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Liebert nteleCool 2 User Manual

Outdoor wall-mount air conditioner, 1.5 - 5 tons, 50 & 60 hz
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Liebert InteleCool
User Manual - Outdoor Wall-Mount Air Conditioner, 1.5 - 5 Tons, 50 & 60 Hz
2
®
Precision Cooling
For Business-Critical Continuity™

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  Summary of Contents for Liebert nteleCool 2

  • Page 1 Precision Cooling For Business-Critical Continuity™ Liebert InteleCool ® User Manual - Outdoor Wall-Mount Air Conditioner, 1.5 - 5 Tons, 50 & 60 Hz...
  • Page 3: Table Of Contents

    TABLE OF CONTENTS ............1 NTRODUCTION General .
  • Page 4 ............15 AINTENANCE Filters .
  • Page 5 Liebert InteleCool2 dimensions, in. (mm) ........
  • Page 6: Figure I Model Number Designation

    Figure i Model number designation External Telecommunication Nominal Btuhs (1000) 0=Standard Supply & Return Openings 3=4 or 5 Ton Unit With 3 Ton 7 = Scroll Compressor Supply & Return Openings with POE oil, R-407C R = Right Compressor L = Left Compressor P = 208/230V –...
  • Page 7: Introduction

    Space Savings The Liebert InteleCool2 does not use any of the valuable floor space inside the secure space. Instead, it is mounted on the outside wall. No additional space is required outside or on a roof. Easy to Install The Liebert InteleCool2 is assembled, wired, piped, charged with refrigerant, and fully factory tested as a system to ensure trouble free installation and start-up.
  • Page 8: Optional Features

    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...
  • Page 9: Ancillary Components

    Tele2 Control This microprocessor-based controller controls two Liebert InteleCool2 units. The unit has a 10-key keypad, four-row by 20-column LCD, an RS-232 modem port, and an RS-232 terminal port. It allows up to eight customer-selectable, isolated normally open, dry contact alarm inputs. The Tele2 control requires either a THS28-30 or a THS28-60 sensor assembly.
  • Page 10: Installation

    2.1.2 Location Considerations The Liebert InteleCool2 unit is field-mounted on an outside wall. Additional framing in the wall may be required to ensure adequate structural support. The outdoor area near the condenser supply and discharge must also be considered. To assure ade- quate air supply, the unit should be mounted in a clean area, away from loose dirt and foreign matter that may clog the condenser coil.
  • Page 11: Piping Connections

    Openings 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 fac- tory-supplied and drains outdoors through the unit base pan. The condensate drain tubing should be...
  • Page 12: Ducting

    Make sure that the voltage supplied agrees with the voltage specified on the unit nameplate. The Liebert InteleCool2 comes standard with a factory-installed circuit breaker, accessible through an external access panel. An external, wall-mounted power disconnect switch (field-supplied) may be required for local codes.
  • Page 13: Figure 2 Low Volt Wiring Terminals

    If you have questions, call the thermostat manufacturer, Honeywell, at 800-468-1502. Dual Unit Control The Liebert InteleCool Dual Unit Control is designed to control two Liebert InteleCool units 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.
  • Page 14: Outside Air Damper - Optional

    Installation 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.
  • Page 15: Checklist For Complete Installation

    Checklist for Complete Installation HECKLIST FOR OMPLETE NSTALLATION ___ 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.
  • Page 16: Startup Procedure

    ROCEDURE 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 ±...
  • Page 17: Operation

    Compressorized cooling is provided by a high efficiency system consisting of a compressor, thermo- static 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.
  • Page 18: Economizer Cooling-Optional

    Operation 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.
  • Page 19: Unit Controls

    The high pressure switch is mounted in the liquid line. Electrically, it is connected in series with the compressor start circuit, which will shut down the compressor and condenser fan if the liquid pres- sure exceeds 400 PSIG (2758 kPa). This protects the Liebert InteleCool2 in the event of condenser motor failure or condenser coil blockage.
  • Page 20: Anti-Short Cycle Timer - Standard

    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).
  • Page 21: Aintenance

    Maintenance AINTENANCE WARNING Risk of electric shock. Can cause injury and death. Disconnect all local and remote electric power supplies before working within. 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.
  • Page 22: Discharge Pressure

