Liebert DSE. System Design Manual Downflow, 80-165kW, 23-43 Tons; Upflow, 80-85kW, 23-24 Tons; 50/60Hz

Liebert DSE System Design Manual Downflow, 80-65kW, 23-43 Tons; Upflow, 80-85kW, 23-24 Tons; 50/60Hz

TABLE OF CONTENTS.0 LIEBERT DSE COMPONENTS AND NOMENCLATURE................................ Model Number Nomenclature - 25 Digit Configuration Number...................... 3 2.0 AIR-COOLED PERFORMANCE DATA...........................................4 3.0 DIMENSIONS AND EQUIPMENT LAYOUT.......................................2 3. Floor Stand Dimensions...................................................... 5 4.0 PIPING SCHEMATICS.....................................................7 5.0 CONDENSERS DIMENSIONS..............................................23 6.0 PLENUM DIMENSIONS....................................................29 6. Outdoor Equipment Dimensions............................................... 30 7.0 DISASSEMBLY.........................................................33 8.0 ELECTRICAL CONNECTIONS...............................................36 8. Standard Electrical Connections Liebert MC................................... 37 8.2 Notes on Electrical Connections Liebert MC.................................... 38 8.2. Wye- vs. Delta-Connected Power Supply......................................... 38 8.3 Standard Electrical Field Connections, DA080 and DA085 Upflow and Downflow....... 42 8.4 CANbus Electrical Connections, DA080 and DA085 Upflow and Downflow............ 42 8.5 Optional Electrical Field Connections, DA080 and DA085 Upflow and Downflow....... 43 8.6 Optional Low-Voltage Terminal Package Field Connections, DA080 and DA085 Upflow and Downflow.............................................................. 43 8.7 Liebert DSE Electrical Field Connection Descriptions, DA25, DA50 and DA65 Downflow Models Standard Electrical Connections................................ 46 8.8 Optional Electrical Connections, DA25, DA50 and DA65 Downflow Models......... 46 8.9 Optional Low-Voltage Terminal Package Connections, DA25, DA50 and DA65 Downflow Models........................................................... 47 9.0 GUIDE SPECIFICATIONS..................................................49.0 GENERAL.......................................................49 2.0 PRODUCT.......................................................49 3.0 EXECUTION......................................................53 i

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.0 LIEBERT DSE COMPONENTS AND NOMENCLATURE Liebert DSE Components and Nomenclature Figure Downflow model component locations 0 9 2 3 4 4 8 7 6 5. Liebert icom 2. THD Assembly (575V units only) 3. Evaporator Coil 4. Smoke Sensor (optional) 5. Fan Modules (internal position) 6. Infrared Humidifier (optional) 7. Condensate Pump (optional) 8. Compressor Section 9. Disconnect (optional) 0. Filter Plenum. Electric Box DPN003452 Rev. 0 Liebert DSE

Liebert DSE Components and Nomenclature Figure 2 Upflow model component locations 0 2 9 8 Typical. EC Fans 2. Plenum (Front Discharge Shown) 3. Liebert icom 4. Evaporator Coil 5. Smoke Sensor (optional) 6. Infrared Humidifier (optional) 7. Condensate Pump (optional) 8. Filters (not shown for clarity) 9. Electric Box 0. Disconnect (optional). Compressor Section 8 7 6 5 DPN00345 Rev. 0 3 4 Liebert DSE 2

. Model Number Nomenclature - 25 Digit Configuration Number Liebert DSE Components and Nomenclature Model #** Part /2 Model Details Model # Part 2 * 2 3 4 5 6 7 8 9 0 2 3 4 5 6 7 8 9 20 2 22 23 24 25 D A 2 5 D A A T H A 0 8 D 0 0 S P 2 3 S Digits -2 - Product Family Digit 7 - High-Voltage Options DA = Liebert DSE 0 = No disconnect Digits 3-5 - Cooling Capacity, kw D = Non-Locking Disconnect Nominal Sensible Capacity, kw L = Locking Disconnect Digit 6 - Air Discharge 3 = No Disconnect, With Condensate Pump D = Downflow 4 = Non-Locking Disconnect, With Condensate Pump U = Upflow 5 = Locking Disconnect, With Condensate Pump Digit 7 - System Type Digit 8 - Option Packages A = Air-Cooled 0 = None P = Air-Cooled, Econ-O-Phase Ready L = Option Package # - Low Voltage Terminal Package Digit 8 - Airflow (Fan Type) H = Reheat and Humidifier Lockout = EC Plug Fans R = Remote Humidity Contact Digit 9 - Power Supply C = Option Package #, Plus Reheat/Humidifier Lockout A = 460V / 3ph / 60Hz D = Option Package #, Plus Remote Humidifier Contact B = 575V / 3ph / 60Hz E = Option Package #, Plus Reheat/Humidifier Lockout, plus remote C = 208V / 3ph / 60Hz contact D = 230 / 3ph / 60Hz F = Remote Humidity Contact Plus Reheat/Humidifier Lockout 2 = 380-45 / 3ph / 60Hz Digit 9 - Monitoring Cards M = 400 / 3ph / 50Hz Digit 0 - Cooling System 0 = No Cards D = Digital Scroll, R-40A U = One Liebert IS-Unity-DP Card T = Tandem with Digital, R-40A C = One Liebert SiteLink-E Card Digit - Humidification 6 = One Liebert IS-Unity-DP Card and One Liebert SiteLink-E Card 0 = None 7 = Two Liebert IS-Unity-DP Cards H = Infrared Humidifier Digit 20 - Sensors Digit 2 - Display 0 = None H = Liebert icom Control S = Smoke Sensor Digit 3 - Reheat H = High-Temperature Sensor 0 = None F = Smoke and High-Temperature Sensors = Electric Reheat, 30kW C = Compressor Overload Sensors Digit 4 - Air Filter A = Compressor, High-Temperature Sensor 8 = MERV 8, 4" D = Compressor, Smoke Sensor 9 = MERV, 4" K = Compressor, High-Temperature, Smoke Sensors A = MERV 3, 4" Digit 2 - Packaging 6 = MERV, 2" plus MERV 8 prefilter, 2" P = Domestic C = MERV 3, 2" plus MERV 8 prefilter, 2" Digit 22-24 Configuration Code Digit 5 - Coil Options = Non-Coated Coil, Indoor Unit Digit 25 - Configuration Code 2 = Coated Coil, Indoor Unit A = Digit 6 - Enclosure Options S = SFA = Color standard 2 = Color Optional 6 = Color Standard W/Double-Skin Panels 9 = Color Optional W/Double-Skin Panels 3 = Color Standard & IBC/OSHPD Bracing 4 = Color Optional & IBC/OSHPD Bracing 8 = Color Standard, IBC/OSHPD, W/Double-Skin Panels * The 4-digit model number consists of the first 0 digits and last four A = Color Optional, IBC/OSHPD, W/Double-Skin Panels digits of the Configuration Number. 3 Liebert DSE

Air-Cooled Performance Data 2.0 AIR-COOLED PERFORMANCE DATA Table Capacity data with and EC fans, 60Hz Model Size 80 85 25 50 65 Net Capacity Data kw (kbtuh) 95 F DB, 67.7 F WB, 52.3 F DP (35 C DB, 9.8. C WB) 24% RH Total, kw (BTUH) 88 (300) 00 (34) 46 (499) 70 (58) 8 (53) Sensible, kw (BTUH) 84 (287) 94 (32) 46 (499) 70 (58) 8 (53) Net Full-Load SCOP (kw/kw) @ 95 Outdoor Ambient (Compressor Mode) 3.2 3. 3.8 3.2 3.2 Net Full-Load SCOP (kw/kw) @ 35 Outdoor Ambient (Pump Mode) 0.5 0. 7.5 3.0 3.0 4 90 F DB, 66. F WB, 52.3 F DP (32.2 C DB, 8.9 C WB) 28% RH Total, kw (BTUH) 86 (294) 98 (334) 38 (47) 62 (552) 72 (50) Sensible, kw (BTUH) 80 (273) 88 (300) 38 (47) 62 (552) 72 (50) Net Full-Load SCOP (kw/kw) @ 95 Outdoor Ambient (Compressor Mode) 3. 3.0 3.6 3. 3.0 Net Full-Load SCOP (kw/kw) @ 35 Outdoor Ambient (Pump Mode) 9.8 9.4 4. 2.5 2.5 4 85 F DB, 64.5 F WB, 52.3 FDP (29.4 C DB, 8. C WB) 32% RH Total, kw (BTUH) 85 (290) 92 (34) 30 (444) 53 (522) 63 (48) Sensible, kw (BTUH) 77 (263) 83 (283) 30 (444) 53 (522) 62 (48) Net Full-Load SCOP (kw/kw) @ 95 Outdoor Ambient (Compressor Mode) 3.0 2.7 3.4 2.9 2.9 Net Full-Load SCOP (kw/kw) @ 35 Outdoor Ambient (Pump Mode) 9. 8.7 2.2 2.0 2.0 4 80 F DB, 62.8 F WB, 52.3 F DP (26.7 C DB, 7. C WB) 38% RH Total, kw (BTUH) 83 (283) 89 (304) 23 (420) 45 (494) 54 (45) Sensible, kw (BTUH) 72 (246) 78 (266) 23 (420) 45 (494) 54 (45) Net Full-Load SCOP (kw/kw) @ 95 F Outdoor Ambient (Compressor Mode) 2.8 2.6 3.3 2.7 2.7 Net Full-Load SCOP (kw/kw) @ 35 F Outdoor Ambient (Pump Mode) 8.2 7.9.5.. 4 75 F DB, 6. F WB, 52.3 F DP (23.9 C DB, 6.2 C WB) 45% RH Total, kw (BTUH) 75 (256) 86 (294) 6 (396) 34 (457) 47 (43) Sensible, kw (BTUH) 67 (229) 73 (249) 2 (382) 34 (457) 47 (43) Net Full-Load SCOP (kw/kw) @ 95 F Outdoor Ambient (Compressor Mode) 2.6 2.4 3.0 2.4 2.5 Net Full-Load SCOP (kw/kw) @ 35 F Outdoor Ambient (Pump Mode) 7.5 7.2 0.7 0.2 0.2 4 FAN SECTION - Downflow models Standard Air Volume - CFM (CMH) 0.2" external static 9,600 (6,30) 0,400 (7,670) 8,000 (30,582) 8,000 3 (30,582) 20,000 3 (33980) Operating Fan kw, Total for All Fans 4.6 5.7 5.9 5.9 8.0 Quantity of Fans 2 2 3 3 3. Capacity data is rated and factory certified per ASHRAE 27-2007 with a 5% tolerance 2. Some options or combinations of options may result in reduced air flow; consult factory for recommendations. 3. Option for 24,000 CFM fans on DA50 and DA65 is available for DA50 and DA65. consult factory for more details. 4. DA65 will achieve full capacity at lower ambient temperatures than DA25 or DA50 units. Liebert DSE 4

Table 2 Capacity data with and EC fans, 50Hz Air-Cooled Performance Data Model Size 80 85 25 50 Net Capacity Data, kw (kbtuh) 95 F DB, 67.7 F WB, 52.3 F DP (35 C DB, 9.8. C WB) 24% RH Total kw (BTUH) 87 (297) 92 (34) 54 (526) 7 (584) Sensible kw (BTUH) 83 (283) 86 (294) 54 (526) 7 (584) Net Full-load SCOP (kw/kw) @ 95 Outdoor Ambient (Compressor Mode) 3.4 3.2 3.3 3.3 Net Full-load SCOP (kw/kw) @ 35 Outdoor Ambient (Pump Mode) 0.5 0. 7.5 3.0 90 F DB, 66. F WB, 52.3 F DP (32.2 C DB, 8.9 C WB) 28% RH Total kw (BTUH) 84 (287) 90 (307) 45 (495) 6 (549) Sensible kw (BTUH) 78 (266) 8 (276) 45 (495) 6 (549) Net Full-load SCOP (kw/kw) @ 95 Outdoor Ambient (Compressor Mode) 3.2 3.0 3.2 3.2 Net Full-load SCOP (kw/kw) @ 35 Outdoor Ambient (Pump Mode) 9.8 9.4 4. 2.5 85 F DB, 64.5 F WB, 52.3 FDP (29.4 C DB, 8. C WB) 32% RH Total kw (BTUH) 8 (276) 85 (290) 37 (468) 52 (59) Sensible kw (BTUH) 73 (249) 76 (259) 37 (468) 52 (59) Net Full-load SCOP (kw/kw) @ 95 Outdoor Ambient (Compressor Mode) 3.0 2.9 3.0 3.0 Net Full-load SCOP (kw/kw) @ 35 Outdoor Ambient (Pump Mode) 9. 8.7 2.2 2.0 80 F DB, 62.8 F WB, 52.3 F DP (26.7 C DB, 7. C WB) 38% RH Total kw (BTUH) 78 (266) 82 (280) 29 (440) 42 (485) Sensible kw (BTUH) 69 (235) 72 (246) 29 (440) 42 (485) Net Full-load SCOP (kw/kw) @ 95 Outdoor Ambient (Compressor Mode) 2.9 2.7 2.9 2.8 Net Full-load SCOP (kw/kw) @ 35 Outdoor Ambient (Pump Mode) 8.2 7.9.5. 75 F DB, 6. F WB, 52.3 F DP (23.9 C DB, 6.2 C WB) 45% RH Total kw (BTUH) 72 (246) 78 (266) 25 (427) 35 (46) Sensible kw (BTUH) 64 (28) 67 (229) 2 (43) 30 (444) Net Full-load SCOP (kw/kw) @ 95 Outdoor Ambient (Compressor Mode) 2.7 2.6 2.7 2.6 Net Full-load SCOP (kw/kw) @ 35 Outdoor Ambient (Pump Mode) 7.5 7.2 0.7 0.2 FAN SECTION - Downflow models - Fixed Pitch, Two Belts Standard Air Volume - CFM (CMH) 0.2" external static 9,600 (6,30) 0,400 (7,670) 8,000 (30,582) Operating Fan kw, total for all fans 4.4 5.5 7.3 7 Number of Fans 2 2 3 3. Capacity data is rated and factory certified per ASHRAE 27-2007 with a 5% tolerance 2. Some options or combinations of options may result in reduced air flow; consult factory for recommendations. 3. Option for 24,000 CFM fans on DA50 and DA65 is available for DA50 and DA65. consult factory for more details. 8,000 3 (30,582) 5 Liebert DSE

