Precision Cooling For Business-Critical Continuity Liebert InteleCool2™ User Manual - Outdoor Wall-Mount Air Conditioner,1.
TABLE OF CONTENTS 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.3 Optional Features. . . . . . . . . . . . . . . . . . . .
6.5 Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.5.1 6.5.2 6.5.3 6.5.4 6.6 Refrigerant Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Discharge Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thermostatic Expansion Valve . . . . . . . . . . . . . . . . . . .
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 Figure 15 Model number designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv Unit mounting dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Low volt wiring terminals . . . . . . . . . . . . . . . . . . . . . .
Figure i Model number designation External Telecommunication Nominal Btuhs (1000) 0=Standard Supply & Return Openings 3=4 or 5 Ton Unit With 3 Ton Supply & Return Openings H = Hermetic Compressor S = Scroll Compressor R = Right Compressor L = Left Compressor P = 208/230V – 1 ph - 60 hz S = 220/240 – 1 ph - 60 hz A = 460V – 3 ph - 60 hz Y = 208/230V – 3 ph - 60 hz N = 200/230 – 3 ph - 50 hz M = 380/415V – 3ph - 50 hz ET 0 36 H R P F B T 0 = Standard F = Fixed Outside Air Damper E = Economizer 0 = No
Introduction 1.0 INTRODUCTION 1.1 General The Liebert InteleCool®2 Environmental Control System 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 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 4 or 5 Ton Unit With 3 Ton Openings The 4 or 5 ton units with 3 ton supply and return openings are designed to replace 3 ton wall mounted air conditioners using existing wall openings. The economizer/fresh air option is not available. Return filter is located in the return air grille and must be selected from accessory equipment. Scroll Compressor—Optional on 1.
Introduction 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 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 should be 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 Figure 1 Unit mounting dimensions 11" (279mm) 11" (279mm) 11" (279mm) P J E K C A F K K G B K D H See Table 1 below for keys to dimensions. K L M ref. Table 1 N Wf Mounting dimensional data InteleCool 2 dimensional data in. (mm) Model Wf A B C D E F G 1.
Installation 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 ! WARNING ! CAUTION Use voltmeter to make sure power is turned off before making any electrical connections.
Installation 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. NOTE This control contains mercury in a sealed tube. Do not place control in the trash at the end of is useful life. If this control is replacing a control that contains mercury in a sealed tube, do not place your old control in the trash.
Installation 2.6 Outside Air Damper - Optional Units supplied with 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.
Start-Up Procedure 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.
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 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 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 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.
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 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 ! 6.1 WARNING Potentially lethal voltages exist within this equipment during operation. Observe all cautions and warnings in this manual. Failure to do so could result in serious injury or death. Only qualified service and maintenance personnel should work with this equipment. Filters Replaceable evaporator air filter(s) are supplied with the unit. The filter(s) are easily serviceable from the outside, through the top front access panel.
Maintenance 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 evaporator, the superheat will be high; if too much refrigerant is being supplied, the superheat will be low.
Maintenance 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. If a burnout does occur, correct the problem that caused the burnout and clean the system thoroughly using the proper procedure. It is important to note that successive burnouts of the same system are usually caused by improper cleaning.
Maintenance 9. Connect a vacuum pump to both the high and low sides of the system through properly sized connections. Evacuate the system twice to 1500 microns, and the third time to 500 microns. Break the vacuum each time with dry nitrogen to 2 PSIG (13.8 kPa). 10. Charge the system with refrigerant. Refer to unit serial tag for refrigerant charge amount. 11. Apply power and operate system. Check for proper operation. Suction and discharge pressures will vary with load conditions and coil efficiency.
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 Model ET018 Compressor type Hermetic ET024 Scroll Hermetic ET036 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 Total 85°F (29.4°C) Sensible 95°F (35.0°C) 105°F (40.6°C) 115°F (46.1°C)** 20700 (6.07) 20000 (5.86) 24800 (7.27) 23400 (6.86) 36100 (10.58) 36200 (10.61) 17700 (5.19) 17500 (5.13) 19700 (5.77) 19100 (5.60) 27000 (7.91) 27000 (7.
Specifications Table 7 Technical data, 60 Hz, continued Model ET048, ET348 ET060, ET360 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 Total 49100 (14.39) 58500 (17.14) Sensible 39300 (11.51) 42800 (12.54) Total 46900 (13.74) 56000 (16.41) Sensible 38400 (11.25) 41900 (12.28) 105°F (40.6°C) Total 44500 (13.04) 53400 (15.65) Sensible 37600 (11.02) 40900 (11.98) 115°F (46.
