Tekmar tekmarNet 557 User manual

© 2012 557_U - 08/12
1 of 12
A Watts Water Technologies Company
User Manual
tekmarNet®Thermostat 557
Zoning
557
_
U
08/12
Replaces: New

© 2012 557_U - 08/12
2 of 12
A Watts Water Technologies Company
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 and cooling for one zone in your building. It will
maintain your air temperature with an on board room sensor. Floor temperature
control may also be enabled in this thermostat when a floor sensor is installed.
This thermostat can lower its temperature setting at night or when you are away
from the house.
Display of the time, schedule and the away key on the Home screen is optional and
can be turned on or off in the programming menus.
To enter the programming menus, press and hold the Home button for 3
seconds.
Touchscreen Adjustments
The touchscreen of this thermostat makes it easy to change commonly used settings.
Touch any item to adjust it’s setting. You will hear a “tick” sound each time you touch
the display. When you are finished making changes, touching the Home button will
return to the Home screen. If you do not touch the screen for 3 seconds, the Home
screen is automatically displayed.
Adjust
the Time
Adjust the
Schedule
Away Key
Switch between
Auto, Heat,
Cool, Off &
Emergency Mode
Home Button.
Return to the ‘Home’
Screen from any menu.
Press and hold for 3
seconds to access the
programming menus.
Room
Temperature
Turn the Fan on
Home
Button
Adjust the
Temperature
Display Humidity, Heat &
Cool settings, Floor or
Outdoor temperature

© 2012 557_U - 08/12
3 of 12
A Watts Water Technologies Company
Display Symbols
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.
HEAT ON
Heat is turned on.
COOL ON
Cooling is turned on.
FAN
The fan is turned on.
%RH
Humidifying
%RH
Dehumidifying
SUN
Operating at the occupied (day) temperature.
MOON
Operating at the unoccupied (night) temperature.
tekmarNet
®
Communication is present.
WARNING SYMBOL
Indicates an error is present.
ARROWS
Adjust the displayed setting.
SCENE AWAY
Operating at Away temperature.
TEMPORARY HOLD
Hold for 3, 6, 9 or 12 hours.
WWSD
The outdoor air temperature is above the Warm Weather
Shut Down setting which shuts off the heating system.
COOL
Radiant floor cooling system is on.
or MIN or MAX
Reached the room minimum or maximum.
or MIN FL or MAX FL
Reached the floor minimum or maximum.

© 2012 557_U - 08/12
4 of 12
A Watts Water Technologies Company
Adjust the Temperature - Temporary Hold
Temporary hold allows a user to change the temperature for a period of time and then
automatically return to the permanent temperature setting. This is especially useful
in commercial buildings that are in use for short amounts of time. When selected,
touching the up or down arrows changes the temperature for either 3, 6, 9 or 12
hours. If the thermostat is using a schedule, ‘Schd’ provides a temporary hold until
the next schedule event time. After the temporary hold time expires, the thermostat
returns to normal operation. By default, the temporary hold feature is off.
Adjust the Temperature
To change the heating or cooling set temperature, touch the or arrows to
select a preferred temperature setting. Press the home button to accept the setting
or leave the screen untouched for several seconds. To toggle between changing
the heating or cooling setting, press the H <> C key. This thermostat is capable of
controlling the floor or air temperature.
Note: The temperature is not adjustable if the thermostat is in the Away scene, the Off
mode or has been set to the “Limited” or “Secure” access level by the installer.
adjusts
When the temporary
hold feature is enabled,
touching the up or
down arrow displays
‘TEMPORARY HOLD’.
Use the Up or Down
arrow to select a
temperature.
Tap the hour
setting until
the preferred
length of time
is displayed.
Cancel the
temporary
hold.
‘HOLD’ is displayed while the
thermostat is operating at the
temporary hold temperature.

© 2012 557_U - 08/12
5 of 12
A Watts Water Technologies Company
Adjust the Time
Secondary Temperature Display
This thermostat can display the outdoor or floor temperature, relative humidity,
or the room heating and cooling temperature settings in the smaller number area
at the top right of the screen. To toggle the item currently displayed, touch the
secondary temperature. Display of the floor or outdoor temperature requires a
connection to an external floor or outdoor air sensor.
To change the current time, touch the clock on the display.
Use the or arrow to change the minutes, hour
and day.
Touch “NEXT ITEM” to advance to the next item or
“BACK” for the previous item.
To store the new time and date, press the home button,
or leave the screen untouched for several seconds.
Note: The time is not visible when the thermostat is in
the Away scene or if the clock display is turned off in the
Time menu.
•
•
•
Mode of Operation
This thermostat has 5 operating modes: Heat, Cool. Auto, Emer (emergency), and
Off. Touch the Mode key on the screen to select the desired mode of operation.
Auto mode will automatically switch between heating, cooling and the emergency
backup heat as required. Emergency mode is for heat pump installations whereby the
heat pump is forced off and the backup heat is manually turned on. The temperature
is not adjustable while the thermostat is off.
Note: If near freezing temperatures are detected the system will operate to maintain
40°F (4.5°C), even in the Off mode.
or or or or
or or or

