Tekmar 541 Manuale utente

Table of Contents

Display........................................................2

Symbols Description...................................2

User Interface............................................. 3

Viewing Current Temperatures...................4

Viewing the Room Set Temperature...........4

Adjusting the Room Set Temperature.........5

Temporary Room Set Adjustment...............6

Choosing the Mode of Operation................7

Setting the Floor Warming Temperatures ....7

Selecting a Scene.......................................7

Selecting a Schedule.................................. 9

Units of Temperature ................................ 10

Backlight................................................... 10

Cleaning the Thermostat ......................... 10

Error Messages ........................................ 11

Warranty................................................... 12

Congratulations

on the purchase

of your tekmar

programmable

thermostat with

communication.

This thermostat

combines easy-to-use

programming with

advanced features to

increase both comfort

and energy efficiency.

Your tekmar

thermostat allows you

to:

•

• View the outdoor

temperature on

all of your tekmar

thermostats.

•

• Easily set up

custom “Scenes” to

match your home and

lifestyle.

•

• Easily override your

tekmar thermostats if you

are planning an extended

absence.

U541

08/07

tekmarNet®4 Thermostat 541

- User Brochure

Item Field

Displays an

abbreviated

name of the

selected item

Number Field

Displays the

current value of

the selected item

Status Field

Displays the

current status

of the control’s

inputs, outputs

and operation

Menu Field

Displays the

current menu

MODE OF OPERATION

Displays whether in heating or cooling mode.

FIRST STAGE OF HEAT

Indicates when the first stage of heat is operating.

tN4 COMMUNICATION

Indicates when a communication network is detected.

LOCK

Indicates that the access levels are locked. Also indicates when

an item is visible but not adjustable.

OPTIMUM START / STOP

Indicates that Optimum Start or Optimum Stop is active.

WARNING

Indicates an error is present.

TEMPORARY HOLD

Indicates that the temperature has been temporarily adjusted

from the scheduled event temperature.

SCHEDULED EVENT

Indicates the current scheduled event.

Display

Symbols Description

The control uses a Liquid Crystal Display (LCD) as the method of supplying

information on the operation of the thermostat.

Access Levels

This thermostat has five access levels:

•

• SEC (Secure)

•

• LTD (Limited)

•

• USER (User)

•

• INST (Installer)

•

• ADV (Advanced).

This brochure only covers the features available in the SEC, LTD and USER levels.

Only qualified service people should adjust the INST and ADV access levels.

All of the items displayed by the thermostat are organized into five menus:

•

• View

•

• Adjust

•

• Scene

•

• Schedule

•

• Miscellaneous

User Interface

These menus are listed in the Menu Field on the top left hand side of the display.

Use the Menu button to advance to the next menu.

Item

Each menu has several items. The abbreviated name of the selected item will be

displayed in the item field of the display. To view the next available item, press and

release the Item button.

Continue

to next

Item

Continue to next Menu

Continue

to next

Item

Adjustment

To make an adjustment to a setting in the thermostat:

1. Use the Menu button to select the appropriate menu.

2. Use the Item button to select the desired item.

3. Use the Up or Down button to adjust the setting.

Default Item

When you display an item in the View menu for more than 5 seconds it becomes

the default item. After you navigate other menus, the display reverts back to the

default item after 60 seconds of button inactivity.

Viewing Current Temperatures

Use the View menu to view the current temperatures being sensed by the thermostat.

To view the available temperatures, use the Menu button to go to the View menu.

Use the Item button to view the temperatures.

Room Temperature

This is the current air temperature of the room being

controlled.

Outdoor Temperature

If an outdoor sensor is connected, this is the current outdoor

air temperature.

Floor Temperature

If a floor sensor is connected to the thermostat, this is the

current floor temperature.

Viewing the Room Set Temperature

The Room Set temperature is the temperature that the thermostat

is currently set to maintain.

To view the Room Set temperature:

1. Use the Menu button to select the View menu.

2. Use the Item button to select Room Set.

Adjusting the Room Set Temperature (No Schedule)

To adjust the Room Set temperature when there is no schedule in use:

1. Make sure you are in the VIEW menu. If not, press the Menu button until VIEW

displays in the top left corner.

2. Press the Item button to display the ‘Room’ or ‘Room Set’ item.

3. Press the Up or Down button to enter the ‘Set Heat’ mode. Continue pressing

the Up or Down button until the desired temperature is displayed

4. Ten seconds after the adjustment has been made, the display will return to the

default item.

Wait 10

seconds

Press Up or Down Button

to adjust the heating

temperature.

Adjusting the Room Set Temperature (Schedule)

Current schedule status

indicates a schedule is in use Press Up or Down

Button to adjust the

“Wake” temperature.

Press Item Button to

advance to the next set

temperature

If your thermostat is using a schedule, the current event of Wake, UnOcc, Occ,

Sleep or Away displays on the screen.

To change the temperature for a schedule event:

1. Use the Menu button to select the Adjust menu.

Use the Item button to select the Set Heat item for the event you would like to

change (Wake, UnOcc, Occ, Sleep, or Away)

3. Use the Up or Down buttons to change the set temperature for the event.

If your thermostat is using a schedule and you would like to temporarily change the

current heating temperature:

1. Make sure you are in the View menu. If not, press the Menu button until VIEW

displays in the top left corner.

2. Press the Item button to select either the ‘Room’ or ‘Room Set’ item.

3. Press the Up or Down button to enter the ‘Set Heat’ mode. The words ‘TMPY

HOLD’ will appear indicating that you are only making a temporary change.

