Connection Size / Opening, Point Description Inches mm | Liebert DS

Piping Schematics

Figure 66 Primary connection locations—downflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressor models

NOTE: Drawing not to scale.

Tolerance on all			All dimensions from
piping dimensions	A	A	rear corner of unit ,
is ±1/2" (13mm)	Front View		including panels
	Section A-A		X	O
	Section A-A			O

4" (102mm)

L1 L2 G1 G2

16-7/16" (418mm)

R

ECS

HUM

CD E1 E2 ECR

Blower Outlet

16-1/16" (408mm)

B

LV1 LV2 LV3

Y

35"

(889mm)

FRONT OF UNIT
86"
(2184 mm)	DPN000803
	DPN000803
	Rev. 2

			X	Y	Connection Size / Opening
	Point	Description	inches (mm)	inches (mm)	inches (mm)

	R	Refrigerant Access	63 (1600)	13-13/16 (351)	16-7/16 x 4 (418 x 102)

	L1	Liquid Line System 1	79-3/16 (2011)	16-3/4 (425)	1/2 Cu Sweat

	L2	Liquid Line System 2	76-1/2 (1943)	16-3/4 (425)	1/2 Cu Sweat

	G1	Hot Gas Discharge 1	73-7/8 (1876)	16-3/4 (425)	5/8 Cu Sweat

	G2	Hot Gas Discharge 2	70-1/8 (1780)	16-3/4 (425)	5/8 Cu Sweat

	CD	Condensate Drain*	46 (1168)	29-1/2 (749)	3/4 FPT

		W/ Optional Pump	46 (1168)	29-1/2 (749)	1/2 Cu Sweat
		W/ Optional Pump	46 (1168)	29-1/2 (749)	1/2 Cu Sweat

	HUM	Humidifier Supply Line	53-1/2 (1359)	29 (737)	1/4 Cu Sweat

	ECS	Econ-O-Coil Supply	54-7/8 (1394)	22-9/16 (573)	1-5/8 Cu Sweat

	ECR	Econ-O-Coil Return	49-3/8 (1254)	30-3/4 (781)	1-5/8 Cu Sweat

	HS	Hot Water Reheat Supply		Consult factory

	HR	Hot Water Reheat Return		Consult factory

	E1	Electrical Connection (High Volt)	55-1/2 (1410)	31-1/4 (794)	2-1/2

	E2	Electrical Connection (High Volt)	52-7/16 (1332)	31-1/4 (794)	2-1/2

	LV1	Electrical Connection (Low Volt)	2-1/4 (57)	27 (686)	7/8

	LV2	Electrical Connection (Low Volt)	2-1/4 (57)	29 (737)	7/8

	LV3	Electrical Connection (Low Volt)	2-1/4 (57)	31 (787)	7/8

	B	Blower Outlet	21-15/16 (558)	18-1/16 (459)	18-3/4 x 16-1/16 (476 x 408)

*Field-pitch condensate drain line a minimum of 1/8" (3.2mm) per foot (305mm). All units contain a factory-installed condensate trap. Do not trap external to the unit. Drain line may contain boiling water. Select appropriate drain system materials. The drain line must comply with all local codes.