Air-Cooled Performance Data Table 3 Physical data Air-cooled units, 60Hz models Model Size 80 85 25 50 65 EVAPORATOR COIL- A-Frame - Copper Tube/Aluminum Fin Face Area, sq. ft. (sq. m) 24.65 (2.3) 24.65 (2.3) 56.2 (5.2) 56.2 (5.2) 56.2 (5.2) Rows of Coil 6 6 6 6 6 Face Velocity, FPM (m/s), Std. Air Volume 389.5 (2.0) 42.9 (2.2) 320.3 (.6) 320.3 (.6) 354 (.8) REHEAT SECTION Electric - Three (3) Stage, Stainless Steel Fin Tubular, capacity does not include fan motor heat Capacity,- kw (KBTUH) - Std. Selection 5 (5.20) 5 (5.20) 30 (02.4) 30.0 (02.4) 30.0 (02.4) Capacity, kw (KBTUH) - Opt. Selection 0 (34.3) 0 (34.3) 0.0 (34.) 0.0 (34.) 0.0 (34.) HUMIDIFIER SECTION Infrared Humidifier Capacity, lb./hr. (kg/h) 22 (0) 22 (0) 22 (0) 22 (0) 22 (0.0) FILTER SECTION - Disposable Type - Nominal Sizes and Quantities Nominal Size, inches 25 x 20 25 x 20 2.5 x 24 2.5 x 24 2.5 x 24 Quantity 4 4 0 0 0 Line Sizes* Liquid Line, O.D. Copper (2/unit), up to 300 eq. ft 7/8" 7/8" 7/8" -/8" -/8" Hot Gas Line, O.D. Copper (2/unit), up to 300 eq. ft. -/8" -/8" -3/8" -3/8" -3/8" Infrared Humidifier,O.D. Copper /4" /4" /4" /4" /4" Condensate Drain, FPT 3/4" 3/4" -/8" -/8" -/8" Condensate Drain w/opt Condensate Pump, OD /2" /2" /2" /2" /2" * For installations using pre-fabricated heat rejection skids, included piping must be factored into total equivalent length calculation. Consult factory for details. Table 4 Physical data Air-cooled units, 50Hz models Model Size 80 85 25 50 EVAPORATOR COIL- A-Frame - Copper Tube/Aluminum Fin Face Area - sq. ft. (sq. m) 24.65 (2.3) 24.65 (2.3) 56.2 (5.2) 56.2 (5.2) Rows of Coil 6 6 6 6 Face Velocity - FPM (m/s) - Std. Air Vol. 389.5 (2.0) 42.9 (2.2) 320.3 (.6) 320.3 (.6) REHEAT SECTION Electric Three-Stage, Stainless Steel Fin Tubular; capacity does not include fan motor heat Capacity - kw (KBTUH) - Std Selection 5 (5.20) 5 (5.20) 30.0 (02.4) 30.0 (02.4) Capacity - kw (KBTUH) - Opt Selection 0 (34.3) 0 (34.3) 0.0 (34.) 0.0 (34.) HUMIDIFIER SECTION Infrared Humidifier Capacity, lb./hr. (kg/h) 22.0 (0.0) 22.0 (0.0) 22.0 (0.0) 22.0 (0.0) FILTER SECTION - Disposable Type - Nominal Sizes and Quantities Nominal Size, inches 25 x 20 25 x 20 2.5 x 24 2.5 x 24 Quantity 4 4 0 0 Line Sizes Liquid Line - O.D. Copper (2/unit), up to 300 eq. ft 7/8" 7/8" 7/8" -/8" Hot Gas Line - O.D. Copper (2/unit), up to 300 eq. ft. -/8" -/8" -3/8" -3/8" Infrared Humidifier - O.D. Copper /4" /4" /4" /4" Condensate Drain - FPT 3/4" 3/4" -/8" -/8" Condensate Drain w/opt Condensate Pump - OD /2" /2" /2" /2" Liebert DSE 6

Air-Cooled Performance Data Table 5 Unit Voltage Rating 208V, 60Hz 230V, 60Hz 380V, 60Hz 460V, 60Hz 575V, 60Hz Electrical data DA080, 50/60Hz Humidifier Options Reheat Options Standard kw None Standard kw None Infrared Infrared None None FLA 9.2 9.2 97. 92.6 WSA 28.5 28.5 6.8 0.9 OPD 50.0 50.0 25.0 25.0 FLA 4.8 4.8 94.6 92.6 WSA 24. 24. 3.7 0.9 OPD 50.0 50.0 25.0 25.0 FLA 74.8 74.8 62.6 62.6 WSA 8.4 8.4 69.2 69.2 OPD 00.0 00.0 90.0 90.0 FLA 59.6 59.6 48.0 48.0 WSA 64.6 64.6 57.6 53.0 OPD 80.0 80.0 70.0 70.0 FLA 46.6 46.6 35.8 35.0 WSA 50.2 50.2 43.2 38.6 OPD 60.0 60.0 50.0 50.0 FLA 64.0 64.0 52.2 5.2 380-45V, 50Hz WSA 69.2 69.2 62.8 56.4 OPD 80 80 70 70. FLA = Full Load Amps; WSA = Wire Size Amps; OPD = Maximum Overcurrent Protection Device. 2. Full-load amperage values do not reflect operating amperage values. Table 6 Unit Voltage Rating 208V, 60Hz 230V, 60Hz 380V, 60Hz 460V, 60Hz 575V, 60Hz Electrical data DA085, 50/60Hz Humidifier Options Reheat Options Standard kw None Standard kw None Infrared Infrared None None FLA 52.2 52.2 25.6 25.6 WSA 65.6 65.6 39.0 39.0 OPD 200.0 200.0 75.0 75.0 FLA 47.8 47.8 25.6 25.6 WSA 6.2 6.2 39.0 39.0 OPD 200.0 200.0 75.0 75.0 FLA 74.8 74.8 62.6 62.6 WSA 8.4 8.4 69.2 69.2 OPD 00.0 00.0 90.0 90.0 FLA 6.0 6.0 49.4 49.4 WSA 66.2 66.2 58.5 54.6 OPD 80.0 80.0 70.0 70.0 FLA 50.8 50.8 39.2 39.2 WSA 54.9 54.9 45.8 43.3 OPD 70.0 70.0 50.0 50.0 FLA 7.2 7.2 58.4 58.4 380-45V, 50Hz WSA 77.3 77.3 67.3 64.5 OPD 00 00 80 80. FLA = Full Load Amps; WSA = Wire Size Amps; OPD = Maximum Overcurrent Protection Device. 2. Full-load amperage values do not reflect operating amperage values. 7 Liebert DSE

Air-Cooled Performance Data Table 7 Unit Voltage Rating 208V, 60Hz 230V, 60Hz Electrical data DA25, 50/60Hz Humidifier Options Reheat Options Standard kw None Standard kw None Infrared Infrared None None FLA 74.6 74.6 65.7 48.0 WSA 93.2 82.3 93.2 55.7 OPD 200.0 200 200.0 75.0 FLA 70.2 70.2 65.2 48.0 WSA 92.5 77.9 92.5 55.7 OPD 200.0 200 200.0 75.0 380V, 60Hz WSA 02.7* 97.9* 02.7* 85.7* FLA 93.6 * 93.6* 88.* 8.4* OPD 0* 0* 00* 00* 460V, 60Hz 575V, 60Hz FLA 79.9 79.9 78.8 68.3 WSA 92.2 83.5 92.2 7.9 OPD 00.0 90.0 00.0 80.0 FLA 63.4 63.4 60.5 5.8 WSA 70.7 66. 70.7 54.5 OPD 80.0 70.0 80.0 60.0 FLA 05.4 05. 95.9 92.6 380-45V, 50Hz WSA.7 0.4.7 97.6 OPD 25 25 0 0. 380V version of DA25 is not CSA- listed. 2. FLA = Full Load Amps; WSA = Wire Size Amps; OPD = Maximum Overcurrent Protection Device. 3. Full-load amperage values do not reflect operating amperage values. Table 8 Unit Voltage Rating 380V, 60Hz 460V, 60Hz 575V, 60Hz Electrical data DA50, 50-60Hz Humidifier Options Reheat Options Standard kw None Standard kw None Infrared Infrared None None FLA 30.4 30.4 8.2 8.2 WSA 37 37 28. 24.8 OPD 50 50 50 50 FLA 02.7 02.7 93.7 9. WSA 07.7 07.7 04.3 96. OPD 25 25 0 0 FLA 77.8 77.8 69.3 66.2 WSA 8.4 8.4 77.2 69.8 OPD 90 90 80 80 FLA 08.2 08.2 99.7 95.4 380-45V 50Hz WSA 3.4 3.4. 00.6 OPD 25 25 25 0. FLA = Full Load Amps; WSA = Wire Size Amps; OPD = Maximum Overcurrent Protection Device. 2. Full-load amperage values do not reflect operating amperage values. Liebert DSE 8

Table 9 Unit Voltage Rating 380V, 60Hz 460V, 60Hz Electrical data DA65, 60Hz Humidifier Options Air-Cooled Performance Data Reheat Options Standard kw None Standard kw None Infrared Infrared None None FLA 30.4 30.4 8.2 8.2 WSA 37 37 28. 24.8 OPD 50 50 50 50 FLA 05.5 05.5 95.8 93.9 WSA 0.7 0.7 06.6 99. OPD 25 25 0 0 FLA 86.2 86.2 75.6 74.6 575V, 60Hz WSA 90.3 90.3 84 78.7 OPD 00 00 90 90. FLA = Full Load Amps; WSA = Wire Size Amps; OPD = Maximum Overcurrent Protection Device. 2. Full-load amperage values do not reflect operating amperage values. Table 0 Electrical data Liebert MC three- and four-fan, three-phase condensers Model MCL0 MCM60 MCL65 MCL220 Input Voltage FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD 208/230.4 2.8 5 9.2 9.8 5 7. 8.5 20 22.8 24.2 25 460 5.6 6.3 5 5.6 6.0 5 8.4 9. 5.2.9 5. FLA = Full Load Amps; WSA = Wire Size Amps; OPD = Maximum Overcurrent Protection Device. 2. Must be connected to wye 3-phase systems with solidly grounded neutral. Table Model # Condenser shipping weights, dimensions and volume, approximate Number of Fans MCS028 MCS056 2 MCM040 MCM080 2 MCM60 4 MCL055 MCL0 2 MCL65 3 MCL220 4 Weight lb (kg) 359 (63) 562 (255) 439 (99) 769 (349) 509 (684) 552 (250) 962 (436) 364 (69) 835 (832) Domestic Packaging Dimensions L x W x H in. (cm) 76 x 36 x 63 (93 x 9 x 60) 22 x 36 x 63 (30 x 9 x 60) 76 x 36 x 63 (93 x 9 x 60) 22 x 36 x 63 (30 x 9 x 60) 256 x 36 x 63 (650 x 9 x 60) 76 x 36 x 63 (93 x 9 x 60) 36 x 36 x 63 (345 x 9 x 60) 96 x 36 x 63 (498 x 9 x 60) 256 x 36 x 63 (650 x 9 x 60) Volume ft 3 (m 3 ) Weight lb (kg) 00 (2.8) 476 (26) 79 (5.0) 734 (333) 00 (2.8) 556 (252) 79 (5.0) 94 (427) 336 (9.5) 834 (832) 00 (2.8) 669 (303) 79 (5.0) 34 (54) 257 (7.3) 69 (734) 336 (9.5) 260 (980) Export Packaging Dimensions (L x W x H) in. (cm) 77 x 37 x 64 (96 x 94 x 63) 23 x 37 x 64 (32 x 94 x 63) 77 x 37 x 64 (96 x 94 x 63) 23 x 37 x 64 (32 x 94 x 63) 257 x 37 x 64 (653 x 94 x 63) 77 x 37 x 64 (96 x 94 x 63) 37 x 37 x 64 (348 x 94 x 63) 97 x 37 x 64 (500 x 94 x 63) 257 x 37 x 64 (653 x 94 x 63) Volume ft 3 (m 3 ) 06 (3.0) 88 (5.3) 06 (3.0) 88 (5.3) 352 (0) 06 (3.0) 88 (5.3) 270 (7.7) 352 (0). Packaged weights will increase with factory options, such as legs taller than 8" (457mm), coated coils and seismic options. See Tables 2,and 3 for option weights to add to the packaged weights above. Consult factory for additional information. 2. Receivers and 60" legs are shipped separately from the condenser. 9 Liebert DSE

