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Raychem HWAT-ECO - User Manual

Raychem HWAT-ECO
106 pages
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HWAT-ECO (Version 2)
R
Electronic Temperature Control Unit
For energy saving operation of HWAT-R/-M/-L heating cable
Mikroprozessorgesteuerter Temperatursteller
Für den energiesparenden Betrieb der
Temperaturhaltebänder HWAT-R/-M/-L
Modulateur de puissance électronique
Pour une utilisation économique des rubans HWAT-R/-M/-L
Tyco C 9278e HWAT-ECO 22.02.2002 14:12 Page 1

Table of Contents

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Summary

1. DESCRIPTION

1.1 Purpose

Explains the HWAT-ECO control unit's purpose and features for hot water systems and energy savings.

1.2 Technical data

Lists the technical specifications, including switching capacity, voltage, cable entries, weight, dimensions, and protection level.

1.3 Care and maintenance

Provides instructions for cleaning the unit and what to do in case of defects, advising professional service.

2. INSTALLATION

2.1 Disassembling the unit

Details how to safely remove the top lid of the HWAT-ECO unit for access to internal components.

2.2 Wall mounting instructions

Describes the two mounting options: wall mounting using screws and DIN-rail mounting.

2.3 Installation of cables and sensors

Covers wiring diagrams, minimum power cable sizing, heating cable, sensor cable, alarm wiring, and BMS connection.

3. OPERATION

3.1 Quick install

Guides the user through initial setup steps like language, date/time, cable type, length, and ambient temperature settings.

3.2 Menu overview

Provides a structured list of all available menus and their options for configuring the unit.

3.3 Menu explanation

Details the function and usage of each menu option, including setup, timer programs, and advanced settings.

4. ERROR;ALARMS and TROUBLESHOOTING

5. APPENDIX

5.1 Country code

Explains how to select a country to set standard insulation thickness values based on pipe diameter and country.

5.2 Pipe Size, Insulation and Temperature

Details how pipe size and insulation affect achieved temperatures and how the unit compensates with a power correction factor.

5.3 Legionella prevention by temperature shock

Explains how to use the unit for legionella prevention by increasing water temperature to kill bacteria.

5.4 Checklist for problem-free installation and safe operation

Provides a checklist for ensuring correct installation and safe operation of the heating system.

5.5.1 Diagrams A, B, C, D, E, F, G and H, Installation

Illustrates various installation aspects, including sensor positioning, wiring diagrams, and control unit connections.

5.5.2 Diagrams I, Pre-programs

Displays graphical representations of the 8 default timer programs for different building types.

Raychem HWAT-ECO Specifications

General IconGeneral
Accuracy±1°C
Protection ClassClass II
Housing MaterialPlastic
Storage Temperature-20°C to +65°C (-4°F to +149°F)
ApprovalsCE
OutputRelay

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