    The correct superheat setting is between 10° and 20°F (5.5° and 11.1°C), under normal load condi- tions and “steady-state” operation. Some models of Liebert InteleCool2 will be supplied with a non- adjustable expansion valve, so no adjustments are possible.
  • Page 23: Compressor Replacement

    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.
  • Page 24: Table 4 Pressure Information

    Maintenance 4. Disconnect all electrical connections. 5. Remove failed compressor. NOTE The optional three-phase scroll compressor must rotate in the correct direction to ensure proper system operation. Wiring must be phased and connected as shown: • PHASE “A” to T1 or Ll •...
  • Page 25: Specifications

    36" (914mm) when mounted adjacent to another unit, for component access. For recommended minimum clearances, refer to 2.1.2 - Location Con- siderations. 2-1/4" (58mm) See Table 5 below for dimensions. Table 5 Liebert InteleCool2 dimensions, in. (mm) Dimensions, in. (mm) Model 37-1/8 17-3/4 38-3/4 9-3/8 9-13/32...
  • Page 26: Technical Data

    Specifications Technical Data Table 6 Technical data, 60 Hz - Standard ambient condenser Model ET018 ET024 ET036 Compressor type Scroll 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 19400 (5.7) 22300 (6.5) 34400 (10.1)
  • Page 27: Table 9 Table

    Specifications Table 7 Technical data, 60 Hz - Standard ambient condenser, 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 47900 (14.0) 56900 (16.7) 85°F (29.4°C)
  • Page 28: Table 11 Table

    Specifications Table 8 Technical data, 50 Hz - Standard ambient condenser Model ET017 ET023 ET035 Compressor type Scroll 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 Total 5.6 (19200) 6.3 (21500) 8.3 (28200) (85°F)
  • Page 29: Table 9 Technical Data, 50 Hz - Standard Ambient Condenser, Continued

    Specifications Table 9 Technical data, 50 Hz - Standard ambient condenser, 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 Total 11.8 (40400) 14.2 (48500) 29.4°C (85°F)
  • Page 30: Table 10 Technical Data, 60 Hz - High Ambient Condenser

    Specifications Table 10 Technical data, 60 Hz - High ambient condenser Model ET018 ET024 ET036 Compressor type Scroll 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 19600 (5.7) 22600 (6.6) 34400 (10.1) 85°F...
  • Page 31: Table 11 Technical Data, 60 Hz - High Ambient Condenser, Continued

    Specifications Table 11 Technical data, 60 Hz - High ambient condenser, 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 49200 (14.4) 59000 (17.3) 85°F (29.4°C)
  • Page 32: Table 12 Technical Data, 50 Hz - High Ambient Condenser

    Specifications Table 12 Technical data, 50 Hz - High ambient condenser Model ET017 ET023 ET035 Compressor type Scroll 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 Total 5.6 (19200) 6.4 (21900) 8.6 (29200) (85°F)
  • Page 33: Table 13 Technical Data, 50 Hz - High Ambient Condenser, Continued

    Specifications Table 13 Technical data, 50 Hz - High ambient condenser, 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 Total 12.1 (41400) 14.6 (50000) 29.4°C (85°F)
  • Page 34: Table 14 Optional Heater Capacity, 60 Hz

    Specifications Table 14 Optional heater capacity, 60 Hz Heater Capacity - kW Nominal Heater Rating 1.5 Ton 2 Ton 3 Ton 4 Ton 5 Ton 5 kW Capacity @ 208V-1ph 3.756 3.756 3.756 3.756 3.756 Capacity @ 230V-1ph 4.592 4.592 4.592 4.592 4.592...
  • Page 35: Table 16 Electrical Data, 60 Hz - Amps

    Specifications Table 16 Electrical data, 60 Hz - amps 15 kW Heat* No Heat 5 kW Heat 10 kW Heat Circ1 Circ2 Model Volts Phase FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD ET0187 208/230 14.5 17.2 23.4 29.3...
  • Page 36: Table 17 Electrical Data, 50 Hz - Amps

    Specifications Table 17 Electrical data, 50 Hz - amps 15 kW Heat* No Heat 5 kW Heat 10 kW Heat Circ1 Circ2 Model Volts Phase FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD ET0177 220/240 13.8 16.3 23.4 29.3...
  • Page 37: Troubleshooting

