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Trane CenTraVac CVHE User Manual

Trane CenTraVac CVHE
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X39641427003
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.
December 2023
CVHE-SVX005C-EN
Installation, Operation, and Maintenance
CenTraVac™ Water-cooled Chillers
Models CVHE, CVHF, and CVHG
With Symbio™ Controls
Model: CVHE
Model: CVHF
Model: CVHG

Table of Contents

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Trane CenTraVac CVHE Specifications

General IconGeneral
BrandTrane
ModelCenTraVac CVHE
CategoryChiller
LanguageEnglish

Summary

Introduction

Warnings, Cautions, and Notices

Explains types of advisories: Warning, Caution, Notice for safety and operational guidance.

Important Environmental Concerns

Discusses chemicals affecting the ozone layer and responsible refrigerant handling.

Important Responsible Refrigerant Practices

Highlights Trane's belief in responsible refrigerant handling and technician certification.

Proper Field Wiring and Grounding

Emphasizes qualified personnel for field wiring and adherence to electrical codes for safety.

Personal Protective Equipment (PPE)

Mandates proper PPE for potential electrical, mechanical, and chemical hazards during service.

Unit Nameplate

Unit Model and Size

Describes how the unit model and size are identified on the nameplate.

Unit Electrical Requirements

Details the electrical specifications for the unit as listed on the nameplate.

Refrigerant Charge and Type

Specifies the correct refrigerant charge and type as indicated on the unit nameplate.

Test and Operating Pressures

Lists the test pressures and maximum operating pressures found on the unit nameplate.

Service Model Number

Describes the service model number's role in identifying unit features for service and parts.

Model Number Descriptions

Pre-Installation

ASHRAE Standard 15 Compliance

Recommends meeting or exceeding ASHRAE Standard 15 for indoor chiller installations.

Unit Shipment

Details inspection of the unit upon arrival for shipping damage and verification of factory charge.

Installation Requirements and Contractor Responsibilities

Lists typical contractor responsibilities for the unit installation process.

Combustible Material Warning

Warns that shrink-wrap is combustible and to avoid open flames and hot sparks.

Storage Requirements

Provides guidelines for storing the chiller, emphasizing protection from elements and freezing.

Equipment Damage from Freezing

Warns that freezing can cause equipment damage, and Trane is not responsible for unheated rooms.

Insulation Damage Prevention

Advises on preventing damage to factory-installed insulation from sunlight or solvents.

Unit Components

Unit Clearances and Weights

Recommended Unit Clearances

Details necessary clearances around the chiller for service and maintenance operations.

NEC Article 110 Clearances

Provides NEC requirements for clearances around unit-mounted starters.

Representative Weights (lb)

Lists representative operating and shipping weights in pounds for 60 Hz chillers.

Representative Weights (kg)

Lists representative operating and shipping weights in kilograms for 60 Hz chillers.

Installation: Mechanical

Operating Environment

Specifies requirements for the operating environment, including temperature and avoiding corrosive fumes.

Foundation Requirements

Details requirements for the chiller mounting surface, emphasizing rigidity and support for full weight.

Rigging Safety

Provides guidelines for safely moving chillers using lifting equipment and proper techniques.

Heavy Object Hazards

Warns about the hazards of lifting heavy objects and ensuring proper equipment rating.

Improper Unit Lift Warning

Alerts to the risks of improper lifting, which can cause unit dropping and serious injury.

Wiring Damage Prevention

Warns that rigging and assembly can damage unit wiring, leading to equipment failure.

Standard Chiller Lift Procedure

Outlines the steps for performing a standard chiller lift using rigging shackles and chains.

Special Lift Requirements

Addresses specific lifting requirements, including oil loss prevention and fork lift use.

Oil Loss During Lifting

Warns about preventing oil migration from the tank during lifting to avoid equipment failure.

Fork Lift Prohibited

Prohibits using a fork lift to move the chiller due to potential equipment or property damage.

Compressor Alignment Caution

Alerts to potential compressor misalignment if lifting is done improperly.

Unit Isolation

Explains the importance of installing isolation pads or spring isolators to minimize sound and vibration.

Isolation Pads Installation

Provides instructions on positioning and installing isolation pads under the chiller feet.

Spring Isolators

Discusses the use of spring isolators for upper-story installations and their placement.

Leveling the Unit

Provides instructions for leveling the chiller to within 1/16 in. (1.6 mm) over its length and width.

Installation: Water Piping

Overview of Water Piping

Outlines the water piping circuits that must be installed and connected to the chiller.

