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Precision Cooling
For Business-Critical Continuity™
® ®
Liebert Dual Unit Control for InteleCool and InteleCool2
User Manual
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TABLE OF CONTENTS 1.0 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.1 Connecting the Dual Unit Controller to an Electronic Thermostat . . . . . . . . . . . . . . . . . . . . 1 1.1.1 Connecting the Dual Unit Controller to an InteleCool2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1.2 Connecting the Dual Unit Controller to the InteleCool . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Installation 1.0 INSTALLATION The optional Dual Unit Control is designed to control two InteleCool or two InteleCool2® units in a lead/lag fashion. The control contains an electronic timer for switching the operating sequence of two units at intervals of one, two, four or eight days. It also contains a two-stage heat/two-stage cool electronic thermostat with individual heat and cool setpoints. Light emitting diodes (LEDs) indicate Lead Unit 1 or 2 and power to Unit 1 or Unit 2. If required f
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Installation 1.1.2 Connecting the Dual Unit Controller to the InteleCool 1. Install and level the Dual Unit Control.Leveling is not critical because the electronic thermostat does not contain mercury-filled limit switches. 2. Wire the InteleCool units to the Dual Unit Control using industry-standard thermostat cable. Each InteleCool will need at least 4 conductor, 20 gauge, Class 2 copper wire for distances up to 50 feet (15.2m). Use 18 gauge, Class 2 copper wire for distances between 50 and
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Control Startup 2.0 CONTROL STARTUP 2.1 Start the Dual Unit Control 1. Turn the thermostat Off. 2. Turn on power to both InteleCool2 units. 3. Turn on circuit breakers in each InteleCool2. Both green “POWER ON” LED’s and 1 of the green “LEAD UNIT” LED’s of the Dual Unit Control will be lit if the unit has been properly connected. 4. Turn the thermostat switch to the “Auto” setting. One or both of the InteleCool2 units should start if the thermostat is in a call for heating or cool- ing. 2.2 Che
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Unit 2 Unit 1 TB1 1/2 RY 1/2 WR YW Control Startup Figure 1 Dual Unit Control Board P5 12 P5 Reverse to LED P4 Normal Panel 34 1 2 DRAWING IS P1 Slow NOT TO SCALE P3 Fast 1 2 34 3 P1 to 4 Thermostat 5 6 7 8/4Day 4/2Day 2/1Day Lead1 Lead2 S e r P2 v i c e WARNING ! InteleCool and InteleCool2 units contain potentially lethal voltage. Shut off power before performing any service work. During service, the P2 jumper should be placed on the pins that identify the unit NOT being serviced. Refer t
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Disposal of Dual Unit Control 3.0 DISPOSAL OF DUAL UNIT CONTROL Some thermostats used on this control may contain mercury in a sealed tube. Do not place the control in the trash at the end of its useful life. If this control is replacing a control that contains mercury in a sealed tube, do not place the old con- trol in the trash. Contact your local waste management authority for instructions regarding recy- cling and the proper disposal of this control or of an old control containing mercury
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Ensuring The High Availability 0f Mission-Critical Data And Applications. Technical Support / Service Emerson Network Power, the global leader in enabling business-critical Web Site continuity, ensures network resiliency and adaptability through www.liebert.com a family of technologies—including Liebert power and cooling Monitoring technologies—that protect and support business-critical systems. 800-222-5877 Liebert solutions employ an adaptive architecture that responds monitoring@emersonnetwor