    Troubleshooting ROUBLESHOOTING Table 18 Troubleshooting guide Problem Probable Cause Remedy Unit will not start No power to unit Check voltage to input circuit breaker. Control voltage circuit Locate short and reset breaker. breaker open Shut off by external Check operation of thermostat. thermostat or stat is defective No cooling...
  • Page 38: Maintenance Inspection Checklist

    Maintenance Inspection Checklist AINTENANCE NSPECTION HECKLIST 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.
  • Page 39: Parts

    Parts 10.0 P ARTS Table 19 Refrigeration system parts, 1.5 and 2 ton units 1.5 Ton 2 Ton ET017S ET018P ET023S ET023M ET024P ET024Y ET024A Figure Part Name/ 220-240V 208-230V 220-240V 380-415V 208-230V 208-230V 460V Description Part # 1 Ph 50 Hz 1 Ph 60 Hz 1 Ph 50 Hz 3 Ph 50 Hz...
  • Page 40: Table 20 Refrigeration System Parts, 3 Ton Units

    Parts Table 20 Refrigeration system parts, 3 ton units 3 Ton ET035S ET035N ET035M ET036P ET036Y ET036A Figure Part Name / 220-240V 200-240V 380-415V 208-230V 208-230V 460V Description Part # 1 Ph 50 Hz 3 Ph 50 Hz 3 Ph 50 Hz 1 Ph 60 Hz 3 Ph 60 Hz 3 Ph 60 Hz...
  • Page 41: Table 21 Refrigeration System Parts, 4-Ton Units

    Parts Table 21 Refrigeration system parts, 4-ton units 4 Ton ET047N ET047M ET048P ET048Y ET048A ET347N ET347M ET348P ET348Y ET348A Figure Part Name/ 200-230V 380-415V 208-230V 208-230V 460V Description Part # 3 Ph 50 Hz 3 Ph 50 Hz 1 Ph 60 Hz 3 Ph 60 Hz 3 Ph 60 Hz Run capacitor, scroll comp...
  • Page 42: Table 22 Refrigeration System Parts, 5-Ton Units

    Parts Table 22 Refrigeration system parts, 5-ton units 5 Ton ET059N ET059M ET060P ET060Y ET060A ET359N ET359M ET360P ET360Y ET360Y Figure Part Name/ 200-230V 380-415V 208-230V 208-230V 460V Description Part # 3 Ph 50 Hz 3 Ph 50 Hz 1 Ph 60 Hz 3 Ph 60 3 Ph 60 Hz Run capacitor, scroll comp...
  • Page 43: Table 23 Electric Panel, 1.5- And 2-Ton Units

    Parts Table 23 Electric panel, 1.5- and 2-ton units 1.5 Ton 2 Ton ET017S ET018P ET023S ET023M ET024P ET024Y ET024A Figure Part Name / 220-240V 208-230V 220-240V 380-415V 208-230V 208-230V 460V Description Part # 1 Ph 50 Hz 1 Ph 60 Hz 1 Ph 50 Hz 3 Ph 50 Hz 1 Ph 60 Hz...
  • Page 44: Table 24 Electric Panel Parts, 3-Ton Units

    Parts Table 24 Electric panel parts, 3-ton units 3 Ton ET035S ET035N ET035M ET036P ET036Y ET036A Figure Part Name / 220-240V 200-240V 380-415V 208-230V 208-230V 460V Description Part # 1 Ph 50 Hz 3 Ph 50 Hz 3 Ph 50 Hz 1 Ph 60 Hz 3 Ph 60 Hz 3 3 Ph 60 Hz...
  • Page 45: Table 25 Electric Panel Parts, 4-Ton Unit

    Parts Table 25 Electric panel parts, 4-ton unit 4 Ton ET047N ET047M ET048P ET048Y ET048A ET347N ET347M ET348P ET348Y ET348A Figure Part Name / 200-230V 380-415V 208-230V 208-230V 460V Description Part # 3 Ph 50 Hz 3 Ph 50 Hz 1 Ph 60 Hz 3 Ph 60 Hz 3 Ph 60 Hz...
  • Page 46: Table 26 Electric Panel Parts, 5-Ton Unit

