Carrier 19XL User Manual
Start-up, operation, and maintenance instructions, Safety considerations
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19XL
50/60 Hz
Hermetic Centrifugal Liquid Chillers
with HCFC–22 and HFC–134a
Start-Up, Operation, and Maintenance Instructions
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and
without incurring obligations.
PC 211 Catalog No. 531-94512-94
Form 19XL-3SS
Replaces: 19XL-2SS
Copyright © Carrier Corporation 1994
Safety Considerations
Centrifugal liquid chillers are designed to provide safe and reliable service when
operated within design specifications. When operating this equipment, use good
judgement and safety precautions to avoid damage to equipment and property or injury
to personnel.
Be sure you understand and follow the procedures and safety precautions contained
in the machine instructions as well as those listed in this guide.
®
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Table of contents
Document Outline
- Contents
- Safety Considerations
- Introduction
- Abbreviations and Explanations
- Machine Familiarization
- Refrigeration Cycle
- Motor/Oil Refrigeration Cooling Cycle
- Lubrication Cycle
- Starting Equipment
- Controls
- Definitions
- General
- PIC System Components
- LID Operation and Menus
- PIC System Functions
- Safety Controls
- Default Screen Freeze
- Motor Cooling Control
- Ramp Loading Control
- Capacity Override
- High Discharge Temperature Control
- Oil Sump Temperature Control
- Oil Cooler
- Remote Start/Stop Controls
- Spare Safety Inputs
- Condenser Pump Control
- Condenser Freeze Prevention
- Tower-Fan Relay
- Auto. Restart After Power Failure
- Water/Brine Reset
- Demand Limit Control, Option — (Requires Optional 8-Input Module)
- Surge Prevention Algorithm
- Surge Protection
- Lead/Lag Control
- Ice Build Control
- Attach to Network Device Control
- Service Operation
- Start-Up/Shutdown/Recycle Sequence
- Before Initial Start-Up
- Job Data Required
- Equipment Required
- Using the Optional Storage Tank and Pumpout System
- Remove Shipping Packaging
- Open Oil Circuit Valves
- Torque All Gasketed Joints
- Check Machine Tightness
- Refrigerant Tracer
- Leak Test Machine
- Standing Vacuum Test
- Machine Dehydration
- Inspect Water Piping
- Check Optional Pumpout Compressor Water Piping
- Check Relief Devices
- Inspect Wiring
- Carrier Comfort Network Interface
- Check Starter
- Oil Charge
- Power Up the Controls and Check the Oil Heater
- Set Up Machine Control Configuration
- Input the Design Set Points
- Input the Local Occupied Schedule (OCCPC01S)
- Selecting Refrigerant Type
- Input Service Configurations
- Check Optional Pumpout System Controls and Compressor
- High Altitude Locations
- Charge Refrigerant into Machine
- Initial Start-up
- Preparation
- Manual Operation of the Guide Vanes
- Dry Run to Test Start-Up Sequence
- Check Rotation
- Check Oil Pressure and Compressor Stop
- Calibrate Motor Current Demand Setting
- Check Machine Operating Condition
- To Prevent Accidental Start-Up
- Instruct the Customer Operator
- Cooler-Condenser
- Optional Storage Tank And Pumpout System
- Motor Compressor Assembly
- Motor Compressor Lubrication System
- Control System
- Auxiliary Equipment
- Describe Machine Cycles
- Review Maintenance
- Safety Devices And Procedures
- Check Operator Knowledge
- Review the Start-Up, Operation, and Maintenance Manual
- Operating Instructions
- Pumpout and Refrigerant Transfer Procedures
- General Maintenance
- Weekly Maintenance
- Scheduled Maintenance
- Service Ontime
- Inspect the Control Center
- Check Safety and Operating Controls Monthly
- Changing Oil Filter
- Oil Specification
- Oil Changes
- Refrigerant Filter
- Oil Reclaim Filters
- Inspect Refrigerant Float System
- Inspect Relief Valves and Piping
- Compressor Bearing and Gear Maintenance
- Inspect the Heat Exchanger Tubes
- Water Leaks
- Water Treatment
- Inspect the Starting Equipment
- Check Pressure Transducers
- Optional Pumpout System Maintenance
- Ordering Replacement Chiller Parts
- Troubleshooting Guide
- Overview
- Checking the Display Messages
- Checking Temperature Sensors
- Checking Pressure Transducers
- Control Algorithms Checkout Procedure
- Control Test
- Control Modules
- Notes on Module Operation
- Processor Module (PSIO)
- Starter Management Module (SMM)
- Options Modules (8-Input)
- Replacing Defective Processor Modules
- Solid-State Starters
- Physical Data
- Initial Start-Up Checklist for 19XL Hermetic Centrifugal Liquid Chiller
- List of Tables
- List of Figures