Tekmar TekmarNet 4 540 Manuale utente

Zoning

U540

08/10

User Manual

tekmarNet®4 Thermostat 540

Congratulations on the purchase of your

tekmarNet®Thermostat! This product contains

the most advanced HVAC control technology in

order to ensure that your heating and cooling

systems run more efficiently and provide you

with the highest level of comfort.

Replaces: 03/09

This brochure will provide you with the information you need to benefit the most

from your tekmarNet®thermostat. Please visit www.tekmarcontrols.com for more

detailed information on this or any other tekmar product.

This thermostat provides heating, cooling, and fan operation for one zone in your

building. The cooling system may send cool air into more than one heating zone, in

which case this thermostat will coordinate the change from heating to cooling.

The fan can be run with heating, cooling, or on its own to provide fresh air through

ventilation.

With the addition of one of tekmar’s energy saving accessories, this thermostat can

also lower its temperature setting at night or when you are away from the house.

Temperature Adjustment

You will be adjusting the temperature of the current operating mode. To adjust

temperature settings that are not shown on the screen, you must enter into the

Adjust Menu as described in the “Adjust Menu” section. There may be other symbols

on the screen that affect thermostat operation. Please see the “Display Symbols”

section for a description of each symbol.

This thermostat can operate at day or night temperatures (see “Day or

Night Temperatures” section) for HEAT and COOL settings. The temperature

can be adjusted as follows:

Step 1: Press the or button until the desired temperature is displayed.

Step 2: Release all buttons and wait for the display to return to normal operation.

The adjusted settings will be saved in memory.

Adjustment Buttons

Adjust the temperature

HEAT or COOL

displays depending

on Mode

Indicates

whether the day

or night

temperature is

being set

(if available).

If in Auto mode, press

the Mode button to

toggle between Heat

or Cool temperature

adjustment.

Note: Remember to

turn the mode back to

Auto after adjustments

are made.

Adjust Menu

This thermostat has an Adjust Menu that allows adjustment of all of its settings.

The following items can be adjusted or viewed:

Step 1: Press and hold the and buttons until the desired setting is shown

(a new screen will appear every 2 seconds).

Step 2: Press the or button to adjust the temperature setting.

Step 3:

Press and hold the and buttons again to advance to the next

adjustable setting. Repeat steps 1 and 2 until all adjustments have

been made.

Step 4: Release all buttons and wait for the display to return to normal operation.

The adjusted settings will be saved in memory.

Day and night temperatures (if available)

HEAT and COOL temperatures

Fan on-time

Backlight on-time

Temperature units °F or °C

Thermostat type (view only)

•

The Adjust Menu can be accessed as follows:

This thermostat has access levels. It will typically be installed and programmed

by a heating professional and then locked in a “User” access level. System critical

settings will not be available for adjustment. For more information on these settings,

please consult your installing contractor or this product’s Installation and Operation

Manual. The following pages describe the settings available to the “User”.

Indicates setting

is in the Adjust menu

Press and Hold

and together

Indicates

whether the day

or night

temperature is

being set

(if available).

Indicates

whether HEAT

or COOL is

being adjusted

This thermostat is capable of running at a lower temperature setting when you are

asleep or out of the building. An energy saving accessory can be added to your

tekmarNet®system in order to activate these energy saving setback temperatures.

If one is connected, day and night temperature settings will be available.

They are adjusted as follows:

479 User Switch

With the touch of a button,

tell every thermostat in

your house to operate at

their night setback or

Away temperature.

033 Timer

Program a night

setback schedule for

all of your thermostats

with one device.

tekmarNet®Energy Saving Accessories

----------------------------

Examples of these settings are as follows:

Mode of Operation day night

HEAT example: 70°F (21°C) 65°F (18°C)

COOL example: 78°F (26°C) 85°F (30°C)

Note: The presence of a schedule is indicated by the clock symbol.

Step 1: Press and hold the and buttons to enter the Adjust Menu, and

wait until the desired setting is shown with the day symbol on the

screen (a new setting will appear every 2 seconds).

Step 2: Press the or button to adjust the temperature setting.

Step 3: Press and hold the and buttons until the same setting is shown

with the night symbol on the screen.

Step 4: Press the or button to adjust the temperature setting.

Step 5: Release all buttons and wait for the display to return to normal operation.

The adjusted settings will be saved in memory.

Day and Night Temperatures

Day or Night

Setting

Press and

Hold and

together

This thermostat has 4 operating modes: Auto, Cool, Heat, and Off. In order to

change the thermostat mode:

Operating Mode

Step 1: Press the Mode button until the desired Mode is displayed.

Step 2: Wait for the display to return to normal operation. The thermostat will

be operating in the selected Mode.

When in Off mode, the thermostat will still operate heating in order to protect the

building from freezing. If the air temperature drops below 40°F (4.5°C), heating

will be turned on.

When in Auto mode, the thermostat will automatically switch between heating and

cooling with the following conditions:

There will be a 30 minute interlock period when switching from heating to cooling

where no heating or cooling will take place. This is to prevent excessive cycling

of equipment and wasted energy.