Continue pressing the Up or Down button to adjust the desired temperature.

4. Ten seconds after the adjustment has been made, the display will return to the

default item. The words ‘TMPY HOLD’ will remain on the screen for the 3 hour

duration of the temporary change.

Temporary Room Set Adjustment (Schedule Only)

Wait 10

seconds

5. To cancel the temporary hold before it expires, press and hold the Up and Down

buttons at the same time.

If a floor sensor is installed, you can set the minimum floor temperature.

Caution: Setting a high floor minimum temperature can result in overheating the room.

To set the floor minimum temperature:

1. Use the Menu button to select the Adjust menu.

2. Use the Item button to select FLOOR MIN.

3. Use the Up or Down button to adjust the temperature.

Note: If your thermostat is using the schedule feature, you will have to set a FLOOR

MIN temperature for each period.

There are up to four periods:

•

• Wake

•

• Occ (Occupied)

•

• Unocc (Unoccupied)

•

• Sleep

Setting the Floor Warming Temperatures

Selecting a Scene

Scenes is a feature that your installer selects when he sets up each thermostat in

your system.

Please refer to the Job Record J541 for a record of how your installer made these

settings.

Scenes allow you to change the temperature of all the thermostats that use the

Scene feature from a single thermostat.

Several of the Scenes are preset from the factory. However, your installer can

customize several of the scenes based on your needs.

Refer to the Scene table on the following page for a description of each scene.

Choosing the Mode of Operation

The thermostat has two modes of operation:

•

• Heat: Provides heating only.

•

• Off: Does not provide heating.

To choose the Mode of Operation:

1. Use the Menu button to select the Adjust

menu.

2. Use the Item button to select the Mode

item.

3. Use the Up or Down button to select

either Off or Heat.

To select a scene:

1. Use the Menu button to select the Scene menu.

2. Use the Item button to select the Select item.

3. Use the Up or Down button to select the desired

scene.

• Default Scene: The default scene is Permanent 1.

In a typical installation, the thermostat follows the

schedule.

• Factory set scene: When you select a factory set scene (2, 3, and 6), all of

the thermostats using the scene feature use the temperature specified by the

scene.

• Custom scenes: When you select a custom scene, your installer will have preset

each thermostat using the scene feature to either follow its regular schedule, or

go to the set wake, occupied, unoccupied, sleep or away temperature.

Example:

A house is normally in scene

Permanent 1. There is a master

bedroom that operates on a

schedule and there is a guest

bedroom that is normally set

to Unoccupied. When a guest

arrives, the scene is to change to

Permanent 4. Scene 4 changes

the guest room to operate on the

setback schedule.

Location Scene Temperature

Master

Bedroom

1 Schedule

4 Schedule

Guest

Bedroom

1 UnOccupied

4 Schedule

Scene Description Thermostat Operation

1 Permanent 1

Scheduled event, Wake, Unoccupied,

Occupied, Sleep, Away

2 Permanent Away 2

Away

DHW demands are ignored (applies

to reset modules) Setpoint demands

operate (applies to reset modules)

3 Permanent Unoccupied 3 Unoccupied

4 Permanent 4

Scheduled event, Wake, Unoccupied,

Occupied, Sleep, Away

5 Permanent 5

Scheduled event, Wake, Unoccupied,

Occupied, Sleep, Away

6 Temporary Occupied 6 Occupied for 3 hours

7 Temporary 7

Scheduled event, Wake, Unoccupied,

Occupied, Sleep, Away for 4 hours

8 Temporary 8

Scheduled event, Wake, Unoccupied,

Occupied, Sleep, Away for 8 hours

Schedule Description

None No schedule is used.

MBR1, MBR2,

MBR3,MBR4 This thermostat is a system schedule member. The number indicates

which of the four system schedules the thermostat is following.

During installation, your installer will have selected a schedule for your thermostat.

To view the schedule your installer has selected:

1. Use the Menu button to select the Schedule Menu

2. Use the Item button to select the Heat Schd. You will see one of the following:

•

• None: This thermostat is not using a schedule and operates at a single

temperature.

•

• MBR1 to MBR4: This thermostat is a member of a master schedule that has

been set on a separate thermostat. If the master schedule is changed, it affects

this thermostat.

Master

Schedule 1

Members of

Schedule 1 Members of

Schedule 2

Master

Schedule 2

None Zone

Schedule

Zone 1 2 3 4 5 6 7 8

Selecting a Schedule

Units of Temperature

You can display temperatures in either Fahrenheit (°F) or in Celsius (°C).

To change the units of temperature:

1. Use the Menu button to select the Misc menu.

2. Use the Item button until the units flash.

3. Use the Up or Down button to select Fahrenheit (°F) or Celsius (°C):

Backlight

The thermostat’s display has a backlight. By default the backlight is temporarily On.

You can also set the backlight to be either permanently On or permanently Off.

To change the backlight setting:

1. Use the Menu button to select the Misc menu.

2. Use the Item button to select Backlite.

3. Use the Up or Down button to select a setting:

•

• ON: Backlight stays on.

•

• TMPY (Temporary): Backlight stays on for 30 seconds.

•

• OFF: Backlight is off.

Cleaning the Thermostat

Clean the thermostat’s exterior using a damp cloth. Moisten the cloth with water

and wring out prior to wiping the thermostat. Do not use solvents or cleaning

solutions.

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