Table 2 Liebert MCM condenser and option net weights Condenser Model MCM60 Refrigeration Circuits 2 8" Leg 860 (390) Condenser Dry 36" Leg 066 (484) Weight, lb (kg) 48" Leg 4 (505) 60" Leg 60 (526) Additional Weight for Options, lb (kg) Liebert DSE Receiver DA080/085 88 (40) Liebert DSE Receiver DA25/50/65 84 (83) Coated Coil 20 (9). Total weight is the sum of condenser weight + receiver weight ( Liebert DSE receiver) + coated coil weight. 2. Source: DPN003034, Rev. 0 Table 3 Liebert MCL condenser and option net weights Air-Cooled Performance Data Condenser Model MCL0 MCL65 MCL220 Refrigeration Circuits 2 2 8" Leg 602 (273) 602 (273) 89 (404) 86 (538) 86 (538) Condenser Dry 36" Leg 766 (347) 766 (347) 36 (55) 453 (659) 453 (659) Weight, lb (kg) 48" Leg 798 (362) 798 (362) 84 (537) 50 (68) 50 (68) 60" Leg 829 (376) 829 (376) 230 (558) 547 (702) 547 (702) Additional Weight for Options, lb (kg) Liebert DSE Receiver DA080/085 45 (20) 90 (4) 45 (20) 90 (4) Liebert DSE Receiver DA25/50/65 94 (43) 88 (85) 94 (43) 94 (43) 88 (85) Coated Coil 6 (7) 6 (7) 24 () 32 (5) 32 (5). Total weight is the sum of condenser weight + receiver weight (Liebert DSE receiver) + coated coil weight. 2. Source: DPN003034, Rev. 0 Liebert DSE 0

Dimensions and Equipment Layout 3.0 DIMENSIONS AND EQUIPMENT LAYOUT Figure 3 Cabinet and floor planning dimensions Downflow, air-cooled, DA080, DA085, scroll and digital scroll compressor models 33" (838mm) 35" (889mm) Secondary Refrigerant Piping Entrance 80" (2032mm) Opening AIR INLET OPENING 24-5/8" (625mm) Opening Notes. Filters are accessible through top of unit only. 2. Downflow electrical connections can be made from top or bottom of unit. Secondary Entrance High-Voltage Connection(s) -3/4" (44mm) Handle TOP VIEW 5/6" (8mm) Bezel Secondary Entrance Low-Voltage Connections Minimum required for filter replacement A 5" (27mm) 76" (930mm) 2" (5mm) B FRONT VIEW Shaded area indicates a recommended minimum clearance for component access DPN00338 Rev. 34" (864mm) Model No. DA080 DA085 Weights, lb. (kg) Air-Cooled 2200 (998) 2250 (02) Dual-Cool N/A N/A Dimensions, in. (mm) Air-Cooled A 00 (2540) 00 (2540) Air Cooled B 99 (255) 99 (255) Source: DPN00338, Rev. 0 Liebert DSE

Dimensions and Equipment Layout Figure 4 Cabinet and floor planning dimensions Upflow, air-cooled, DA080U, DA085U, scroll and digital scroll compressor models Alternate Refrigerant Piping Entrance 33" (838mm) 35" (883mm) High-Voltage Connection(s) 3-/4" (8mm) TOP VIEW 00" (2539mm) 3/4" (9mm) Bezels Low-Voltage Connection(s) Minimum required for blower replacement 24" (60mm) 76" (929mm) 2" (50mm) 99" (257mm) FRONT VIEW Front air return unit shown. For rear return unit, in addition to front service area shown, also include 25" (635mm) on one side of unit for access to rear return filter box. See DPN0096. APPROXIMATE DRY WEIGHT, lb (kg) DA080U - DA085U: 250 (977) Shaded area indicates a recommended minimum clearance for component access 34" (864mm) DPN002950 Rev. 0 Liebert DSE 2

Dimensions and Equipment Layout Figure 5 Cabinet and floor planning dimensions Downflow, air-cooled, DA25, DA50 and DA65, tandem scroll compressor models Filter Plenum (shipped separately) Secondary Refrigerant Piping Entrance 7-/6" (2989mm) Opening Filters are removed though the front of the plenum. 48" (29mm) 47" 94mm) 45" (43mm) -3/4" (44mm) Handle TOP VIEW 42" (067mm) Opening 5/6" (8mm) Bezel Striated area indicates the recommended minmum clearance for component access. 24" (60mm) Shaded area indicates the required minimum clearance below the unit to lower the fans into the floor.fans also remain in their shipped position if desired. 44" (3658mm) 45" (43mm) Plenum 8" (457mm) 76" (930mm) Base Unit 42" (3607mm) FRONT VIEW 94" (2388mm) Total Height " (25mm) Typical 45" (43mm) 47" 94mm) Dry Weights, Approximate DA25: 3465 lb. (572kg) DA50/65: 3574 lb. (62kg) DPN00375 Rev. 3 Liebert DSE

Dimensions and Equipment Layout 3. Floor Stand Dimensions Figure 6 Floor stand and floor planning dimensions, DA080, DA085 3/4" (9mm) 7" (432mm) 99" (255mm) Piping Access Area 3-/2" (800mm) 32" (83mm) Center Feet 3/4" (9mm) 97-/2" (2477") Support Feet Centers 32-3/4" (832mm) See Note 4 3/4" (9mm) 99" (255mm) " (25mm) 33" (838mm) 7/8" (23mm) A * 3" (76mm) 00-/2" (2553mm). This floor stand should be used when EC fans are intended to be lowered under a raised floor. The standard floor stand can be used if the fans are to remain raised. 2. Right side of paneled unit is flush with right side of floor stand. All other paneled sides overhang floor stand " (25mm). 3. The floor stand used with EC units is not symmetrical and its orientation to the Liebert DSE is critical for lowering the EC fans. Unless the floor stand is installed in the correct position, the blowers will not lower into the floor stand. 4. Jack and jack support are shipped loose and are intended to be placed into position under each fan and used to lower or raise that fan as needed. DPN00373 *Leveling feet are provided with ±-/2 (38mm) adjustment from nominal height F. Rev. 0 35" (889mm) Overall Depth Height, A * In. (mm) 24 (60) 30 (762) 36 (94) 42 (067) 48 (29) Liebert DSE 4

Dimensions and Equipment Layout Figure 7 Floor stand dimensions Downflow, DA25, DA50 and DA65 models D C + -/2" (38mm) With Feet C 46-/2" (8mm) Outside of End Feet 43-/2" (05mm) Center of Feet 47" (94mm) Overall 43" (092mm) 3/4" (9mm) Typical 8-/2" (300mm) Center of Feet 59-/4" (505mm) Center Feet 20-3/4" (3067mm) Center of Feet " (25mm) Typical 45" (43mm) 7/8" (23mm) Typical B A See Note 6 3" (76mm) Typical Height, in. (mm) Dimensions, in. (mm) A * B * Coolant C D 24 (60) Air-Cooled 42 (3607) 2 (533) 30 (762) Water/Glycol Cooled 64" (466mm) 43" (092mm) 36 (94) 5 (27) 42 (067) (279). Leveling feet have ±-/2" (38mm) adjustment from nominal height A. 48 (29) 7 (432) 2. Source: DPN00377, Rev. 2 47" (94mm) NOTES. This floor stand should be used when EC fans are intended to be lowered into the floor stand. The standard Liebert floor stand can be used if the fans are to remain in their original raised position. 2. All paneled sides of unit overhang floor stand " (25mm). 3. The floor stand used with EC units is not symmetrical, and proper orientation required for lowering the blowers. The blowers will not lower into the floor stand unless the floor stand is installed in the correct position. 4. The jack and jack support are shipped loose and are intended to be placed into position under each fan and used to lower or raise that fan. 5. Jack to lower blowers not provided with 8" floorstand. 6. Leveling feet are provided with ±-/2" (38mm) adjustment from nominal height A. DPN00377 Rev. 2 5 Liebert DSE

Piping Schematics 4.0 PIPING SCHEMATICS Figure 8 Primary connection locations Downflow, air-cooled DA080 and DA085, scroll compressor models Note: Drawing not to scale. Tolerance on all piping dimensions is ± /2" (3mm). A FRONT VIEW SECTION A-A A All dimensions from rear corner of unit including panels X O 5" (27mm) R Y 5" (379mm) L L2 G G2 ECS ECR CD Blower Outlet B LV LV2 LV3 35" (899mm) E E2 HUM 00" (2540mm) FRONT OF UNIT DPN00282 Rev. 3 Point Description X, in. (mm) Y, in. (mm) Connection Size / Opening in. (mm) R Refrigerant Access 82-7/8 (205) 3-/ (348) 5 x 5 (379 x27) L Liquid Line System 94-/6 (2405) 6-3/4 (425) /2" / 5/8" Cu Sweat L2 Liquid Line System 2 9-7/8 (2334) 6-3/4 (425) /2" / 5/8" Cu Sweat G Hot Gas Discharge 88-3/4 (2254) 6-3/8 (46) 7/8" / -/8" Cu Sweat G2 Hot Gas Discharge 2 85-9/6 (273) 6-3/8 (46) 7/8" / -/8" Cu Sweat Condensate Drain CD (Infrared Humidifier or No Humidifier) 68-3/8 (737) 3-3/8 (797) 3/4" FPT W/ Optional Pump 68-3/8 (737) 3-3/8 (797) /2" Cu Sweat Hum Humidifier Supply Line 76-/2 (943) 29 (736) /4" Cu Sweat E Electrical Connection (High-Voltage) 78-/2 (994) 3-/8 (790) 2-/2" E2 Electrical Connection (High-Voltage) 75-3/8 (95) 3-/8 (790) 2-/2" LV Electrical Connection (Low-Voltage) 2 (5) 29 (737) 7/8" LV2 Electrical Connection (Low-Voltage) 2 (5) 30-7/8 (784) 7/8" LV3 Electrical Connection (Low-Voltage) 2 (5) 32 (83) 7/8" B Blower Outlet 4-/2 (4) 33 (838) 58-3/8 x 30 (483 x 762). Field pitch condensate drain line a minimum of /8" (3.2mm) per foot (305mm). All units contain a factory-installed condensate trap. Do not trap external to the unit. Drain line may contain boiling water; select appropriate drain system materials. The drain line must comply with all local codes. 2. Source: DPN00282, Rev. 3 Liebert DSE 6

Piping Schematics Figure 9 Primary connection locations Downflow, air-cooled, DA25, scroll compressor models A NOTE: Drawing not to scale. Tolerance on all piping dimensions is ±/2" (3mm). FRONT VIEW SECTION A-A A All dimensions from rear corner of unit including panels X O 3-3/8" (86mm) G G2 L2 L R Y 9" (483mm) CD E E2 HUM 4" (04mm) Typical AIR DISCHARGE AREA 44" (3657mm) 29-5/6" (744mm) Typical AIR DISCHARGE AREA FRONT EDGE OF UNIT Opening for conduit chase, E and E2 are openings for conduit for connections to 2-/2", -3/4" and -3/8" knockouts at electric panel DX Only DX with Liebert EconoPhase Point Description X inches (mm) Y inches (mm) Connection Size/ Opening, inches (mm) R Refrigerant Access 22-5/6 (306) 2-/8 (333) 9 x 3-3/8 (483 x 86) 9 x 3-3/8 (483 x 86) L Liquid Line System 27-7/8 (3248) 3-3/4 (348) 7/8 Cu Sweat 7/8 Cu Sweat L2 Liquid Line System 2 24-3/6 (370) 3-3/4 (348) 7/8 Cu Sweat 7/8 Cu Sweat G Hot Gas Discharge 40 (3554) 4 (355) -/8 Cu Sweat -3/8 Cu Sweat G2 Hot Gas Discharge 2 36-/6 (347) 4 (355) -/8 Cu Sweat -3/8 Cu Sweat Condensate Drain (infrared humidifier or no humidifier) 0 (2794) 35-/6 (89) -/8 FPT -/8 FPT CD Condensate Drain (steam generating humidifier) Consult Factory W/ Optional Pump 0 (2794) 35-/6 (89) /2 Cu Sweat /2 Cu Sweat HUM Humidifier Supply Line 0-/4 (2572) 43 (09) /4 Cu Sweat /4 Cu Sweat HS Hot Water Reheat Supply Consult Factory HR Hot Water Reheat Return Consult Factory E Electrical Connection (High-Voltage) 3 (2870) 42-/2 (080) 2-/2 2-/2 E2 Electrical Connection (High-Voltage) 0 (2794) 42-/2 (080) 2-/2 2-/2 LV Electrical Connection (Low-Voltage) 2-/2 (64) 36 (94) 7/8 7/8 LV2 Electrical Connection (Low-Voltage) 2-/2 (64) 37-/2 (952) 7/8 7/8 LV3 Electrical Connection (Low-Voltage) 2-/2 (64) 39 (99) 7/8 7/8 B Blower Outlet 5-/8 (3) 44 (7) 93 x 4 (2362 x 04) 93 x 4 (2362 x 04). Field pitch condensate drain line a minimum of /8" (3.2mm) per foot (305mm). All units contain a factory-installed condensate trap. Do not trap external to the unit. Drain line may contain boiling water; select appropriate drain system materials. The drain line must comply with all local codes. 2. Source: DPN00232, Rev. 4, Pg. LV LV2 LV3 B DPN00232 Pg., Rev. 4 47" (93mm) 7 Liebert DSE

