Liebert® InteleCool®2 User Manual - Outdoor Wall-Mount Air Conditioner, 2 - 5 Tons, 50 & 60 Hz
TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 1.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Blower Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6.3 Economizer—Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6.4 Heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6.5 Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . .
FIGURES Figure i Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Model number designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv Unit mounting dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Low-volt wiring terminals . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure i Model number designation External Telecommunication Nominal Btuhs (1000) 0=Standard Supply & Return Openings 7 = Scroll Compressor with POE oil, R-407C R = Right Compressor L = Left Compressor P = 208/230V – 1 ph - 60 Hz S = 220/240 – 1 ph - 50 Hz A = 460V – 3 ph - 60 Hz Y = 208/230V – 3 ph - 60 Hz N = 200/230 – 3 ph - 50 Hz M = 380/415V – 3 ph - 50 Hz ET 0 36 7 R P F B T 0 = Standard F = Fixed Outside Air Damper E = Economizer 0 = No Heat A = 5 kW Heat B = 10 kW Heat C = 15 kW Heat T = Tan
Important Safety Instructions IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important safety instructions that should be followed during the installation and maintenance of the Liebert InteleCool2. Read this manual thoroughly before attempting to install or operate this unit. Only qualified personnel should move, install or service this equipment. Adhere to all warnings, cautions and installation, operating and safety instructions on the unit and in this manual.
Important Safety Instructions ! CAUTION Risk of sharp edges, splinters, and exposed fasteners. Can cause injury. Only properly trained and qualified personnel wearing appropriate safety headgear, gloves, shoes and glasses should attempt to move the unit, lift it, remove packaging or prepare the unit for installation. ! CAUTION Risk of contact with hot surfaces. Can cause injury. The compressors, fan motors, refrigerant discharge lines and reheats are extremely hot during unit operation.
Introduction 1.0 INTRODUCTION 1.1 General The Liebert InteleCool2 Thermal Management unit was designed for convenience and dependability in unmanned and remote locations typical of the telecommunications industry. Ease of installation, operation and service coupled with the use of high quality, high reliability components make the Liebert InteleCool2 ideally suited for maintaining an environment for sensitive electronic equipment. Standard units are NRTL-C listed/certified to meet U.S.
Introduction 1.3 Optional Features Compressor Location The standard compressor location is on the right when viewing the unit when it is mounted on the wall. The optional compressor location is on the left, to improve serviceability of the compressor when the unit is installed as one unit of a pair.
Introduction 1.3.1 Refrigeration System Options Low-Pressure Switch and Low-Pressure Bypass Timer Low-Pressure Switch: Used to protect the Liebert InteleCool2 if the evaporator blower fails, the air filter becomes clogged, the refrigeration circuit malfunctions or if there is loss of refrigerant. The low-pressure switch is activated when the suction pressure drops below its cutout setting. When activated, the low-pressure switch inhibits operation of the compressor and condenser fan.
Installation 2.0 INSTALLATION 2.1 Preparation 2.1.1 Room Preparation The room should be well-insulated and sealed to reduce airborne contaminants from penetrating the site. Outside air may be introduced through the damper option or be used for economized cooling by using the Economizer option. However, uncontrolled outside air should be kept to a minimum. Outside air adds to the cooling, heating and filtration loads of the site.
Installation ! WARNING Risk of improper handling of heavy unit—330-490 lb. (150-222kg). Can cause injury or death. Use caution, OSHA recommended safe lifting practices and lifting equipment that is rated for the unit weight to place the unit on the base angle. See Tables 6-13 for unit weights. 6. With the unit front panel removed, lift the unit onto the base angle, making certain that the rear unit angle falls behind the turned-up front edge of the mounting angle.
Installation 2.3 Piping Connections The Liebert InteleCool2 is a self-contained, packaged unit. All refrigerant piping connections are made at the factory, so no external condenser is required. The evaporator coil condensate drain is factory-supplied and drains outdoors through the unit base pan. The condensate drain tubing should be checked to be certain that it is placed through the hole provided in the base pan. 2.