Water Treatment Importance

Emphasizes the importance of proper water treatment to prevent inefficiency and tube damage.

Proper Water Treatment Required

Warns that untreated water can cause scaling, erosion, and corrosion, recommending a specialist.

Water Pressure Gauges Installation

Provides guidance on locating pressure gauge taps for accurate readings.

Valves, Drains, and Vents Installation

Explains the installation of air vents and drain valves on waterboxes, warning against overtightening.

Waterbox Damage from Overtightening

Warns against overtightening or using excessive Teflon tape on waterbox valves to prevent damage.

Waterbox Damage from Hydrostatic Expansion

Advises installing pressure-relief valves in water circuits to prevent damage from hydrostatic expansion.

Strainers for Water Borne Debris

Stresses the need for pipe strainers in water supplies to prevent component damage from debris.

Required Flow-Sensing Devices

Explains the use of paddle switches or flow detection controllers for verifying water flow and protecting the unit.

Paddle Switches Installation

Details the installation of paddle switches, including placement and adjustment.

Water Flow Detection Controller and Sensor Installation

Provides instructions for installing the ifm efector flow detection controller and sensor.

Overtightening Warning for Flow Sensor

Warns against exceeding torque specifications when installing the flow sensor probe to prevent damage.

Vacuum Warning: No Power

Warns against applying electrical power to a unit in a vacuum to prevent motor and compressor damage.

Evaporator Water Piping Connections

Lists evaporator water piping connection sizes for 1-pass, 2-pass, and 3-pass configurations.

Condenser Water Piping Connection Sizes

Lists condenser water piping connection sizes for 2-pass configurations.

Waterbox Locations Important Notice

Warns against swapping marine-style waterboxes due to potential operational impact.

Grooved Pipe Coupling

Details the use of standard flexible grooved pipe couplings for Victaulic connections.

Flange-connection Adapters

Describes flange-to-groove adapters used to convert flanges for grooved-pipe connections.

Never Weld to Cast Boxes Warning

Warns against welding to cast boxes, as it will result in equipment damage.

Piping Connection Leaks Warning

Warns that leaks can occur if seals are not effective, leading to equipment or property damage.

Victaulic Gasket Installation

Provides step-by-step instructions for installing Victaulic gaskets correctly.

Screw-Tightening Sequence for Water Piping

Describes the sequence for tightening screws on flanges to prevent leaks.

Flange Screw Torque Recommendations

Lists recommended torque values for flange screws based on screw size and gasket type.

Pressure Testing Waterside Piping

Outlines procedures and precautions for pressure testing waterside piping.

Eddy Current Testing Recommendation

Recommends eddy current inspection of condenser and evaporator tubes every three years.

Vent Piping

Refrigerant Vent Line General Requirements

Covers general requirements for refrigerant vent lines, including codes, materials, and sizing.

Purge Discharge Requirements

Explains that purge discharge piping must conform to ASHRAE Standard 15 requirements for relief piping.

Vent Line Materials

Discusses compatible materials for vent line systems, including steel, copper, and PVC.

Vent Line Sizing

Details vent line sizing requirements based on local codes and ASHRAE Standard 15 for safe venting.

Vent Line Installation

Provides important guidelines for installing the rupture disk vent line, consulting local codes.

Rupture Disk Damage Warning

Warns that improper torque can damage the rupture disk assembly.

Pressure-Relief Device Discharge Hazard

Warns about the hazard of improper vent-line termination, which can spray refrigerant.

Proper Refrigerant Vent Line Termination

Warns that improper vent line termination can lead to rainwater entry and chiller damage.

Equipment Damage from Vent Line Drip Leg

States that all vent lines must have drip legs, which need periodic draining to prevent overflow.

Vent Line Sizing Reference

Provides reference tables and figures for determining vent line sizes based on "C" values.

Insulation

Unit Insulation Requirements

Covers factory-installed insulation options and requirements for field-installed insulation.

Equipment Damage from Sensor Strain Relief

Warns that failure to remove strain relief with sensor can cause equipment damage.

Evaporator Insulation Requirements

Lists required square footage of insulation for evaporators based on size and thickness.

Insulation Thickness Requirements

Details insulation thickness and types used for different unit parts.

Factory-applied Insulation Details

Describes the factory-applied insulation, its type, and coverage.

Insulation Damage Prevention

Warns about preventing damage to factory-installed insulation from sunlight or solvents.

