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Datasheet for LG models including: KSSLA421A, KUSXA421A, KNSLB421A, KSSLA421A Series Multi Position Air Handling Unit, KSSLA421A Series, Multi Position Air Handling Unit, Position Air Handling Unit, Air Handling Unit, Handling Unit
Power Wiring and Communication Wiring from Outdoor Unit to Indoor Unit: (No. x AWG) 3 x 14 / 2 x 18. 8. See Engineering Manual for sensible and latent ...
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DocumentDocumentJob Name/Location: Date: PO No.: Architect: Engr: Rep: (Company) For: File Resubmit Approval Other GC: Mech: (Project Manager) Tag No.: KSSLA421A R32 Single Zone LGREDTMM ult i-Posit ion Air Handling Unit Out door Unit (ODU) - KUSXA421A, Indoor Unit (IDU) - KNSLB421A Performance: Cooling: Cooling Capacity (Min~Rated~Max, Btu/h) SEER2 EER2 16,800 ~ 42,000 ~ 50,000 19.00 12.50 SEER - Seasonal Energy Efficiency Ratio EER - Energy Efficiency Ratio Operating Range: Outdoor Unit: Cooling (°F DB) Heating (°F WB) Indoor Unit: 5 ~ 118 -13~ +64 Heating: Heating Capacity (Min~Rated~Max, Btu/h) HSPF2 Max. Heating @ Indoor 70°F DB (Btu/h) Outdoor 17°F WB 18,000 ~ 46,000 ~ 60,000 9.80 52,000 Cooling (°F WB) Heating (°F DB) System Data: Refrigerant Type Refrigerant Control 57 ~ 77 59 ~ 81 R32 EEV Outdoor 5°F WB Outdoor -4°F WB Outdoor -13°F WB HSPF - Heating Seasonal Performance Factor Cooling Nominal Test Conditions: Indoor: 80°F DB / 67°F WB Outdoor: 95°F DB / 75°F WB Heating Nominal Test Conditions: Indoor: 70°F DB / 60°F WB Outdoor: 47°F DB / 43°F WB 46,000 36,500 27,000 Refrigerant Charge (oz) ODU Sound Pressure (Cooling / Heating) (±1 dB[A]) IDU Sound Pressure (H/M/L) (±1 dB[A]) ODU Net / Shipping Weight (lbs.) 120 54 / 56 41 / 38 / 36 213.4 / 232.4 Electrical: Power Supply (V¹/Hz/Ø) 208-230/60/1 IDU Net / Shipping Weight (lbs.) Heat Exchanger Coating 146 / 160 GoldFinTM MOP (A) 40 MCA (A) 32 Cooling / Heating Rated Amps (A) Compressor (A) Fan Motor (IDU + ODU) (A) Cooling Power Input (Min~Rated~Max, kW) Heating Power Input (Min~Rated~Max, kW) 14.8 / 16.0 22 3.4 + (1.6 x 2) 1.19 ~ 3.36 ~ 5.32 1.34 ~ 3.64 ~ 5.80 Locked Rotor Amps (A) 22 MOP - Maximum Overcurrent Protection MCA - Minimum Circuit Ampacity Piping: Fan: ODU Type IDU Type Fan Speeds (Fan/Cool/Heat) Fan Quantity (ODU + IDU) Motor/Drive Maximum ODU Air Volume (CFM) IDU Air Flow (CFM Max. H/M/L) Default ESP (in wg) Minimum ESP/Fan Setting Value Propeller Sirocco 3 / 3 / 3 2 + 1 Brushless Digitally Controlled/Direct 1,942 x 2 1,225 / 1,100 / 1,000 0.4 0.1 / 56 Installed Liquid Pipe (in., O.D.) Installed Vapor Pipe (in., O.D.) IDU Liquid Connection (in., O.D.) IDU Vapor Connection (in., O.D.) Additional Refrigerant (oz./ft.) Min. / Max. Pipe Length (ft.)² Piping Length (no add'l refrig., ft.) Max. Elevation (ft.) 3/ 8 5/ 8 3/ 8 5/ 8 0.43 16.4 / 246 24.6 98.4 Controls Features: · Inverter (Variable Speed · R32 Leak Detection Compressor) Sensor · Hot Start · Child Lock · Self Diagnosis · Auto Operation · Soft Dry Operation · Auto Restart · Auto Changeover · Sleep Mode · Timer (on/off/weekly) · Two Thermistor Control · Optional Wi-Fi Control · ESP Control Standard Features: · Access Panel for Field Supplied Air Filter - 20 x 20 x 1 · ODU Base Pan Heater Optional Accessories: Maximum ESP/Fan Setting Value Dehumidification (pts./hr.) 1.0 / 116 7.9 Notes: 1. Acceptable operating voltage: 187V-253V. 2. Piping lengths are equivalent. 3. Refer to the Engineering Manual for available auxiliary heater capacities. 4. Requires an LG wall controller because Multi-Position AHU do not have an infrared receiver. 5. Sound Pressure levels are tested in an anechoic chamber under ISO Standard 3745. 6. Maximum static pressure may result in reduced airflow (CFM). 