Installation 2.5.2 Control Connections Control wiring will be required for the remote control device. This remote device may be a factory- or field-supplied wall thermostat or similar device. Connections to the unit are made using customary HVAC low-volt wiring terminals R, G, W, and Y. For detailed locations of the low-volt wiring terminals, refer to the Figure 10 - Electric panels. Figure 2 Low-volt wiring terminals Liebert Thermostat See 2.5.
Installation 2.6 Outside Air Damper—Optional Units supplied with a fixed (non-modulating) outdoor air damper can be adjusted as follows: 1. 2. 3. 4. 2.7 Remove the screws from the middle panel and remove panel. Loosen the damper plate screws on the backside of the middle panel. Adjust the damper plate to the desired position and tighten damper plate screws. Replace panels.
Checklist for Complete Installation 3.0 CHECKLIST FOR COMPLETE INSTALLATION ___ 1. Proper clearance for service access has been maintained. ___ 2. Equipment is level and mounting fasteners are tight. ___ 3. Ducting completed, if required. ___ 4. Line voltage to power wiring matches equipment nameplate. ___ 5. Power wiring connections completed to disconnect switches, including earth ground. Proper phase rotation has been observed so that scroll compressor will rotate in the correct direction. ___ 6.
Startup Procedure 4.0 STARTUP PROCEDURE Verify that installation is complete by using the Checklist for Complete Installation. 1. Disconnect all power to the Liebert InteleCool2 unit. 2. Adjust remote control to prevent compressor, heat and fan operation. 3. Turn on main breaker and check line voltage on main unit disconnect switch. Line voltage must be within ± 10 volts of nameplate voltage. 4. Turn ON main unit disconnect switch and check secondary voltage at transformer T1.
Operation 5.0 OPERATION 5.1 Compressorized Cooling Compressorized cooling is provided by a high-efficiency system consisting of a compressor, thermostatic expansion valve, evaporator, and condenser coil. The Liebert InteleCool2 uses R-407C refrigerant in a conventional vapor-compression refrigeration cycle. Heat is removed from the air in the space by blowing the air across the evaporator coil. As heat is transferred to the refrigerant in the evaporator, the refrigerant boils and turns to a warm vapor.
Operation 5.2 Economizer Cooling—Optional The Economizer mode uses outside air to cool the room when the outside air temperature is cool enough to allow for economical cooling. Components include the damper, spring return direct drive actuator, enthalpy sensor and actuator control board with an integral mixed air sensor. Economizer operation is enabled when the outside conditions meet required temperature and humidity as set on the enthalpy sensor.
Operation 5.4 Unit Controls 5.4.1 Remote Control Interface Control connections to the Liebert InteleCool2 unit use customary HVAC terminal designations R, G, W and Y. Contact closures between the 24VAC (R) and different control connections supply control voltage to the electric panel components responsible for the desired function.
Operation T-Pack1 Package Includes a low-pressure switch, low-pressure bypass timer (described above) and fan cycle control. Fan Cycle Control—Condenser Fan Cycling Control; allows the Liebert InteleCool2 unit to provide cooling to the space when the outdoor ambient temperature is lower than 50°F (10°C) and down to -20°F (-28.9°C). The control uses a reverse acting pressure switch mounted on the discharge line that cycles the condenser fan in response to the discharge pressure.
Maintenance 6.0 MAINTENANCE ! WARNING Risk of electric shock. Can cause injury and death. Open all local and remote electric power supply disconnect switches and verify with a voltmeter that power is Off before working within the electrical connection enclosures. Potentially lethal voltages exist within this equipment during operation. Observe all cautions and warnings in this manual. Only qualified service and maintenance personnel should work with this equipment. 6.
Maintenance 6.5.1 Refrigerant Lines Check all refrigerant lines and capillaries for vibration isolation, and support as necessary. Visually inspect all refrigerant lines for leaks. 6.5.2 Discharge Pressure Discharge pressure can be increased or decreased by load conditions or condenser efficiency. The high-pressure switch will shut the compressor/contactor at its cut-out setting of 400 PSIG (2758 kPa). See 5.4.2 High Pressure (Standard). 6.5.