Installation: Controls

Symbio™ 800 Controller

Describes the Symbio 800 controller as a factory-installed, programmable unit for chiller control.

AdaptiView™ Display

Explains the AdaptiView display as the user interface for operators, technicians, and owners.

Tracer TU Service Tool

Introduces Tracer TU as a service tool required for chiller servicing, upgrades, and configuration.

Tracer TU Laptop Requirements

Lists hardware and software requirements for running Tracer TU on a laptop.

Control Panel Overview

Details the standard control panel assembly, showing low and high voltage areas for wiring.

Installing the Tracer AdaptiView Display

Provides step-by-step instructions for installing the Tracer AdaptiView display and support arm.

Tension in Display Support Arm Warning

Warns about potential injury from unexpected movement of the spring-loaded support arm.

Adjusting the Tracer® AdaptiView™ Display Arm

Guides on adjusting the display arm joints to achieve desired tension and position.

Air-Fi® Wireless Communications

Introduces the Air-Fi wireless communications interface and its installation.

Wi-Fi Module Installation

Introduces the Wi-Fi module and its installation for wireless communication.

Electrical Requirements

Installation Electrical Requirements

Outlines general requirements for electrical installation, including wiring and grounding.

Field Wiring and Grounding Warning

Reinforces the need for qualified personnel and adherence to codes for safe wiring and grounding.

AFD/Starter Component Damage Warning

Warns that debris inside AFD/starter panels can cause shorts and damage.

Hazardous Voltage with Capacitors Warning

Warns of death or injury risk from capacitors if power is not disconnected and they are not discharged.

Personal Protective Equipment (PPE) Required

Reinforces the mandatory use of PPE for electrical safety and hazard prevention.

Live Electrical Components Warning

States that working with live electrical components requires a qualified electrician.

Trane-supplied Starter Wiring

Details standard field power wiring requirements for Trane-supplied starters.

Customer-supplied Remote Starter Wiring

Details field wiring requirements for customer-supplied remote starters.

CT and PT Wire Sizing

Addresses wire sizing for current and potential transformers and separation from other wiring.

Power Supply Wiring

Proper Field Wiring and Grounding

Reinforces the need for qualified personnel and adherence to codes for safe wiring and grounding.

Three-Phase Power Connection

Guides on installing and connecting three-phase power supply wiring to the starter panel.

AFD/Starter Component Damage Warning

Warns that debris inside AFD/starter panels can cause shorts and damage.

Copper Conductors Only Warning

Stresses using copper conductors as equipment is not designed for others, preventing damage.

PFCC Wiring and Overload Sizing

Guides on sizing motor overload protection to account for PFCCs and ensuring proper current detection.

Interconnecting Wiring

Discusses conduit layouts and field installation of interconnecting wiring for remote starters.

Starter to Motor Wiring

Details wiring requirements for connecting the starter to the motor terminal box for remote starters.

Ground Wire Terminal Lugs

Mentions that ground wire lugs are provided in the motor terminal box and starter panel.

Terminal Clamps Usage

Describes terminal clamps used with motor terminals and their purpose.

Wire Terminal Lugs Requirement

Details the requirement for field-supplied wire terminal lugs and their proper sizing.

Component Damage from Incorrect Wiring

Warns that incorrect wiring to terminals can cause catastrophic starter/motor failure.

Bus Bars Usage

Discusses the availability and use of bus bars for connecting starters.

Starter to Control Panel Wiring

Details wiring requirements between the remote-mounted starter and the control panel.

IPC Wiring Separation

Advises maintaining separation between low/high voltage circuits to prevent electrical noise.

10 to 13.8kV Medium Voltage Motor

Hazardous Voltage Warning

Warns about hazardous voltages and the need for power disconnection before servicing.

Motor Terminal Box Description

Describes the steel motor terminal box for field power connection.

Motor Supply Wiring Requirements

Details requirements for motor supply wiring, including shielding and grounding.

Motor Terminals Procedure

Details requirements for field-provided ring-type lugs and their connection to motor terminals.

Motor Terminal Damage Warning

Warns that applying torque to the motor terminal during lug tightening can cause damage.

Ground Wire Terminal Lug

Explains the purpose and connection of the ground wire terminal lug in the motor terminal box.

System Control Circuit Wiring

Unit Control Panel Wiring (120 Vac)

Provides a table detailing 120 Vac unit control panel wiring for various inputs and outputs.

Water Pump Interlock Circuits and Flow Switch Input

Explains water pump interlock circuits and flow switch inputs for proper operation.

