tekmar 519 Installation

519_D

Radiant Thermostat 519

Installation & Operation Manual

Introduction

The Radiant Thermostat 519 accurately controls the room and/or floor temperature for a hydronic heating zone using Pulse Width Modulation (PWM) technology. Simple up and down buttons and a display with large type make this thermostat easy to read and use. A Slab Sensor 079 is included to measure floor temperature to protect the floor from overheating and enhance comfort. This easy to install thermostat is a direct replacement for the tekmar Thermostat 509.

03/13

Zoning

Replaces: New

Energy Saving Features

Auto Heating Cycle•

Additional Features

Radiant Floor Heating

• Pulse Width Modulation

• Floor & Air Temperature Control

• Outdoor & Floor Temperature

• Display

Backlight

• Freeze Protection

• Includes Slab Sensor 079

•

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519_D - 03/13

Table of Contents

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Getting Started ...............................2

Installation ...........................................2

Preparation .....................................2

Removing The Thermostat Base ....3

Mounting The Thermostat...............4

Slab Sensor 079 Installation ...........5

Slab Sensor 079 Wiring ..................6

Slab Sensor 079 Testing .................7

Temperature vs. Resistance Table ....7

Thermostat Wiring ..........................9

Testing the Thermostat Wiring ......10

User Interface ....................................11

Home Screen ................................11

Symbols Description .....................11

Sequence of Operation ......................12

Heating Operation .........................12

Programmable Settings .....................13

Troubleshooting .................................14

Error Messages ............................14

Frequently Asked Questions ........15

Technical Data ..............................15

Limited Warranty and Product

Return Procedure .........................16

Getting Started

Congratulations on the purchase of your new tekmar® thermostat. This manual will step through the complete installation, programming and sequence

of operation for this control. At the back, there are tips for control and system troubleshooting.

Installation

Caution

Improper installation and operation of this control could result in damage to the equipment and possibly even personal injury or death. It is your responsibility to ensure that this control is safely installed according to all applicable codes and standards. This electronic control is not intended for use as a primary limit control. Other controls that are intended and certified as safety limits must be placed into the control circuit.

Preparation

Tools Required

tekmar or jeweller screwdriver

• Phillips head screwdriver

•

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Wire Stripper•

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Materials Required

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18 AWG LVT Solid Wire

•

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(Low Voltage Connections)

Installation Location

Choose the placement of the thermostats early in the construction process to enable proper wiring during rough-in.

Consider the following:

Interior Wall.

• Keep dry. Avoid potential leakage onto the control.

• Relative Humidity less than 90%. Non-condensing environment.

• No exposure to extreme temperatures beyond 32-122°F (0-50°C).

• No draft, direct sun, or other cause for inaccurate temperature readings.

• Away from equipment, appliances, or other sources of electrical interference.

• Easy access for wiring, viewing, and adjusting the display screen.

• Approximately 5 feet (1.5 m) off the finished floor.

• The maximum length of wire is 500 feet (150 m).

• Strip wire to 3/8” (10 mm) for all terminal connections.

• Use standard 4 conductor, 18 AWG wire.

•

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Removing The Thermostat Base

To remove the thermostat base:

Locate the tab on the bottom of the

• thermostat.

Push the tab with either your thumb or with

• a screwdriver.

Lift the thermostat front away from the

• thermostat’s base.

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Mounting The Thermostat

Stud

3 1/4”

(83 mm)

Gang Box

Thermostat

Front

Adapter Plate 012

Thermostat

Base

If a single gang box is used:

Adapter Plate 012 is required (sold separately).

• Feed the wiring through the hole in the adaptor plate and the thermostat base.

• Fasten the adaptor plate to the gang box.

• Fasten the base of the thermostat to the adaptor plate.

• Terminate wiring to the wiring strip.

• Push the thermostat front onto the thermostat base.

•

Thermostat

Front

Base

Wall

If mounting directly to the wall:

Drill holes and install the wall anchors.

• Feed the wiring through the large hole in the thermostat base.

• Fasten the thermostat base to the wall using the wood screws to the wall

• anchors.

Terminate wiring to the wiring strip.

• Push the thermostat front onto the thermostat base.

•

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Slab Sensor 079 Installation

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New Installations

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Thin-Set or Thin-Pour Applications

If the floor covering is to be installed over either a thin-set or thin-pour material of sufficient depth, the 079 slab sensor can be placed directly into either the thin-set material or the thin-pour material and covered over. Ensure that the sensor is located in such a position that the attached wire is able to reach to a suitable junction location. Splices within the thin-set or thin-pour should be avoided to ensure trouble

Thin-set

Electric Cables

Tiles

free operation. The sensor should be located mid way between the heating elements to ensure a proper temperature reading.

Thin Floor Coverings (less than 3/8” (10 mm))

If a thin floor covering is to be installed directly to the subfloor, a groove 1/8” (4 mm) wide by 1/16” (2 mm) deep can be cut into the surface of the subfloor to accommodate the wire for the sensor. Ensure that the sensor is located in such a position that the attached wire is able to reach to a suitable junction location. Splices under the floor covering should be avoided to ensure trouble free operation. A groove 3/16” (5 mm) wide by 3/16” (5 mm)

Hardwood

Subfloor

deep by 1-3/4” (45 mm) long should be cut to accommodate the sensor. The sensor should be located mid way between the heating elements to ensure a proper temperature reading.

Thick Floor Coverings (greater than 3/8” (10 mm))

If a thick floor covering is to be installed directly to the subfloor, a groove 1/8” (4 mm) wide by 1/16” (2 mm) deep can be cut into the back of the flooring material to accommodate the wire for the sensor. Ensure that the sensor is located in such a position that the attached wire is able to reach to a suitable junction location.

Splices under the floor covering should be avoided to ensure trouble free operation. A groove 3/16”

Hardwood

(5 mm) wide by 3/16” (5 mm) deep by 1-3/4” (45 mm) long should be cut to accommodate the sensor. The sensor should be located mid way

Subfloor

between the heating elements to ensure a proper temperature reading.

NOTE: If it is not practical to cut a groove in the surface covering, follow the installation method used for thin floor coverings.

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