Piping Schematics Figure 0 Primary connection locations Downflow, air-cooled, DA50, scroll compressor models A NOTE: Drawing not to scale. Tolerance on all piping dimensions is ±/2" (3mm). FRONT VIEW SECTION A-A A All dimensions from rear corner of unit including panels X O 3-3/8" (86mm) L L2 G G2 R Y 9" (483mm) CD E E2 HUM 4" (04mm) Typical AIR DISCHARGE AREA 29-5/6" (744mm) Typical AIR DISCHARGE AREA LV LV2 LV3 B 47" (93mm) 44" (3657mm) FRONT EDGE OF UNIT Opening for conduit chase, E and E2 are openings for conduit for connections to 2-/2", -3/4" and -3/8" knockouts at electric panel. DPN00232 Pg. 2, Rev. 4 DX Only DX with Liebert EconoPhase Point Description X inches (mm) Y inches (mm) Connection Size/ Opening, inches (mm) R Refrigerant Access 22-5/6 (306) 2-/8 (333) 9 x 3-3/8 (483 x 86) 9 x 3-3/8 (483 x 86) L Liquid Line System 40 (3554) 4 (355) -/8 Cu Sweat -/8 Cu Sweat L2 Liquid Line System 2 36-/6 (347) 4 (355) -/8 Cu Sweat -/8 Cu Sweat G Hot Gas Discharge 27-7/8 (3248) 3-3/4 (348) -3/8 Cu Sweat -3/8 Cu Sweat G2 Hot Gas Discharge 2 24-3/6 (370) 3-3/4 (348) -3/8 Cu Sweat -3/8 Cu Sweat Condensate Drain (infrared humidifier or no humidifier) 0 (2794) 35-/6 (89) -/8 FPT -/8 FPT CD Condensate Drain (steam generating humidifier) Consult Factory W/ Optional Pump 0 (2794) 35-/6 (89) /2 Cu Sweat /2 Cu Sweat HUM Humidifier Supply Line 0-/4 (2572) 43 (09) /4 Cu Sweat /4 Cu Sweat HS Hot Water Reheat Supply Consult Factory HR Hot Water Reheat Return Consult Factory E Electrical Connection (High-Voltage) 3 (2870) 42-/2 (080) 2-/2 2-/2 E2 Electrical Connection (High-Voltage) 0 (2794) 42-/2 (080) 2-/2 2-/2 LV Electrical Connection (Low-Voltage) 2-/2 (64) 36 (94) 7/8 7/8 LV2 Electrical Connection (Low-Voltage) 2-/2 (64) 37-/2 (952) 7/8 7/8 LV3 Electrical Connection (Low-Voltage) 2-/2 (64) 39 (99) 7/8 7/8 B Blower Outlet 5-/8 (3) 44 (7) 93 x 4 (2362 x 04) 93 x 4 (2362 x 04). Field pitch condensate drain line a minimum of /8" (3.2mm) per foot (305mm). All units contain a factory-installed condensate trap. Do not trap external to the unit. Drain line may contain boiling water; select appropriate drain system materials. The drain line must comply with all local codes. 2. Source: DPN00232, Rev. 4, Pg. 2 Liebert DSE 8

Piping Schematics Figure Primary connection locations Upflow, DA080U and DA085U NOTES. Drawing not to scale. 2. Tolerance on all piping dimensions is ± /2" (3mm). 3. Field-routed alternatives for refrigerant gas and liquid line connection points. 4. See submittal page DPN002748 for plenum dimensional data. 35" (889mm) 4" (02mm) 5" (27mm) 4-5/6" (379mm) 3. R R2 LL2GG2 3. 5-7/6" (392mm) HUM CPD E E2 All dimensions from rear corner of unit including panels 4. X LV LV2 LV3 O Y 6" (52mm) 00" (2540mm) TOP VIEW OF UNIT Front of Unit R3 7-3/6" (437mm) 3-7/8" (98mm) 3 4-/4" (362mm) 5-7/8" (403mm) CGD* LEFT SIDE SECTION VIEW OF UNIT 4-/8" (359mm) CGD* L L2 G G2 Factory Location FRONT SECTION VIEW OF UNIT (Left Front Panel Not Shown) DPN00295 Rev. Point Description X inches (mm) Y inches (mm) Connection Size/ Opening, inches (mm) R 3 Refrigerant Access (Top) 83-5/8 (224) -7/8 (48) 5-7/6 x 4 (392 x 02) R2 3 Refrigerant Access (Bottom) 82-5/6 (206) 3-5/8 (346) 4-5/6 x 5 (379 x 27) R3 3 Refrigerant Access (Side) 6 x 7-3/6 (52 x 437) L Liquid Line System 94-9/6 (2402) 6-3/4 (425) 5/8 Cu Sweat L2 Liquid Line System 2 9-7/8 (2334) 6-3/4 (425) 5/8 Cu Sweat G Hot Gas Discharge 88-7/8 (2257) 6-7/6 (48) -/8 Cu Sweat G2 Hot Gas Discharge 2 85-5/8 (275) 6-7/6 (48) -/8 Cu Sweat CGD Condensate Gravity Drain 3/4 FPT CPD Condensate Pump Discharge (Optional) 79-5/6 (205) -7/8 (302) /2 Cu Sweat HUM Humidifier Supply Line 79-5/6 (205) 9-7/8 (25 /4 Cu Sweat E Electrical Connection (High Voltage) 78-/8 (984) 30 (762) 2-/2 E2 Electrical Connection (High Voltage) 74-3/8 (889) 30 (762) 2-/2 LV Electrical Connection (Low Voltage) 2-5/8 (66) 29-/6 (738) 7/8 LV2 Electrical Connection (Low Voltage) 2-5/8 (66) 30-7/6 (773) 7/8 LV3 Electrical Connection (Low Voltage) 2-5/8 (66) 3-3/6 (808) 7/8. Field pitch condensate drain line a minimum of /8" (3.2mm) per foot (305mm). All units contain a factory-installed condensate trap. Do not trap external to the unit. Drain line may contain boiling water; select appropriate drain system materials. The drain line must comply with all local codes. 2. Source: DPN00295, Rev. 9 Liebert DSE

Piping Schematics Figure 2 Piping schematic Air-cooled, tandem compressor models, DA0805, DA085 Differential Check Valve -3/8" Liquid from Condenser See Note 2 Optional Liebert EconoPhase Unit Check Valve Differential Check Valve Liebert MC Condenser Liebert DSE Receiver 7/8" Liquid to Indoor Unit See Note 2 Ball Valve Solenoid Valve Ball Valve Includes Factory traps. No external trap required. Hot Gas Discharge -/8" Hot Gas Discharge from Indoor Unit See Note 2 DA080 and DA085 Service Valve LIQUID Evaporator Coil For rises over 25ft. (7.6m), trap every 20ft. (6m) or evenly divided* SUCTION Field-installed relief valves required for 50Hz EU CE units rated maximum 650PSIG (45bar) Check Valve Trap at base of risers over 5ft. (.5m)* Service Valve *Full Ported Ball Valve See Note 4 Check Valve HOT GAS DISCHARGE See Note 2 Electronic Expansion Valve Refrigerant Piping Field Piping Service/Schrader (Access) Connection, No Valve Core Service/Schrader (Access) Connection, With Valve Core LIQUID RETURN See Note 2 *Full Ported Ball Valve See Note 4 Differential Check Valve (Required) * Components are not supplied by Liebert but are required for proper circuit operation and maintenance.. Two refrigeration circuits provided. Single refrigeration circuit shown for clarity. 2. Circuit must be maintained between indoor unit, condenser and Liebert EconoPhase unit. Circuit 2 must be maintained between indoor unit, condenser and Liebert EconoPhase unit. 3. Schematic representation shown. Do not use for specific connection locations. 4. Port in ball must be the same diameter as the piping I.D. 5. Length of piping between condenser and indoor unit shall be no greater than 300 ft (9.4 m) (Maximum equivalent length of 450 ft [37.2 m]). 6. Vertical height of condenser above indoor unit must be no greater than 60ft (8.3m). 7. All indoor and outdoor field refrigerant piping must be insulated, /2" minimum thickness. All outdoor insulation must be UV- and ozone-resistant. DPN00265 Rev. 4 Liebert DSE 20

Figure 3 Piping schematic Air-cooled, tandem compressor models, DA25, DA50 and DA65 Piping Schematics Differential Check Valve -3/8" Liquid Line from Condenser See Note 2. Liebert MC Condenser Liebert DSE Receiver Optional EconoPhase Unit Check Valve Differential Check Valve DA25: 7/8" DA50: 7/8" or -/8" Liquid to Indoor Unit Depending on length of line See Note 2 Ball Valve Solenoid Valve Ball Valve Includes Factory Traps No External Trap Required Hot Gas Discharge -3/8" Hot Gas Discharge from Indoor Unit See Note 2. DA25 and DA50 Service Valve Liquid Suction Evaporator Coil For rises over 25ft. (7.6m), trap every 20ft. (6m) or evenly divided Field-installed relief valves required for 50Hz EU CE units rated maximum 650 PSIG (45 Bar) Check Valve * Trap at Base of Risers Over 5ft. (.5m) *Full Ported Ball Valve See Note 4. Check Valve Hot Gas Discharge See Note 2. Electronic Expansion Valve Refrigerant Piping Field Piping Service/Schrader (Access) Connection, No Valve Core Service/Schrader (Access) Connection, With Valve Core Liquid Return See Note 2.. Two refrigeration circuits provided. Single refrigeration circuit shown for clarity. 2. Circuit must be maintained between indoor unit, condenser and EconoPhase unit. Circuit 2 must be maintained between indoor unit, condenser and EconoPhase unit. 3. Schematic representation shown. Do not use for specific connection locations. 4. Port in ball must be the same diameter as the piping I.D. 5. Length of piping between condenser and indoor unit must be no greater than 300 ft (9.4 m) [Maximum equivalent length of 450 ft (37.2 m)]. 6. Vertical height of condenser above indoor unit shall be no greater than 60ft (8.3m). 7. All indoor and outdoor field refrigerant piping must be insulated, /2" minimum thickness. All outdoor insulation must be UV- and ozone-resistant *Full Ported Ball Valve See Note 4. * Components are not supplied by Emerson but are required for proper circuit operation and maintenance. DPN002340 Rev. 8 Differential Check Valve (Required) 2 Liebert DSE

Condensers Dimensions 5.0 CONDENSERS DIMENSIONS Figure 4 Cabinet and anchor dimensions, MCM60 Height to Top of Fan Guard H Emerson recommends a clearance of 36" (95mm) on each side for proper operation and component access Eyebolts for Lifting Condenser Provided on Four-Fan Models 575V Transformer Enclosure Option G A* A B F 3/6" (2mm) 2-/2" (64mm) C 2-/2" (64mm) 3-5/8" (93mm) /2" x " 2.7mm x 25.4mm) Obround -7/8" (48mm) TYPICAL FOOTPRINT E -7/8" (48mm) ANCHOR PLAN D 46" (68mm) Provided On Four-Fan-models Electric Box End 39-5/6" 999mm) 44-3/8" (27mm) DPN00272 Rev. 5 Liebert Model No. No. Fans MCM60 4 A A* (575V) B C D E Leg Height F G H in. (mm) in. (mm) in. (mm) in. (mm) in. (mm) in. (mm) in. (mm) in. (mm) in. (mm) 202-7/6 (542) 20-5/8 (5350) 3-/2 (2883) 92-/4 (4883) 94-7/6 (2398) 96-3/6 (2444). Cross-bracing required for legs longer than 8" (457mm). Quantity varies according to the model and options selected. 2. Source: DPN00272, Rev. 5 8 (457) 36 (94) 48 (29) 60 (524) 3-5/8 (803) 49-5/8 (260) 6-5/8 (565) 73-5/8 (870) 39-5/8 (006) 57-5/8 (464) 69-5/8 (768) 8-5/8 (2073) Liebert DSE 22