Hazardous Voltage Warning

Repeats the warning about hazardous voltages and the need for disconnection before servicing.

Chilled Water Pump Wiring

Details wiring for the chilled water pump contactor and connections.

Chilled Water Proof of Flow Logic

Explains the function of the chilled water proof of flow circuit for chiller operation and shutdown.

Condenser Water Pump Wiring

Details wiring for the condenser water pump contactor and connections.

Condenser Water Proof of Flow Logic

Explains the function of the condenser water proof of flow circuit for chiller operation and shutdown.

Heat Recovery Proof of Flow Logic

Explains the function of the heat recovery proof of flow circuit.

Temperature Sensor Circuits

Covers installation of temperature sensors, including the optional outdoor air sensor.

CWR – Outdoor Option Sensor

Details the outdoor air temperature sensor, its probe, module, and wiring.

Low Voltage/High Voltage Separation

Warns about maintaining separation between low/high voltage circuits to prevent electrical noise.

Optional Control and Output Circuits

Refers to system control wiring for optional circuits based on owner specifications.

Starter Module Configuration

Details checking and configuring starter module settings during start-up commissioning.

Operating Principles

General Requirements

Provides an overview of operation and maintenance information for 50/60 Hz chillers with Symbio 800.

Cooling Cycle

Describes the basic cooling cycle, including refrigerant distribution, vaporization, and compression stages.

CVHE and CVHG 3-Stage Compressor

Explains the operation of the 3-stage compressor, including gas flow and economizer function.

CVHF 2-Stage Compressor

Explains the operation of the 2-stage compressor, including gas flow and economizer function.

Compressor Lubrication System

Details how oil is pumped, filtered, and sent to compressor bearings for lubrication.

Motor Cooling System

Explains how compressor motors are cooled with liquid refrigerant.

Tracer® AdaptiView™ Display Function

Describes the AdaptiView display's role in providing operational information and diagnostics.

Start-Up and Shutdown

Sequence of Operation Overview

Introduces common control sequences used in CenTraVac™ chillers.

Software Operation States

Presents a diagram of the five possible software states and transitions.

Start-up Sequence of Operation—Wye-delta

Details the Wye-delta start-up sequence, including pump verification and compressor start.

Normal Chiller Stop Sequence

Explains how the chiller operates in Delta configuration and modulates vanes for setpoint.

Panic Stop Sequence

Describes the panic stop sequence initiated by an immediate stop command.

Ice Building Control

Explains how to enable/disable the Ice Building feature and its operational parameters.

Free Cooling Cycle Explanation

Explains how the chiller functions as a heat exchanger using free cooling, and its operational requirements.

Free Cooling (FRCL) Enable/Disable

Provides steps to enable and disable Free Cooling mode.

Hot Gas Bypass (HGBP) Control

Explains the HGBP control option for stable operation under minimum load conditions.

Hot Water Control

Describes using the chiller for heating as a primary mission with hot water temperature control.

Heat Recovery Cycle Operation

Describes heat recovery as salvaging heat for beneficial use, like simultaneous heating and cooling.

Auxiliary Condensers Function

Describes auxiliary condensers used for preheat functions, noting their smaller size.

Daily Unit Start-Up Procedure

Provides a step-by-step guide for daily unit start-up.

Seasonal Unit Start-Up Procedure

Provides steps for seasonal unit start-up, including draining and filling procedures.

Daily Unit Shutdown Procedure

Provides steps for daily unit shutdown.

Seasonal Unit Shutdown Procedure

Details procedures for seasonal unit shutdown, emphasizing control power.

Recommended Maintenance

Hazardous Voltage with Capacitors Warning

Repeats the capacitor hazard warning and safety precautions.

Hermetic Integrity Check

Warns that frequent purging may indicate leaks, requiring investigation to prevent chiller damage.

Non-Compatible Parts Warning

Warns against using non-genuine Trane parts to avoid damage and maintain warranty.

Record Keeping Importance

Emphasizes the importance of regular record keeping for identifying trends and diagnosing issues.

Normal Operation Readings

Lists normal operating readings for evaporator pressure, condenser pressure, and oil temperatures/pressures.

Recommended Maintenance Schedule

Details recommended daily, 3-monthly, 6-monthly, and annual maintenance tasks.

Compressor Oil Change Recommendation

Provides guidance on recommended compressor oil changes and oil analysis.

Chiller Damage from Water in Tubes

Warns that water presence during evacuation can cause freezing damage.

