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Emerson Liebert InteleCool 2 Operation & User’s Manual

  • Liebert InteleCool 2 Air Conditioner
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  • Operation & User’s Manual
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Emerson Liebert InteleCool 2 Manual Online:

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Emerson Liebert InteleCool 2 User Manual
Emerson Liebert InteleCool 2 User Guide
Emerson Liebert InteleCool 2 Online Manual

Text of Emerson Liebert InteleCool 2 User Guide:

  • Emerson Liebert InteleCool 2, Installation 6 2.4 Ducting Field-supplied ducting can be attached to the unit duct connection once the unit has been mounted to the outside wall. The total external static pressure for the duct, including grille, must not exceed the values shown in Table 5 and Table 6. Indoor discharge air rates are also given in the same tables. 2.5 Electrical Connections Each unit is shipped from the factory with all internal wiring completed. Refer to the electrical sche- matic when making connections. Electrical connections to be made at the installation site are: line voltage power supply to the power input and control wiring to remote control (customer supplied or Liebert option). DO NOT RUN C

  • Emerson Liebert InteleCool 2, Installation 5 Figure 1 Unit mounting dimensions 2.3 Piping Connections The 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. Table 1 Mounting dimensional data InteleCool 2 dimensional data in. (mm) Model Wf A B C D E F G H J K L M N P 1.5-2 Ton 38-3/4 (984) 20 (508) 20 (508) 9-3/8 (238) 9-13/32 (239) 8 (203) 20

  • Emerson Liebert InteleCool 2, Introduction 1 1.0 INTRODUCTION 1.1 General The Liebert InteleCool ® 2 Environmental Control System was designed for convenience and dependabil- ity 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 InteleCool2 ideally suited for maintaining an environment for sensitive electronic equipment. Standard units are NRTL-C listed/certified to meet U.S. and Canadian safety standards, and MEA listed for New York City applications. These agency listings ins

  • Emerson Liebert InteleCool 2, Ensuring The High Availability 0f Mission-Critical Data And Applications. Emerson Network Power, the global leader in enabling business-critical continuity, ensures network resiliency and adaptability through a family of technologies—including Liebert power and cooling technologies—that protect and support business-critical systems. Liebert solutions employ an adaptive architecture that responds to changes in criticality, density and capacity. Enterprises benefit from greater IT system availability, operational flexibility and reduced capital equipment and operating costs. While every precaution has been

  • Emerson Liebert InteleCool 2, Operation 12 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. If outdoor conditions are favorable on a call for cooling, the damper actuator will open the Economizer damper. The damper position

  • Emerson Liebert InteleCool 2, iii FIGURES Figure i Model number designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv Figure 1 Unit mounting dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 2 Low volt wiring terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 3 Mounting minimum position potentiometer on actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

  • Introduction 3 1.3.1 Refrigeration System Options Low Pressure Switch and Low Pressure Bypass Timer Low Pressure Switch: Used to protect the InteleCool2 if the evaporator blower fails, the air filter becomes clogged, the refrigeration circuit malfunctions or if there is loss of refrigerant. The low pres- sure switch is activated when the suction pressure drops below its cutout setting. When ac

  • Parts 39 Table 25 Motor parts, heater, Economizer, 4-ton units Figure No. Part Name/ Description Part # 4 Ton ET047N ET347N ET047M ET347M ET048P ET348P ET048Y ET348Y ET048A ET348A 200-230V 3Ph 50Hz 380-415V 3Ph 50Hz 208-230V 1Ph 60Hz 208-230V 3Ph 60Hz 460V 3Ph 60Hz Condenser fan motors Standard 7-1 Motor 1/3 Hp, 200/240V (std) 159266P1 1 1 1 7-1 Motor 1/3

  • Emerson Liebert InteleCool 2, Installation 8 2.6 Outside Air Damper - Optional Units supplied with fixed (non-modulating) outdoor air damper can be adjusted as follows: 1. Remove the screws from the middle panel and remove panel. 2. Loosen the damper plate screws on the backside of the middle panel. 3. Adjust the damper plate to the desired position and tighten damper plate screws. 4. Replace panels. 2.7 Economizer - Optional Installation Insert the top flanged edge of the Economizer hood into the Economizer opening on the unit front panel. Next, attach the bottom left and right corner of the hood with screws (supplied). Adjustment Units supplied with Economizer requiring outside air can be adjusted as

