard Features n Swept Wing Fan Blade Design providing minimal noise and improved customer satisfaction. n Non-metallic fan guard. n Front access to refrigeration components for serviceability. n Electrical panel located behind front access hinged aluminum cover. n Standard EC fan motors for //0 and 08-0//0. n Die-formed patterned aluminum cabinet and drain pan with easy-to-clean radius corners. n Pressurized, sealed coils with heavy-walled copper tube and rippled full collar aluminum fins. n Superheat gauge fitting. n Electric defrost models feature efficient coil face heaters, drain pan heaters and defrost controls. Available heater voltages / (H&P Defrost only), 0/, 0/, and 0/ (E Defrost only). n Factory wired fan and defrost controls with convenient terminal strips. n Plug in motor leads. Optional Features and Accessories n These coils can be circuited for fluid or CO application. n PSC motors for //0 and 08-0//0. n Shaded pole motors for 0//0. n Installed TX valve. n Installed liquid solenoid valve. n Wire fan guard. KR SERIES COMPACT UNIT COOERS
Ordering Information n Complete model number. n Refrigerant R0A, R07A, R07C, R07F, R07 and R8A/R9A. n Room temperature. n Saturated suction temperature. Specify When Ordering All Models n iquid refrigerant temperature. n Motor and heater voltage. n Optional features. n Optional accessories. Model Key KR E - 07 - E A K Heater Voltage Unit Type KR = Krack Compact Series A=0//0 B=//0 (For H&P Defrost) H= 0//0 (For E Defrost) K=0//0 Number of Fans Motor Voltage Fin Spacing FPI FPI A=08-0//0 B=//0 H= 0//0 Type of Defrost A = Air Defrost B = Brine E = Electric with Electric Pan G = Pipe Hot Gas with Hot Gas Drain Pan H = Pipe Hot Gas with Electric Drain Pan J = Brine with Electric Defrost (Coil & Pan) K = Pipe Kool Gas with Kool Gas Drain Pan P = Pipe Kool Gas with Electric Drain Pan Motor Type A=Shaded Pole Motors (0V only) B=PSC Motors (V & 0V) E = EC Motors (V & 0V) BTU/h in Hundreds (00) U C U KR SERIES COMPACT UNIT COOERS
Air Defrost ow Profile Electric Defrost ow Profile SHIPPING WGT. (BS) 0 0 00 00 00 00 0 0 0 80 0 0 00 0 80 MODE KRA-00 KRA-0 KRA-00 KRA-07 KRA-089 KRA-0 KRA- KRA- KRA- KRA-9 KRA-70 KRA- KRA- KRA-0 KRA-0 KRA-08 KRA-09 KRA-7 KRA- KRA-7 KRA-9 KRA- KRA- KRA-8 AIR FOW (CFM) 8 8 8,,,,,,,,,80,,070,070 8,70,70,,,00,0,7,0 9. 9. 9. 7. 7. 7. 7. 7.... 8. 0. 9. 9. 9. 7. 7... 8. 8. 0. 9. W H CAP. (BTUH) @ 0 F TD + SST,000,00,000 7,00 8,0 0,00,00,00,00,0 7,000,00,00,000,000,800 9,00,700,00 7,00 9,00,00 9,000,800 DIMENSIONS (IN) IQUID SUCTION....7..7 HG REFRIGERATION CONNECTIONS # OF HANGERS CHARGE DATA BS OF R0A CAPACITY (BTUH) @ 0 F TD SHIPPING WGT. (BS) 0 0 00 00 00 0 0 80 80 00 0 0 0 MODE KRE-07 KRE-0 KRE-0 KRE-0 KRE-0 KRE-07 KRE-07 KRE-07 KRE-0 KRE- KRE- KRE- KRE-8 KRE-0 KRE-80 KRE-8 KRE-9 KRE- KRE-0 KRE-0 KRE-70 AIR FOW (CFM) 87 8 8 8,70,70,,,,,,,00,80,80,7,,0,0,070,070 9. 9. 9. 9. 7. 7. 7. 7. 7.... 8. 8. 8. 0. 0. 9. 9. 9. 9. W H DIMENSIONS (IN) -0 SST,700,00,00,00,00 7,00,700 7,00 9,000,00,00,00,800,000 8,000 8,00 9,00,00,000,000 7,000 +0 SST,000,70,0,080 8,780 9,9 9,00 0,0,0,9 7,00 8,0 9,80,00,00,980, 8,70 9,700,00,0 IQUID SUCTION.... HG REFRIGERATION CONNECTIONS # OF HANGERS CHARGE DATA BS OF R0A