Figure 5 Liebert MC cabinet and anchor dimensions, MCL0, MCL65 and MCL220 Condensers Dimensions Height to Top of Fan Guard Emerson recommends a clearance of 36" (95mm) on each side for proper operation and component access H Eyebolts for Lifting Condenser Provided on 3&4 Fan Models G A* A B F 575V Transformer Enclosure Option 3/6" (2mm) 2-/2" (64mm) 3-5/8" (93mm) 2-/2" (64mm) 3-5/8" (93mm) /2"x" (2.7mm x 25.4mm) Obround -7/8" (48mm) C 55-/2" (409mm -7/8" (48mm) TYPICAL FOOTPRINT E ANCHOR PLAN D Provided on 3- and 4-Fan Models Electric Box End 53-7/8" (368mm) 48-3/4" (238mm) Liebert Model # Table 4 # of Fans MCL055 MCL0 2 MCL65 3 MCL220 4 Cabinet and anchor dimensions, MCL0, MCL65 and MCL220 A 68 (727 24-/8 (352) 80-/4 (4578) 236-5/6 (6003) Dimensions, In. (mm) A* (575V) B C D E 76-/8 (935) 32-/4 (3360) 88-3/8 (4786) 244-/4 (62) 73-7/6 (866) 29-9/6 (329) 56 (423) 2-/8 (2848) 68-/4 (4274) 224-3/8 (5699) 54-3/8 (38) 0-/2 (2806) 0-/2 (2806) 0-/2 (2806) 56-/8 (425) 2-/4 (285). *Cross-bracing required for legs longer than 8" (457mm). Quantity varies per model and options selected. 2. Source: DPN00246, Rev. 4 DPN00246 Rev. 4 Leg Height F G H 8 (457) 36 (94) 48 (29) 60 (524) 35-7/8 (9) 53-7/8 (368) 65-7/8 (673) 77-7/8 (978) 43-5/8 (08) 6-5/8 (565) 73-5/8 (870) 85-5/8 (275) 23 Liebert DSE

Condensers Dimensions Figure 6 Typical receiver mounting MCL0, MCL65, MCL220 units, left-side mounting outlet receiver Receiver Mounting Holes Single Circuit Typically 4 Places 4, 3, 2 DETAIL A 6 5 3 A 7 4 8 Trim piping as needed 3 2 2.3" (282.6mm) Notes. 2. 3. 3 Use Items 5 and 6 as needed for mounting Item. Item 2 to be used on MCL65 units. Item 3 to be used on MCL220 units. Small receiver shown. Actual receiver size may vary. 36" (94.4mm) Clearance required for viewing sight glass 64.3" (383.mm) Cross-Bracing Not Shown DPN002554 Pg., Rev. 4 Receiver and Bracket Assembly 2 Cap Screw HXDIN933M8-.25x25A2 8 3 Fender Washer DIN902 M8x24 A2 2 4 Lock Nut, Hex Nylon Insert, M8 8 7 90-degree Elbow FTGXC 7/8" Copper 8 Copper Formed Tube -/8" 2 Coupling, Copper -/8" 3 Reducer, Copper CXC -3/8" x -/8" 4 Reducer, Copper CXC -/8" x 7/8" 5 Support Leg 6 Fastener Assembly: Cap Screw, Lock Washer, Fender Washer 4 Source: DPN002554, Page, Rev. 4 Liebert DSE 24

Condensers Dimensions Figure 7 Typical receiver mounting MCL0, MCL65, MCL220 units, right-side mounting outlet receiver Receiver Mounting Holes Single Circuit Trim piping as needed 2 3 2 8 B 7 Typ. 4 Places 4, 3, 2 5 6 DETAIL B 9 3 4 5 6.3" (282.6mm) 3 64.3" (383.mm) Cross-Bracing Not Shown 36" (94.4mm) Clearance required for viewing sight glass Notes. Use Items 5 and 6 as needed for mounting Item. 2. 3. Item 2 to be used on MCL65 units. Item 3 to be used on MCL220 units. Small receiver shown. Actual receiver size may vary. DPN002554 Pg. 2, Rev. 4 Item # Description Quantity Receiver and Bracket Assembly 2 Cap Screw HXDIN933M8-.25x25A2 8 3 Fender Washer DIN902 M8x24 A2 2 4 Lock Nut, Hex, Nylon Insert, M8 8 5 Clamp Omega -/8" 7 6 Screw, Self-Drilling, HWH YZ 0-6 x 5/8" 2 7 90-degree Elbow FTGXFTG 7/8" Copper 8 Copper Formed Tube -/8" 9 Copper Formed Tube -/8" 2 2 Coupling, Copper -/8" 3 Reducer, Copper CXC -3/8" x -/8" 4 Reducer, Copper CXC -/8" x 7/8" 2 5 Support Leg 6 Fastener Assembly: Cap Screw, Lock Washer, Fender Washer 4 Source: DPN002554, Page 2, Rev. 4 25 Liebert DSE

Figure 8 Required receiver mounting MCM60 units, left-side mounting outlet receiver Condensers Dimensions Receiver mounting holes Single circuit Typically 4 Places 2 3 4 DETAIL A 5 6 A 7 8 Trim piping as needed.23" (285.3mm). Small receiver shown. Actual receiver size may vary 36" (94.4mm) Clearance required for viewing sight glass 54.45" (383.mm) Cross Bracing Not Shown DPN002383 Pg., Rev. 5 Item # Description Quantity Receiver and Bracket Assembly 2 Cap Screw HXDIN933M8-.25x25A2 8 3 Fender Washer DIN902 M8x24 A2 2 4 Lock Nut, Hex Nylon Insert, M8 8 7 90-degree Elbow FTGXC 7/8" Copper 2 8 Copper Formed Tube 7/8" 5 Support Leg 6 Fastener Assembly: Cap Screw, Lock Washer, Fender Washer 4 Source: DPN002383, Page, Rev. 5 Liebert DSE 26

Condensers Dimensions Figure 9 Required receiver mounting MCM60 units, right-side mounting outlet receiver Receiver Mounting Holes Single circuit DETAIL A Trim Piping As Needed 8 A 2 3 Typically 4 Places 4 5 6 5 6 9 7.23" (285.3mm) 54.49" (384.mm) Cross Bracing Not Shown 36" (94.4mm) Clearance required for viewing sight glass. Small receiver shown. Actual receiver size may vary DPN002383 Pg. 2, Rev. 5 Item # Description Quantity Receiver and Bracket Assembly 2 Cap Screw HXDIN933M8-.25x25A22 8 3 Fender Washer DIN902 M8x24 A2 2 4 Lock Nut, Hex Nylon Insert, M8 8 5 Clamp Omega 7/8" 6 Screw, Self-Drilling, HWH YZ 0-6 x 5/8" 2 7 90-degree Elbow FTGXC 7/8" Copper 8 Copper Formed Tube 7/8" 9 Copper Formed Tube 7/8" 5 Support Leg 6 Fastener assembly: Cap Screw, Lock Washer, Fender Washer 4 Source: DPN002383, Page 2, Rev. 5 27 Liebert DSE

Plenum Dimensions 6.0 PLENUM DIMENSIONS Figure 20 Plenum dimensions Downflow, DA080 and DA085 Height, A * in. (mm) 20 (508) 24 (60) 36 (94) 7/8" (22mm) Typical 80-/2" (2045mm) Return air inlet opening 32-/8" (86mm) Opening 34" (864mm) " (25mm) Plenum Hinged door for filter access 82-/4" (2089mm) 2" A (305mm) 76" (930mm) Liebert DSE Typical 53-77kW (5-22 Tons) unit orientation shown. View varies by unit size DPN0035 Pg. 2, Rev. 0 Liebert DSE 28

Plenum Dimensions 6. Outdoor Equipment Dimensions Figure 2 Plenum dimensions Upflow, DA080U and DA085U, EC fans Plenum Height * (Supply Air) Grille & Top Discharge 24" (60mm) Top Discharge Only 30" (762mm) Top Discharge Only 36" (94mm) 8" (2057mm) 32" (83mm) 0.88" (22.2mm) 3 20" (508mm) 4" (02mm) 2 Plenum Height * " (25mm) Both top duct opening and grilles shown. See specification sheet for specific application. 34" (864mm) 0.88" (22.2mm) " (25mm) 80" (2032mm) 82" (2083mm). 2. 3. NOTES Shaded areas indicate a recommended minimum clearance of 36" (94mm) from the floor to the top of the plenum. Must have access to remove the front grille or panel to remove EC fans. Top duct flanges on plenum top for supply air ducting when solid panel plenum is used. DPN003453 Rev. 0 29 Liebert DSE

Plenum Dimensions Figure 22 Liebert EconoPhase pump box dimensions, typical Electric Box End of Unit 42" (067mm) Minimum Clearance Pump Access Typical Both Sides 36" (94mm) Minimum Clearance 4-3/6" (22mm) 2-3/8" (543mm) 36" (94mm) Minimum Clearance -3/8" Liquid Line from Condenser 42-/8" (07mm) B ISOMETRIC VIEW 36-5/6" (939mm) 4-3/6" (23mm) 2-5/6" (54mm) REAR VIEW (PIPING END) A 9-3/8" (238mm) System Circuit 2 Liquid In System Circuit 2 Liquid Out 36-3/6"(99mm) 35-7/8" (9mm) FRONT VIEW System Circuit Liquid In System Circuit Liquid Out A 7/8" Liquid to Indoor Unit 40-/8" (09mm) 40-/6" (033mm) LEFT SIDE VIEW Approximate Unit Voltage Weight, lb (kg) 208/230, 460V 60Hz 340 (54) 380/400, 575V 60Hz 390 (77) 45V, 50Hz 347 (57) Ø 7/6" (mm) typical 8 places for unit mounting Ø 7/6" (mm) Typical 8 Places for unit mounting 40" (06mm) 39-3/8" (000mm) 5/8" (6mm) 2-5/6" (56mm) DPN002326 Rev. 4 DETAIL B 2-5/6" (328mm) 22-5/6" (582mm) 32-5/6" (836mm) 35-7/8" (9mm) SECTION A-A Liebert DSE 30

Plenum Dimensions Figure 23 Condenser and Liebert EconoPhase unit locations, typical unit arrangement diagram layout Top View Circuit Circuit 2 Top View Air-Cooled Condenser Entering Hot Gas Line 42" (067mm) CIRCUIT Minimum *Liquid line from Clearance Condenser -3/8". Do Not Trap Line Slope toward Liebert EconoPhase unit 2 in. per 0 ft. (50.8mm per 3m). Air-Cooled Condenser Entering Hot Gas Line CIRCUIT 2 Liquid Line to Liebert EconoPhase from Bottom of Receiver EconoPhase Unit * Liquid from Condenser -3/8" Do Not Trap Line Slope toward Liebert EconoPhase unit 2 in. per 0 ft. (50.8mm per 3m). * Liquid from Condenser -3/8" Do Not Trap Line Slope toward Liebert EconoPhase unit 2 in. per 0 ft. (50.8mm per 3m). CIRCUIT CIRCUIT 2 60" (524mm) 60" (524mm) leg height Typical; see Note. Factory-Supplied, Field-Installed Field Piping Notes:. For proper pump function, a minimum elevation difference of 60" (524 mm) must be maintained between the bottom of condenser box to the bottom of Liebert EconoPhase unit. 2. All indoor and outdoor field refrigerant piping must be insulated, /2" minimum. All outdoor insulation must be UV- and ozone-resistant. *Components are not supplied by Liebert but are recommended for proper circuit operation and maintenance. **Components supplied by Liebert and must be field-installed. DPN002324 Rev. 5 3 Liebert DSE

Disassembly 7.0 DISASSEMBLY Figure 24 Liebert DSE disassembly downflow air-cooled DA080, DA085 with EC fans Filter and Electric Box Assembly Forward curved blowers shown. Liebert DSE units only available with EC fans. Compressor Assembly Blower and Coil Assembly 39" (99mm) 76" (930mm) Assembled Height 76" (930mm) 37" (940mm) 59-7/6" (509mm) 33" (838mm) 7" (432mm) 82" (2083mm) 99" (255mm) Assembled Length DPN00340 Rev. 0 Drawing simplified with panels removed to show overall dimensions. See disassembly and handling instructions in installation manual. Table 5 Dry weights, DA080/085 including panels Component Weight, lb. (kg) Compressor Assembly 590 (269) Filter and Electric Box Assembly 250 (4) Blower and Coil Assembly 40 (64) Source: DPN00340, Rev. 0 Liebert DSE 32

Disassembly Figure 25 Liebert DSE disassembly dimensions, downflow air-cooled DA25 and DA50 models Filter Assembly 8" (457mm) Electric Box Assembly 40-/6" (034mm) Compressor Assembly Blower and Coil Assembly 94" (2388mm) Assembled Height 76" (930mm) 74-3/6" (884mm) 35" (889mm) 45" (43mm) 22" (558mm) 20" (3048mm) 42" (3607mm) Assembled Length Drawing views are simplified with panels removed to show overall dimensions. See disassembly and handling instructions in installation manual. DPN00378 Rev. 0 Table 6 Dry weights, DA25, DA50, including panels Dry Weight, lb. (kg) Component DA25 DA50 Compressor Assembly 630 (286) 739 (335) Electric Box Assembly 47 (89) 47 (89 Blower and Coil Assembly 228 (006) 228 (006) Filter Assembly 200 (9) 200 (9) Source: DPN00378, Rev. 0 33 Liebert DSE

Disassembly Figure 26 Liebert DSE disassembly dimensions, upflow air-cooled DA080U-DA085U Blower and Electric Box Assembly 3-/4" (794mm) Compressor Assembly Drawing views are simplified with panels removed to show overall dimensions. See disassembly and handling instructions in installation manual. Filter and Coil Assembly 76" 930mm) Assembled Height 76" (930mm) 45-3/6" (63mm) 33" (838mm) 7" (432mm) 99" (255mm) Assembled Length 82" (2083mm) DPN00366 Rev. 0 Table 7 DA080U-DA085U dry weight including panels) Component Weight, lb. (kg) Compressor Assembly 590 (269) Blower and Electric Box Assembly (EC Fans) 600 (272) Filter and Coil Assembly 960 (436). Fan weight not included in this unit weight. Fan is installed in plenum. See 3322 for plenum weight. 2. Source: DPN00366, Rev. 0 Liebert DSE 34