    Parts Table 26 Electric panel parts, 5-ton unit 5 Ton ET059N ET059M ET060P ET060Y ET060A ET359N ET359M ET360P ET360Y ET360Y Figure Part Name / 200-230V 380-415V 208-230V 208-230V 460V Description Part # 3 Ph 50 Hz 3 Ph 50 Hz 1 Ph 60 Hz 3 Ph 60 Hz 3 Ph 60 Hz...
  • Page 47: Table 27 Motor Parts, Heater, Economizer, 1.5- And 2-Ton Units

    Parts Table 27 Motor parts, heater, Economizer, 1.5- and 2-ton units 1.5 Ton 2 Ton ET017S ET018P ET023S ET023M ET024P ET024Y ET024A Figure Part Name/ 220-240V 208-230V 220-240V 380-415V 208-230V 208-230V 460V Description Part # 1 Ph 50 Hz 1 Ph 60 Hz 1 Ph 50 Hz 3 Ph 50 Hz 1 Ph 60 Hz...
  • Page 48: Table 28 Motor Parts, Heater, Economizer, 3-Ton Units

    Parts Table 28 Motor parts, heater, Economizer, 3-ton units 3 Ton ET035S ET035N ET035M ET036P ET036Y ET036A Figure Part Name/ 220-240V 200-240V 380-415V 208-230V 208-230V 460V Description Part # 1 Ph 50 Hz 3 Ph 50 Hz 3 Ph 50 Hz 1 Ph 60 Hz 3 Ph 60 Hz 3 3 Ph 60 Hz...
  • Page 49: Table 29 Motor Parts, Heater, Economizer, 4-Ton Units

    Parts Table 29 Motor parts, heater, Economizer, 4-ton units 4 Ton ET047N ET047M ET048P ET048Y ET048A ET347N ET347M ET348P ET348Y ET348A Figure Part Name/ 200-230V 380-415V 208-230V 208-230V 460V Description Part # 3 Ph 50 Hz 3 Ph 50 Hz 1 Ph 60 Hz 3 Ph 60 Hz 3 Ph 60 Hz...
  • Page 50: Table 30 Motor Parts, Heater, Economizer, 5-Ton Units

    Parts Table 30 Motor parts, heater, Economizer, 5-ton units 5 Ton ET059N ET059M ET060P ET060Y ET060A ET359N ET359M ET360P ET360Y ET360Y Figure Part Name/ 200-230V 380-415V 208-230V 208-230V 460V Description Part # 3 Ph 50 Hz 3 Ph 50 Hz 1 Ph 60 Hz 3 Ph 60 3 Ph 60 Hz...
  • Page 51: Figure 7 Condenser/Piping Assembly

    Parts Figure 7 Condenser/piping assembly Soft start device...
  • Page 52: Figure 8 Evaporator Blower

    Parts Figure 8 Evaporator blower 8 9 10 Figure 9 Evaporator coil and expansion valve TEV systems...
  • Page 53: Figure 10 Electric Panels

    Parts Figure 10 Electric panels 380/460V, 3 phase Evaporator “MF” 200/240V, 3 phase 200/240V, 1 phase...
  • Page 54: Figure 11 Heater Assembly

    Parts Figure 11 Heater assembly 5kW &10kW 15kW 5kW, 10kW & 15kW 5kW, 10kW & 15kW 208/230V, 1 phase 208/230V, 1 phase 208/230V, 3 phase 380/460V, 3 phase (Parallel) (Parallel) (Delta) (Wye) Connection Connection Connection Connection 159171G1 & G2, 159171G3 & G15 159171G4, G5 &G6 159171G7, G8, G10, G11&...
  • Page 55: Figure 12 Economizer Assembly

    Parts Figure 12 Economizer assembly Figure 13 Common alarm assembly...
  • Page 56: Figure 14 Soft Start Device

    Parts Figure 14 Soft start device To compressor capacitor...
  • Page 57 Parts Notes...
  • Page 58 Parts...
  • Page 60 +39 049 9719 111 Fax: +39 049 5841 257 While every precaution has been taken to ensure the accuracy and completeness of this literature, Liebert Corporation assumes no Asia responsibility and disclaims all liability for damages resulting from use of 7/F Dah Sing Financial Centre this information or for any errors or omissions.

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