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Schreiber Engineering 300AC-MRI - User Manual

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***** SPECIAL FEATURE *****
This unit has been modified for
outdoor use
Any reference in this manual
stating “cannot be used for outdoor
installation” does not apply to this unit
The following feature has been added for this
purpose:
Head Pressure Controls
Kit Number: K08.61
Electronic Remote Controls
Kit Number Number: K05.3
With 150 feet of Remote Wire
Kit Number: K09.1F

Questions and Answers

Summary

Water Chiller Starting Checklist

Proper Voltage Verification

Confirm chiller voltage matches power supply for safe and correct operation.

Crank Case Heater Pre-operation

Ensure crank case heater runs for 3 hours prior to use to warm the compressor.

Motor and Pump Rotation Check

Verify fan motors and water pumps rotate in the correct direction to prevent damage.

Service Access Panel Installation

Ensure the service access panel is correctly in place during operation for safety and efficiency.

Temperature Control and Dial Thermometer

Set and verify discharge water temperature using control panel and dial thermometer.

Solid State Control Setup

Setting Temperature and Alarm Points

Configure temperature display and high temperature alarm set points via control buttons.

Remote Solid State Control Wiring

Connect main chiller control panel to remote panel using specified wires and terminal blocks.

Special Control Features

Chilled Water Distribution Piping

Installation Instructions

Special Instructions

Water Pump Operation and Control

Control pump via manual switch; motor features built-in overload protection.

Electrical Control Circuitry

Details series wiring of pressure switches, temperature controller, and compressor switch.

Chilled Water Circuit Diagram

Refrigeration System Overview

Chiller Maintenance Procedures

Fan Motor Specifications

Fan Motor Safety Precautions

Disconnect power before motor work; do not remove doors while unit is powered.

Fan Motor Maintenance Guidelines

No lubrication required; check rotation; clean motor exterior as needed.

Pump Installation and Maintenance

Pump Important Information

Inspect for damage, verify electrical supply, and ensure proper wiring practices.

Pump Installation Guidelines

Covers general installation, location, protection, piping alignment, and foundation needs.

Suction Piping Requirements

Details proper suction lift, pipe sizing, airtight joints, and submergence for optimal performance.

Discharge Piping Arrangement

Specifies inclusion of check valve, gate valve, and sealing for connections.

Motor-To-Pump Shaft Alignment

Instructions for checking and adjusting alignment for frame-mounted units.

Pump Rotation Verification

Confirm correct clockwise rotation; adjust motor leads if rotation is incorrect.

Pump Trouble Shooting Chart

Liquid End Component Identification

Lists and identifies components and materials for the pump's liquid end.

Power End Component Identification

Lists and identifies components and materials for the pump's power end.

Mechanical Seal Specifications

Details various mechanical seal types available and their respective materials.

Service Bulletin: Compressor Terminal Venting

Crank Case Heaters

Crank Case Heater Special Instructions

Follow specific start-up procedures; note high voltage but low wattage.

Maintenance Information

Expansion Valve Notice

Details Alco expansion valve settings and procedures for replacement.

Trouble Shooting - Part I

Trouble Shooting - Part II

Chiller Parts Identification

Parts List

Schreiber Limited Warranty

Appendix

Special Features Overview

Lists and summarizes the special features or modifications of the chiller unit.

MRI Model Specific Features

Details features specific to the MRI model, such as bypass, gauges, and pump upgrade.

ASCO Solenoid Valve Installation and Maintenance

Service Notice and Description

Provides basic information on ASCO solenoid valve series 8016G, its construction, and available types.

Solenoid Valve Operation

Explains normal closed operation, adjustable bleed device, and manual operation features.

Solenoid Valve Installation

Covers electrical connections, mounting, temperature limitations, and best practices for piping.

Solenoid Valve Service and Maintenance

Outlines procedures for cleaning, preventive maintenance, and troubleshooting solenoid valve issues.

ASCO 2-Way Solenoid Valve Instructions

Solenoid Valve Operation Details

Details normal operation, bleed device adjustment, and manual operator functions.

Solenoid Valve Installation and Piping

Covers electrical connections, mounting, temperature limits, and piping guidelines for 2-way valves.

Solenoid Valve Maintenance and Troubleshooting

Procedures for cleaning, disassembly, reassembly, and troubleshooting these solenoid valves.

Schreiber Engineering 300AC-MRI Specifications

General IconGeneral
BrandSchreiber Engineering
Model300AC-MRI
CategoryChiller
LanguageEnglish