Electrical Connections 8.0 ELECTRICAL CONNECTIONS Figure 27 Electrical field connections, Liebert MC, Premium Efficiency Control Fan 2 Fan 5A 5B 7 5C 6 4 2 Left Knockout 3 Right Two Knockouts 0 SH 9 8 2 3 70 7 230 35 Liebert DSE

8. Standard Electrical Connections Liebert MC (Source: DPN00269, Rev. 7, Page ) Electrical Connections. Three-Phase Electrical Service Terminals are on top of the disconnect switch for one- and two-fan units. Terminals are on the bottom for the disconnect switch for three- and four-fan units. Three-phase service is not provided by Emerson (See Note 5 on page 38.) 2. Earth Ground A field lug terminal is available for earth ground connection. Ground the terminal strip to make a fan motor ground connection. 3. Primary High Voltage Entrance Two knockouts, each 7/8" (22.2mm) diameter, at the bottom of the enclosure. 4. Surge Protection Device (SPD) Field Connection Terminals High-voltage surge protective device terminals. (SPD is optional.) 5. CANbus Terminal Connections Terminals for field CANbus cable connection. a. 5A is the CANbus connectors TB49- is the input terminal for CANbus high. TB49-3 is the input terminal for CANbus low. TB50- is the output terminal for CANbus high. TB50-3 is the output terminal for CANbus low. Each CANbus cable shield is connected to Terminal SH, (see Item 9). b. 5B is the END OF LINE jumper c. 5C is the CANbus device address DIP switch. This CANbus cable is not supplied by Emerson (see Note 2 on page 38). 6. Remote Unit Shutdown Replace existing jumper between Terminals TB38- and TB38-2 with field-supplied normally closed switch having a minimum 75VA, 24VAC rating. Use field-supplied Class wiring. (This is an optional feature that may be owner-specified.) 7. Alarm Terminal Connections a. The Common Alarm Relay indicates when any type of alarm occurs. TB74- is common; TB74-2 is normally open; and TB74-3 is normally closed. A, 24VAC is the maximum load. Use field-supplied Class wiring. b. The Shutdown Alarm Relay indicates when a condenser loses power or when a critical alarm has occured that shuts down the condenser. TB74-4 is common; TB74-5 is normally open; and TB74-6 is normally closed. A, 24VAC is the maximum load. Use field-supplied Class wiring. 8. Indoor Unit Interlock and SPD Alarm Terminals a. On any call for compressor operation, normally open contact is closed across Terminals 70 and 7 for Circuit ; and from an indoor unit, normally open contact is closed across Terminals 70 and 230 for Circuit 2. b. During an SPD alarm, the normally open contact is closed across Terminals 2 and 3. (SPD is an optional device.) 9. CANbus Shield Terminal This terminal is for the field connection of the field-supplied CANbus cables. The shield of the field-supplied CANbus cables must not be connected to ground. 0. Primary Low-Voltage Entrance One knockout, 7/8" (22mm) diameter, free for customer low-voltage wiring.. Surge Protection Device Entrance One knockout, 7/8" (22mm) diameter, at the bottom of the enclosure. (High-voltage SPD is an optional device.) Liebert DSE 36

8.2 Notes on Electrical Connections Liebert MC Electrical Connections (Source: DPN00269, Rev. 7, Pages 2-3). Refer to specification sheet for the unit voltage rating, full load amp and wire size amp ratings. 2. The CANbus wiring is field-supplied and must be: Conductors 22-8AWG stranded tinned copper Twisted pair, minimum four twists per foot (305mm) Braided shield or foil shield with drain wire Shield must be wired to ground at the indoor unit Low capacitance (5pF/FT or less) UL-approved temperature rated to 67 F (75 C) UL-approved voltage rated to 300V UV-resistant and moisture-resistant if not run in conduit Plenum-rated NEC-type CMP, if required by national or local codes Examples: Belden 89207 (plenum-rated) or Alpha Wire 6454 (UV resistant outdoor rated) Category 5, 5e or higher 3. Do not run the CANbus cable in the same conduit, raceway or chase as high-voltage wiring. 4. No special considerations are required when the total external cable connection between the indoor unit and outdoor unit(s) is less than 450 ft. (37m). A CANbus isolator is required for total external cable connections greater than 450 ft. (37m) but less than 800 ft. (243m). 5. All wiring must be sized and selected for insulation case per National Electrical Code and other local electrical codes. 6. Do not bend cables to less than four times the diameter of the cable. 7. Do not deform cables when securing them in bundles or when hanging them. 8. Do not run cables near devices that may introduce noise, such as machines, fluorescent lights and electronics. 9. Do not stretch cables. NOTICE Risk of CANbus communication interference. Can cause improper operation. Separate high voltage wires and other high voltage sources from CAN wires by 2 inches (305mm). 8.2. Wye- vs. Delta-Connected Power Supply Figure 28 Wye- vs. delta-connected power supply connection diagram Wye-Connected Power Diagram Phase A Phase B Delta-Connected Power Diagram Phase A Winding C-A Winding A-B Phase B Winding B-C Phase C Ground Phase C 37 Liebert DSE

NOTICE Electrical Connections Risk of improper input power. Can cause equipment damage. The Liebert MC is designed to operate with wye-connected power with a solidly grounded neutral. It will not operate properly with wye-connected power with high-resistance (or impedance) ground or with delta-connected power NOTE A separate neutral wire does not need to be run to the Liebert MC. Acceptable Power Supplies for Liebert MC 208 to 575V Nominal Units Source: DPN002374, Pg. 3, Rev. 6 208V wye with solidly grounded neutral and 20V line-to-ground 380V wye with solidly grounded neutral and 220V line-to-ground 480V wye with solidly grounded neutral and 277V line-to-ground 575V wye with solidly grounded neutral and 332V line-to-ground (with step-down transformer) Unacceptable Power Supplies for Liebert MC 480V Nominal Units Source: DPN002374, Pg. 3, Rev. 6 Wye with high-resistance (or impedance) ground Delta without ground or with floating ground Delta with corner ground Delta with grounded center tap Liebert DSE 38

Electrical Connections Figure 29 Liebert EconoPhase pump box field electrical connections Field Connection From Condenser CANbus. Field Ground Connection. Wire Per Local Codes Wire Per Local Codes Field High Voltage Connection. Wire Per Local Codes. Optional Low-Voltage Field Wiring Connection 7/8" Knockout FRONT VIEW Optional High- Voltage Field Wiring Connection -8" Knockout Optional High Voltage Field Wiring Connection 2" Knockout Optional Low- Voltage Field Wiring Connections 7/8" Knockout DPN002327 Rev. 5 Optional High-Voltage Field Wiring Connections -/8" Knockouts Input Voltage Full Load Amps, FLA Minimum Supply Circuit Ampacity Maximum Fuse Size 208/230, 60Hz 3.8 5.5 20.0 380 */400, 60Hz 8.4 9.4 5.0 460, 60Hz 7.0 7.9 5.0 575, 60Hz 5.6 6.3 5.0 45, 50Hz 7.4 8.3 5.0 Source: DPN002327, Rev. 5 39 Liebert DSE

H L H L 3 3 ON SW6 3 3 3 3 3 3 3 TB50 OUT PUT 2 3 TB49 INPUT 2 3 CAN H CAN L TB50 CAN H OUTPUT 2 3 CANL TB49 INPU T 2 3 Figure 30 CANbus cable connections between indoor unit, Liebert MC and optional Liebert EconoPhase unit Electrical Connections Factory wiring between control boards and terminal strip 49- CANbus 49-3 Connections No Shield Connection DETAIL 4 CAN Cable Connection EconoPhase Control Board Single Circuit (Factory Set) CIRCUIT ONE ON CAN SW6 J6 EconoPhase Control Board Dual Circuit (Factory Set) CIRCUIT ONE ON CAN ON CAN SW6 SW6 J6 CIRCUIT TWO J6 4 Liebert EconoPhase Last Device on CANbus (If Present) TB50 OUTPUT 2 3 TB49 INPUT 2 3 CAN H CAN L TB50 TB49 P80 B A D58 J4 J6 P5 Two Two Condensers Condensers With EconoPhase CONDENSER 2 CONDENSER 2 J6 J6 ON ON C CONDENSER 2 BOOT PSWD SYS APP CAN SW6 CAN SW6 CONDENSER CONDENSER J6 J6 3 CAN ON ON CAN SW6 CAN SW6 DETAIL 3 CAN Cable Connection Low-voltage field entrance on bottom left of Condenser 2 enclosure CONDENSER 2 H SH 70 7 230 Factory wiring between Liebert MC control board and terminal strip B G 3 CONDENSER CONDENSER Low-voltage field entrance on bottom left of Condenser enclosure Component Notes:. Component appearance, orientation and position may vary between product lines. Terminal names and callouts remain constant. Cable Notes (A, B, C):. Field-supplied cable: shielded 24-8AWG stranded tinned copper twisted pair (minimum 8 twists per foot) low capacitance (5pF/ft or less) must be rated to meet local codes and conditions. examples Belden 89207 (plenum-rated), or Alpha Wire 6454 Category 5, 5e or higher. 2. Do not run in same conduit, raceway or chase as highvoltage wiring. 3. Contact factory for CANbus network lengths greater than 350ft (07m). Wire Notes (F, G,H):. Field-supplied wire: 8AWG or greater rated 600V 2. For single-circuit systems, run two wires from indoor unit to condenser(s). 3. For dual-circuit systems, run three wires from the indoor unit to first condenser and one wire from first condenser to second condenser (if present). SH SH 49-49-3 70 7 230 HEAT REJECTION INTERLOCK Shield Connection Factory wiring between Liebert MC control board and terminal strip Remove Jumper DETAIL 2 Heat Rejection Interlock 70 7 230 DETAIL CAN Cable Connection Factory Wiring Between Liebert icom and Terminal Strip A F 2 INDOOR UNIT 37 38 24 50 5 55 56 230 70 7 DPN00236 Rev. 4 Liebert DSE 40

Electrical Connections 8.3 Standard Electrical Field Connections, DA080 and DA085 Upflow and Downflow Source: DPN000807, Revision 2; refer to Figures 3 and 32. Primary High-Voltage Entrance Concentric knockouts, 2.5" (64mm);.75" (44mm);.375" (35mm) diameter in bottom of box. 2. Secondary High-Voltage Entrance Concentric knockouts, 2.5" (64mm);.75 (44mm);.375" (35mm) diameter in top of box. 3. Primary Low-Voltage Entrance Three knockouts, each.375" (35mm) diameter, in bottom of unit. 4. Secondary Low-Voltage Entrance Three knockouts, each. 375" (35mm) diameter, in top of box. 5. Three-Phase Electrical Service Terminals are on main fuse block (disregard if unit has optional disconnect switch). Three-phase service not by Emerson. 6. Earth Ground Terminal for field-supplied earth grounding wire. Earth grounding required for Liebert units. 7. Remote Unit Shutdown Replace existing jumper between Terminals 37 and 38 with field-supplied normally closed switch having a minimum 75VA, 24VAC rating. Use field-supplied Class wiring. 8. Customer Alarm Inputs Terminals for field-supplied, normally open contacts, having a minimum 75VA, 24VAC rating, between Terminals 24 and 50, 5, 55, 56. Use field-supplied Class wiring. Terminal availability varies by unit options. 9. Common Alarm On any alarm, normally open dry contact is closed across Terminals 75 and 76 for remote indication. A, 24VAC maximum load. Use field-supplied Class wiring. 0. Heat Rejection Interlock On any call for compressor operation, normally open dry contact is closed across Terminals 70 and 7 (Circuit ), 230 (Circuit 2) to heat rejection equipment. A, 24VAC maximum load. Use field-supplied Class wiring. Three wires must connect Terminals 70, 7 and 230 of the indoor unit to Terminals 70, 7 and 230 of the Liebert MC series condenser. Liebert DSE units must be connected to Liebert MC series condenser with premium control. The jumper between Terminals 7 and 230 must be removed. Three wires must connect terminals 70, 7, and 230 of the indoor unit to Terminals 70, 7 and 230 of the Liebert MC series condenser. 8.4 CANbus Electrical Connections, DA080 and DA085 Upflow and Downflow Source: DPN000807, Revision 2; refer to Figures 3 and 32. CANBus Connector Terminal block with Terminals 49- (CAN-H) and 49-3 (CAN-L) + SH (shield connection). The terminals are used to connect the CANBus communication cable (provided by others) from the indoor unit to the Liebert MC Premium Model and optional PRE unit. 2. CANbus Cable CANbus cable provided by others to connect to the outdoor condenser, and optional PRE unit. No special considerations are required when the total external cable connection between the indoor unit and outdoor unit(s) is less than 450 ft. (37m). ACANbus isolator is required for total external cable connections greater than 450 ft. (37m) but less than 800 ft. (243m). Cable must meet the following specifications: Conductors 22-8AWG stranded tinned copper Twisted pair (minimum four twists per foot) Braided shield or foil shield with drain wire Low-capacitance 5pF/FT or less UL-approved temperature rated to 67 F (75 C) UL-approved voltage rated to 300V UV-resistant and moisture-resistant if not run in conduit. Plenum-rated NEC type CMP (if required by national or local codes.) Examples: Belden 89207 (plenum rated), or Alpha Wire 6454 Category 5, 5E, or higher 4 Liebert DSE

Electrical Connections 8.5 Optional Electrical Field Connections, DA080 and DA085 Upflow and Downflow Source: DPN000807, Revision 2; refer to Figures 3 and 32 3. Unit Factory-Installed Disconnect Switch, Fuse Block and Main Fuses Two types of disconnect switches are available: non-locking and locking. The non-locking type consists of a non-automatic molded case switch operational from the outside of the unit. Access to the high-voltage electric panel compartment can be obtained with the switch in either the On or Off position. The locking type is identical except that access to the high-voltage electric panel compartment can be obtained only with the switch in the Off position. Units with fused disconnects are provided with a defeater button that allows access to the electrical panel when power is On. The molded case switch disconnect models contain separate main fuses. Units with fused disconnect have main fuses within the disconnect. Only fused disconnects are used on dual disconnect options. 4. Secondary Disconnect Switch and Earth Ground 5. Three-Phase Electrical Service Terminals are on top of the disconnect switch. Three-phase service not by Emerson. 6. Smoke Sensor Alarm Factory-wired dry contacts from smoke sensor are 9-common, 92-NO, and 93-NC. Supervised contacts, 80 and 8, open on sensor trouble indication. This smoke sensor is not intended to function as, or replace, any room smoke detection system that may be required by local or national codes. A, 24VAC maximum load. Use field-supplied Class wiring. 7. Reheat and Humidifier Lockout Remote 24VAC required at Terminals 82 and 83 for lockout of reheat and humidifier. 8. Condensate Alarm (with condensate pump option) On pump high water indication, normally open dry contact is closed across Terminals 88 and 89 for remote indication. A, 24VAC maximum load. Use field-supplied Class wiring. 9. Remote Humidifier On any call for humidification, normally open dry contact is closed across Terminals and 2 to signal field-supplied remote humidifier. A, 24VAC maximum load. Use field-supplied Class wiring. 20. Auxiliary Cool Contact On any call for Econ-O-Coil operation, normally open dry contact is closed across Terminals 72 and 73 on dual-cool units only. A, 24VAC maximum load. Use fieldsupplied Class wiring. 8.6 Optional Low-Voltage Terminal Package Field Connections, DA080 and DA085 Upflow and Downflow Source: DPN000807, Revision 2; refer to Figures 3 and 32 2. Remote Unit Shutdown Two additional contact pairs available for unit shutdown (labeled as 37B and 38B, 37C and 38C). Replace jumpers with field-supplied normally closed switch having a minimum 75VA, 24VAC rating. Use field-supplied Class wiring. 22. Common Alarm On any alarm, two additional normally open dry contacts are closed across Terminals 94 and 95 and 96 and 97 for remote indication. A, 24VAC maximum load. Use fieldsupplied Class wiring. 23. Main Fan Auxiliary Switch On closure of main fan contactor, normally open dry contact is closed across Terminals 84 and 85 for remote indication. A, 24VAC maximum load. Use field-supplied Class wiring. 24. Liebert Liqui-tect Shutdown and Dry Contact On Liebert Liqui-tect activation, normally open dry contact is closed across Terminals 58 and 59 for remote indication (Liebert Liqui-tect sensor ordered separately). A, 24VAC maximum load. Use field-supplied Class wiring. NOTE Refer to specification sheet for total unit full load amps, wire size amps and maximum overcurrent protective device size. Liebert DSE 42

Electrical Connections Figure 3 Electrical field connections, DA080 and DA085 upflow and downflow models, single molded case switch disconnect with main fuses Refer to Section 8.7 through 8.9 for keys to numbered items. 5 6 60 Hz 2 4 SINGLE MOLDED CASE SWITCH DISCONNECT WITH MAIN FUSES OVERCURRENT PROTECTION DEVICES CONTACTORS A CD B Alternate Location Liebert IntelliSlot Housing P64 P67 3 CONTACTORS, RELAYS, & OVERLOAD PROTECTORS 5 6 Note: Typical orientation of components shown. Component location varies by option and unit size. 7 8 9 22 6 9 E DA080/085 UPFLOW AND DOWNFLOW LOW-VOLTAGE SECTION 3 82 83 88 89 75 76 94 95 96 97 9 92 93 80 8 2 SH 24 A 23 2 7 B 8 0 20 49-49-3 2 58 59 84 85 37C38C37B 38B37 38 24 50 5 55 56 70 7230 72 73 C D DPN000807 Pg. 3, Rev. 2 Item 2 Installation Conditions. Follow all local installation codes. 2. Do not run CAN cables in same conduit, raceway or chase as high-voltage wires (20-600V). 3. Separate high-voltage wires from CAN wires by 2 in. (305mm) E 43 Liebert DSE

Electrical Connections Figure 32 Electrical field connections, DA080 and DA085 upflow and downflow models, dual-fused disconnect switches Refer to Section 8.7 through 8.9 for keys to numbered items. 2 DUAL-FUSED DISCONNECT SWITCHES Liebert IntelliSlot Housing 4 5 6 5 60 Hz 4 OVERCURRENT PROTECTION DEVICES CONTACTORS A C B D Alternate Location P64 P67 PRIMARY SECONDARY 3 CONTACTORS, RELAYS and OVERLOAD PROTECTORS 7 8 9 22 6 9 82 83 88 89 A 24 23 6 75 76 94 95 96 97 9 92 93 80 8 2 2 Typical orientation of components shown. Component location varies by option and unit size. 7 B 8 0 UPFLOW 20 3 E UPFLOW AND DOWNFLOW LOW-VOLTAGE SECTION CAUTION Risk of broken or shorted low-voltage wiring. Field-installed low-voltage wiring must be routed with loop as shown to allow electric box to swing. 3 58 59 84 85 37C38C37B 38B 37 38 24 50 5 55 56 70 7230 72 73 A B C D C D 49- SH 49-3 2 DPN000807 Pg. 4, Rev. 2 E Item 2 Installation Conditions. Follow all local installation codes. 2. Do not run CAN cables in same conduit, raceway or chase as high-voltage wires (20-600V). 3. Separate high-voltage from CAN wires by 2 in. (305mm) 4. Contact factory for runs greater than 350 ft. (07m). Point of hinged low-voltage electric box UPFLOW LOW-VOLTAGE SECTION E Liebert DSE 44

Electrical Connections 8.7 Liebert DSE Electrical Field Connection Descriptions, DA25, DA50 and DA65 Downflow Models Standard Electrical Connections Source: DPN00238, Revision 6 (See Figure 34 for connection locations). Primary high-voltage entrance 2.50" (64mm);.75" (44mm);.375" (35mm) diameter concentric knockouts located in bottom of box. 2. Primary low-voltage entrance Three knockouts in bottom of unit, each.375" (35mm) in diameter. 3. Three-phase electrical service Terminals are on top of the disconnect switch. Three-phase service not by Emerson. 4. Earth ground Terminal for field-supplied earth grounding wire and component ground terminal strip. Earth grounding required for Liebert units. 5. Remote unit shutdown Replace existing jumper between Terminals 37 and 38 with field-supplied normally closed switch having a minimum 75VA, 24VAC rating. Use field-supplied Class wiring. 6. Customer alarm inputs Terminals for field-supplied, normally open contacts, having a minimum 75VA, 24VAC rating, between Terminals 24 and 50, 5, 55, 56. Use field-supplied Class wiring. Terminal availability varies by unit options. 7. Common alarm On any alarm, normally open dry contact is closed across Terminals 75 and 76 for remote indication. A, 24VAC maximum load. Use field-supplied Class wiring. 8. Heat rejection interlock On any call for compressor operation, normally open dry contact is closed across Terminals 70 and 7 (Circuit ), 230 (Circuit 2) to heat rejection equipment. A, 24VAC maximum load. Use field-supplied Class wiring. 9. CANbus Connector Terminal block with terminals 49- (CAN-H) and 49-3 (CAN-L) + SH (shield connection). The terminals are used to connect the CANbus communication cable (provided by others) from the indoor unit to the Liebert MC premium model and optional PRE unit. 0. CANbus Cable CANbus cable provided by others to connect to the outdoor condenser and optional PRE unit. No special considerations are required when the total external cable connection between the indoor unit and the outdoor unit(s) is less than 450ft (37m) but less than 800ft (243m), a CANbus isolator is required. Cable must meet the following specifications: Conductors 22-8AWG stranded, tinned copper Twisted pair (minimum of four twists per foot [305mm]) Braided shield or foil shield with drain wire Low capacitance 5pf/ft or less UL approved temperature rated to 67 F (75 C) UL approved voltage rated to 300V UV- and moisture-resistant if not run in conduit. Plenum rated NEC type CMP, if required by national or local codes Examples are Belden 89207 (plenum-rated), or Alpha Wire 6454 Category 5, 5E, or higher. 8.8 Optional Electrical Connections, DA25, DA50 and DA65 Downflow Models Source: DPN00238, Revision 6 (See Figure 34 for connection locations). Factory-installed disconnect switch 2. Smoke sensor alarm Factory-wired dry contacts from smoke sensor are 9-common, 92-NO and 93-NC. Supervised contacts, 80 and 8, open on sensor trouble indication. This smoke sensor is not intended to function as or replace any room smoke detection system that may be required by local or national codes. A, 24VAC maximum load. Use field-supplied Class wiring. 3. Reheat and humidifier lockout Remote 24VAC required at Terminals 82 and 83 for lockout of reheat and humidifier. 4. Condensate alarm (with condensate pump option) On pump high water indication, normally open dry contact is closed across Terminals 88 and 89 for remote indication. A, 24VAC maximum load. Use field-supplied Class wiring. 5. Remote humidifier On any call for humidification, normally open dry contact is closed across Terminals and 2 to signal field-supplied remote humidifier. A, 24VAC maximum load. Use field-supplied Class wiring. 45 Liebert DSE

Electrical Connections 8.9 Optional Low-Voltage Terminal Package Connections, DA25, DA50 and DA65 Downflow Models Source: DPN00238, Revision 6 (See Figure 34 for connection locations) 6. Remote unit shutdown Two additional contact pairs available for unit shutdown (labeled as 37B and 38B, 37C and 38C). Replace jumpers with field-supplied normally closed switch having a minimum rating of 75VA, 24VAC. Use field-supplied Class wiring. 7. Common alarm On any alarm, two additional normally open dry contacts are closed across Terminals 94 and 95 and 96 and 97 for remote indication. amp, 24VAC maximum load. Use field-supplied Class wiring. 8. Main fan auxiliary switch On closure of main fan contactor, normally open dry contact is closed across Terminals 84 and 85 for remote indication. amp, 24VAC maximum load. Use field-supplied Class wiring. 9. Liebert Liqui-tect shutdown and dry contact On Liebert Liqui-tect activation, normally open dry contact is closed across Terminals 58 and 59 for remote indication (Liebert Liqui-tect sensor ordered separately). amp, 24VAC maximum load. Use field-supplied Class wiring NOTE Refer to specification sheet for total unit full load amps, wire size amps and maximum overcurrent protective device size. Figure 33 Electrical field connections for DA25, DA50 and DA65 downflow models High-Voltage Field Wiring Pathways Low-Voltage Field Wiring Pathways DPN00237 Pg., Rev. 5 Liebert DSE 46

Electrical Connections Figure 34 Electrical field connections for DA25, DA50 and DA65 downflow models Refer to Section 8.7 through 8.9 for keys to numbered items. Liebert IntelliSlot Housing 3 OVERCURRENT PROTECTION DEVICES P67 P64 A 4 CONTACTORS AND RELAYS OVERLOADS G B C D E F 4 Notes: Typical orientation of components shown. Component location varies by option and unit size. Refer to DPN00238 for descriptions of numbered callouts. Low-Voltage Section 2 6 7 7 24 50 5 55 56 75 76 94 95 96 97 A B 6 5 37C 38C 37B 38B 37 38 F 49-3 49- SH 9 3 4 82 83 88 89 C G 0 2 9 8 8 5 80 8 9 92 93 58 59 70 7 230 84 85 2 D E Item 0 Installation Conditions. Follow all local installation codes. 2. Do not run CAN cables in same conduit, raceway, or chase as high-voltage wires (20-600V). 3. Separate high-voltage wires from CAN wires by 2 in. (305mm). 4. For runs greater than 350ft (07m), contact Liebert factory. DPN00237 Pg. 2, Rev. 5 47 Liebert DSE

