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Trane RTHD series User Manual

Trane RTHD series
150 pages
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Series R
Helical Rotary Liquid Chillers
With heat recovery option
Models: RTHD
175-450 ton units (60 Hz)
125-410 ton units (50 Hz)
Feb. 2018
RTHD-SVX02H-EN
J99000002020
SAFETY WARNING
Only qualied 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 specic knowledge and training.
Improperly installed, adjusted or altered equipment by an unqualied 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.
Installation, Operation,
and Maintenance

Table of Contents

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Trane RTHD series Specifications

General IconGeneral
BrandTrane
ModelRTHD series
CategoryChiller
LanguageEnglish

Summary

General Information

Unit Identification and Inspection

Details about unit identification, inspection upon delivery, and loose parts inventory.

Unit Description and Model Number Coding

Overview of RTHD units and the model number coding system.

Compressor Nameplate and Component Location

Information on compressor nameplate interpretation and component locations.

General Data Tables

Tables providing general data, dimensions, and flow rates for various units.

Installation Mechanical

Storage and Location Requirements

Precautions for storing and requirements for unit installation location.

Foundation and Vibration Control

Requirements for unit foundation and vibration isolation methods.

Clearances and Ventilation

Minimum space for service and required ventilation in the equipment room.

Water Drainage and Access Restrictions

Considerations for water drainage and access clearance.

Moving and Rigging Procedures

Guidelines for safely moving and rigging the chiller unit.

Lifting and Rigging Procedures

Step-by-step instructions for safely lifting and rigging the unit.

Alternate Moving and Isolation Pad Installation

Alternative moving methods and installation of isolation pads.

Unit Leveling and Water Piping

Procedures for leveling the unit and making water piping connections.

Reversing Water Boxes

Procedures and considerations for reversing water boxes.

Evaporator Pressure Drop Charts

Charts showing water pressure drop for various evaporator configurations.

Condenser Pressure Drop Charts

Charts showing water pressure drop for various condenser configurations.

Pipe Connection and Water System Components

Procedures for pipe connections and lists of piping components.

Condenser Water Regulating Valve and Heat Recovery Parts

Information on condenser valve adjustment and heat recovery parts installation.

Heat Recovery Control and Water Tank Sensor

Control requirements for heat recovery and sensor installation.

Water Treatment and Pressure Gauges

Importance of water treatment and installing gauges/thermometers.

Pressure Relief Valves and Flow Sensing

Requirements for relief valves and flow sensing devices.

Refrigerant Pressure Relief Valve Venting

Regulations and procedures for venting refrigerant relief valves.

Thermal Insulation

Details on optional factory-installed thermal insulation types and requirements.

Waterbox Removal and Installation

Introduction, Important, and Discussion

Purpose, technician qualifications, and overview of rigging for waterboxes.

Rigging Procedure and Safety

Steps for rigging, warnings about heavy objects and eyebolts.

Waterbox Reassembly and Parts Ordering

Steps for waterbox reassembly, torque values, and part ordering.

Safety Hoist Ring Modification and Questions

Warning about hoist ring modification and contact info for support.

Installation Electrical

General Electrical Recommendations and Power Supply

Recommendations for electrical installation, power supply, and wire sizing.

Compressor Motor Phase Sequencing

Verifying and correcting motor phase sequence for proper rotation.

Terminal Lugs and Circuit Breakers

Specifications for terminal lugs and circuit breaker installation.

Y-D Starter Panel Power Wire Routing

Diagram showing power wire routing for a Y-D starter panel.

Solid State Starter Panel Power Wire Routing

Diagram illustrating power wire routing for a solid state starter panel.

Interconnecting Wiring and Pump Controls

Connections for wiring, pump controls, and flow interlocks.

Chilled Water Reset (CWR) and Calculations

Using CWR for setpoint adjustment and calculation methods.

Operator Interface Controls

Programmable Relays and Emergency Stop

Using relays for status indication and emergency stop control functions.

External Auto/Stop Function

Installer requirements for the external Auto/Stop function.

Soft Loading and Base Loading

Preventing rapid capacity changes and options for immediate chiller loading.

Optional Interface Options

Optional interfaces for BAS, LonTalk, setpoints, and outputs.

UC800 Controller Overview and Wiring

Introduction to the UC800 controller, power, and port descriptions.

Communication Interfaces and Rotary Switches

Supported communication interfaces and rotary switch functions.

LED Descriptions and Controls Interface

Explanation of UC800 LEDs, controls interface, and display options.