In Auto mode, the thermostat will not allow adjustment of heating and cooling

settings to within 3°F (1.5°C) of each other. If you adjust the heating setpoint

within 3°F (1.5°C) of the cooling setpoint, the cooling setpoint will be automatically

adjusted to the heating setpoint plus 3°F (1.5°C) and vice versa. This is also to

prevent excessive equipment cycling and wasted energy.

•

The fan should already be programmed to operate as necessary for heating, cooling,

and ventilation. However, the fan operation can be changed manually by pressing

the Fan button.

The fan operation will appear in the top right corner of the screen when the fan

button is pressed. The following table describes each mode.

Auto The fan will operate as programmed when required for heating, cooling,

or ventilation.

On The fan will run continuously. Heating and cooling operation will occur

as programmed.

10-90%

This will only be available if ventilation has been programmed to be

on. This is the percentage of each hour the fan will run for.

Off This will only be available if the thermostat does not require the fan for

heating or cooling. The fan will not run.

Fan Operation

If a % run time is selected, the thermostat will run the fan as needed for heating or

cooling operation, then will continue operation if necessary to satisfy the % run time

requirement. For example, if a 50% run time is chosen (30 minutes out of 60) and

the heating or cooling has only run for 25% of an hour (15 minutes), the thermostat

will run the fan by itself for another 15 minutes.

Note: This thermostat can be configured such that the fan button does not have

any effect. Consult your installer or this product’s Installation and Operation Manual

for more information.

Fan

Operation

Indicates

whether the

Fan Operation

is being set for

day or night

(if available).

Step 1:

Press the Fan button repeatedly until the desired Fan operation is

displayed

Step 2: Release all buttons and wait for the display to return to normal operation.

The adjusted setting will be saved in memory

Changing the Backlight

Press and

Hold and

together.

Step 1: Press and hold the and buttons to enter the Adjust Menu, and wait

until this screen appears (a new screen will appear every 2 seconds).

Step 2: Press the or button to adjust the backlight operation.

Step 3: Release all buttons and wait for the display to return to normal operation.

The adjusted setting will be saved in memory.

This thermostat has an LED backlight that can be configured as follows:

Off Permanently Off.

30 Temporary on for 30 seconds (when a button is pressed)

On Permanently On

On + On during and off during

Changing the Units (°F or °C)

This thermostat can display temperatures in °F or °C.

Step 1:

Press and hold the and buttons to enter the Adjust Menu, and

wait until this screen appears (a new screen will appear every 2

seconds).

Step 2: Press the or button to adjust the units.

Step 3: Release all buttons and wait for the display to return to normal operation.

The adjusted setting will be saved in memory.

Press and

Hold and

together.

Display Symbols

In addition to the features described in this manual, there may be others operating

in the background. Among others, this thermostat will display symbols on its screen

in order to indicate what mode it is in, what temperature it is operating at, or what

equipment it is trying to turn on. This section describes each of those symbols.

Operating Mode Symbols

The operating mode will appear at the bottom left of the display. This indicates how

the thermostat will respond to temperature changes in your building.

HEAT The thermostat is programmed for heating only. No cooling operation

will occur.

COOL

The thermostat is programmed for cooling. No heating operation will

occur.

AUTO The thermostat will automatically switch between heating and cooling

as necessary with a 30 minute delay in between.

OFF The thermostat is off and will not provide any heating, cooling, or

ventilation operation, unless the room is at risk of freezing.

Equipment Operating Symbols

These symbols indicate the current status of the system.

The thermostat is requesting heat from the system.

The thermostat is requesting cooling from the system.

The fan is turned on.

The thermostat is a Cooling Group Master. It is controlling an air-conditioning

system that has heating thermostats within it. Those thermostats will

be locked out from heating when the cooling equipment is on and their

temperatures will be averaged for cooling operation.

Schedule Symbols

These symbols appear when a Schedule Master or User Switch is connected to the

system. Those devices will tell this thermostat what temperature setting to operate

at (day , night , or ). Refer to the “Day and Night Temperatures”

section for more information.

A Schedule Master is present in the system and this thermostat is

following that Master’s programmable schedule.

Operating at the Day temperature. If there is no Schedule Master or User

Switch in the system, the thermostat will always be in this mode.

Operating at the Night temperature. A setback enabling accessory or

Schedule Master thermostat has enabled setback.

Operating at the Away temperature. If flashing, the temperature

cannot be adjusted by pressing the up or down arrows. Consult the

Installation and Operation Manual for this product for more information

on this feature.

If flashing, the system is in Warm Weather Shut Down. The outdoor

temperature is above the WWSD setting. No heating will take place

while in WWSD.

Communication Symbols

These symbols appear when this thermostat is part of a network and/or when

there is something wrong in the system.

The thermostat is communicating with other devices in the network.

There is something wrong with the thermostat or the tekmarNet®system.

This usually occurs if a control component has failed or is set up incorrectly.

Contact your installing contractor for more information or consult the

Installation and Operation Manual for this product.

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