QWF3X166F240VAL INSTALLATION AND OPERATION

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TABLE OF CONTENTS

Safety Information ............................................................................................................................... iii

Section 1. Introduction ........................................................................................................................ 1

How To Use This Manual ................................................................................................................ ......... ...1

Features ............................................................................................................................................. ....... 1

For Additional Help ........................................................................................................................... ......... .1

Before You Begin .............................................................................................................................. ..........1

NEVER Do the Following: .................................................................................................................. ......... .2

ALWAYS Do the Following: ............................................................................................................... .......... .2

Section 2. Designing the Installation ............................................. ............... .................................3

Sketch the System Layout .............................................................................. ......... ...................................3

Control Devices ..........................................................................................................................................4

Thermostat Requirements ................................................................................. ......... ................................4

Locating the Thermostat .................................................................................... ......... ...............................4

Floor Construction .............................................................................................. ......... ...............................4

Design Clearances ................................................................................................ ........ .............................4

Section 3. Installation .................................................................................. .......... .............................5

Preparing the Job Site ................................................................................................ ......... .......................5

What You Will Need ............................................................................................................ ......... ...............5

3.2 Electrical Installation ............................................................................................................. ...... ........6

Step 1. GFCI Installation ...................................................................................................... ......................6

Step 2. Multiple Mat Installations ........................................................................................ ......... .............6

Step 3. Install Electrical Boxes ..................................................................................................... ..............6

Step 4. Bottom Plate Work................................................................................................... ......................6

Step 5. Install Power Lead Conduit ....................................................................................... ......... ............6

3.3 Installing the Units ............................................................................................................ ...... .............8

Installation Sequence ............................................................................................................... ..................8

Step 1. Inspect and Test Mats .................................................................................................. .................8

Step 2. Install Lower Vapor Barrier ............................................................................................ ......... ........8

Step 3. Install Underlayment ................................................................................................... ...................8

Step 4. Install Thermostat Sensor .......................................................................................... .....................9

Step 5. Prepare Mats ........................................................................................................... ......................9

Step 5a. 2-in-1 Radiant Film Mat Preparations....................................................................................... .... .9

Step 6. Install Mats .............................................................................................................. ....................10

Step 7. Recheck Mat Resistance ............................................................................................ ........ ..........10

Step 8. Connect the Electrical Leads ...................................................................................... .................10

Installation & Owner’s Guide i

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INSTALLATION AND OPERATION - Page 6