Tekmar tekmarNet 2 530 Installation & Operation Manual

tekmarNet®2 Thermostat 530

Installation & Operation Manual

D530

12/11

Zoning

Replaces:08/10

D 530 - 12/11

The tekmarNet®2 Thermostat 530 provides operation for:

One Stage Heat One Stage Cool One Fan

•

Introduction

Features

Zone Synchronization Zone Post Purge Intelligent setback (Timer 033) One touch overrides (with optional

User Switch) Auto Heating Cycle Cooling Interlock tekmarNet® 2 communication

compatible Requires 2 wires One stage heat, cool, and fan Pulse Width Modulation CSA C US Approved for use in

USA and Canada Outdoor temperature display Air Group master Backlight Freeze Protection Equipment Exercising Auto heat-cool switchover Room Temperature Limiting Hydronic Cooling Supports Radiant Floor Cooling

•

Note

tN2 Zone Manager, Expansion Module, Wiring Center or House Control required for operation

•

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.

Getting Started

Preparation

tekmar or jeweller screwdriver Phillips head screwdriver

•

Wire Stripper•

Tool s Re qui red

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Materials Required

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2, #6 x 1” Wood Screws 18 AWG LVT Solid Wire

(Low Voltage Connections)

•

Optional Adapter Plate 007 (for installation on 2” x 4” gang box)

•

Installation

Table of Contents

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

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

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

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

Removing The Thermostat Base ...3

Mounting The Thermostat Base ....3

Thermostat Wiring .........................4

Testing the Thermostat Wiring ......5

Mounting the Thermostat ..............6

Cleaning the Thermostat ...............6

Switch Settings ..................................7

User Interface ....................................8

Display...........................................8

Symbols Description .....................8

Button Operation ...........................9

Settings .................................. 10-17

Sequence of Operation .................... 18

Heating Operation ....................... 18

Cooling Operation .......................19

Floor Cooling ...............................20

Fan Operation .............................21

Schedules ...................................22

Scenes (System Override) ..........22

Troubleshooting ...............................23

Error Messages ......................23-24

Frequently Asked Questions .......25

Job Record ..................................26

Technical Data .............................27

Limited Warranty and Product

Return Procedure ........................28

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.

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 max 80% up to 88°F (31°C) decreasing linearly to 50% RH

at 104°F (40°C). Non-condensing environment. No exposure to extreme temperatures beyond 36-122°F (2-50°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 1000 feet (300 m). Strip wire to 3/8” (10 mm) for all terminal connections. Use standard 18 AWG wire for the tN2 connections.

•

Installation Location

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Removing The Thermostat Base

Push tab

Remove thermostat from base

To remove the thermostat base:

Place a small slot screwdriver or similar tool into the slot located on the top of the thermostat.

While pushing down against the plastic tab, pull the thermostat away from the thermostat’s base.

•

Mounting The Thermostat Base

Stud

Switch Box

Thermostat

Base

007 Adaptor

Plate

/4”

(83 mm)

If a single gang switch box is used, an Adaptor Plate 007 is required to mount the thermostat to the box.

Fasten the base of the thermostat to the adaptor plate.

Feed the wiring through the openings in the back of the adaptor plate and thermostat.

Use the upper and lower screw holes to fasten the adaptor plate to the box.

•

Mounted on switch box

If a switch box was not used, mount the thermostat directly to the wall.

Feed the wiring through the openings in the back of the thermostat.

Use screws in the screw holes to fasten the thermostat to the wall. At least one of the screws should enter a wall stud or similar rigid material.

•

Stud

/8”

(60 mm)

screwhole

/8”

(60 mm)

screwhole

Thermostat

Base

Wall

Mounted on wallboard

Thermostat Wiring

The thermostat operates a single heating system zone together with a cooling system and fan.

Power and communication are provided to the thermostat by connecting the tN2 terminals on the thermostat to the tN2 terminals on a tN2 Wiring Center, House Control, Zone Manager or Expansion Module. tN2 terminals are not polarity sensitive.

Connect the Rc, Y and G terminals on the thermostat to the R, Y and G terminals on the cooling equipment.

12 34

1234

tNt 530

530

One Stage Heat / One Stage Cool / One Fan

Mmm YYYY

Lot # 12345

Meets Class B:

Canadian ICES

FCC Part 15

1023-04

tN21tN2

Switch Settings:

For instructions see brochure Use at least 65°C conductors

Setback

Scene

Not used

Unlock

Lock

Oﬀ

Relays: 24V (ac) 2A

tN2 Manager, Module

or Wiring Center

Cooling Equipment

1 Stage Cooling

1 Stage

Fan

G Y R

Fan

Cooling

tN2 tN2

tekmarNet® communication allows for cooling operation from rooms where only 2 conductor wire is available. This requires a Zone Manager 334 or Zone Expansion Module 324 directly wired to the cooling equipment. Power and communication are provided to the 530 thermostat from tN2 terminals on the 334 or 324.

324 or 334

tN2

Rc, Y, G

530

Cooling System

Testing the Thermostat Wiring

Testing th e Power

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If the thermostat display turns on, this indicates that the thermostat is operating correctly and there are no electrical issues. In the event that the display is off, or the display is cycling on and off:

1. Remove the tN2 wires from the thermostat.

2. Use an electrical meter to measure DC voltage between the tN2 terminals. If the DC voltage is 0 V (dc) for 20 seconds, then there is an open or short circuit

in the tN2 wires. If the DC voltage is 0 V (dc) for 10 seconds and then is 23 to 24 V (dc) for 5

seconds, this indicates the wiring is correct.

3. Connect the thermostat to the tN2 wires connected to a zone on a House Control,

Wiring Center, or Zone Manager.

