Emerson 2 - Manuals - manualsarea.com

Page 3 - TABLE OF CONTENTS

i TABLE OF CONTENTS 1.0 I NTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 4 - ii

ii 6.5 Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.5.1 Refrigerant Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.5.2 Disc...

Page 5 - iii; FIGURES

iii FIGURES Figure i Model number designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv Figure 1 Unit mounting dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 6 - iv

iv Figure i Model number designation ET 0 36 H R P F B T External Telecommunication Nominal Btuhs (1000) H = Hermetic CompressorS = Scroll Compressor P = 208/230V – 1 ph - 60 hzS = 220/240 – 1 ph - 60 hzA = 460V – 3 ph - 60 hzY = 208/230V – 3 ph - 60 hzN = 200/230 – 3 ph - 50 hzM = 380/415V – 3ph - ...

Page 7 - Introduction; NTRODUCTION; General; The Liebert InteleCool; Standard Features

Introduction 1 1.0 I NTRODUCTION 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 ...

Page 8 - Optional Features; the unit is installed as one unit of a pair.

Introduction 2 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 ...

Page 9 - Low Pressure Bypass Timer:; Also known as the Condenser Low Ambient Control or Winter Start; Ancillary Components

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 ...

Page 10 - Installation; NSTALLATION; Preparation; Figure 1; WARNING

Installation 4 2.0 I NSTALLATION 2.1 Preparation 2.1.1 Room Preparation The room should be well-insulated and should be sealed to reduce airborne contaminants from pene- trating the site. Outside air may be introduced through the damper option or be used for economized cooling by using the Economize...

Page 11 - Piping Connections; certain that it is placed through the hole provided in the base pan.; Table 1; See Table 1 below for

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 t...

Page 12 - Ducting; Table 5; Electrical Connections; DO NOT RUN CONTROL WIRING WITH HIGH VOLTAGE!

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 ar...

Page 13 - Figure 2; Liebert Thermostat; See; Dual Unit Control; The InteleCool; containing mercury in a sealed tube.; containing mercury in a sealed tube.

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” ...

Page 14 - Outside Air Damper - Optional; T and T1 are; Figure 3; Push onto

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 th...

Page 15 - Checklist for Complete Installation; HECKLIST

Checklist for Complete Installation 9 3.0 C HECKLIST FOR C OMPLETE I 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 namep...

Page 16 - Verify that installation is complete by using the; be within ± 10 volts of nameplate voltage.; applied between four and six hours before start-up.

Start-Up Procedure 10 4.0 S TART -U P P ROCEDURE 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 volta...

Page 17 - Operation; PERATION; Compressorized Cooling; Figure 4

Operation 11 5.0 O PERATION 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 cy...

Page 18 - Economizer Cooling - Optional; down the compressor and begin using outside air.; Figure 5; gizes the evaporator fan and resistive elements.

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...

Page 19 - Unit Controls; contact closures as follows:; Low Pressure Switch and Low Pressure Bypass Timer (Winter Start); Low Pressure Switch—; A low ambient temperature start relay is included with the low; Table 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 respon...

Page 20 - Fan Cycle Control; pressure that will allow the system to function.

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)...

Page 21 - Maintenance; AINTENANCE; Filters; damper blade and enthalpy sensor.; Heat; inspect all refrigerant lines for leaks.; Power must be OFF while replacing the filter.; POWER MUST BE OFF WHILE INSPECTING THE BLOWER EQUIPMENT.; Power must be OFF while working on heaters.

Maintenance 15 6.0 M AINTENANCE 6.1 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.Filters are usually the most neglected item in an environmental control system. To maintain efficient...

Page 22 - Compressor; Mechanical Failure; for the new balance to take place.

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.Deter...

Page 23 - Electrical Failure; outs of the same system are usually caused by improper cleaning.; Use long rubber gloves when handling contaminated parts.; CAUTION; both sides of the compressor.; CAUTION

Maintenance 17 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. I...

Page 24 - components and can result in compressor damage. Refer to; refrigerant. Be sure to purge high side to low prior to removal.; Table 4; Pressure information; Design; Suction

Maintenance 18 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 refrige...

Page 25 - Specifications; PECIFICATIONS; Dimensional Data; Figure 6

Specifications 19 7.0 S PECIFICATIONS 7.1 Dimensional Data Figure 6 Dimensional data Table 5 InteleCool2 dimensional data in. (mm) Dimensional Data in. (mm) InteleCool Model Wu Ws Wf A B C D E F G H J K L 1.5/2 Ton 37-1/8 (943) 17-3/4 (451) 38-3/4 (984) 20 (508) 20 (508) 9-3/8 (238) 9-13/32 (239) 8 ...

