Related Manuals for AEC QuarterHorse Series 0.25 hp Portable Chiller PS-025
Summary of Contents for AEC QuarterHorse Series 0.25 hp Portable Chiller PS-025
- Page 1 PS-025 QuarterHorse Series 0.25 hp Portable Chiller Operation and Installation Manual...
- Page 2 AEC, Inc./Application Engineering is committed to a continuing program of product improvement. Specifications, appearance, and dimensions described in this manual are subject to change without notice. © Copyright AEC/Application Engineering and AEC, Inc. 2002 All rights reserved. Effective 9/24/02 Page 2 PS QuarterHorse Series Chillers...
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Page 3: Safety Considerations
Safety Considerations PS Series Chillers are designed to provide safe and reliable operation when installed and operated within design specifications, following national and local safety codes. To avoid possible personnel injury or equipment damage when installing, operating or maintaining this equipment, use good judgment and follow these safe practices: Follow all SAFETY CODES. -
Page 4: Table Of Contents
Table of Contents General Information ... 7 Introduction Necessary Documents Models Covered Available Options Uncrating Your New Chiller In the Event of Shipping Damages If the Shipment is Not Complete If the Shipment is Incorrect Returns Chiller Installation... 11 Electrical Connections Process Water Connections PS Condenser Air Supply Water Reservoir... -
Page 5: Ps Quarterhorse Series Chillers
Startup Checklists ... 17 Introduction PS Pre-Startup Checklist PS Startup Checklist Microprocessor Control... 19 Introduction Setting the Process Water Temperature Power Switch Routine Maintenance ... 21 Lubrication Condenser Maintenance Troubleshooting Guide ... 23 PS QuarterHorse Series Chillers Table of Contents Page 5... - Page 6 Charts and Figures PS050A Process Pump Curves PS Series Chiller Specifications Ethylene Glycol Curve Overhead Piping Page 6 PS QuarterHorse Series Chillers...
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Page 7: General Information
Standard range of operation is 50°F to 70°F (10°C to 21°C). This PS chiller is a ¼ hp (187 W) model and has an internal one gallon (3.8 liter) reservoir. It is self contained, fully assembled, and shipped ready to use. -
Page 8: Available Options
Available Options PS Series chillers are available with options that tailor the unit to your requirements. Some are factory installed, some can be retrofitted in the field. Consult your local Application Engineering Sales Representative. Some of these options are: Power Cord A 6 foot (1.8 m) power cord is available to speed PS installation. -
Page 9: In The Event Of Shipping Damages
In the Event of Shipping Damages According to the contract terms and conditions of the Carrier, the responsibility of the Shipper ends at the time and place of shipment. Notify the transportation company’s local agent. Hold the damaged goods and packing material for the examining agent’s inspection. -
Page 10: Returns
Returns Do not return any damaged or incorrect items until you receive shipping instructions from Application Engineering. TOTAL HEAD MTRS PSI FEET U. S. G ALLONS PER MINUTE LITRES PER MINUTE CURVES REPRESENT PUMP DISCHARG E ADJUSTED FOR INTERNAL BY-P ASS Cap. -
Page 11: Chiller Installation
Electrical Connections Check serial tag voltage and amperage requirements and make sure your electrical service conforms. See Figure 2 on Page 10 for total running amps. Electrical connections must comply with all applicable electrical codes. The chiller must be grounded in accordance with NEC Article 250. Voltage must be within 10% of the chiller’s nameplate rating. -
Page 12: Ps Condenser Air Supply
Process Water Bypass All PS chillers have an internal bypass device. If the process flow becomes blocked during chiller operation, this component allows water to flow through the chiller. This protects the chiller from freeze-up, excessive pressures, and pump damage, and allows other safety features to remain effective. - Page 13 If you want to use straight water, contact Application Engineering’s, Engineering Department. The 1 gallon (3.8 liter) reservoir is not designed to withstand water pressure above 5 psi (34 kPa). The fill opening and vent line must be vented to the atmosphere for proper operation.
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Page 14: Overhead Process Considerations
Overhead Process Considerations If your application has chilled water or process piping above the reservoir fill and vent level, install a standpipe to a point 1’ (30 cm) above the highest point in the system. In applications where the process or its piping is 15 feet (4.6 m) or more above the reservoir, you must take steps to prevent over-pressurization of the reservoir. -
Page 15: Sequence Of Operation
The PS unit has a leaving water temperature range of 50°F to 70°F (10°C to 18°C). Do not attempt to run the PS unit outside this temperature range Chilled Water Circuit Process cooling water supply and return connections are made at the pipe stubs at the rear of the chiller. - Page 16 - Notes - Page 16 PS QuarterHorse Series Chillers...
- Page 17 PS-025 QuarterHorse Series 0.25 hp Portable Chiller Operation and Installation Manual...
- Page 18 - Notes - Page 18 PS QuarterHorse Series Chillers...
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Page 19: Introduction
Introduction Standard PS Series chillers use a microprocessor based controller. The controller is a modular, self-contained unit that can slide from its mounting housing. It is factory set and adjusted; no field adjustment to the internal controls is necessary. Setting the Process Water Temperature •... - Page 20 - Notes - Page 20 PS QuarterHorse Series Chillers...
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Page 21: Routine Maintenance
Lubrication Every three months, grease all fan motors and pump motors that do not have permanently sealed bearings. Remove grease relief plug (motors only) before adding grease. Failure to do so may result in dislodging the bearing grease retainer, eventually causing bearing failure. - Page 22 - Notes - Page 22 PS QuarterHorse Series Chillers...
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Page 23: Troubleshooting Guide
Problem Chiller will not run. The leaving water temperature is too high. Pump pressure is low (see pump curve). Pump pressure is too high. Pump runs, compressor will not. Unit runs continuously, but not enough cooling power. PS QuarterHorse Series Chillers Troubleshooting Guide Possible cause No power. - Page 24 Service Notes Page 24 PS QuarterHorse Series Chillers...
- Page 25 Service Notes PS QuarterHorse Series Chillers Page 25...
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Page 26: Parts Department
The AEC/Application Engineering Parts Department at AEC, Inc. is ready to provide the parts to keep your systems up and running. AEC/Application Engineering replacement parts ensure operation at design specifications. Please have the model and serial number of your equipment when you call. Consult the Customer Parts List included in your information packet for replacement part numbers. - Page 27 Warranty AEC, Inc. warrants all equipment manufactured by it to be free from defects in workmanship and material when used under recommended conditions. The Company’s obligation is limited to repair or replace FOB the factory any parts that are returned prepaid within one year of equipment shipment to the original purchaser, and which, in the Company’s opinion, are defective.
- Page 28 801 AEC Drive • Wood Dale, IL 60191-1198 USA (630) 595-1060 • Fax (630) 595-6641 http://www.aecinternet.com...