DPN000804 | Liebert DS specification

Piping Schematics

Figure 67 Primary connection locations—downflow, air-Cooled, 28-42kW (8-12 ton) with scroll compressor models

Note: Drawing not to scale

Tolerance on all piping dimensions A is ± 1/2" (13mm)

			All dimensions
			All dimensions
			from rear corner
			from rear corner
	A		of unit including
Front View	A		of unit including
Front View			panels
Section A-A				X				O
Section A-A								O

	Blower	16-1/16"
R	Outlet	(408mm)
R
4" (102mm) L1 L2 G1 G2		B

	11-3/16"	ECS
	(284mm)	ECS
	(284mm)

	HUM	LV1
	CD	LV2
	CD	LV3
	E1 E2 ECR	LV3
	E1 E2 ECR

Front of Unit

Y

35"

(889mm)

				73"
				73"
			(1854mm)					DPN000804
								Rev. 2

			X				Y	Connection Size / Opening
Point	Description		inches (mm)				inches (mm)	inches (mm)
R	Refrigerant Access		59-5/16 (1507)				14-3/4 (375)	11-3/16 x 4 (284 x 102)

L1	Liquid Line System 1		69-15/16 (1776)				16-13/16 (411)	1/2 Cu Sweat

L2	Liquid Line System 2		67-5/8 (1718)				16-13/16 (411)	1/2 Cu Sweat

G1	Hot Gas Discharge 1		65-1/2 (1664)				16-13/16 (411)	5/8 Cu Sweat

G2	Hot Gas Discharge 2		62-7/16 (1586)				16-13/16 (411)	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 (557)				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.

