Liebert 1010, 83, 205 251, 104 165, 308 415 Electrical field connections for VFD control condensers

Page 28

Inspection and Installation

Figure 20 Electrical field connections for VFD control condensers

Factory-installed fuse block on 60Hz units. Circuit breaker supplied in lieu of fuse block on 50Hz units.

Factory-wired to 24V control circuit.

Control interlock (70, 71) Field-supplied

Class 1 wiring to interlock condenser 24V controls to Liebert room unit; 7/8 in. (22.2mm) diameter hole provided in bottom of electric box.

Alarm Connections Field-supplied 24V Class 1 wiring to remote alarm circuits Variable Frequency Drive (VFD) alarm contact connections (13, 14)

Transient Voltage Surge Suppressor (TVSS) alarm contact connections (11, 12).

Electric service connection terminals with factory- supplied disconnect.

Factory-installed disconnect switch.

Electric service entrance. A 7/8" (22.2mm) diameter

hole in a 1-1/8 in (28.6mm) knockout provided in bottom of electric box.

	Factory-wired to components	Earth ground connection (60Hz).
	on electric panel.	Earth ground connection (60Hz).	Electric service,
	on electric panel.	Connection terminal for	Electric service,
		Connection terminal for	not by Liebert
	Earth ground bar (optional on 50Hz only). field-supplied earth grounding wire
	Connection terminals with factory	when factory disconnect is supplied.
	ground from each high voltage
	component for field-supplied
	earth grounding wire.

NOTE: Refer to specification sheet for full load amp. and wire size amp. ratings.

DPN001051 Rev. 0

24

Image 28

Contents Liebert Air Cooled, Direct Drive Condensers Three-phase voltage is only voltage available as standard Example DCDF165-YOn condensers with VFD Control, Lee-temp receivers, Fan Speed Control 2-8 fan models onlyTable of Contents System Maintenance OperationProduct Description and Features Head Pressure Control TypesFan Speed Variable Frequency DriveSound Level Options Typical System ConfigurationsTransient Voltage Surge Suppression Option Fan Speed and VFD Lee-Temp DischargeDimensions and Weights Site ConsiderationsSee for typical condenser footprint dimensions 1067 mmFour-Fan41-3/16 Condenser 1046mm Condenser footprint dimensions Operation and component accessSee for typical Typical condenser footprint-dimensions Piping connections for 6- and 8-fan Fan Speed Condensers Site Preparation Condenser physical data Quiet-Line ModelsRefrigerant Planning Values R-407C refrigerant required, approximateReceiver Quiet-Line Condenser ModelsEquipment Inspection Packing MaterialHandling Unit on the Skid Unpacking the UnitRemoving the Skid and Attaching Slings Attaching legs to a 6-fan or 8-fan unit StepMounting the Condenser Attaching sling to a 6-fan or 8-fan unit for movingLine Voltage Wiring Electrical Supply Preparation60Hz condenser data 50Hz condenser full load amp valuesLow Voltage Control Wiring Low Voltage Monitoring Wiring-TCDV OnlyElectrical Connections Lee-Temp receiver electrical data, 50Hz and 60Hz Delta-Connected Power Supply Wye-Connected Power Supply VFD Control Condensers Tcdv only Disconnect EMC Filter for Delta-Connected Power Electric service connection and fuse block Electrical Field Connection DescriptionsElectrical field connections for VFD control condensers Inspection and Installation Refrigeration Piping Connections Piping GuidelinesField Piping Installation VFD and Fan Speed Control condenser pipingLee-Temp head pressure control condenser piping Single Circuit Shown General arrangement-Air cooled models with Lee-Temp controlSystem Dehydration/Leak Test and Charging Procedures Moving and Placing Equipment ElectricalPiping OtherStartup Checklist StartupGeneral Procedures System MaintenanceSpecial Procedures Condenser CleaningWhen to Clean How to CleanMaintenance Inspection Checklist Monthly Semiannually CondenserCondenser Electrical Panel Condenser Electric Panel Fan MotorsTroubleshooting Symptom Possible Cause Check or RemedySystem Maintenance System Maintenance Page Ne t ItiTi n That