Maintenance Mechanical Failure A mechanical compressor failure will not be indicated by a burned odor. The motor will attempt to run. If you have determined that a mechanical failure has occurred, the compressor must be replaced. Electrical Failure An electrical failure will be indicated by a distinct, pungent odor. If a severe burnout has occurred, the oil will be black and acidic.
Maintenance 6.6.1 Compressor Replacement Replacement compressors are available from your Emerson® supplier. They will be shipped in a reusable crate to the job site as required by the service contractor. Upon shipping a replacement compressor, the service contractor will be billed in full for the compressor until the failed compressor has been returned to the factory. The compressor should be returned in the same container used for shipping to the job.
Maintenance Table 4 Pressure information Design Pressures psig (kPA) Suction Minimum psig (kPa) R-407C 35 (241) Liquid (Approx.) 95°F (35°C) Ambient Maximum High-Pressure Cutout Maximum psig (kPa) R-407C 90 (620) PSIG (kPa) 250-290 (1723-2000) 360-380 (2480-2618) 400 (2756) Based on indoor conditions of 80°F (26.7°C), 50% RH, with clean filter(s).
Specifications 7.0 SPECIFICATIONS 7.1 Dimensional Data Figure 6 Dimensional data Ws 2-1/4" (58mm) J Entrance for high volt connections 4" (102mm) Wu A supply E F K 1-11/16" (43mm) C Entrance for low volt connections G B return H L Shaded areas indicate a recommended clearance of 34" (864mm) in front and 30" (762mm) each side, or 36" (914mm) when mounted adjacent to another unit, for component access. For recommended minimum clearances, refer to 2.1.2 Location Considerations.
Specifications 7.2 Technical Data Table 6 Technical data, 60 Hz - Standard ambient condenser Model ET024 ET036 Compressor type Scroll Scroll Net capacity data based on 80°F (26.6°C) DB/67°F (19.4°C) WB indoor ambient - BTUH (kW)* Outdoor ambient 85°F (29.4°C) 95°F (35.0°C) 105°F (40.6°C) ** Total 22300 (6.5) 34400 (10.1) Sensible 17200 (5.0) 24300 (7.1) Total 21400 (6.3) 32900 (9.6) Sensible 16900 (5.0) 23800 (6.9) Total 20400 (6.0) 31300 (9.1) Sensible 16600 (4.9) 23100 (6.
Specifications Table 7 Technical data, 60 Hz - Standard ambient condenser, continued Model ET048 ET060 Compressor Type Scroll Scroll Net capacity data based on 80°F (26.6°C) DB/67°F (19.4°C) WB indoor ambient - BTUH (kW)* Outdoor ambient 85°F (29.4°C) 95°F (35.0°C) 105°F (40.6°C) ** Total 47900 (14.0) 56900 (16.7) Sensible 35400 (10.4) 38800 (11.4) Total 45600 (13.4) 53800 (15.8) Sensible 34600 (10.2) 37700 (11.1) Total 43100 (12.6) 50700 (14.9) Sensible 33800 (9.9) 36800 (10.
Specifications Table 8 Technical data, 50 Hz - Standard ambient condenser Model ET035 Compressor type Scroll Net capacity data based on 26.6°C (80°F) DB/19.4°C (67°F) WB indoor ambient - kW (BTUH)* Outdoor ambient 29.4°C (85°F) 35.0°C (95°F) 40.6°C (105°F) ** Total 8.3 (28200) Sensible 6.2 (21300) Total 7.8 (26600) Sensible 6.1 (20700) Total 7.3 (24900) Sensible 5.9 (20000) Net capacity data based on 23.9°C (75°F) DB 16.9°C (62.5°F) WB indoor ambient - kW (BTUH)* Outdoor ambient 29.