Hot Gas Defrost ow Profile MODE KR( )-07 KR( )-0 KR( )-0 KR( )-0 KR( )-0 KR( )-07 KR( )-07 KR( )-07 KR( )-0 KR( )- KR( )- KR( )- KR( )-8 KR( )-0 KR( )-80 KR( )-8 KR( )-9 KR( )- KR( )-0 KR( )-0 KR( )-70 CAPACITY (BTUH) @ 0 F TD -0 SST,700,00,00,00,00 7,00,700 7,00 9,000,00,00,00,800,000 8,000 8,00 9,00,00,000,000 7,000 +0 SST,000,70,0,080 8,780 9,9 9,00 0,0,0,9 7,00 8,0 9,80,00,00,980, 8,70 9,700,00,0 AIR FOW (CFM) 87 8 8 8,70,70,,,,,,,00,80,80,7,,0,0,070,070 REFRIGERATION CONNECTIONS IQUID SUCTION HG.... # OF HANGERS CHARGE DATA BS OF R-0A DIMENSIONS (IN) SHIPPING WGT. (BS) 0 0 00 00 00 0 0 80 80 00 0 0 0 NOTE: Available Types of Defrost: (K) KGG - Pipe Kool Gas with Kool Gas Pan; (H) HGE - Pipe Hot Gas with Electric Pan; (G) HGG - Pipe Hot Gas with Hot Gas Pan; (P) KGE - Pipe Kool Gas with Electric Pan 9. 9. 9. 9. 7. 7. 7. 7. 7.... 8. 8. 8. 0. 0. 9. 9. 9. 9. W H KR Motor Options MODE EC MOTORS STANDARD //0 08-0//0 PSC MOTORS OPTIONA //0 08-0//0 SHADED POE 0//0 FAN 0.8 0. 0. 0. 8 0. 00 FAN. 9 0.8. 8 0.. 00 FAN. 8..8 9 0.9 7.8 00 FAN. 8. 80... 00 FAN.0 0.0.0 0..0 00 FAN.8 7. 70. 8.8 8. 00 NOTE: Information required for complete product Model Key Motor Type, Voltage Code, Heater Voltage Code. Refer to Model Key on page. KR SERIES COMPACT UNIT COOERS
Electric Defrost Heater Data MODE FAN 07, 0, 0, 0 FAN 0, 07, 07, 07, 0 FAN,, FAN 8, 0, 80 FAN 8, 9 FAN, 0, 0, 70 0//0 0//0 0//0. 8.7.0 7..7. 000 000 000 000 000 000.9.8 8.7.. 7. 000 000 000 000 000 000... 8.8.0. 000 000 000 000 000 000 NOTE: Information required for complete product Model Key Motor Type, Voltage Code, Heater Voltage Code. Refer to Model Key on page. Hot Gas Defrost Drain Pan Heater Data MODE FAN 07, 0, 0, 0 FAN 0, 07, 07, 07, 0 FAN,, FAN 8, 0, 80 FAN 8, 9 FAN, 0, 0, 70 //0 0//0.. 7.0 8.7 9.. 00 00 800 000 00 00.....8. 00 00 800 000 00 00 NOTE: Information required for complete product Model Key Motor Type, Voltage Code, Heater Voltage Code. Refer to Model Key on page. KR SERIES COMPACT UNIT COOERS
Dimensional Data C.8 B.8 A.9.7 Electrical Knockouts Back and Top of Unit Slotted Hanger Holes ( x 0.7).9. Air Flow Distributor iquid Connection Suction Connection Removable Front Access Panel Electrical Connection End 0.70 F.P.T. Drain Connection Removable Front Access Panel Refrigerant Connection End D Note: All dimensions in inches. Allow clearance between rear of coil and wall for maximum efficiency and minimum noise level. left side clearance allows for optimum access to electrical connections. UNIT DIMENSIONS SIZE A B C D FAN - 8.0 9. FAN -.0 7. FAN -.0. FAN.00 7.0 8. FAN.00.0 0. FAN.00 08.0 9. Typical System Wiring N H F X B S P 7 8 COI HEATERS COI HEATERS COI HEATERS KR SERIES COMPACT UNIT COOERS
Use your QR reader to reference current document version on www.krack.com. Krack, a Hussmann Corporation brand 8 Remington Boulevard Bolingbrook, Illinois 00 Ph: 0.9.700 www.krack.com Printed in U.S.A. 07 Krack, a Hussmann Corporation brand KRUC_00_07