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Trane PRGD series User Manual

Trane PRGD series
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4
PRGD-SVX01F-EN
EarthWise Purge System Nameplate . . . . . . . 5
EarthWise Purge System Model
Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Purge System Overview . . . . . . . . . . . . . . . . . . . . 7
General Information . . . . . . . . . . . . . . . . . . . . . . 7
Reference Sources. . . . . . . . . . . . . . . . . . . . . . . . 7
How a Purge System Works . . . . . . . . . . . . . . . 7
Refrigeration Circuit Subsystem. . . . . . . . 8
Purge Tank Subsystem . . . . . . . . . . . . . . . 11
Pump-out Subsystem . . . . . . . . . . . . . . . . 11
Carbon Tank and Regeneration
Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Tracer AdaptiView Control
Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Sequence of Operations . . . . . . . . . . . . . . . . . . . 13
Purge Operating Modes . . . . . . . . . . . . . . . . . . 13
Adaptive Mode . . . . . . . . . . . . . . . . . . . . . . 13
Adaptive Mode Process—Chiller
Compressor On . . . . . . . . . . . . . . . . . . . . . . 13
Adaptive Mode Procedure—Chiller
Compressor Off. . . . . . . . . . . . . . . . . . . . . . 14
Typical Purge Refrigeration Circuit
Operating Cycle . . . . . . . . . . . . . . . . . . . . . . . . . 16
Air Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pump-out Operating Sequence . . . . . . . . . . . 18
Non-condensable Pump-out
Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Non-condensable Pump-out
cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Establishing a Daily Pump-out Limit. . . . . . . 20
Carbon Tank and Regeneration
Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Carbon Regeneration Algorithm. . . . . . . 21
Carbon Tank Regeneration
Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Operator Interface . . . . . . . . . . . . . . . . . . . . . . . . . 23
Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Log Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Purge Operating Modes . . . . . . . . . . . . . . 23
Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Purge Settings . . . . . . . . . . . . . . . . . . . . . . . 24
Manual Control Settings . . . . . . . . . . . . . . 24
Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Weekly Maintenance. . . . . . . . . . . . . . . . . . . . . 25
Semi-Annual Maintenance . . . . . . . . . . . . . . . 25
Annual Maintenance . . . . . . . . . . . . . . . . . . . . . 25
Replacing the Filter-Drier Assembly . . . . . . . 25
Inspecting the Moisture Indicator . . . . . . . . . 26
Maintaining the Moisture-Indicating
Sight Glass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Removing Air After Servicing the
Chiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Carbon Regeneration Temperature
Diagnostic Procedure . . . . . . . . . . . . . . . . . . . . 30
Purge Refrigeration Circuit Diagnostic
Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Taking Surface Temperature
Measurements. . . . . . . . . . . . . . . . . . . . . . . 30
Determining the Refrigerant Charge
Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Determining Proper Expansion Valve
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Determining Correct Vapor Pick-up
and Liquid Return Line Connection
Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Using the Service Functions . . . . . . . . . . 31
Purge Regen Cycle . . . . . . . . . . . . . . . . . . . 31
Purge Exhaust Circuit Test . . . . . . . . . . . . 31
Exhaust Circuit Pressure Check. . . . . . . . 32
Exhaust Circuit Vacuum Check . . . . . . . . 32
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Schematic Wiring Diagram . . . . . . . . . . . . . . . . 34
EarthWise Purge System with Tracer
AdaptiView Controls . . . . . . . . . . . . . . . . . . . . . 34
Table of Contents

Table of Contents

Questions and Answers:

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Trane PRGD series Specifications

General IconGeneral
BrandTrane
ModelPRGD series
CategoryChiller
LanguageEnglish

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