4. If the thermostat display is off, or is cycling on and off, move the thermostat to

the next available zone on the House Control, Wiring Center, or Zone Manager.

If the thermostat display remains permanently on, there may be a fault with the previously tried zone on the House Control, Wiring Center, or Zone Manager.

If the thermostat display continues to be off, or is cycling on and off, there may be a fault on the thermostat.

If a fault is suspected, contact your tekmar sales representative for assistance.

Testing the Heat Zone Output

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1. Press the Mode button to set the mode to Heat.

2. Press the button and set the heating temperature above the current room

temperature. Make sure the display does not show “WWSD”.

3. When the H1 symbol appears on the display, use an electrical meter to check

for voltage on the House Control, Wiring Center, or Zone Manager relay. The voltage is 24 V (ac) for zone valves, and 120 V (ac) for zone pumps when operating correctly.

•

Testing the Cooling Contact

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1. Press the Mode button to set the mode to Cool.

2. Press the button and set the cooling temperature below the current room temperature.

3. When the C1 symbol appears on the display, use an electrical meter to check for continuity on the Rc and Y terminals. If continuity is present, the relay is operating correctly. If continuity is not present, the thermostat has malfunctioned.

Testing the Fan Contact

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1. Press the Fan button to set the Fan to On.

2. When the Fan symbol appears, use an electrical meter to check for continuity on the Rc and G terminals. If continuity is present, the relay is operating correctly.

If continuity is not present, the thermostat has malfunctioned.

Mounting the Thermostat

To place the thermostat back on the mounting base:

Place thermostat bottom tabs on matching mounting base notches.

Pivot top of the thermostat towards wall, ensuring wires clear obstructions.

The top clasp makes a clicking sound when properly closed.

•

Pivot Tab

The thermostats’s exterior can be cleaned using a damp cloth. Moisten the cloth with water and wring out prior to wiping the control. Do not use solvents or cleaning solutions.

Cleaning the Thermostat

Switch Settings

Switches are set to “On” position from the factory, and do not require changing for most applications.

12 34

1234

tNt 530

530

One Stage Heat / One Stage Cool / One Fan

Mmm YYYY

Lot # 12345

Meets Class B:

Canadian ICES

FCC Part 15

1023-04

tN21tN2

Switch Settings:

For instructions see brochure Use at least 65°C conductors

Setback

Scene

Lock

Not used

Unlock

Oﬀ

Relays: 24V (ac) 2A

12 34

1234

Meets Class B:

C di ICES

Switch Settings:

Setback

Scene

Lock

Not used

Unlock

Oﬀ

Switch

Position

Action

SETBACK

The thermostat follows a programmable setback schedule as a schedule member if available. Requires the installation of a Timer 033 to use this feature.

OFF

The thermostat does not follow a programmable setback schedule.

SCENE

The thermostat responds to changes in the scene (system wide manual overrides). Requires the installation of a User Switch 479 to use this feature.

OFF

The thermostat does not respond to scenes.

LOCK ACCESS LEVEL

Locked to ‘User’ access level. Set to Lock when installation completed.

OFF

UNLOCK ACCESS LEVEL

Unlock to allow ‘User’ and “Installer’ access level. Set to Unlock during installation process.

tekmarNet® reset control must also be set to Unlocked (Installer access level).

Not used

OFF

Not used

SECONDARY DISPLAYMAIN DISPLAY

HEAT

Heat is turned on.

COOL

Cooling is turned on.

FAN

Fan is turned on.

SUN

Operating at the occupied (day) temperature.

MOON

Operating at the unoccupied (night) temperature.

AIR GROUP MASTER

Thermostat operates the cooling for a group of thermostats.

CLOCK

Operating on a programmable schedule.

LOCK

Locked to ‘User’ access level.

AWAY

Operating at the Away scene temperature.

tekmarNet

Communication is present.

WARNING SYMBOL

Indicates an error is present.

WARM WEATHER SHUT DOWN

The heating system has been shut off for the summer.

Display

Symbols Description

Switch between

Heat, Cool, Auto

and Off modes

Switch between Auto, On and %

Fan operation

Adjust the current temperature

or displayed setting up or down

User Interface

Button Operation

The Mode button selects between Auto, Cool, Heat, and Off.

Heat Mode: The heating system operates to maintain the Set Room Heat temperature.

Cool Mode: The cooling system operates to maintain the Set Room Cool temperature.

Auto Mode: The heating system operates to maintain the Set Room Heat temperature. Likewise the cooling system operates to maintain the Set Room Cool temperature. The thermostat will prevent the Set Room Heat and the Set Room Cool settings from getting closer than 3°F (1.5°C).

To switch from heating to cooling, the heat must be off for at least a 30 minute interlock period and the actual Room temperature must be at least 3°F (1.5°C) above the Set Room Heat temperature.

To switch from cooling to heating, the cooling must be off for at least a 30 minute interlock period and the Room temperature must be at least 3°F (1.5°C) below the Set Room Cool temperature. Cooling has priority over heating.

Off Mode: The heating and cooling are shut off except heating for freeze protection.

Mode

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Fan

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The fan button manually turns the fan on or off.

Auto: Fan is usually off but can operate with heating or cooling.

On: Fan is on all the time.

10 to 90%: Fan operates a minimum of this percentage each hour.

Press the or the button to select the room temperature. The display indicates whether the “HEAT” or the “COOL” temperature is being changed.

Use the or button to adjust temperature.

If in Auto mode, press the Mode button to toggle between Heat or Cool temperature adjustment.

Room or Temperature

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+ 19 hidden pages

Tekmar tekmarNet 2 530 Installation & Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual