Manuals / Sterling / Kitchen Appliance / Refrigerator

Sterling specifications GP Series Portable Chillers, Appendix, 41 of, G-PWC-50

Models: GP Series

1 44

Download 44 pages 61.28 Kb

Page 41

G-PWC-50

COOLANT SUPPLY TEMPERATURE	50	°F	COMPRESSOR POWER	8323		WATTS
CONDENSER INLET WATER	85	°F	EER	16.31		BTU/WATT
TEMPERATURE	85	°F	EER	16.31		BTU/WATT
TEMPERATURE
COOLANT	WATER		CONDENSER WATER FLOW	33.93		GPM
COOLANT FLOW	27	GPM	SOUND POWER LEVEL			dBA
UNIT PRESSURE DROP	7	PSID	SOUND PRESSURE LEVEL @ 1	dBA
UNIT PRESSURE DROP	7	PSID	METER	dBA
			METER
		OPERATING PARAMETERS
COOLANT SUPPLY TEMPERATURE	20-80	°F	COOLANT FLOW	30		GPM
CONDENSER INLET WATER	50-90	°F	MINIMUM LOAD	2.262		TONS
TEMPERATURE	50-90	°F	MINIMUM LOAD	2.262		TONS
TEMPERATURE
		SPECIFICATIONS
COMPRESSOR	SCROLL		EVAPORATOR FILTER	20 MESH
COOLANT PUMP	STAINLESS STEEL		COOLANT CIRCUIT	NON-FERROUS
COOLANT PUMP	CENTRIFUGAL		COOLANT CIRCUIT	NON-FERROUS
	CENTRIFUGAL
EVAPORATOR	BRAZED PLATE		CAPACITY CONTROL	HOT GAS BYPASS
CONDENSER	TUBE IN TUBE		REFRIGERANT	6 LBS R-410A
			FRAME	GALVANIZED STEEL
			PANELS	POWDER COATED STEEL
RESERVOIR	40 GALLON POLYETHYLENE		WEIGHT (OPERATING)	1090		LBS
POWER	460V/3PH/60HZ		WEIGHT (SHIPPING)	760		LBS
CONTROL CIRCUIT	120	VDC	ELECTRICAL ENCLOSURE	NEMA 12
COMPRESSOR FULL LOAD AMPS	20	AMPS	CONTROL	MICROPROCESSOR

G-PWC-50

PERFORMANCE (NOMINAL DESIGN CONDITIONS)

COOLING CAPACITY	16.76	TONS	ALTITUDE			SEA LEVEL
COOLANT SUPPLY TEMPERATURE	50	°F	COMPRESSOR POWER	12789		WATTS
CONDENSER INLET WATER	85	°F	EER	15.72		BTU/WATT
TEMPERATURE	85	°F	EER	15.72		BTU/WATT
TEMPERATURE
COOLANT	WATER		CONDENSER WATER FLOW	50.28		GPM
COOLANT FLOW	40	GPM	SOUND POWER LEVEL			dBA
UNIT PRESSURE DROP	7	PSID	SOUND PRESSURE LEVEL @ 1	dBA
UNIT PRESSURE DROP	7	PSID	METER	dBA
			METER
		OPERATING PARAMETERS
COOLANT SUPPLY TEMPERATURE	20-80	°F	COOLANT FLOW	45		GPM
CONDENSER INLET WATER	50-90	°F	MINIMUM LOAD	3.352		TONS
TEMPERATURE	50-90	°F	MINIMUM LOAD	3.352		TONS
TEMPERATURE
		SPECIFICATIONS
COMPRESSOR	SCROLL		EVAPORATOR FILTER	20 MESH
COOLANT PUMP	STAINLESS STEEL		COOLANT CIRCUIT	NON-FERROUS
COOLANT PUMP	CENTRIFUGAL		COOLANT CIRCUIT	NON-FERROUS
	CENTRIFUGAL
EVAPORATOR	BRAZED PLATE		CAPACITY CONTROL	HOT GAS BYPASS
CONDENSER	TUBE IN TUBE		REFRIGERANT	8 LBS R-410A
			FRAME	GALVANIZED STEEL
			PANELS	POWDER COATED STEEL
RESERVOIR	40 GALLON POLYETHYLENE		WEIGHT (OPERATING)	1290		LBS
POWER	460V/3PH/60HZ		WEIGHT (SHIPPING)	950		LBS
CONTROL CIRCUIT	120	VDC	ELECTRICAL ENCLOSURE	NEMA 12
COMPRESSOR FULL LOAD AMPS	30	AMPS	CONTROL	MICROPROCESSOR