Specifications Table 9 Technical data, 50 Hz - Standard ambient condenser, continued Model ET047 ET059 Compressor type Scroll Scroll Net capacity data based on 26.6°C (80°F) DB/19.4°C (67°F) WB indoor ambient - kW (BTUH)* Outdoor ambient 29.4°C (85°F) 35.0°C (95°F) 40.6°C (105°F) ** Total 11.8 (40400) 14.2 (48500) Sensible 8.7 (29900) 9.6 (33100) Total 11.2 (38300) 13.6 (46600) Sensible 8.6 (29300) 9.5 (32400) Total 10.6 (36200) 12.9 (44400) Sensible 8.4 (28600) 9.
Specifications Table 10 Technical data, 60 Hz - High ambient condenser Model ET024 ET036 Compressor type Scroll Scroll Net capacity data based on 80°F (26.6°C) DB/67°F (19.4°C) WB indoor ambient - BTUH (kW)* Outdoor ambient 85°F (29.4°C) 95°F (35.0°C) 105°F (40.6°C) Total 22600 (6.6) 34400 (10.1) Sensible 17200 (5.0) 24400 (7.2) Total 21700 (6.4) 32900 (9.6) Sensible 16900 (5.0) 23800 (6.9) Total 20700 (6.1) 31300 (9.1) Sensible 16600 (4.9) 23100 (6.
Specifications Table 11 Technical data, 60 Hz - High ambient condenser, continued Model ET048 ET060 Compressor Type Scroll Scroll Net capacity data based on 80°F (26.6°C) DB/67°F (19.4°C) WB indoor ambient - BTUH (kW)* Outdoor ambient 85°F (29.4°C) 95°F (35.0°C) 105°F (40.6°C) Total 49200 (14.4) 59000 (17.3) Sensible 35800 (10.5) 39600 (11.6) Total 46900 (13.8) 55900 (16.4) Sensible 35000 (10.3) 38400 (11.3) Total 44400 (13.0) 52700 (15.5) Sensible 34100 (10.0) 37100 (10.
Specifications Table 12 Technical data, 50 Hz - High ambient condenser Model ET035 Compressor type Scroll Net capacity data based on 26.6°C (80°F) DB/19.4°C (67°F) WB indoor ambient - kW (BTUH)* Outdoor ambient 29.4°C (85°F) 35.0°C (95°F) 40.6°C (105°F) Total 8.6 (29200) Sensible 6.3 (21600) Total 8.1 (27700) Sensible 6.2 (21100) Total 7.6 (26000) Sensible 6.0 (20500) Net capacity data based on 23.9°C (75°F) DB 16.9°C (62.5°F) WB indoor ambient - kW (BTUH)* Outdoor ambient 29.
Specifications Table 13 Technical data, 50 Hz - High ambient condenser, continued Model ET0477 ET059 Compressor type Scroll Scroll Net capacity data based on 26.6°C (80°F) DB/19.4°C (67°F) WB indoor ambient - kW (BTUH)* Outdoor ambient 29.4°C (85°F) 35.0°C (95°F) 40.6°C (105°F) Total 12.1 (41400) 14.6 (50000) Sensible 8.8 (30000) 9.7 (33200) Total 11.5 (39500) 13.8 (47400) Sensible 8.6 (29300) 9.5 (32400) Total 10.9 (37400) 13.1 (44700) Sensible 8.4 (28600) 9.
Specifications Table 14 Optional heater capacity, 60 Hz Heater Capacity - kW Nominal Heater Rating 2 Ton 3 Ton 4 Ton 5 Ton Capacity @ 208V-1ph 3.756 3.756 3.756 3.756 Capacity @ 230V-1ph 4.592 4.592 4.592 4.592 Capacity @ 240V-1ph 5.000 5.000 5.000 5.000 Capacity @ 208V-3ph 3.756 3.756 3.756 3.756 Capacity @ 230V-3ph 4.592 4.592 4.592 4.592 Capacity @ 240V-3ph 5.000 5.000 5.000 5.000 Capacity @ 460V-3ph 4.592 4.592 4.592 4.592 Capacity @ 480V-3ph 5.000 5.000 5.