Specifications Table 8 Technical data, 50 Hz Model ET017 Compressor type Hermetic ET023 Scroll Hermetic ET035 Scroll Hermetic 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) 46.1°C (115°F**) Total 5.19 (17700) 5.92 (20200) 6.21 (21200) 6.62 (22600) 8.97 (30600) 8.53 (29100) Sensible 4.45 (15200) 4.72 (16100) 4.98 (17000) 5.13 (17500) 6.74 (23000) 6.56 (22400) Total 4.83 (16500) 5.
Specifications 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) Total Sensible 9.73 (33200) 10.78 (36800) 35.0°C (95°F) Total 11.66 (39800) 14.36 (49000) Sensible 9.52 (32500) 10.55 (36000) 40.6°C (105°F) Total 11.05 (37700) 13.68 (46700) Sensible 9.32 (31800) 10.28 (35100) 46.1°C (115°F)** Total 10.
Specifications Table 10 Optional heater capacity, 60 Hz Nominal Heater Rating 5 kW Capacity @ 208V-1ph Capacity @ 230V-1ph Capacity @ 240V-1ph Capacity @ 208V-3ph Capacity @ 230V-3ph Capacity @ 240V-3ph Capacity @ 460V-3ph Capacity @ 480V-3ph 10 kW Capacity @ 208V-1ph Capacity @ 230V-1ph Capacity @ 240V-1ph Capacity @ 208V-3ph Capacity @ 230V-3ph Capacity @ 240V-3ph Capacity @ 460V-3ph Capacity @ 480V-3ph 15 kW Capacity @ 208V-1ph Capacity @ 230V-1ph Capacity @ 240V-1ph Capacity @ 208V-3ph Capacity @ 230
Specifications Table 12 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 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 29.3 30 44.4 55.5 60 NA ET024H 208/230 3 11.3 13.2 20 14.
Specifications Table 13 Electrical data, 50 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 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.
Troubleshooting 8.0 TROUBLESHOOTING Table 14 Troubleshooting guide Problem Unit will not start No cooling Unit cycles on high pressure switch Heat does not operate 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 Liebert InteleCool2 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.
Parts 10.0 PARTS Table 15 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, recip comp 7-7 Cap. 25μF, 370V C03-005A 7-7 Cap.
Parts Table 16 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 Run capacitor, recip comp 7-7 Cap. 40μF, 370V 1A19538P1 1 N/A N/A 1 N/A N/A N/A N/A 1 N/A N/A N/A N/A N/A N/A Run capacitor, scroll comp 7-7 Cap. 40μF, 370V 1A19538P1 7-7 Cap.
Parts Table 17 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 comp 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 18 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 comp 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 19 Electric panel, 1.5- and 2-ton units 1.5 Ton ET017S Figure No.
Parts Table 20 Electric panel parts, 3-ton units 3 Ton Figure No.
Parts Table 21 Electric panel parts, 4-ton unit 4 Ton Figure No.
Parts Table 22 Electric panel parts, 5-ton unit 5 Ton Figure No.
Parts Table 23 Motor parts, heater, Economizer, 1.5- and 2-ton units 1.5 Ton ET017S Figure No.
Parts Table 24 Motor parts, heater, Economizer, 3-ton units 3 Ton ET035S Figure No.
Parts Table 25 Motor parts, heater, Economizer, 4-ton units 4 Ton Figure No.
Parts Table 26 Motor parts, heater, Economizer, 5-ton units 5 Ton Figure No.
Parts Figure 7 Condenser/piping assembly 10 7 3 2 4 1 8 9 6 5 Figure 8 Crankcase heater (reciprocating compressor only) Compressor 2 1 Crankcase heater cartridge Retainer 41
Parts Figure 9 Evaporator blower 12 3 2 4 7 5 6 11 8 9 10 1 Figure 10 Evaporator coil and expansion valve 1 2 TEV systems 42
Parts Figure 11 Electric panels 11 8 31 3 6 12 380/460V, 3 phase Evaporator “MF” 1 13 31 3 15 4 10 11 7 16 13 8 12 6 200/240V, 3 phase 4 1 10 11 3 13 31 8 12 6 15 9 4 200/240V, 1 phase 1A 1 10 43
Parts Figure 12 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 44
Parts Figure 13 Economizer assembly 4 7 1 2 6 5 3 Figure 14 Common alarm assembly 2 3 5 4 1 45
Parts Figure 15 Soft start device To compressor capacitor 1 46
Parts Notes 47
Parts 48
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.