7. All power supply wiring to the outdoor unit is field supplied, solid or stranded. The power wiring and the communication wiring from the outdoor unit to the indoor unit is field supplied and must be stranded, shielded or unshielded (if shielded, it must be grounded to the chassis of the outdoor unit only). All wiring must comply with applicable local and national codes. a. Power Supply Wiring to ODU: (No. x AWG): 3 x 12 for 12k, 18k, and 24k; 3 x 10 for 30k, 36k, 42k, and 48k. b. Power Wiring and Communication Wiring from Outdoor Unit to Indoor Unit: (No. x AWG) 3 x 14 / 2 x 18. 8. See Engineering Manual for sensible and latent capacities. 9. Power wiring cable size must comply with the applicable local and national code. 10. The indoor unit comes with a dry helium charge. 11. This data is rated 0 ft. above sea level, with 24.6 ft. of refrigerant line and a 0 ft. level difference between outdoor and indoor units. 12. Must follow installation instructions in the applicable LG installation manual. 13. If the optional low ambient wind baffle is used, one wind baffle is required for each ODU fan. BACnetTM is a registered trademark of ASHRAE. LonWorks® is a trademark of Echelon Corporation. Auxillary Heater Kit - PRARH1 Wi-Fi Module - PWFMDD200 Single Port Shutoff Valve - PRHPZ010A Downflow Conversion Kit - PNDFA0 Electric Heat Kits - ANEHxx3Cx³ Controller Options: Wireless Remote Controller Dry Contacts MultiSITETM CRC Controllers AC Smart 5 Central Controller Simple Remote Controller LonWorks® Gateway Proper sizing and installation of equipment is critical to achieve optimal performance. Split system air condi- Standard III Remote Controllers MultiSITE Comm. Mgr. Remote Temperature Button Sensor ACP 5 BACnetTM Gateway For a complete list of available accessories, contact your LG representative. tioners and heat pumps (excluding ductless systems) must be matched with appropriate coil components to meet ENERGY STAR® criteria. Ask your contractor for details or visit www.energystar.gov. (ENERGY STAR and the ENERGY STAR mark are registered trademarks owned by the U.S. Environmental Protection Agency.) For continual product development, LG reserves the right to change specifications without notice. SB_SZ_M ult i_Posit ion_AHU_LGRED_R32_KSSLA421A_2025_01_23_180157 © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG Life's Good" is a registered trademark of LG Corp. /www.lghvac.com Page 1 of 4 Job Name/Location: KSSLA421A R32 Single Zone LGREDTMM ult i-Posit ion Air Handling Unit Out door Unit (ODU) - KUSXA421A, Indoor Unit (IDU) - KNSLB421A Factory Configurations Vertical Upflow Air Flow Liquid Pipe Vapor Pipe Upflow Drain Connection Air Filter Cover Tag No.: Date: PO No.: Field Configurations Air Filter Cover Vertical Downflow Liquid Pipe Vapor Pipe Downflow Drain Connection Air Flow Requires vertical downflow kit Horizontal Left Horizontal Right Air Flow Air Filter Cover Air Filter Cover Air Flow Liquid Vapor Drain Connection Pipe Pipe for Horiz Left Drain Connection Vapor Liquid for Horiz Right Pipe Pipe For continual product development, LG reserves the right to change specifications without notice. SB_SZ_M ult i_Posit ion_AHU_LGRED_R32_KSSLA421A_2025_01_23_180157 © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG Life's Good" is a registered trademark of LG Corp. /www.lghvac.com Page 2 of 4 Job Name/Location: KSSLA421A R32 Single Zone LGREDTMM ult i-Posit ion Air Handling Unit Out door Unit (ODU) - KUSXA421A, Indoor Unit (IDU) - KNSLB421A Tag No.: Date: PO No.: For continual product development, LG reserves the right to change specifications without notice. SB_SZ_M ult i_Posit ion_AHU_LGRED_R32_KSSLA421A_2025_01_23_180157 © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG Life's Good" is a registered trademark of LG Corp. /www.lghvac.com Page 3 of 4 Job Name/Location: KSSLA421A R32 Single Zone LGREDTMM ult i-Posit ion Air Handling Unit Out door Unit (ODU) - KUSXA421A, Indoor Unit (IDU) - KNSLB421A Tag No.: Date: PO No.: For continual product development, LG reserves the right to change specifications without notice. SB_SZ_M ult i_Posit ion_AHU_LGRED_R32_KSSLA421A_2025_01_23_180157 © LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG Life's Good" is a registered trademark of LG Corp. /www.lghvac.com Page 4 of 4