  • Emerson Liebert InteleCool 2, Maintenance 16 6.5.3 Thermostatic Expansion Valve The thermostatic expansion valve (TEV) keeps the evaporator supplied with enough refrigerant to satisfy load conditions. It does not turn the compressor on or off, but maintains proper refrigerant super heat in the suction gas to the compressor. Determine TEV operation by measuring superheat. If too little refrigerant is being fed to the evapora- tor, the superheat will be high; if too much refrigerant is being supplied, the superheat will be low. The correct superheat settin

  • Emerson Liebert InteleCool 2, Specifications 20 7.2 Technical Data Table 6 Technical data, 60 Hz Model ET018 ET024 ET036 Compressor type Hermetic Scroll Hermetic Scroll Hermetic 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) Total 20700 (6.07) 20000 (5.86) 24800 (7.27) 23400 (6.86) 36100 (10.58) 36200 (10.61) Sensible 17700 (5.19) 17500 (5.13) 19700 (5.77) 19100 (5.60) 27000 (7.91) 27000 (7.91) 95°F (35.0°C) Total 19300 (5.65) 19200 (5.63) 23200 (6.80) 22400 (6.56) 33800 (9.90) 34600 (10.14) Sensible 17200 (5.04) 17200 (5.04) 19100 (5.60) 18800 (5.51) 26100 (7.65) 26400 (7.74) 105°F (40.6°C) Tota

  • Emerson Liebert InteleCool 2, Operation 13 5.4 Unit Controls 5.4.1 Remote Control Interface Control connections to the InteleCool2 unit use customary HVAC terminal designations R, G, W & Y. Contact closures between the 24 VAC (R) and different control connections supply control voltage to the electric panel components responsible for the desired function. Operating modes are controlled by contact closures as follows: Wall-mounted thermostats are to be low voltage, snap action or mercury type. Un-manned sites should use a HEAT/COOL/AUTO type subbase to provide automatic switchover during climate changes. 5.4.2 High Pressure (Standard) The high pressure switch is mounted in the liquid line. Electrically, it i

  • Emerson Liebert InteleCool 2, Operation 11 5.0 OPERATION 5.1 Compressorized Cooling Compressorized cooling is provided by a high efficiency system consisting of a compressor, thermo- static expansion valve, evaporator, and condenser coil. The InteleCool2 uses R-22 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 trans- ferred to the refrigerant in the evaporator, the refrigerant boils and turns to a warm vapor. The refrigerant vapor enters the compressor and is compressed, resulting in high pressure and tempera- ture. After entering the condenser, the hot vapor

  • Emerson Liebert InteleCool 2, Start-Up Procedure 10 4.0 START-UP PROCEDURE Verify that installation is complete by using the Checklist for Complete Installation. 1. Disconnect all power to the 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. Voltage at T1 must be 24 VAC ±2.5V. 5. From the remote control, verify proper operation in all modes. 6. Make sure all blowers, fans, and the scroll comp

  • Emerson Liebert InteleCool 2, Specifications 26 Table 13 Electrical data, 50 Hz - amps Model Volts Phase No Heat 5 kW Heat 10 kW Heat 15 kW Heat* Circ1 Circ2 FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD ET017H 220/240 1 12.8 15.1 20 23.4 29.3 30 44.4 55.5 60 NA ET017S 220/240 1 13.8 16.3 25 23.4 29.3 30 44.4 55.5 60 NA ET023H 220/240 1 13.7 16.2 25 23.4 29.3 30 44.4 55.5 60 NA ET023S 220/240 1 15.2 18.1 30 23.4 29.3 30 44.4 55.5 60 NA ET023H 380/415 3 5.9 6.9 15 8.3 10.4 15 15.3 19.1 20 NA ET023S 380/415 3 6.3 7.4 15 8.3 10.4 15 15.3 19.1 20 NA ET035H 2