91

Image 101

Liebert DS user manual Connection Size / Opening, Point Description Inches mm

Contents

Liebert DS Page Table of Contents Electrical Connections MaintenancePiping 108 Compressor Replacement Hvac Maintenance Checklist Figures Page Page Tables Viii Important Safety Instructions Page Downflow model component locations Liebert DS Components and Nomenclature Upflow model component locations = Dual-Cooling Water/Glycol Three-stage Compressor U a Glycool Cooling Configurations Air Distribution-Downflow Units PRE-INSTALLATION GuidelinesRoom Preparation Air Distribution-Upflow Units Upflow ducting configurations Operating Conditions Connections and System Setup Shipping dimensions-domestic and export, inches mm Liebert DS Dimensions and WeightsShipping weights-approximate, kg 028/035/042 053/070/077 Model No 028, 035 Approximate Front View Dry Weight, lb kg Approximate Model No 028, 035Top View DPN000894 Dry Weight lb. kg Approximate51mm GLYCOOL/Dual-Cool Front View Dry Weight, lb kg Approximate Model 053 070 077 070 077 Dry Weight, lb kg Approximate Model No TOP View Compressor Dry Weight, lb kg, Approximate Type Model 053 Front View Dry Weight, lb kg approximate Compressor Type ModelTop View Dry Weight, lb kg approximate Compressor Type Model 105 Dry Weight, lb kg Model No 028-042 Compressor Type Model Dry Weight, lb kg approximate Alternate Refrigerant Piping Entrance Model No 053, 070 Top View Model 105 Weights-upflow, air-cooled, 105kW 30 ton, allDry Weight, Approximate, lb kg Compressor GLYCOOL/Dual-Cool Height, in. mm Turning Vane Dimensions, in. mm Model Floor stand dimensions-downflow, 53-77kW 15-22 ton models Floor stand dimensions-downflow, 105kW 30 ton models Models Blower Supply Dimensions for upflow, 28-42kW 8-12 ton Dimensions, in. mm Models Blower Supply Blower outlet and deck dimensions-upflow, 53-77kW 15-22 ton Dimensions, in. mm Models Blower Blower outlet and deck dimensions-upflow 105kW 30ton Dimensions, in mm Compressor Type # Filters Rear return filter box dimensions Left Side Views Right Side Views Check One Equipment Inspection and Handling Packaging Material Step 181659P1 Rev Unpacking the Unit Step Removing the Unit from the Skid With a Forklift Removing Piano Jacks Moving the unit to its installation location Rev Removing Liebert DS from Skid Using Rigging Lifting Sling Equal Equal Distance Distance Placing the Unit on a Floor Stand Semi-Hermetic Compressor Spring Isolation SystemDetail a Liebert Floor Stand front discharge shown Disassembling the Liebert DS for Transport Disassembly-Downflow UnitsRequired Equipment Reheat-Optional Component Remove the Filter and Electric Box Assembly Remove the Compressor Assembly Reconnecting Piping, Charging and Replacing Panels Reassembly-Downflow Units Reassembly Checklist Filter & Electric Box Assembly Filter & Electric Box Assembly 940mm 1930mm Assembly Assembled Height 1930mm 59-7/16 Semi-Hermetic Compressor Scroll Compressor Filter and Electric Box AssemblyBlower & Coil Assembly Component Air Cooled Dual Cool Dry Weight, lb kg Approximate Includes Panels Filter & Electric 1510mm Disassembly-Upflow Units Remove Blower and Electric Box Assembly Remove Compressor Assembly Reassembly-Upflow Unit 2159mm 31-1/4 794mm 85 2159mm Assembled Length 660mm 2083mm 108 2743mm Assembled Length 82 2083mm Blower & Electric Box Assembly 31-1/4 REV REV 31-1/4 794mm Electrical Connections Downflow LOW Volt Section Optional Electrical Connections Electrical Field Connection DescriptionsStandard Electrical Connections Optional Low Voltage Terminal Package Connections Fluid Connections Condensate Piping-Field-InstalledPiping Gravity Drain Gravity drain for downflow and upflow units Condensate Pump General Guidelines Requirements of Systems Using Water or GlycolHumidifier Supply Water-Optional Infrared Leak Checking of Unit and Field Piping Refrigeration Piping Recommended refrigerant line sizes OD copper inches Piping Guidelines-Air-Cooled Units Fan Lee-Temp Model Speed Includes receiver Liquid Line, lb kg Fan Speed Control Materials Supplied Fan Speed Control Leak Check and Evacuation ProcedureFan Speed Control Piping Fan Speed Charging Fan speed suction pressure transducer settings Lee-Temp Controlled Materials Supplied Lee-Temp Leak Check and Evacuation ProcedureLee-Temp Piping Lee-Temp Receiver Refrigerant Level Lee-Temp suction pressure transducer settingsLee-Temp Charging Piping schematic-air-cooled, semi-hermetic compressor models Piping Schematics Fan Speed Lee-Temp Liebert DS Unit Customer Heat Rejection Liebert Associated piping Piping schematic-GLYCOOL semi-hermetic compressor models Liebert Customer Heat Rejection Glycool with digital scroll compressor models DPN000805 Rev Optional piping schematic for Econ-O-Coil Point Description Inches mm Connection Size / Opening DPN000804 Front of Unit 53kW 15ton / 70 & 77kW 20 & 22ton DPN000929 Rev DPN000933 HUM E1 E2 Front of Unit DPN001015 CGD TOP View Top View of Unit Left Side Section ViewFront Section View Point Description In. mm 53kW 15 ton/70 & 77kW 20 & 22 ton Left Side Section View of Unit 53kW 15 tons/70 & 77kW 20 & 22 ton Left Side Section View Front Section View Left Side Section View Point Description Connection Size / Opening Piping data-upflow, air-cooled 105kW 30 ton, all Point Description Inches mm Opening, inches mm Connection Size Moving and Placing Equipment Checklist for Completed InstallationElectrical Other 108 109 Commissioning Procedure With Panels On Filters MaintenanceFilter quantities, downflow units Filter quantities, upflow units Blower Drive System Filter Replacement Procedure-Downflow UnitsFilter Replacement Procedure-Upflow Units Belt Removal Upflow Motor AccessBelt Installation and Tensioning Blower Bearing Replacement Blower Bearing MaintenanceBlower Bearing Inspection Blower Motor Humidifier Correct orientation of float switch Changing Humidifier Lamps Condensate Drain and Condensate Pump SystemsCondensate Drain Infrared Bulbs Compressor Air-Cooled Condenser and DrycoolersReheat-Electric Reheat Three-Stage and SCR Facility Fluid and Piping Maintenance Compressor Replacement Adjustment-Johnson Controls/Penn Johnson Valves Cleaning InstructionsParadenser-Water-Cooled Condenser Water/Glycol Control Valves Adjustment Testing Function of ValveLocation 12.11.2Motor Ball Valve-Digital Scroll Compressors Aquastat settings-two-fan through four-fan drycoolers 12.11.3Drycooler SettingsAquastat settings-six-fan drycoolers Aquastat settings-eight-fan drycoolers Hvac Maintenance Checklist Water-Cooled Condensers Refrigeration PipingCompressor Section Electrical Panel Glycol Pump Air-Cooled Condenser / DrycoolerPage Iti Ne tTi n That