tekmar 482 User Manual

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Installation & Operation Manual

D 482

tN4 Gateway 482

01/12

Accessories

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

• Drivers available for leading home automation

• CSA C US approved for US and Canada

systems

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input

115 V (ac)

Power Supply

 

 

On

Power

 

1

 

Reporting Enable

 

 

Power-On State

Tx

 

O

 

 

Rx

 

 

tN4 Bus 0

 

 

tN4 Bus 1

 

 

tN4 Bus 2

o

not testing

tN4 Bus 3

red

testing

red

testing paused

 

tN4 Bus 4

Test

 

 

Designed and assembled in Canada by

 

tekmar Control Systems Ltd.

 

tektra 1017-02

 

tN4 Gateway 482

Power: 115 V ±10% 60 Hz 45 mA

 

 

RS 232

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Do not apply power

 

 

RS 232

1

2

3

4

5

6

7

8

9

10 11 12

 

Power

 

0

 

1

 

2

 

3

 

4

 

N

L

C0

tN4

C1

tN4

C2

tN4

C3

tN4

C4

tN4

 

Input/Output

Input/Output

Input/Output

Input/Output

Input/Output

tN4 Boiler

tN4

tN4

tN4

tN4

Bus 0

Bus 1

Bus 2

Bus 3

Bus 4

Date Code

H2051A

Input/Output

RS 232

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© 2012

D 482 - 01/12

Table of Contents

Wiring ............................................................................

2

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

10

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

2

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

10

Caution ...................................................................

2

Controllable Equipment.........................................

10

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

2

Other Equipment...................................................

10

Mounting .................................................................

3

Incompatible Equipment .......................................

10

Electrical Drawings .............................................

3-7

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

10

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

8

tekmarNet® Home Automation Protocol ................

11

Cleaning..................................................................

8

Thermostat Addressing .........................................

11

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

9

Technical Data ..............................................................

12

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

9

Limited Warranty ..........................................................

12

Wiring

Wiring Symbols

 

 

 

Do not apply power to these terminals.

 

Earth ground

 

 

 

 

 

 

Serious control damage will result.

 

 

 

 

 

 

 

 

 

 

 

 

Definitions

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.

 

Caution: Refer to accompanying documents

 

Caution: Refer to accompanying documents

INSTALLATION

Local level appliances

CATEGORY II

 

 

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.

© 2012

D 482 - 01/12

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tekmar 482 User Manual

Mounting

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

Lift the front cover up and

Loosen the screws at the

The wiring cover pulls straight

away from the control.

front of the wiring cover.

out from the wiring chamber.

 

 

13 Mounting holes

 

 

Control

 

 

release

 

 

clip

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Control release clip

 

 

 

There are 10 conduit knock-outs at the back

 

 

 

 

 

 

and bottom of the wiring chamber.

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

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

The control lifts up and The base is ready for mounting. away from the base.

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.

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.

Included Parts

• One tN4 Gateway 482

• One Job Record J 482

One RJ45 to DB9 Adapter

One Plastic Bag for Brochures

One Data Brochure D 482

One Screwdriver

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

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.

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© 2012

D 482 - 01/12

Electrical Application

482 E1

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

Power

Tx

Rx

tN4 Bus 0

tN4 Bus 1

tN4 Bus 2

tN4 Bus 3

tN4 Bus 4

tN4 Gateway 482

RS 232

 

 

 

 

Do not apply power

 

1

2

3

4

5

6

7

8

9

10 11 12

Power

 

0

 

1

 

2

 

3

4

N

L

C0

tN4

C1

tN4

C2

tN4

C3

tN4

C4 tN4

G

N

L

On

1

Reporting Enable

Power-On State

O

 

 

 

o

not testing

 

 

 

 

 

 

 

 

red

testing

 

 

 

 

red

testing paused

 

 

Test

 

 

Designed and assembled in Canada by

 

tekmar Control Systems Ltd.

 

tektra 1017-02

 

 

Power: 115 V ±10% 60 Hz 45 mA

Code

 

 

 

 

 

 

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

Date

 

 

RS 232

 

H2051A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Category 5 Cable (< 150 feet, 45 m)

Adapter

To RS 232 Serial Port

jumper cut

relay, isolate To

 

Feb 2005

 

Lot 01

 

tNt 542

 

One Stage Heat

/

 

 

993-02

jumper cut

relay, isolate To

 

Feb 2005

 

Lot 01

 

tNt 542

 

One Stage Heat

/

 

 

993-02

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.

© 2012

D 482 - 01/12

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