Specifications Table 15 Optional heater capacity, 50 Hz Heater Capacity - kW Nominal Heater Rating 3 Ton 4 Ton 5 Ton Capacity @ 220V-1ph 4.201 4.201 4.201 Capacity @ 240V-1ph 5.000 5.000 5.000 Capacity @ 200V-3ph 3.472 3.472 3.472 Capacity @ 230V-3ph 4.592 4.592 4.592 Capacity @ 240V-3ph 5.000 5.000 5.000 Capacity @ 380V-3ph 4.192 4.192 4.192 Capacity @ 415V-3ph 5.000 5.000 5.000 Capacity @ 220V-1ph 8.403 8.403 8.403 Capacity @ 240V-1ph 10.000 10.000 10.
Specifications Table 16 Electrical data, 60 Hz - amps 15 kW Heat* No Heat Model Volts 5 kW Heat 10 kW Heat Circ1 Circ2 Phase FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD ET0187 208/230 1 14.5 17.2 25 23.4 29.3 30 44.4 55.5 60 NA — — — — — ET0247 208/230 1 15.2 18.1 30 23.4 29.3 30 44.4 55.5 60 NA — — — — — ET0247 208/230 3 12.4 14.6 20 14.4 18 20 26.4 35 NA — — — — — — ET0247 460 33 3 5.9 6.9 15 7.3 9.1 15 13.3 16.
Troubleshooting 8.0 TROUBLESHOOTING Table 18 Troubleshooting guide Problem Unit will not start No cooling Unit cycles on high pressure switch Heat does not operate Liebert® InteleCool™2 Probable Cause Remedy No power to unit Check voltage to input circuit breaker. Control voltage circuit breaker open Locate short and reset breaker. Shut off by external thermostat or stat is defective Check operation of thermostat. Low refrigerant charge Check with gauges.
Maintenance Inspection Checklist 9.0 MAINTENANCE INSPECTION CHECKLIST Date:__________________________ Prepared by:___________________________________ Model #:________________________ Serial #: ______________________________________ Monthly Filters ___ 1. Unrestricted air flow ___ 2. Check filter ___ 3. Wipe section clean Fan Section ___ 1. Impellers free of debris ___ 2. Bearings free Economizer ___ 1. Check damper for tightness and wear Semiannually Compressor Section ___ 1. Check for leaks ___ 2.
Parts 10.0 PARTS Table 19 Refrigeration system parts, 1.5 and 2 ton units 1.5 Ton ET017S Figure No. Part Name/ Description Part # 2 Ton ET018P ET023S ET023M ET024P ET024Y ET024A 220-240V 208-230V 220-240V 380-415V 208-230V 208-230V 460V 1 Ph 50 Hz 1 Ph 60 Hz 1 Ph 50 Hz 3 Ph 50 Hz 1 Ph 60 Hz 3 Ph 60 Hz 3 Ph 60 Hz Run capacitor, scroll compressor 7-7 Cap. 30μF, 370V 1A19537P1 1 7-7 Cap. 40μF, 370V 1A19538P1 1 1 N/A 1 N/A 1 N/A N/A N/A N/A Compressors, scroll 7-6 Comp.
Parts Table 20 Refrigeration system parts, 3 ton units 3 Ton ET035S Figure No. Part Name / Description Part # ET035N ET035M ET036P 220-240V 200-240V 380-415V 208-230V 1 Ph 50 Hz 3 Ph 50 Hz 3 Ph 50 Hz 1 Ph 60 Hz ET036Y ET036A 208-230V 3 Ph 60 Hz 460V 3 Ph 60 Hz Compressors, scroll 7-6 Comp. 220/240-1 148221P2 7-6 Comp. 208/230-3 148325P1 7-6 Comp. 380/460-3 148325P2 7-6 Comp.
