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Liebert Challenger 3000 with iCOM

Liebert Challenger™ 3000 with iCOM Installation Manual - 3 ... - DCES

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7.5 Centrifugal Air-Cooled Condensing Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 657.5.1 Installing the Indoor Condensing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 657.5.2 Ducting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 667.6 Water and Glycol-Cooled Condensing Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 727.6.1 Piping Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 727.6.2 Condenser Water Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 727.6.3 Regulating Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 727.6.4 Glycol Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 738.0 R407C REFRIGERANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .778.1 Calculating Subcooling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78FIGURESFigure 1 Removing <strong>Challenger</strong> from skid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Figure 2 Upflow (BU) cabinet dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Figure 3 Downflow (BF) cabinet dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Figure 4 Piping connections for air-cooled units - Downflow models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Figure 5 Piping connections for air-cooled units - Upflow models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Figure 6 Piping connections for split system fan coil units - Downflow models . . . . . . . . . . . . . . . . . . . . . 12Figure 7 Piping connections for split system fan coil units - Upflow models . . . . . . . . . . . . . . . . . . . . . . . 13Figure 8 Piping connections for water/glycol and GLYCOOL units - Downflow models . . . . . . . . . . . . . . 14Figure 9 Piping connections for water/glycol and GLYCOOL units - Upflow models . . . . . . . . . . . . . . . . . 15Figure 10 Piping connections for chilled water self-contained units - Downflow models . . . . . . . . . . . . . . . 16Figure 11 Piping connections for chilled water self-contained units - Upflow models . . . . . . . . . . . . . . . . . 17Figure 12 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Figure 13 Electrical field connections for <strong>Liebert</strong> <strong>iCOM</strong> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Figure 14 Air-cooled condensers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Figure 15 General arrangement—Air-cooled models <strong>with</strong> fan speed control. . . . . . . . . . . . . . . . . . . . . . . . . 29Figure 16 General arrangement—Air-cooled models <strong>with</strong> digital scroll and fan speed control . . . . . . . . . . 30Figure 17 General arrangement—Air-cooled models <strong>with</strong> <strong>Liebert</strong> Lee-Temp . . . . . . . . . . . . . . . . . . . . . . . . 33Figure 18 General arrangement—Air-cooled models <strong>with</strong> digital scroll and <strong>Liebert</strong> Lee-Temp . . . . . . . . . 34Figure 19 General arrangement—Water-cooled models <strong>with</strong> scroll compressor . . . . . . . . . . . . . . . . . . . . . . 36Figure 20 General arrangement diagram—Water-cooled models <strong>with</strong> digital scroll . . . . . . . . . . . . . . . . . . 37Figure 21 Johnson Controls valve adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Figure 22 Metrex Valve adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Figure 23 Drycoolers and pump packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Figure 24 Pump packages—expansion tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Figure 25 General arrangement—Glycol-cooled models <strong>with</strong> scroll compressor . . . . . . . . . . . . . . . . . . . . . . 49Figure 26 General arrangement—Glycol-cooled models <strong>with</strong> digital scroll . . . . . . . . . . . . . . . . . . . . . . . . . . 50Figure 27 General arrangement—GLYCOOL models <strong>with</strong> scroll compressor. . . . . . . . . . . . . . . . . . . . . . . . 51Figure 28 General arrangement—GLYCOOL models <strong>with</strong> digital scroll compressor . . . . . . . . . . . . . . . . . . 52Figure 29 Chilled water general arrangement - Upflow (BU). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54Figure 30 Chilled water general arrangement - Downflow (BF) models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Figure 31 Refrigerant piping diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59Figure 32 Outdoor air-cooled condensing unit—horizontal air discharge models . . . . . . . . . . . . . . . . . . . . . 60Figure 33 Outdoor air-cooled condensing unit—top air discharge models . . . . . . . . . . . . . . . . . . . . . . . . . . . 62Figure 34 Electrical field connections, prop fan condensing module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64Figure 35 Detail of ceiling hanging bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66Figure 36 3-ton centrifugal air-cooled condensing unit dimensional data & piping connections . . . . . . . . . 67iii

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