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Trane GEHE User Manual

Trane GEHE
118 pages
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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.
GEHE 006-060 - 50/60 Hz
A” and later
GEHE 006-060 - 50/60 Hz
GEHE 072-180 - 50/60 Hz
“D” and later
GEHE 072-300 - 50/60 Hz
EXHF 018-070 - 60 Hz
A” and later
EXVF 018-070 - 60 Hz
Installation, Operation,
and Maintenance
Water Source Heat Pump
Axiom™ Horizontal/Vertical
GEHE/GEVE, EXHF/EXVF
½–25 Tons, 60 Hz
March 2012
WSHP-SVX01L-EN

Table of Contents

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Trane GEHE Specifications

General IconGeneral
BrandTrane
ModelGEHE
CategoryHeat Pump
LanguageEnglish

Summary

Installation, Operation, and Maintenance

Warnings, Cautions, and Notices

General Warnings and Precautions

Details types of warnings, cautions, notices, and general safety advice.

Specific Safety Warnings

Highlights critical safety warnings for electrical, PPE, and equipment hazards.

Model Number Descriptions

GEH/GEV Model Number Breakdown

Explains the coding system for GEH/GEV unit model numbers by digit.

EXH/EXV Model Number Breakdown

Details the coding system for EXH/EXV unit model numbers by digit.

Manual Overview

Understanding the Manual Structure

Describes the manual's purpose, and details on unit and compressor nameplates.

Model Number Identification

Explains how model numbers identify unit type, operation, and components.

General Information

Unit Description and Components

Details unit construction, including coils and control system options.

Control System Options

Describes available control options: Basic 24V, Deluxe 24V, Tracer ZN510, and ZN524.

System Input Devices and Functions

Explains the need for thermostats or BAS for unit operation.

Economizer and Heat Options

Covers optional features like waterside economizers, electric heat, and hot gas reheat.

Pre-Installation Procedures

Unit and Jobsite Inspection

Checklists for inspecting units for damage and verifying jobsite readiness.

Jobsite Storage Recommendations

Guidelines for storing units to prevent damage and microbial growth.

Unit Dimensions and Weights

GEH/EXH Clearance Requirements

Specifies required clearances for service access for GEH and EXH models.

GEV/EXV Clearance Requirements

Details required service clearances for GEV and EXV models across various sizes.

GEH/EXH Airflow Configuration Dimensions

Presents dimensional data for GEH/EXH units based on airflow configurations.

GEV Airflow Configuration Dimensions

Specifies dimensional data for GEV units based on airflow configurations.

GEH/EXH Economizer Dimensions

Presents dimensional data for GEH/EXH units with waterside economizer.

GEV Economizer Dimensions

Provides dimensions for GEV units with waterside economizer.

Unit Weights Summary

Lists net and shipping weights for GEH, GEV, EXH, and EXV units.

Weight Distribution for Hanging Units

Illustrates weight distribution for hanging GEH and EXH units for proper installation.

Installation Procedures

General Installation Checks

Provides a checklist for essential steps to ensure successful unit installation.

Electrical Connections and Wiring

Covers main power, electric heat, low voltage wiring, and grounding requirements.

Filter Installation

Describes filter types and installation requirements, noting factory-installed filters.

Ductwork Installation Guidelines

Instructions for supply-air, return-air ductwork, and ducted panels.

Dual Filtration System Installation

Steps for installing a dual filtration system for improved air quality.

Condensate Drain and Pipe Connections

Guidance on condensate drain traps and supply/return pipe connections with flexible hoses.

Water Loop Cleaning and Balancing

Procedure for cleaning the water loop and using balancing kits for flow control.

Waterside Economizer Installation

Economizer Installation Steps (GEH/EXH)

Step-by-step guide for installing the waterside economizer on GEH/EXH units.

Economizer Installation Steps (GEV)

Procedure for installing the waterside economizer on GEV units.

Economizer Wiring and Components

Instructions for wiring the economizer control board, sensors, and valves.

Economizer Piping Insulation and Drain Trap

Guidance on insulating economizer piping and installing a condensate trap.

Economizer Part Numbers

Table listing part numbers for Trane economizer accessories.

Economizer Start-Up Sequence

Start-Up Procedure and Checks

Steps for starting up the economizer, including thermostat settings and refrigerant checks.

Waterside Economizer Valve Specifications

Table detailing specifications for waterside economizing three-way valves.

Electrical Data

Electrical Data (Standard Static Motors)

Table listing electrical data for standard static motor configurations.

Electrical Data (High Static Motors)

Provides electrical data for high static motor configurations.

Electrical Data (ECM Motors)

Lists electrical data for ECM motor configurations.

Electrical Minimum/Maximum Values

Table summarizing minimum and maximum electrical values for various units.

Pre-Start Checklist

System Device Verification Checklist

Comprehensive checklist of system devices to verify before unit energization.

Start-Up Procedures

Initial Unit Start-up Sequence

Step-by-step guide for the initial start-up of the heat pump unit.

Start-Up Checklist and Log

A checklist for contractors to verify system checks and log data before operation.

Operating Pressures and Temperatures

Explains variables affecting refrigerant pressures and provides approximate conditions.

GE Unit Operating Pressures Data

Table detailing operating pressures for GE units during cooling and heating cycles.

Water Pressure Drop

Cooling Water Pressure Drops (GE/EX Units)

Table defining cooling water pressure drops in feet of head for GE and EX units.

Heating Water Pressure Drops (GE Units)

Presents heating water pressure drops in feet of head for GE units.

Water Volume

Water Volume Data for GE/EX Units

Table providing water volume in cubic inches, feet, and gallons for GE and EX units.

Maintenance Procedures

Preventive Maintenance Schedule

Outlines suggested preventive maintenance tasks, including filter inspection and water quality checks.

Filter Sizing Information

Table showing filter sizes in inches and millimeters for various unit models.

Water Quality Guidelines

Table specifying acceptable water quality parameters for heat exchangers.

Condensate Trap Maintenance

Emphasizes maintaining a primed condensate trap for proper operation and preventing issues.

Troubleshooting Guide

Deluxe Controls Diagnostic Indicators

Explains the function of diagnostic LEDs on deluxe control boards for troubleshooting.

Common Troubleshooting Table

Lists common operational problems, causes, and suggested corrections for unit issues.

Wiring Diagrams

Isolation Valve Wiring Connections

Table detailing wiring for Honeywell isolation valves for different control types.

Basic 24V Wiring Diagrams

Wiring diagrams for basic 24V systems across various voltages and phases.

Deluxe 24V Wiring Diagrams

Wiring diagrams for deluxe 24V systems across various voltages and phases.

Tracer ZN510 Wiring Diagrams

Wiring diagrams for Tracer ZN510 systems across various voltages and phases.

Tracer ZN524 Wiring Diagrams

Wiring diagrams for Tracer ZN524 systems across various voltages and phases.

Warranty Information

Standard Warranty Details

Details Trane's standard parts-only warranty duration and conditions.

Extended Warranty Options

Describes the optional extended warranty coverage and its applicability.

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