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Trane CenTraVac CDHH User Manual

Trane CenTraVac CDHH
124 pages
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X39641418003
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment
can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or
serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.
April 2023
CDHH-SVX003C-EN
Installation, Operation, and Maintenance
CenTraVac™ Water-cooled Chillers
Model CDHH
With Symbio™ Controls
Model: CDHH

Table of Contents

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Trane CenTraVac CDHH Specifications

General IconGeneral
BrandTrane
ModelCenTraVac CDHH
CategoryChiller
LanguageEnglish

Summary

Installation, Operation, and Maintenance

SAFETY WARNING

Essential safety precautions for installation and servicing of HVAC equipment.

Introduction

Overview of the manual and important advisories.

Warnings, Cautions, and Notices

Definitions and importance of safety advisories throughout the manual.

Proper Field Wiring and Grounding

Requirements for safe and correct electrical wiring and grounding.

Personal Protective Equipment (PPE)

Mandates wearing appropriate PPE to prevent injury.

Factory Warranty Information

Follow EHS Policies!

Mandates adherence to company and local environmental, health, and safety policies.

Refrigerant May Be Under Positive Pressure!

Warning about potential explosion hazard from refrigerant pressure.

Do Not Use Non-Compatible Parts or Materials!

Warns against using unauthorized parts to prevent equipment damage.

Unit Nameplate

Serial Number

Explains the function of the unit's serial number for service and parts identification.

Model Number Descriptions

CDHH CenTraVac Chiller Description

Breaks down the meaning of each digit in the chiller's model number.

Pre-Installation

ASHRAE Standard 15 Compliance

Details compliance requirements with ASHRAE Standard 15 for safety.

Unit Shipment

Instructions for inspecting the unit upon arrival for damage and shortages.

Installation Requirements and Contractor Responsibilities

Unit Components

Unit Clearances and Weights

Recommended Unit Clearances

Details necessary clearances around the chiller for service access.

General Weights

Weights (lb)

Lists typical weights in pounds for various configurations.

Installation: Mechanical

Operating Environment

Specifies acceptable ambient conditions for chiller operation.

Foundation Requirements

Details requirements for the chiller's mounting foundation.

Rigging

Provides instructions and warnings for safely rigging and lifting the chiller.

Special Lift Requirements

Unit Isolation

Explains the need for and methods of isolating the unit to minimize vibration.

Isolation Pads

Spring Isolators

Provides guidance on installing and adjusting spring isolators.

Leveling the Unit

Installation: Water Piping

Water Treatment

Emphasizes the importance of proper water treatment to prevent damage.

Valves – Drains and Vents

Instructions for installing drain and vent valves on waterboxes.

Strainers

Required Flow-Sensing Devices

Details the requirement and installation of flow-sensing devices.

Evaporator and Condenser Water Piping

Water Piping Connections

Grooved Pipe Coupling

Details the use of flexible grooved pipe couplings for waterbox connections.

Victaulic Gasket Installation

Screw-Tightening Sequence for Water Piping Connections

Details the correct sequence for tightening flange screws to prevent leaks.

Pressure Testing Waterside Piping

Eddy Current Testing

Recommends eddy current testing for heat exchanger tubes.

Vent Piping

General Requirements

Outlines state, local, and ASHRAE codes for vent line installation.

Vent Line Sizing

Provides guidance on sizing vent lines according to ASHRAE Standard 15.

Vent Line Installation

Proper Refrigerant Vent Line Termination!

Warns about improper termination and its potential consequences.

Trane RuptureGuard

Connection to External Vent Line and Drip Leg

Details how to connect the vent line and install a drip leg.

Vent Line Sizing Reference

ASHRAE Standard 15

Insulation

Unit Insulation Requirements

Lists quantities of insulation needed based on unit size and thickness.

Insulation Thickness Requirements

Specifies the thickness and type of insulation used.

Installation: Controls

Symbio™ 800

Describes the Symbio™ 800 controller, its features, and functions.

Tracer® TU

Explains the Tracer® TU service tool for chiller maintenance and diagnostics.

