Emerson Figure i manual Electrical field connections, 1- to 5-ton units, Top Air Discharge Models

Page 13

Installation

Figure 7 Electrical field connections, 1- to 5-ton units

Field-supplied unit disconnect switch

Single- or three-phase electric service not provided by Liebert

Single- or three-phase			Field-supplied unit
Single- or three-phase			disconnect switch
electric service not provided
by Liebert
by Liebert

Field-supplied 24V NEC Class 2 wiring

to evaporator module

Field-supplied 24V NEC Class 2 wiring to evaporator module

Horizontal Air Discharge Models

Top Air Discharge Models

Electric service connection to contactor or terminal block

Single- or three-phase electric service not provided by Liebert

High-voltage electric power supply entrance

Low-voltage electric power supply entrance

Earth ground connection terminal for field wiring

(5 Ton High Ambient or 5 Ton Quiet-Line)

Factory-wired

to components on electric panel

Heat rejection connection. Field-supplied 24V NEC Class 2 wiring.

Wire connections from evaporator module:

1. 24V GND

2. 24V Supply

3. High Pressure Alarm

4. Hot Gas Bypass Connection

DPN000134

Refer to tables or unit serial label Rev. 1 for FLA, WSA and OPD values.

9

Image 13

Contents Liebert Prop Fan Condensing Unit = 380/415-3ph-50Hz Example PFH037A-PL7Table of Contents Figures Optional Equipment Prop Fan Condensing UnitsLocation Considerations Equipment InspectionNet Weight Dimensional DataModel Numbers Dimensional Data, in. mm Lb. kg 60Hz 50Hz Cabinet and floor planning data, horizontal air dischargeFootprint Dimensions Wall Mounting Electrical and piping connections, horizontal air discharge Piping and Electrical ConnectionsPFH096A- L 152General piping arrangement Top Air Discharge Models Electrical field connections, 1- to 5-ton unitsElectrical field connections, 8-ton units Single-phase, 1-3 ton model schematic, typical Three-phase, 3-5 ton model schematic, typical Three-phase, 8 ton model schematic, typical Piping for Elevation Differences between PFH and Evaporator Piping ConsiderationsCondensing Unit EvaporatorEquivalent lengths for various pipe fittings, ft m Field-Fabricated Line Sets Pre-Charged Line SetsRefrigerant charge in Liebert pre-charged R-407C line sets Line Size Length Charge R-407C Ft. m Lb-oz kgRecommended line sizes, OD Cu Liebert PFH unit charge levels and coupling sizePiping connection sizes and torque Installation of Piping to UnitsLine charges refrigerant per 100 ft m of Type L copper tube Line Size OD Cu Coupling Size Torque, lb-ft. N-mInstall the New Condensing Unit Filter Drier Selection and InstallationRemove Existing Condensing Unit Evaporator Charge Levels General System Charge RequirementsEvaporator Charge R-407C Indoor Unit Models Oz kg Low-Voltage Control Wire Sizing Low-Voltage Control Wire ConnectionsElectrical Connections Nominal Input Voltage-Phase Capacity Electrical Nominal Input Voltage- Phase Capacity ElectricalElectrical Data Electrical data-High ambient models 105F/41C 60HzElectrical data-High ambient models 105F/41C 50Hz Electrical data-Quiet-Line models 95F/35C 60HzElectrical data Quiet-Line models 95F/35C 50Hz Checklist for Completed InstallationHigh Head Pressure CompressorLiebert Lee-Temp Flood Back Head Pressure Control Hot Gas Bypass AdjustmentOperation Hot gas bypass diagram Compressor Failure GeneralElectrical Failure-Burnout Mechanical FailureCompressor Replacement Field verification charge Field Charge VerificationModel Numbers 407C 60 Hz 50 Hz Oz kg Problem Cause Remedy TroubleshootingWeb Site Monitoring Single-Phase&Three-Phase UPS Environmental SystemsUni Etwo