Parts Table 21 Refrigeration system parts, 4-ton units 4 Ton Figure No. Part Name/ Description Part # ET047N ET347N ET047M ET347M ET048P ET348P ET048Y ET348Y ET048A ET348A 200-230V 3 Ph 50 Hz 380-415V 3 Ph 50 Hz 208-230V 1 Ph 60 Hz 208-230V 3 Ph 60 Hz 460V 3 Ph 60 Hz N/A N/A 1 N/A N/A Run capacitor, scroll compressor 7-7 Cap. 40μF, 370V 1A19538P1 Compressors, scroll 7-6 Comp. 208/230-3 159153P1 7-6 Comp. 380/460-3 159153P2 7-6 Comp.
Parts Table 22 Refrigeration system parts, 5-ton units 5 Ton Figure No. Part Name/ Description ET059N ET359N ET059M ET359M ET060P ET360P ET060Y ET360Y ET060A ET360Y 200-230V 3 Ph 50 Hz 380-415V 3 Ph 50 Hz 208-230V 1 Ph 60 Hz 208-230V 3 Ph 60 460V 3 Ph 60 Hz E13-2430 N/A N/A 1 N/A N/A 1 Part # Run capacitor, scroll compressor 7-7 Cap. 60μF, 370V Compressors, scroll 7-6 Comp. 200/240-3 132101P2 7-6 Comp. 380/460-3 132101P3 7-6 Comp.
Parts Table 23 Electric panel, 1.5- and 2-ton units 1.5 Ton ET017S Figure No.
Parts Table 24 Electric panel parts, 3-ton units 3 Ton Figure No.
Parts Table 25 Electric panel parts, 4-ton unit 4 Ton Figure No.
Parts Table 26 Electric panel parts, 5-ton unit 5 Ton Figure No.
Parts Table 27 Motor parts, heater, Economizer, 1.5- and 2-ton units 1.5 Ton ET017S Figure No.
Parts Table 28 Motor parts, heater, Economizer, 3-ton units 3 Ton ET035S Figure No.
Parts Table 29 Motor parts, heater, Economizer, 4-ton units 4 Ton Figure No.
Parts Table 30 Motor parts, heater, Economizer, 5-ton units 5 Ton Figure No.
Parts Figure 7 Condenser/piping assembly Soft start device 10 7 8 2 4 1 9 6 Liebert® InteleCool™2 48
Parts Figure 8 Evaporator blower 12 3 2 Figure 9 4 7 5 6 11 8 9 10 1 Evaporator coil and expansion valve 1 2 TEV systems 49 Liebert® InteleCool™2
Parts Figure 10 Electric panels 11 31 3 8 12 15 380/460V, 3 phase 4 1 13 31 3 6 Evaporator “MF” 10 11 7 16 13 8 12 6 200/240V, 3 phase 4 1 10 11 3 13 31 8 12 6 9 15 200/240V, 1 phase 1A 1 10 Liebert® InteleCool™2 4 50
Parts Figure 11 Heater assembly 5kW &10kW 208/230V, 1 phase (Parallel) Connection 15kW 208/230V, 1 phase (Parallel) Connection 5kW, 10kW & 15kW 208/230V, 3 phase (Delta) Connection 159171G1 & G2, G13 & G14 159171G3 & G15 159171G4, G5 &G6 G16, G17 & G18 5kW, 10kW & 15kW 380/460V, 3 phase (Wye) Connection 159171G7, G8, G10, G11& G12 G19, G20, G21, G22, G23& G24 1 51 Liebert® InteleCool™2
Parts Figure 12 Economizer assembly 4 7 1 2 6 5 3 Figure 13 Common alarm assembly 2 3 5 4 Liebert® InteleCool™2 1 52
Parts Figure 14 Soft start device To compressor capacitor 1 53 Liebert® InteleCool™2
Technical Support / Service Web Site www.liebert.com Monitoring liebert.monitoring@emerson.com 800-222-5877 Outside North America: +00800 1155 4499 Single-Phase UPS & Server Cabinets liebert.upstech@emerson.