GP Series Portable Chillers

Chapter 7: Appendix

41 of 44

Image 41

Sterling specifications GP Series Portable Chillers, Appendix, 41 of, G-PWC-50, Performance Nominal Design Conditions

Contents

Part Number Bulletin Number SC2-620 Effective 5/1/2009 GP Series Portable ChillersWe are committed to a continuing program of product improvement ECN No Copyright 2009 All rights reservedUnpacking and Inspection Shipping InformationIn the Event of Shipping Damage If the Shipment is Not CompleteCHAPTER 1 SAFETY Table of ContentsCHAPTER 3 INSTALLATION CHAPTER 2 FUNCTIONAL DESCRIPTIONCHAPTER 7 APPENDIX CHAPTER 5 MAINTENANCECHAPTER 6 TROUBLESHOOTING Safety Symbols Used in this Manual Chapter 1 Safety1-1 How to Use This Manual 9 Wear SAFETY GLASSES and WORK GLOVES 1-2 Warnings and Precautions9 Use care when LOADING, UNLOADING, RIGGING, or MOVING this equipment SYSTEM. This must be performed by a qualified service technician only2-1 Models Covered in This Manual Chapter 2 Functional Description2-2 General Description Chilled Water CircuitMechanical Features 2-3 Standard FeaturesOther Mechanical Features Electrical FeaturesRefrigeration Features 2-4 Safety Devices and InterlocksController Features Other FeaturesLow Pressure Cutout no switch but done through the transducer 2-5 Optional FeaturesFlow Switch High Pressure CutoutMounting Features Voltage Figure 1 Optional Pump AmperagesConstruction Full Load Amps3-2 Electrical Connections Chapter 3 Installation3-1 Uncrating 3-4 Bypass Valve Considerations 3-3 Process Water Connections3-5 Galvanic Corrosion Considerations 3-6 Water Treatment ConsiderationsAir-Cooled Chiller Condensers 3-7 Condenser ConsiderationsWater-Cooled Chiller Condensers 3-8 Checking Motor Direction Three-Phase CompressorsWater Pumps Condenser FanDescription 3-9 Water ReservoirPart Number From Figure 28, 25F equates to 10% by volume of glycol required Figure 2 Ethylene Glycol and Propylene Glycol CurvesExample 45F set point minus 20F = 25F Pe rce nt Glyc ol Cu rves for Free ze P rotec tion3-11 Initial Start-Up 3-12 Finishing Setup Setting Up Passwords3-10 Automatic Water Make-Up Option 1. Press the button to access the menu screen To set password protectionsor the following screen for the Supervisor Password Chapter 3 InstallationChapter 3 Installation 6. Press to accept the Password and move to the next lineGP Series Portable Chillers 21 ofChapter 4 Operation 4-1 Panel Buttons, Indicator Lights, and SwitchesMicroprocessor Controller Figure 3 - Controller DisplayFigure 5 - Menu Screen 4-2 Initial Start-upFigure 4 - Main Status Screen Figure 6 - Operator Setpoints Screen Figure 7 - Main Status Screen 4-3 Status ScreensGP Series Portable Chillers 4-4 Access LevelsChapter 4 Operation 26 of27 of GP Series Portable ChillersChapter 4 Operation Operator Controller SetpointsFigure 8 - Menu Screen Figure 9 - Operator Setpoints Screen 4-6 Alarms4-7 Optional Communications 31 of GP Series Portable ChillersChapter 4 Operation 5-2 Filter Cleaning Chapter 5 Maintenance5-1 Lubrication 5-3 Maintaining the Condenser5-5 Evaporator Process Piping Y-Strainer 5-6 Preventative Maintenance Service5-4 Maintaining the Evaporator Chapter 6 Troubleshooting 35 of Chapter 6 TroubleshootingGP Series Portable Chillers Chapter 7 Appendix Warranty Returns7-1 Returned Material Policy Credit Returns7-2 Technical Assistance Service DepartmentParts Department Sales DepartmentAir-Cooled Portable Chillers 7-3 SpecificationsG-PAC-20 G-PAC-30Chapter 7 Appendix GP Series Portable Chillers39 of G-PAC-40G-PWC-20 Water-Cooled Portable ChillersG-PWC-30 G-PWC-40Chapter 7 Appendix GP Series Portable Chillers41 of G-PWC-5060 Hertz Pump Curves 7-4 Pump Curves, Flow, and Pressure ConsiderationsHead ft Capacity Gal/minCalculating Chiller Nominal Flow and Pressure to Process 7-5 Electrical Schematic