HP (Hewlett-Packard) PS-025 User Manual

PS-025 QuarterHorse Series

0.25 hp Portable Chiller

Operation and Installation Manual

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.

Page 2 PS QuarterHorse Series Chillers

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. ; Wear SAFETY GLASSES and WORK GLOVES. ; Use care when LOADING, UNLOADING, RIGGING, or

MOVING this equipment.

; Operate this equipment within design specifications. ; OPEN, TAG, and LOCK ALL DISCONNECTS before working

on equipment. It is a good idea to remove the fuses and carry them with you.

; Make sure the chiller is properly GROUNDED before switching

power on.

; When welding or brazing in or around this equipment, be sure

VENTILATION is ADEQUATE. PROTECT adjacent materials from flame or sparks by shielding with sheet metal. An approved FIRE EXTINGUISHER should be close at hand and ready for use if needed.

; The refrigeration system can develop refrigerant pressures in excess

of 500 psi (3,450 kPa). DO NOT CUT into the system without first relieving pressure.

; Do not jump or bypass any electrical safety control. ; Do not restore power until all tools, test equipment etc. have been

removed and the panels replaced.

; Only PROPERLY TRAINED personnel familiar with the

information within this manual should work on this equipment.

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Table of Contents

General Information .................................................7

1-1 Introduction 1-2 Necessary Documents 1-3 Models Covered 1-4 Available Options 1-5 Uncrating Your New Chiller 1-6 In the Event of Shipping Damages 1-7 If the Shipment is Not Complete 1-8 If the Shipment is Incorrect 1-9 Returns

Chiller Installation...................................................11

2-1 Electrical Connections 2-2 Process Water Connections 2-3 PS Condenser Air Supply 2-4 Water Reservoir 2-5 Overhead Process Considerations

Sequence of Operation ..........................................15

3-1 Chilled Water Circuit 3-2 Refrigeration Circuit

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Table of Contents

Startup Checklists ..................................................17

4-1 Introduction 4-2 PS Pre-Startup Checklist 4-3 PS Startup Checklist

Microprocessor Control.........................................19

5-1 Introduction 5-2 Setting the Process Water Temperature 5-3 Power Switch

Routine Maintenance .............................................21

6-1 Lubrication 6-2 Condenser Maintenance

Troubleshooting Guide .......................................... 23

PS QuarterHorse Series Chillers Page 5

Charts and Figures

PS050A Process Pump Curves 10

PS Series Chiller Specifications 10

Ethylene Glycol Curve 13

Overhead Piping 14

Page 6 PS QuarterHorse Series Chillers

1 General Information

1-1 Introduction

PS Series Water Chillers are reliable, accurate, and easy-to-use air cooled chillers designed for use with water/glycol. 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.

A properly installed, operated, and maintained PS Series Chiller will provide many years of reliable operation. To get the most satisfaction from your new chiller, read and follow the instructions in this manual.

1-2 Necessary Documents

The following documents are necessary for the operation, installation and maintenance PS Series Chillers. Additional copies are available from Application Engineering. Familiarize the appropriate personnel with these documents:

; This manual. ; The electrical schematic and connection diagram. ; The operation and installation manuals for installed accessories and options.

1-3 Models Covered

This manual provides operation, installation, and maintenance instructions for PS-025 QuarterHorse Series chillers. Model numbers are on the serial tag. Please know the model number, serial number and operating voltage of your chiller if you need to contact Application Engineering.

The PS QuarterHorse Series chiller model is designated by approximate compressor horsepower. An PS025 chiller has a ¼ hp (187 W) compressor.

PS QuarterHorse Series Chillers Page 7

1-4 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.

Feet

Four leveling feet are mounted to the base of the PS unit.

1-5 Uncrating Your New Chiller

PS Series chillers are shipped mounted on a skid, enclosed in a plastic wrapper, and open crated on all four sides and top.

; Pry the crating away from the skid and remove. Use a pry bar to remove the

blocks securing the unit to the skid.

; Lift the unit off the skid with a fork truck. Insert forks between skid and chiller

from the side until they protrude beyond the opposite side of the unit. The forks must be equidistant from the center line of the unit and the unit must be balanced on the forks.

; Lift slowly and only high enough to clear the skid. Use a pry bar if necessary to

remove the skid from the unit.

; Lower slowly. The unit will land on its feet or casters and can be moved into

position.

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1-6 In the Event of Shipping Damages

Important!

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. Do not return any goods to Application Engineering before the transportation company's inspection and authorization.

; File a claim against the transportation company. Substantiate the claim by

referring to the agent’s report. A certified copy of our invoice is available upon request. The original Bill of Lading is attached to our original invoice. If the shipment was prepaid, write us for a receipted transportation bill.

1-7 If the Shipment is Not Complete

Check the packing list. The apparent shortage may be intentional. Back-ordered items are noted on the packing list. You should have:

; PS Series Chiller ; Bill of Lading ; Packing list ; Operating and Installation packet

Re-inspect the container and packing material to see if smaller items have been missed during unpacking. Determine that the item was not taken from the area before the shipment was checked in. Notify Application Engineering immediately of the shortage.

1-8 If the Shipment is Incorrect

; If the shipment is not what you ordered, contact Application Engineering

immediately. Include the order number and item.

; Hold the items until shipping instructions are received.

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