Control Panel

Installing the Tracer® AdaptiView™ Display

Module Installation

Air-Fi®

Details the installation and routing for the Air-Fi® wireless module.

Electrical Requirements

Installation Requirements

Lists essential steps before starting electrical wiring.

Electrical Requirements

Details specific requirements for wiring the unit.

Trane-supplied Remote Starter Wiring

Standard field power wiring requirements

Power Supply Wiring

Three-Phase Power

Guidelines for connecting three-phase power to the starter panel.

CE for Control Power Transformer Option

CE for Starter or Drive

Power Factor Correction Capacitors (Optional)

Interconnecting Wiring

Starter to Motor Wiring (Remote-Mounted Starters Only)

Starter to Control Panel Wiring

Medium Voltage Motor

Motor Terminal Box

Describes the motor terminal box and its dimensions.

Motor Supply Wiring

Motor Terminals

Details how to connect power wiring to the motor terminals.

System Control Circuit Wiring (Field Wiring)

Chilled Water Pump

Wiring instructions for the chilled water pump circuit.

Condenser Water Proof of Flow

Explains wiring for condenser water flow proof circuits.

Sensor Circuits

Information on connecting various temperature and pressure sensors.

Starter Module Configuration

Operating Principles

General Requirements

General information on operating and maintaining the chiller.

Cooling Cycle

Describes the basic cooling cycle of the chiller.

Duplex Compressor Sequencing

Restart Inhibit

Motor Cooling System

RuptureGuard

EarthWise Purge

Provides general information about the EarthWise Purge system.

Sensors

Start-up and Shutdown

Sequence of Operation

Illustrates common control sequences for chiller operation.

Start-up Sequence of Operation—Wye delta

Ice Building Control

Hot Water Control

Control Panel Devices and Unit Mounted Devices

Unit Control Panel

Describes the main control panel and its interface components.

Daily Unit Start-up

Seasonal Unit Shutdown

EarthWise Purge

Details the sequences of operation for the EarthWise Purge system.

Typical Purge Refrigeration Circuit Operating Cycle

Air Removal

Non-condensable Pump-out Algorithm

Explains the controller's logic for managing pump-out cycles.

Carbon Tank and Regeneration Subsystem

Carbon Regeneration Algorithm

Describes the algorithm used to control carbon tank regeneration.

Carbon Tank Regeneration Sequence

Recommended Maintenance

Record Keeping Forms

Emphasizes the importance of maintaining logs for performance tracking.

Normal Operation

Recommended Compressor Oil Change

Purge System

Details maintenance procedures for the purge system.

Leak Testing

Recommended System Maintenance

General recommendations for system maintenance.

Condenser

Evaporator

Discusses maintenance for the evaporator, focusing on cleaning.

Waterbox and Tubesheet Protective Coatings

Recommends inspection and maintenance of waterbox coatings.

Sacrificial Anodes

Guides on inspecting and replacing sacrificial anodes.

RuptureGuard Maintenance

EarthWise Purge Maintenance

Details maintenance procedures for the EarthWise Purge system.

Weekly Maintenance

Semi-Annual Maintenance

Describes maintenance tasks to be performed semi-annually.

Annual Maintenance

Details annual maintenance procedures.

Waterbox Removal and Installation

Procedure

Step-by-step instructions for waterbox removal and installation.

Torque Requirements and Waterbox Weights

Screw-Tightening Sequence for Waterboxes

Evaporator Waterbox Covers

Details the correct sequence for tightening waterbox cover screws.

Appendix A: Forms and Check Sheets

Unit Start-up/Commissioning

Emphasizes that start-up must be performed by authorized Trane personnel.

Appendix B: Chiller Installation Completion and Request for Trane Service

Appendix C: CenTraVac™ Chiller Start-up Tasks to be Performed by Trane

General

General inspection items to be verified before Trane start-up.

Pre-Start Operations

Procedures to be completed before the actual chiller start-up sequence.

Appendix D: CenTraVac™ Chiller Annual Inspection List

Appendix E: CDHH CenTraVac™ Chiller Operator Log

Notes

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