Refrigerant Charge Safety

Covers refrigerant charging procedures and safety warnings.

Equipment Damage from Mixing Refrigerants/Oils

Repeats the warning about mixing refrigerants or oils causing damage.

Leak Testing Procedures

Details procedures and warnings for safe leak testing.

Explosion Hazard During Leak Testing

Warns of explosion hazards if safe leak test procedures are not followed.

Hazardous Pressures Warning

Warns about violent explosions due to hazardous pressures and safe heating methods.

Condenser Maintenance

Discusses condenser tube fouling and cleaning methods (mechanical/chemical).

Evaporator Maintenance

Discusses evaporator maintenance, typically requiring cleaning every three years.

Waterbox and Tubesheet Protective Coatings Inspection

Recommends inspecting coated waterboxes/tubesheets within months of operation for defects.

Sacrificial Anodes Maintenance

Discusses replacement schedules for sacrificial anodes and inspection intervals.

Unit Corrosion Damage Warning

Warns that improper chemical cleaning can cause corrosion damage to the unit and tubes.

Waterbox Removal and Installation

Qualified Technicians Required

Stresses that only qualified technicians should perform waterbox removal and installation.

Lifting Technique Discussion

Discusses recommended hoist ring/clevises and lifting techniques, emphasizing proper training and inspection of devices.

Heavy Objects Lifting Hazard

Warns about the risks of heavy objects falling, causing serious injury or death.

Straight Vertical Lift Warning

Warns that improper vertical lifts can cause eyebolts to break, leading to injury from dropping objects.

Waterbox Removal Procedure

Outlines the step-by-step procedure for removing and installing waterboxes.

Overhead Hazard Warning

Warns against standing below suspended heavy objects due to the risk of falling objects.

Torque Requirements and Waterbox Weights

Provides torque requirements for waterbox screws and notes SAE fastener usage.

Waterbox Weights Data

Provides weights and lifting connection details for various waterbox types and sizes.

Connection Devices Information

Lists available connection devices and their part numbers for ordering.

Appendix A: Forms and Check Sheets

Unit Start-Up and Commissioning

States that start-up must be performed by Trane or an authorized agent with advance notification.

Appendix B: Chiller Installation Completion and Request for Trane Service

Form Submission Requirement

Requires submitting this form to the Trane Service Agency for start-up.

Chiller Installation Checklist

Checklist section for verifying chiller placement and piping.

Piping Installation Checklist

Checklist section for verifying water piping connections for chiller, AHUs, pumps, and cooling towers.

Wiring Installation Checklist

Checklist items related to starter installation and wiring compliance.

Installation Expenses Disclaimer

States that Trane will not pay for expenses due to improper installation.

Equipment Room Safety Checklist

Checklist section for equipment room safety features.

Owner Awareness Checklist

Checklist section for owner instructions and refrigerant MSDS.

Request for Trane Service

Section for requesting Trane service for start-up.

Appendix C: Chiller Start-Up Tasks

General Installation Inspection

Checklist section for general inspection items before start-up.

Pre-Start Operations Checks

Checklist section for pre-start operational checks.

Electrical and Controls Checks

Checklist item for checking electrical and controls.

Vacuum Warning: No Electrical Power

Repeats warning about applying power in a vacuum to prevent motor/compressor damage.

Preparation for Start-up Checklist

Checklist section for preparing the system for start-up.

Chiller Start-up Checklist

Checklist section for chiller start-up procedures.

Appendix D: Chiller Annual Inspection List

Compressor/Motor Inspection

Lists inspection items for the compressor and motor.

Starter or AFD Inspection

Lists inspection items for the starter and AFD.

Oil System Inspection

Lists inspection items for the oil system.

Condenser Inspection

Lists inspection items for the condenser.

Evaporator Inspection

Lists inspection items for the evaporator.

Heat Recovery Inspection

Lists inspection items for heat recovery components.

Control Circuits Inspection

Lists inspection items for control circuits.

Leak Test Chiller Inspection

Lists inspection items related to leak testing.

Purge Unit Inspection

Lists inspection items for the purge unit.

Exterior Inspection

Lists inspection items for the chiller's exterior.

Optional Accessories Inspection

Lists inspection items for optional accessories.

Appendix E: Chiller Operator Log

Evaporator Log Parameters

Lists parameters to log for the evaporator.

Condenser Log Parameters

Lists parameters to log for the condenser.

Compressor Log Parameters

Lists parameters to log for the compressor.

Purge System Log Parameters

Lists parameters to log for the purge system.

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