Guide Specifications 9.0 GUIDE SPECIFICATIONS.0 GENERAL. SUMMARY These specifications describe requirements for a Thermal Management system. The system shall be designed to control temperature and humidity conditions in rooms containing electronic equipment, with good insulation and vapor barrier. The manufacturer shall design and furnish all equipment to be fully compatible with heat dissipation requirements of the room..2 DESIGN REQUIREMENTS The Thermal Management system shall be a Liebert self-contained, factory-assembled unit with downflow air delivery. The system shall have a net total cooling capacity of kw (BTUH) with a net sensible cooling capacity of kw (BTUH) based on an entering air temperature of F ( C) dry bulb and F ( C) wet bulb. The unit is to be supplied with volt ph Hz electrical service. Net capacities shall include losses due to fan motor heat. The system cooling capacity shall be factory certified per ASHRAE27-2007, and the system sensible coefficient of performance (SCOP) shall exceed ASHRAE 90.-200..3 SUBMITTALS Submittals shall be provided after the agreement of the proposal and shall include: Single-Line Diagrams; Dimensional, Electrical and Capacity Data; Piping and Electrical Connection Drawings. 2.0 PRODUCT 2. FRAME The frame shall be welded, formed sheet metal. It shall be protected against corrosion using the autophoretic coating process. The frame shall be capable of being separated into three parts in the field to accommodate rigging through small spaces. 2.. Downflow Air Supply The supply air shall exit from the bottom of the unit. 2..2 Downflow Air Return The return air shall enter the unit from the top 2..3 Exterior Panels The exterior panels shall be insulated with a minimum in. (25mm),.5 lb. (0.68 kg) density fiber insulation. The main front panel shall have captive quarter-turn fasteners. The main unit color shall be. 2.2 FILTERS DA080, DA085 2.2. Filters, 4" MERV 8 Filters shall be deep pleated 4" filters with an ASHRAE 52.2 MERV8. 2.2. Filters, 4" MERV Filters shall be deep pleated 4" filters with an ASHRAE 52.2 MERV. 2.2. Filters, 2" MERV8 and 2" MERV Filters shall be deep pleated 2" filters with an ASHRAE 52.2 MERV8, plus 2" MERV filters. 2.2.2 Extra Filter Set extra set(s) of filters shall be provided per system. Liebert DSE 48

2.2 FILTERS DA25, DA50 AND DA65 Guide Specifications The filter plenum shall be exterior to the main cooling unit, and shall be field assembled and installed. The filters shall be removable from the front or top of the filter plenum. The filter plenum shall be painted to match the panel colors of the indoor cooling unit. 2.2. Filters, 4" MERV 8 Filters shall be deep pleated 4" filters with an ASHRAE 52.2 MERV8. 2.2. Filters, 4" MERV Filters shall be deep pleated 4" filters with an ASHRAE 52.2 MERV. 2.2. Filters, 4" MERV3 Filters shall be deep pleated 4" filters with an ASHRAE 52.2 MERV3. 2.2. Filters, 2" MERV8 and 2" MERV Filters shall be deep pleated 2" filters with an ASHRAE 52.2 MERV8, plus 2" MERV filters. 2.2. Filters, 2" MERV8 and 2" MERV3 Filters shall be deep pleated 2" filters with an ASHRAE 52.2 MERV8, plus 2" MERV3 filters. 2.2.2 Extra Filter Set extra set(s) of filters shall be provided per system. 2.3 FAN SECTION 2.3. Electronically Commutated (EC) Fan The fans shall be plug/plenum type, motorized impellers, single inlet and dynamically balanced. The drive package shall be direct drive, electronically commutated and variable speed. The fans shall be located to draw air over the A-frame coil to ensure even air distribution and maximum coil performance. EC fans shall be capable of being lowered into a raised floor (during field installation) with minimum height of 24" (609.6mm). EC fans shall also be capable of operating within the cooling cabinet, instead of under the floor. 2.4 HUMIDIFIER A humidifier shall be factory-installed inside the unit. Bypass air slots shall be included to enable moisture to be absorbed into the air stream. The humidifier capacity shall be 22.lb./hr (0 kg/hr). The humidifier shall be removable from the front of the cabinet. 2.4. Infrared Humidifier The humidifier shall be of the infrared type, consisting of high-intensity quartz lamps mounted above and out of the water supply. The humidifier pan shall be stainless steel and arranged to be removable without disconnecting high-voltage electrical connections. The complete humidifier section shall be pre-piped, ready for field connection to the water supply. The humidifier shall be equipped with an automatic water supply system and shall have an adjustable water-overfeed to prevent mineral precipitation. A high-water detector shall shut down the humidifier to prevent overflowing. A factory provided air gap shall prevent back-flow of the humidifier supply water. 2.5 REHEAT The Thermal Management unit shall include a factory-installed reheat to control temperature during dehumidification. 2.5. Three-Stage Electric Reheat The electric reheat coils shall be low watt density, 304/304 stainless steel fin tubular construction, protected by thermal safety switches, shall be kw ( BTUH) controlled in three stages. The reheat elements shall be removable from the front of the cabinet. A ground-current detection device shall disable reheat in the case where a ground-fault is detected in the reheat element. 49 Liebert DSE

Guide Specifications 2.6 DUAL REFRIGERATION SYSTEM Each unit shall include two (2) independent refrigeration circuits and shall include liquid line filter driers, refrigerant sight glass with moisture indicator and electronic expansion valves. Compressors shall be located outside the airstream and shall be removable and serviceable from the front of the unit. Each compressor circuit shall be connected to the full-face area of the evaporator coil. 2.6. Digital Scroll Compressors-DA080, DA085 The compressors shall be scroll-type with a variable capacity operation capability. Compressor solenoid valve shall unload the compressor and allow for variable capacity operation. The compressor shall have vibration isolators, thermal overloads, automatic reset high-pressure switch with lockout after three failures, rotalock service valves, suction line strainer and a maximum operating speed of 3500 RPM. The compressor motor shall be suction gas cooled. 2.6. Tandem Digital Scroll Compressors-DA25, DA50 and DA65 The compressors shall be tandem, scroll-type with a variable capacity operation capability of one compressor of the pair. Compressor solenoid valve shall unload the compressor and allow for variable capacity operation. The compressor shall have vibration isolators, thermal overloads, automatic reset high-pressure switch with lockout after three failures, rotalock service valves, suction line strainer and a maximum operating speed of 3500 RPM. The compressor motor shall be suction gas cooled. 2.6.. Crankcase Heaters The compressors shall include crankcase heaters, powered from the indoor unit electric panel. 2.6.2 Evaporator Coil The evaporator coil shall be A-frame design and have sq. ft. ( sq m) face area, six rows deep, with each circuit feeding three rows. It shall be constructed of rifled copper tubes and aluminum fins with a maximum face velocity of ft. per minute ( m/s) at CFM ( CMH). A stainless steel condensate drain pan shall be provided. 2.6.3 R-40A Refrigerant The system shall be designed for use with R-40A refrigerant, which meets the U.S. Clean Air Act for phase-out of HCFC refrigerants. Refrigerant shall be field supplied and field charged by the installing contractor. 2.7 ECONOPHASE CYCLE (OPTIONAL) (SELECT ONLY IF PR085 OR PR25 IS SELECTED) During cold outdoor temperatures, refrigerant pumps shall circulate refrigerant through the cooling system, in lieu of operating the compressors. The compressors shall ramp down during EconoPhase operation, and if able to completely offset the load, the control system shall shut the compressors off. Dual refrigerant pumps shall be housed in an enclosure, with each pump dedicated to its own refrigerant circuit. The EconoPhase system shall include a variable speed drive on each refrigerant pump to enable to pumps' speed to adjust in response to the load. 2.8 MISCELLANEOUS OPTIONS 2.8. Non-Locking Disconnect Switch (Optional) The manual disconnect switch shall be mounted in the high voltage section of the electrical panel. The switch shall be accessible with the door closed. The electrical system shall be rated for 65 ka, shortcircuit current rating (28kA at 575V). 2.8. Locking Disconnect Switch (Optional) The manual disconnect switch shall be mounted in the high-voltage section of the electrical panel. The switch shall be accessible from the outside of the unit with the door closed and shall prevent access to the high voltage electrical components until switched to the Off position. The electrical system shall be rated for 65 ka, short-circuit current rating (28kA at 575V). Liebert DSE 50

2.8.2 High-Temperature Sensor (Optional) Guide Specifications The high-temperature sensor shall be factory-installed in the unit and shall be factory-set to 25ºF (52ºC). It shall immediately shut down the environmental control system when activated. The sensor shall be mounted with the sensing element in the return air. 2.8.3 Smoke Sensor (Optional) The smoke sensor shall immediately shut down the Thermal Management system and activate the alarm system when activated. The smoke sensor shall be mounted in the electrical panel with the sensing element in the return air compartment. The smoke sensor is not intended to function as or replace any room smoke detection system that may be required by local or national codes. The smoke sensor shall include a supervision contact closure. 2.8.4 Condensate Pump, Dual Float (Optional) The condensate pump shall have a minimum capacity of 45 GPH (548 l/h) at 20 ft. (58 kpa) head. It shall be complete with integral dual-float switches, pump-and-motor assembly and reservoir. The secondary float shall send a signal to the local alarm and shut down the unit upon high water condition. 2.8.5 Low Voltage Terminal Package (Optional) Factory-installed and wired terminals shall be provided for customer connection to lock out the reheat and humidifier upon contact closure. Two (2) extra N/O common alarm contacts shall be provided. Two (2) extra remote shutdown terminals shall be provided. 2.8.6 Remote Humidifier Contact (Optional) A pair of N/O contacts shall be provided for connection to a remote humidifier. 2.8.7 Main Fan Overload A pair of N/O contacts shall be factory-installed and wired to indicate Main Fan Overload. 2.8.8 Compressor Overload (Optional) A pair of N/O contacts shall be factory-installed and wired to each compressor to indicate Compressor Overload. 2.9 AIR-COOLED SYSTEMS The indoor evaporator unit shall include refrigerant piping and shall have a factory holding charge of nitrogen. The hot-gas and liquid lines shall be spun shut and each shall include a factory-installed Schrader valve. Field-relief of the Schrader valve shall indicate a leak-free system from the factory. Installing contractor shall cut the evaporator piping and shall evacuate and charge the system. Refrigerant shall be supplied by the installing contractor. 2.9. Air-Cooled Condenser The Liebert-manufactured outdoor air-cooled condenser shall be the low profile, multiple direct drive, propeller fan type. The condenser shall balance the heat rejection of the compressor at F ( C) ambient. The condenser shall be constructed of a microchannel coil. 2.9.2 Liebert Liqui-tect Sensors (Optional (quantity) solid state water sensors shall be provided for installation under the raised floor. 2.0 FLOOR STAND The floor stand shall be constructed of a welded steel frame. The floor stand shall have adjustable legs with vibration isolation pads. The floor stand shall be inches ( mm) high. 2.0. Seismic Rated Floor Stand (Optional) The floor stand shall be seismic rated per IBC2009, and shall be attached to the unit frame (fieldinstalled). The floor stand shall also be capable of being anchored to the subfloor. 5 Liebert DSE

Guide Specifications 2. RETURN AIR PLENUM FOR DOWNFLOW UNITS The air plenum shall be constructed of 20 gauge steel, powder coated to match unit color. The plenum shall be " ( mm) high. A door shall be included in the front of the plenum to enable front filter access. Air shall enter the plenum from the top. 3.0 EXECUTION 3. INSTALLATION OF THERMAL MANAGEMENT UNITS The customer or the customer s representative shall be responsible for the following: 3.. General Install Thermal Management units in accordance with manufacturer's installation instructions. Install units plumb and level, firmly anchored in locations indicated and maintain manufacturer's recommended clearances. 3..2 Electrical Wiring Install and connect electrical devices furnished by manufacturer but not specified to be factorymounted. Furnish copy of manufacturer's electrical connection diagram submittal to electrical contractor. 3..3 Piping Connections Install and connect devices furnished by manufacturer but not specified to be factory-mounted. Furnish copy of manufacturer's piping connection diagram submittal to piping contractor. 3.2 FIELD QUALITY CONTROL Start cooling units in accordance with manufacturer's startup instructions. Test controls and demonstrate compliance with requirements. These specifications describe requirements for a computer room environmental control system. The system shall be designed to maintain temperature and humidity conditions in the rooms containing electronic equipment. The manufacturer shall design and furnish all equipment to be fully compatible with heat dissipation requirements. Liebert DSE 52

Guide Specifications NOTES 53 Liebert DSE

Liebert DSE 54 Guide Specifications

While every precaution has been taken to ensure the accuracy and completeness of this literature, Liebert Corporation assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions. 204 Liebert Corporation All rights reserved throughout the world. Specifications subject to change without notice. Liebert is a registered trademark of Liebert Corporation. All names referred to are trademarks or registered trademarks of their respective owners. SL-8934_REV_08-5 Technical Support / Service Web Site www.liebert.com Monitoring liebert.monitoring@emerson.com 800-222-5877 Outside North America: +00800 55 4499 Single-Phase UPS & Server Cabinets liebert.upstech@emerson.com 800-222-5877 Outside North America: +00800 55 4499 Three-Phase UPS & Power Systems 800-543-2378 Outside North America: 64-84-6598 Environmental Systems 800-543-2778 Outside the United States: 64-888-0246 Locations United States 050 Dearborn Drive P.O. Box 2986 Columbus, OH 43229 Europe Via Leonardo Da Vinci 8 Zona Industriale Tognana 35028 Piove Di Sacco (PD) Italy +39 049 979 Fax: +39 049 584 257 Asia 29/F, The Orient Square Building F. Ortigas Jr. Road, Ortigas Center Pasig City 605 Philippines +63 2 687 665 Fax: +63 2 730 9572 Emerson Network Power Liebert www.emerson.com www.emersonnetworkpower.com