Page 26 - Technical Data; Table 6

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...

Page 27 - Table 7

Specifications 21 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 85°F (29.4°C) Total 49100 (14.39) 58500 (17.14) Sensible 39300 (11.51) 4280...

Page 28 - Table 8

Specifications 22 Table 8 Technical data, 50 Hz Model ET017 ET023 ET035 Compressor type Hermetic Scroll Hermetic 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) Total 5.19 (17700) 5.92 (20200) 6.21 (21200) 6...

Page 29 - Table 9

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) Total 12.22 (41700) 14.97 (51100) Sensible 9.73 (33200) 10.78...

Page 30 - Optional heater capacity, 60 Hz; Optional heater capacity, 50 Hz; Nominal Heater Rating

Specifications 24 Table 10 Optional heater capacity, 60 Hz Nominal Heater Rating Heater Capacity - kW 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 Capacity @ 240V-1ph 5.000 5.000 5.000 5.000 5.000 Capacity @ ...

Page 33 - Troubleshooting; ROUBLESHOOTING; Troubleshooting guide; Problem

Troubleshooting 27 8.0 T ROUBLESHOOTING Table 14 Troubleshooting guide Problem Probable Cause Remedy Unit will not start 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 ...

Page 34 - Maintenance Inspection Checklist; Make photocopies of this form for your records

Maintenance Inspection Checklist 28 9.0 M AINTENANCE I NSPECTION C HECKLIST Liebert InteleCool2 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 we...

Page 35 - Parts; ARTS; Refrigeration system parts, 1.5 and 2 ton units

Parts 29 10.0 P ARTS Table 15 Refrigeration system parts, 1.5 and 2 ton units Figure No. Part Name/ Description Part # 1.5 Ton 2 Ton ET017S ET018P ET023S ET023M ET024P ET024Y ET024A 220-240V 1 Ph 50 Hz 208-230V 1 Ph 60 Hz 220-240V 1 Ph 50 Hz 380-415V 3 Ph 50 Hz 208-230V 1 Ph 60 Hz 208-230V 3 Ph 60 H...

Page 36 - Refrigeration system parts, 3 ton units

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 1 Ph 50 Hz 200-240V 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 Run capacitor, recip comp 7 - 7 Cap....

Page 47 - Figure 7; Crankcase

Parts 41 Figure 7 Condenser / piping assembly Figure 8 Crankcase heater (reciprocating compressor only) 2 1 3 4 10 7 8 5 9 6 2 1 Crankcase heater cartridge Compressor Retainer

Page 48 - Figure 9; TEV systems

Parts 42 Figure 9 Evaporator blower Figure 10 Evaporator coil and expansion valve 3 2 6 4 8 9 10 5 7 11 1 12 TEV systems 1 2

Page 49 - Figure 11 Electric panels; Evaporator “MF”

Parts 43 Figure 11 Electric panels 8 3 11 31 6 12 13 15 4 1 10 Evaporator “MF” 380 / 460 V, 3 phase 200 / 240 V, 3 phase 200 / 240 V, 1 phase 1 10 8 3 11 31 6 12 13 4 1 10 8 3 11 31 6 12 13 4 9 15 7 16 1A

Page 50 - Figure 12 Heater assembly; Connection

Parts 44 Figure 12 Heater assembly 5kW &10kW 208/230V, 1 phase (Parallel) Connection 15kW 208/230V, 1 phase (Parallel) Connection 5kW, 10kW & 15kW 380/460V, 3 phase (Wye) Connection 5kW, 10kW & 15kW 208/230V, 3 phase (Delta) Connection 159171G1 & G2, G13 & G14 159171G3 & G15 ...

Page 51 - Figure 13 Economizer assembly

Parts 45 Figure 13 Economizer assembly Figure 14 Common alarm assembly 2 1 3 6 5 4 7 1 3 2 5 4

Page 52 - Figure 15 Soft start device; To compressor

Parts 46 Figure 15 Soft start device To compressor capacitor 1

Page 53 - Notes

Page 56 - Precision Cooling

Ensuring The High Availability0f Mission-Critical Data And Applications. Emerson Network Power, the global leader in enabling business-criticalcontinuity, ensures network resiliency and adaptability througha family of technologies—including Liebert power and coolingtechnologies—that protect and supp...