tekmar 482 User Manual

Installation & Operation Manual

tN4 Gateway 482

Accessories

D 482

01/12

Replaces: 12/11

Introduction

The tekmarNet®4 Gateway 482 provides RS 232 serial communication between tekmarNet® Thermostats and third party automation systems. The third party automation system is able to monitor and adjust the thermostat’s heating, cooling, and ventilation fan settings. Through the use of third party device drivers written for this product, tekmarNet

systems are

fully integrated into home automation systems.

Features

tekmarNet®4 and tekmarNet®2 Compatible

• CSA C US approved for US and Canada

•

Power

Drivers available for leading home automation

• systems

Reporting Enable

Power-On State

Oﬀ

Input

115 V (ac)

Power Supply

tN4 Gateway 482

RS 232

Power

tN4

Do not apply power

tN4

tN49C3

tN411C4

tN4 Bus 0

tN4 Bus 1

tN4 Bus 2

tN4 Bus 3

tN4 Bus 4

Designed and assembled in Canada by tekmar Control Systems Ltd. tektra 1017-02

Power: 115 V ±10% 60 Hz 45 mA

Caution: Signal wiring must be rated at least 300 V.

tN4

Test

RS 232

oﬀ red red

not testing testing testing paused

Date Code

H2051A

Input/Output

RS 232

Input/Output

tN4 Boiler

Bus 0

Input/Output

tN4

Bus 1

Input/Output

tN4

Bus 2

Input/Output

tN4

Bus 3

Input/Output

tN4

Bus 4

Table of Contents

Wiring ............................................................................2

Wiring Symbols & Definitions .................................2

Caution ...................................................................2

Choosing a Location ...............................................2

Mounting .................................................................3

Electrical Drawings .............................................3-7

Wiring the tN4 Gateway ..........................................8

Cleaning ..................................................................8

Troubleshooting the Wiring .....................................9

Testing the Control ..................................................9

Sequence of Operation .................................................10

Before You Start ....................................................10

Controllable Equipment .........................................10

Other Equipment ................................................... 10

Incompatible Equipment ....................................... 10

LED Status Indicators ...........................................10

tekmarNet

Thermostat Addressing ......................................... 11

Technical Data .............................................................. 12

Limited Warranty ..........................................................12

Home Automation Protocol ................ 11

Wiring

Wiring Symbols

Do not apply power to these terminals.

Serious control damage will result.

Deﬁ nitions

The following defined terms and symbols are used throughout this manual to bring attention to the presence of hazards of various risk levels, or to important information concerning the life of the product.

Earth ground

– Caution: Refer to accompanying documents

INSTALLATION

CATEGORY II

– Local level appliances

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. Do not attempt to service the control. Refer to qualified personnel for servicing. Apart from any field replaceable fuse(s) there are no user serviceable parts. Attempting to do so voids warranty and could result in damage to the equipment and possibly even personal injury or death.

Choosing a Location

The location of the tN4 Gateway is important. To ensure proper wiring during rough in, select an appropriate location for the control early in the construction process. Consider the following:

Do not expose the tN4 Gateway to temperatures beyond

• 32 to 122°F (0 to 50°C).

Keep dry. Avoid potential leakage onto the control.

• Relative humidity ≤ 92% to 104°F (40°C), down to 50%

• above 104°F (40°C).

Provide adequate ventilation.

• Keep away from equipment, appliances or other sources

• of electrical interference.

Mount the enclosure to a solid backing.

• Provide easy access for wiring and viewing.

•

Mount approximately 5 feet (1.5 m) off the finished floor. Mount near the zone managers, reset modules, tN4

• thermostats, tN4 setpoint controls, and mixing expansion modules. The total wire length of each tN4 bus cannot exceed 5000 feet.

Each tN4 bus consists of a pair of wires (tN4 and C).

• The tN4 Gateway can accept up to 5 tN4 buses.

• Use a Category 5 cable up to or less than 150 feet (45

• m) in length to connect the tN4 Gateway to the home automation equipment.

Mounting

Press down at the fingertip grips on top of the front cover and pull out and down.

Remove the safety dividers from the wiring chamber by pulling them straight out of their grooves.

The control can be mounted on a standard DIN rail. First remove the control from its base and then, using the hooks and spring clip on the back of the control, mount it onto the DIN rail. This will be a popular option for those who prefer to mount the control inside a larger electrical panel.

Lift the front cover up and away from the control.

Control release clip

Press the control release clip on the base inside the wiring chamber and slide the control upwards.

The wiring can enter the bottom or the back of the enclosure. Knock-outs provided in the base allow the wiring to be run in conduit up to the enclosure. The base also has holes that line up with the mounting holes of most common electrical boxes.

Loosen the screws at the front of the wiring cover.

The control lifts up and away from the base.

The wiring cover pulls straight out from the wiring chamber.

13 Mounting holes

Control release

clip

There are 10 conduit knock-outs at the back

and bottom of the wiring chamber.

The base is ready for mounting.

Included Parts

One tN4 Gateway 482

• One RJ45 to DB9 Adapter

• One Data Brochure D 482

•

Electrical Drawings

The electrical drawing examples on the following pages show the 482 in common applications. These drawings have a brief explanation of what is being operated in each system. Choose the components in your system and use the drawings as a guide to aid in wiring your system. These are only concept drawings, not engineered drawings. They are not intended to describe a complete system nor any particular system. It is up to the system designer to determine the necessary components for and configuration

One Job Record J 482

• One Plastic Bag for Brochures

• One Screwdriver

•

of the particular system being designed including additional equipment, isolation relays (for loads greater than the controls specified output ratings) and any safety devices, which in the judgment of the designer are appropriate in order to properly size, configure and design that system and to ensure compliance with building and safety code requirements.

Electrical Application 482 E1

Description: tN4 network of tekmarNet® thermostats are connected to a tN4 Gateway 482.

Power

tN4 Gateway 482

RS 232

Power

tN4

Do not apply power

tN4

tN49C3

tN411C4

tN4 Bus 0

tN4 Bus 1

tN4 Bus 2

tN4 Bus 3

tN4 Bus 4

tN4

Test

Designed and assembled in Canada by tekmar Control Systems Ltd. tektra 1017-02

Power: 115 V ±10% 60 Hz 45 mA

Caution: Signal wiring must be rated at least 300 V.

RS 232

Reporting Enable

Power-On State

oﬀ

not testing

red

testing

red

testing paused

Oﬀ

Date Code

H2051A

Category 5 Cable (< 150 feet, 45 m)

G N

Adapter

To RS 232 Serial Port

To isolate relay,

cut jumper

tNt 542

One Stage Heat

993-02

Feb 2005 Lot 01

cut jumper

tNt 542

One Stage Heat

993-02

Feb 2005 Lot 01

Refer to Thermostat wiring brochures for complete wiring schematic. Note: There is a limit of 24 devices per tN4 bus. Additional thermostats can be wired to the next available bus up to a

maximum of 96 devices per system.

+ 8 hidden pages