Main Display and Chiller Operating Modes

Navigating the main display and viewing chiller operating modes.

Alarms and Reports Viewing

Viewing alarms and reports on the Tracer display.

Custom Report Editing

How to add, remove, or reorder items in custom reports.

Equipment Settings and Viewing

How to monitor and change various equipment settings.

Changing Equipment Settings and Keypad Features

Procedures for changing settings and keypad functionality.

Display Settings and Preferences

Options for configuring display settings like format, language, and units.

Data Format, Separator, Time, Units, and Pressure

Settings for data format, date, time, units, and pressure display.

Security Settings and Login/Logout

Managing security settings, enabling/disabling features, and login procedures.

Logging In and Logging Out Procedures

Step-by-step instructions for logging into and out of the system.

TracerTU Service Tool

Information about the TracerTU service tool and its hardware/software requirements.

Operating Principles Mechanical

General Unit Overview and Cooling Cycle

Overview of RTHD units and the basic refrigeration cycle.

Cycle Description

Detailed description of the refrigeration cycle using a pressure-enthalpy diagram.

Compressor Description and Components

Detailed description of the compressor and its physical components.

Compressor Motor and Rotors

Description of the compressor motor and the helical rotary compressor rotors.

Slide Valve Movement and Oil Management

How slide valve movement controls capacity and the oil management system.

Figure 39. Oil Flow Diagram

Diagram illustrating the flow of oil within the RTHD oil system.

Oil Flow Protection

How sensors and diagnostics protect the compressor from oil flow issues.

Oil Filter and Compressor Oil Supply

Information on oil filters and how oil is supplied to bearings and rotors.

Lubricant Recovery and Oil Cooler

How oil is recovered and the function of the oil cooler.

Unit Start-up

Power Up Sequence Overview

Overview of the power-up sequence and TD7 screen displays.

Power Up to Starting and Stopped to Starting

Timing diagrams for compressor energization during power up and stopped states.

Limit Conditions and Seasonal Start-Up

UC800 limit conditions and the procedure for seasonal unit startup.

Series R Start-up Test Log

A log for recording start-up test data, including compressor and unit charges.

Installation Checklist and Procedures

Comprehensive checklist for unit receiving, installation, piping, and electrical wiring.

Pre-Start Check-Out Procedures

Essential checks to perform before initiating the start-up sequence.

Unit Shutdown

Normal Shutdown and Seasonal Shutdown

Procedures for normal and seasonal unit shutdown.

Periodic Maintenance

Maintenance Overview and Weekly Checks

Introduction to preventative maintenance and weekly checks.

Monthly and Annual Maintenance

Tasks for monthly checks and annual maintenance procedures.

Scheduling Other Maintenance and Operating Log

Recommendations for scheduling maintenance and using operating logs.

Chiller Log Entries

Data points to be recorded in the chiller log for analysis.

Settings Menu Overview

Overview of settings available in the operator interface.

Maintenance Procedures

Condenser and Evaporator Cleaning

Procedures for cleaning condenser and evaporator tubes.

Compressor Oil and Sump Level Check

Information on compressor oil, its properties, and checking the sump level.

Oil Loss Precautions and Removal

Warnings about oil loss and procedures for removing compressor oil.

Oil Charging Procedure

Critical steps for filling the compressor oil lines.

Replacing Main Oil Filter and Gas Pump Oil Filter

Procedures for replacing main and gas pump oil filters.

Refrigerant Charge and Freeze Protection

Procedures for refrigerant handling and freeze protection measures.

Diagnostics

Diagnostic Table Overview

Explanation of diagnostic codes, severity, persistence, criteria, and reset levels.

Table 35. Diagnostics Table

A comprehensive table listing all possible diagnostics and their details.

Diagnostics Table Entries

Detailed list of diagnostics, sources, severities, and criteria.

Diagnostics Table Entries

Detailed list of diagnostics, sources, severities, and criteria.

Diagnostics Table Entries

Detailed list of diagnostics, sources, severities, and criteria.

Diagnostics Table Entries

Detailed list of diagnostics, sources, severities, and criteria.

Diagnostics Table Entries

Detailed list of diagnostics, sources, severities, and criteria.

Diagnostics Table Entries

Detailed list of diagnostics, sources, severities, and criteria.

Diagnostics Table Entries

Detailed list of diagnostics, sources, severities, and criteria.

Wiring Schematics

Unit Electrical Data

Information to determine specific electrical characteristics from unit nameplates.

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