Manual de instrucciones de Emerson 2

Manual de instrucciones del aparato Emerson 2

Aparato: Emerson 2
Categoría: Aparato de aire acondicionado
Fabricante: Emerson
Tamaño: 6.6 MB
Fecha de añadido: 3/11/2013
Número de páginas: 56
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Resumen del contenido incluido en la página 1

Precision Cooling
For Business-Critical Continuity

Liebert InteleCool2
User Manual - Outdoor Wall-Mount Air Conditioner,1.5 - 5 Tons, 50 & 60 Hz

Resumen del contenido incluido en la página 2

Resumen del contenido incluido en la página 3

TABLE OF CONTENTS 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.3 Optional Features. . . . . . . . . . . . . . . . . .

Resumen del contenido incluido en la página 4

6.5 Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.5.1 Refrigerant Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.5.2 Discharge Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.5.3 Thermostatic Expansion Valve . . . . . . . . . . . . . . . . .

Resumen del contenido incluido en la página 5

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 poten

Resumen del contenido incluido en la página 6

Figure i Model number designation External Telecommunication Nominal Btuhs (1000) 0=Standard Supply & Return Openings 3=4 or 5 Ton Unit With 3 Ton H = Hermetic Compressor Supply & Return Openings 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

Resumen del contenido incluido en la página 7

Introduction 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 Cana

Resumen del contenido incluido en la página 8

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 1.5, 2 and 3 Ton Units The quiet and efficient scroll compressor features a suction gas cooled motor

Resumen del contenido incluido en la página 9

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 pres- sure 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. The switch will

Resumen del contenido incluido en la página 10

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 pene- trating 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 mini- mum. Outside air adds to the cooling, heating, and filtration loads of the site. Doors should be prop- erly sealed to minimize leaks

Resumen del contenido incluido en la página 11

Installation Figure 1 Unit mounting dimensions 11" 11" 11" P (279mm) (279mm) (279mm) J E K A C F K K G B D K H See Table 1 below for K keys to dimensions. L M ref. N Wf 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 38-3/4 20 20 9-3/8 9-13/32 8 20-3/4 12 25-1/16 5-15/32 12 3-25/32 4-1/2 37-7/8 2-15/32 1.5-2 Ton (984) (508) (508) (238) (239) (203) (527) (305) (638) (139) (305) (96) (114) (962) (63) 38-3/4 28 28 5-3/8 5-3/8 8 18 14 26

Resumen del contenido incluido en la página 12

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 ! Use voltmeter to make sure power is turned off before making any electrical connections. CAUTION ! Refer to electrical schematic wh

Resumen del contenido incluido en la página 13

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. Contact your local waste management authority for instructions reg

Resumen del contenido incluido en la página 14

Installation 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 uni

Resumen del contenido incluido en la página 15

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. _

Resumen del contenido incluido en la página 16

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

Resumen del contenido incluido en la página 17

Operation 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 vap

Resumen del contenido incluido en la página 18

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. If outdoor conditions are favorable on a

Resumen del contenido incluido en la página 19

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. Operating modes are controlled by contact closures as follows: Table 2 Operating modes/contact closures Connection Operating Mode R 24 VAC G Evaporator Fan WHeating Y Cooli

Resumen del contenido incluido en la página 20

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. On a call for cooling,


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