92

Image 102

Liebert DS user manual DPN000804

Contents

Liebert DS Page Table of Contents Piping MaintenanceElectrical Connections 108 Hvac Maintenance Checklist Compressor Replacement Figures Page Page Tables Viii Important Safety Instructions Page Liebert DS Components and Nomenclature Downflow model component locations Upflow model component locations U a = Dual-Cooling Water/Glycol Three-stage Compressor Cooling Configurations Glycool PRE-INSTALLATION Guidelines Room PreparationAir Distribution-Downflow Units Upflow ducting configurations Air Distribution-Upflow Units Connections and System Setup Operating Conditions Shipping weights-approximate, kg Liebert DS Dimensions and WeightsShipping dimensions-domestic and export, inches mm 028/035/042 053/070/077 Approximate Model No 028, 035 Dry Weight, lb kg Approximate Model No 028, 035 Top ViewFront View 51mm Dry Weight lb. kg ApproximateDPN000894 GLYCOOL/Dual-Cool Dry Weight, lb kg Approximate Model 053 070 077 Front View Dry Weight, lb kg Approximate Model No 070 077 Compressor Dry Weight, lb kg, Approximate Type Model 053 TOP View Dry Weight, lb kg approximate Compressor Type Model Top ViewFront View Dry Weight, lb kg approximate Compressor Type Model 105 Dry Weight, lb kg Model No 028-042 Dry Weight, lb kg approximate Compressor Type Model Alternate Refrigerant Piping Entrance Model No 053, 070 Top View Weights-upflow, air-cooled, 105kW 30 ton, all Dry Weight, Approximate, lb kgModel 105 Compressor GLYCOOL/Dual-Cool Dimensions, in. mm Model Height, in. mm Turning Vane Floor stand dimensions-downflow, 53-77kW 15-22 ton models Floor stand dimensions-downflow, 105kW 30 ton models Dimensions for upflow, 28-42kW 8-12 ton Models Blower Supply Blower outlet and deck dimensions-upflow, 53-77kW 15-22 ton Dimensions, in. mm Models Blower Supply Blower outlet and deck dimensions-upflow 105kW 30ton Dimensions, in. mm Models Blower Rear return filter box dimensions Dimensions, in mm Compressor Type # Filters Left Side Views Right Side Views Check One Packaging Material Equipment Inspection and Handling Unpacking the Unit Step 181659P1 Rev Removing the Unit from the Skid With a Forklift Step Moving the unit to its installation location Removing Piano Jacks Removing Liebert DS from Skid Using Rigging Rev Lifting Sling Equal Equal Distance Distance Detail a Semi-Hermetic Compressor Spring Isolation SystemPlacing the Unit on a Floor Stand Liebert Floor Stand front discharge shown Disassembly-Downflow Units Required EquipmentDisassembling the Liebert DS for Transport Reheat-Optional Component Remove the Compressor Assembly Remove the Filter and Electric Box Assembly Reassembly-Downflow Units Reconnecting Piping, Charging and Replacing Panels Reassembly Checklist Filter & Electric Box Assembly Filter & Electric Box Assembly 940mm 1930mm Assembly Assembled Height 1930mm 59-7/16 Filter and Electric Box Assembly Blower & Coil AssemblySemi-Hermetic Compressor Scroll Compressor Dry Weight, lb kg Approximate Includes Panels Component Air Cooled Dual Cool Filter & Electric 1510mm Disassembly-Upflow Units Remove Compressor Assembly Remove Blower and Electric Box 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 Electrical Field Connection Descriptions Standard Electrical ConnectionsOptional Electrical Connections Optional Low Voltage Terminal Package Connections Piping Condensate Piping-Field-InstalledFluid Connections Gravity Drain Condensate Pump Gravity drain for downflow and upflow units Requirements of Systems Using Water or Glycol Humidifier Supply Water-Optional InfraredGeneral Guidelines Refrigeration Piping Leak Checking of Unit and Field Piping Piping Guidelines-Air-Cooled Units Recommended refrigerant line sizes OD copper inches Liquid Line, lb kg Fan Lee-Temp Model Speed Includes receiver Fan Speed Control Leak Check and Evacuation Procedure Fan Speed Control PipingFan Speed Control Materials Supplied Fan speed suction pressure transducer settings Fan Speed Charging Lee-Temp Leak Check and Evacuation Procedure Lee-Temp PipingLee-Temp Controlled Materials Supplied Lee-Temp suction pressure transducer settings Lee-Temp ChargingLee-Temp Receiver Refrigerant Level Piping Schematics Piping schematic-air-cooled, semi-hermetic compressor models Lee-Temp Fan Speed Customer Heat Rejection Liebert DS Unit Liebert Piping schematic-GLYCOOL semi-hermetic compressor models Associated piping Liebert Customer Heat Rejection Glycool with digital scroll compressor models Optional piping schematic for Econ-O-Coil DPN000805 Rev Connection Size / Opening Point Description Inches mm DPN000804 Front of Unit 53kW 15ton / 70 & 77kW 20 & 22ton DPN000929 Rev DPN000933 HUM E1 E2 Front of Unit DPN001015 CGD TOP View Front Section View Left Side Section ViewTop View of Unit Point Description In. mm Left Side Section View of Unit 53kW 15 ton/70 & 77kW 20 & 22 ton Left Side Section View 53kW 15 tons/70 & 77kW 20 & 22 ton Left Side Section View Front Section View Piping data-upflow, air-cooled 105kW 30 ton, all Point Description Connection Size / Opening Connection Size Point Description Inches mm Opening, inches mm Electrical Checklist for Completed InstallationMoving and Placing Equipment Other 108 109 Commissioning Procedure With Panels On Filter quantities, downflow units MaintenanceFilters Filter quantities, upflow units Filter Replacement Procedure-Downflow Units Filter Replacement Procedure-Upflow UnitsBlower Drive System Upflow Motor Access Belt Installation and TensioningBelt Removal Blower Bearing Inspection Blower Bearing MaintenanceBlower Bearing Replacement Blower Motor Correct orientation of float switch Humidifier Condensate Drain Condensate Drain and Condensate Pump SystemsChanging Humidifier Lamps Infrared Bulbs Air-Cooled Condenser and Drycoolers Reheat-Electric Reheat Three-Stage and SCRCompressor Compressor Replacement Facility Fluid and Piping Maintenance Paradenser-Water-Cooled Condenser Cleaning InstructionsAdjustment-Johnson Controls/Penn Johnson Valves Water/Glycol Control Valves Location Testing Function of ValveAdjustment 12.11.2Motor Ball Valve-Digital Scroll Compressors Aquastat settings-six-fan drycoolers 12.11.3Drycooler SettingsAquastat settings-two-fan through four-fan drycoolers Aquastat settings-eight-fan drycoolers Hvac Maintenance Checklist Compressor Section Refrigeration PipingWater-Cooled Condensers Electrical Panel Air-Cooled Condenser / Drycooler Glycol PumpPage Ti n Ne tIti That