  • Specifications 23 Table 9 Technical data, 50 Hz, continued Model ET047, ET347 ET059, ET359 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) Tot al 12.22 (41700) 14.97 (51100) Sensible 9.73 (33200) 10.78 (36800) 35.0°C (95°F) Tot al 11.66 (39800) 14.36 (49000) Sensibl

  • Emerson Liebert InteleCool 2, Operation 14 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 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. On a call for cooling, when the discharge pressure increases to 250 PSIG (1723

  • Specifications 25 Table 12 Electrical data, 60 Hz - amps Model Volts Phase No Heat 5 kW Heat 10 kW Heat 15 kW Heat* Circ1 Circ2 FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD ET018H 208/230 1 13.4 15.8 25 23.4 29.3 30 44.4 55.5 60 NA ET018S 208/230 1 14.5 17.2 25 23.4 29.3 30 44.4 55.5 60 NA ET024H 208/230 1 14.7 17.4 25 23.4 29.3 30 44.4 55.5 60 NA ET024S 208/230 1 15.2 18.1 30 23.4

  • Emerson Liebert InteleCool 2, ii 6.5 Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.5.1 Refrigerant Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.5.2 Discharge Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.5.3 Thermostatic Expansion Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

  • Emerson Liebert InteleCool 2, Parts 34 Table 20 Electric panel parts, 3-ton units Figure No. Part Name / Description Part # 3 Ton ET035S ET035N ET035M ET036P ET036Y ET036A 220-240V 1Ph 50Hz 200-240V 3Ph 50Hz 380-415V 3Ph 50Hz 208-230V 1Ph 60Hz 208-230V 3Ph 60Hz 3 460V 3Ph 60Hz 11-3 Transformer 208/230V 159463P1 1 1 1 1 11-3 Transformer 360/460V 159463P2 1 1 Circuit breakers 11-1 No heat 138457P1 147957P5 147957P8 138457P8 147957P5 147957P8 11-1 5 kW heat 138457P1 147957P5 147957P8 138457P8 147957P5 147957P8 11-1 10 kW heat 138457P2 147957P10 147957P1 138457P2 147957P10 147957P1 11-1 15 kW heat 138457P2 147957P3 147957P2 138457P2 147957P3 147957P11 11-1A Heater breaker 138457P5 N/A N/A 138457P5 N/A N/A Circuit bre

  • Parts 38 Table 24 Motor parts, heater, Economizer, 3-ton units Figure No. Part Name/ Description Part # 3 Ton ET035S ET035N ET035M ET036P ET036Y ET036A 220-240V 1Ph 50Hz 200-240V 3Ph 50Hz 380-415V 3Ph 50Hz 208-230V 1Ph 60Hz 208-230V 3Ph 60Hz 3 460V 3Ph 60Hz Condenser fan motors Standard 7-1 Motor 1/8 Hp, 208/230V (std) 159206P1 1 1 1 1 7-1 Motor 1/8 Hp, 380/460V (std) 159206P2 1 1 7-2

  • Emerson Liebert InteleCool 2, Parts 30 Table 16 Refrigeration system parts, 3 ton units Figure No. Part Name / Description Part # 3 Ton ET035S ET035N ET035M ET036P ET036Y ET036A 220-240V 1Ph 50Hz 200-240V 3Ph 50Hz 380-415V 3Ph 50Hz 208-230V 1Ph 60Hz 208-230V 3Ph 60Hz 460V 3Ph 60Hz Run capacitor, recip comp 7-7 Cap. 40μF, 370V 1A19538P1 1 N/A N/A 1 N/A N/A Run capacitor, scroll comp 7-7 Cap. 40μF, 370V 1A19538P1 N/A N/A 1 N/A N/A 7-7 Cap. 50μF, 370V C15-0090 1 N/A N/A N/A N/A Compressors, reciprocating 7-5 Comp. 220/

  • Emerson Liebert InteleCool 2, Installation 7 Figure 2 Low volt wiring terminals Liebert Thermostat See 2.5.2 - Control Connections for further information, refer to the detailed instructions that ship with the thermostat. Dual Unit Control The InteleCool ® Dual Unit Control is designed to control two InteleCools in a “lead/lag” fashion. The control contains an electronic timer for switching the operating sequence of two units on a one-, two-, four-, or eight-day basis. It also contains a two-stage heat/two-stage cool thermosta

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