Contents
TABLE OF CONTENTS
SAFETY CONSIDERATIONS
Fig. 1-Unit50GS and 50GX
Installation, Start-Up,and Operating Instructions
RECEIVING AND INSTALLATION Step 1-CheckEquipment
INTRODUCTION
Step 2-ProvideUnit Support
Step 3-ProvideClearances
Fig. 2- 50GS018-042and 50GX024-036Unit Dimensions
Fig. 3- 50GS048-060and 50GX042-060Unit Dimensions
Fig. 4A- Roof Curb Dimensions
Roof Curb for Small Cabinet
Roof Curb for Large Cabinet
Insulated
Fig. 4B-50GSand 50GX Unit Corner Weights
Fig. 5A-UnitLeveling Tolerances
Fig. 5B-SlabMounting Detail
TOTAL WEIGHT
Fig. 6-SuggestedRigging
Step 7-InstallDuct Connections
Step 6-ConnectCondensate Drain
Table 1-Physical Data-Unit50GS
Table 2-Physical Data-Unit50GX
Step 8-InstallElectrical Connection
Fig. 7-CondensateTrap
Table 3-MinimumAirflow for Safe Electric Heater
Operation Cfm
Fig. 9-VerticalDuct Cover Removed
Fig. 10-High-and Control-VoltageConnections
Table 4-Electrical Data-50GS
POWER SUPPLY
UNIT 50GS
VOLTAGE
Table 5-Electrical Data-50GX
POWER SUPPLY
VOLTAGE
COMPRESSOR
PRE-START-UP
Fig. 11-FanBlade Clearance
START-UP
Fig. 12-WiringDiagram 208/230-60-1
C99003
Fig. 13-WiringDiagram 208/230-60-3
C99004
Fig. 14-WiringDiagram
C99005
Table 6-ColorCoding for 208/230-VMotor Leads
MAINTENANCE
Table 7-ColorCoding for 460-VGE Motor Leads
Horizontal and Downflow Discharge
Unit 50GS018-060
230 AND 460 VOLT
Unit
Unit 50GX024-060
Horizontal and Downflow Discharge
Fig. 15-CoolingCharging Chart, 50GS018 Units
Fig. 17-CoolingCharging Chart, 50GS030 Units
Fig. 16-CoolingCharging Chart, 50GS024 Units
Fig. 18-CoolingCharging Chart, 50GS036 Units
Fig. 19-CoolingCharging Chart, 50GS042 Units
Fig. 21-CoolingCharging Chart, 50GS060 Units
Fig. 20-CoolingCharging Chart, 50GS048 Units
Fig. 22-CoolingCharging Chart, 50GX024 Units
Fig. 23-CoolingCharging Chart, 50GX030 Units
Fig. 25-CoolingCharging Chart, 50GX042 Units
Fig. 24-CoolingCharging Chart, 50GX036 Units
Fig. 26-CoolingCharging Chart, 50GX048 Units
Fig. 27-CoolingCharging Chart, 50GX060 Units
TROUBLESHOOTING
START-UPCHECKLIST
Table 10-Troubleshooting-Cooling
SYMPTOM
Three-phasescroll compressor 50GS048
CAUSE
START-UPCHECKLIST REMOVE AND STORE IN JOB FILE
TEMPERATURE
I. PRELIMINARY INFORMATION
II. PRE-START-UP
50gsgx4si