© 2012 557_U - 08/12
6 of 12
A Watts Water Technologies Company
This thermostat is capable of running at a lower temperature setting when you are
asleep or out of the building. When the schedule setting is on, day and night
temperature settings will display on the screen. If you adjust the temperature while
the sun is displayed, the day setting changes. If you adjust the temperature while
the moon is displayed, the night setting changes.
To adjust the times when the day and night temperature start, touch the sun or
moon on the screen. “Schedule Menu” will display followed by the first adjustable
schedule event time.
Programmable Schedule - Day and Night
Use the or arrow to adjust the time for each event.
Touch ‘NEXT ITEM’ to advance to the next event or
‘BACK’ for the previous event.
To accept the settings, press the home button, or leave
the screen untouched for several seconds.
The thermostat schedule can be set to 2 or 4 events per
day repeating on a 24 hr or 7 day cycle. These schedule
settings are detailed later in this brochure.
•
•
•
•
Going Away Setting
This thermostat can save additional energy while you are
away by lowering the heating temperature and increasing
the cooling temperature. To enable this feature, touch “Going
Away” on the screen. This is only available when the Away
Key has been turned on in the Scene menu.
Select PERM (permanent) or a number of days using
the or arrow.
Press the home button to accept the setting or leave the
screen untouched for several seconds.
“Scene Away” is displayed on the home screen until the
number of days expires.
Touch “Cancel Away” to cancel at any time.
•
•
•
•
Access Levels
This thermostat has access levels. It will typically be installed and programmed by a
heating professional and then locked in a “User”, “Limited”, or “Secure” 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. This brochure focuses on settings available to the “User”.
or
Note: The temperature is not adjustable while the thermostat is in Away.

© 2012 557_U - 08/12
7 of 12
A Watts Water Technologies Company
Program Menu Settings
To Enter the Programming Menus
----------------------------------
----------------------------------
Press and hold the Home button for 3 seconds to enter the programming menus.
Select a Programming Menu
---------------------------------------
---------------------------------------
Touch “NEXT” to advance (clockwise in the illustration below) to the next menu.
Touch “BACK” to go backwards (counterclockwise in the illustration below) through
the menus.
Touch “ENTER” to enter a menu.
Setting Items
-------------------------------------------------------
-------------------------------------------------------
Touch or arrow to adjust the setting if required.
Touch “NEXT ITEM” to advance to the next item within the menu.
Touch “BACK ITEM” to go backwards to the previous item within the menu.
To return to the parent menu after changing a setting, press and release the
home button.
To return to the home screen, press and release the home button twice or wait
30 seconds to automatically return to the home screen.
•
•
•
•
•
•
•
•
Press and
hold for 3
seconds to
access the
programming
menus.

© 2012 557_U - 08/12
8 of 12
A Watts Water Technologies Company
Screen Clean Menu
Entering the Screen Clean menu gives you 30 seconds to clean the thermostat and
display with a moist cloth. Do not use solvents to clean the thermostat.
Set Temp Menu
Entering the Set Temp menu allows you to permanently change both the day
and night temperature settings for both heating, cooling.
If your thermostat is being used for radiant floor heating, a floor sensor can be
connected and floor minimum day and night temperatures can be set. Radiant
floors heat the air by raising the floor temperature. Setting a floor temperature is a
way of enhancing the comfort of your living space.
Air Temperature Only
-----------------------------------------------
-----------------------------------------------
If there is only an air temperature sensor (no floor sensor), the thermostat operates
to control your desired air temperature.
Floor and Air Temperature
-----------------------------------------
-----------------------------------------
If the air sensor is turned on and a floor sensor is connected, the thermostat will
maintain your desired air temperature as well as a minimum floor temperature.
This operation is recommended for areas with large windows that allow the sun to
shine into a room and keep it warm without the need for heat. This can allow the
floors to cool off during the afternoon. When the sun goes down, it can take a long
time for the floors to get warm again. This may cause the room to cool off too much in
the early evening. A floor minimum setting can help with this condition by maintaining
a floor minimum temperature. Keep in mind the floor minimum temperature will
override the air temperature, and if set too high, may overheat the room.
This operation is also recommended for rooms with hardwood floors. Setting floor
minimum and maximum temperatures is a way of enhancing the comfort of your
living space while protecting your floor coverings.
90°F (32°C)
Feels hot to the touch
80 to 85°F (26 to 30°C)
Feels warm to the touch
70°F (21°C)
Feels cool to the touch
40 to 45°F (5 to 7°C)
Feels cold to the touch
Suggested maximum for all floor
types other than wood.
Bathrooms and kitchens. Suggested
maximum for wood floors.
Rooms with large windows preventing
under heating in the evening.
Freeze protection for garages.

© 2012 557_U - 08/12
9 of 12
A Watts Water Technologies Company
Time Menu Settings
Set date, month and year
Required for daylight savings time.
Daylight Save
Automatic daylight saving time update for the spring and fall.
Time Mode
Select either 12 or 24 hour time format.
Clock
Select on to display the time clock in the Home menu (available when schedules
are not used).
Schedule Menu Settings
Energy savings can be acheived by lowering the heating temperature and increasing
the cooling temperature when the building is unoccupied or during the night.
When operating on a programmable schedule, a or a symbol is shown in the
home menu. The or indicates the current operating temperature.
All schedules are stored in permanent memory and are not affected by a
loss of power.
Display Action
Day temperature
Night temperature
This thermostat can operate on a programmable schedule in order to automatically
lower the heating temperature and increase the cooling temperature setting. Options
include:
Turning off the schedule (OFF)
Operate a schedule that applies only to this thermostat zone (ZONE)
The ability to operate one of the four system-wide schedules as a master (Schedule
Master 1 through 4*)
Join one of the four system-wide schedules as a member (Schedule Member
1 though 4*)
*Requires the thermostat to be connected to a tekmarNet®system.
Once the type of schedule has been selected, the thermostat can support schedules
that have either:
2 events per day
4 events per day
Schedules with four events per day are common for residential use while two events
per day are common for commercial installations.
•
•
•
•
•
•

© 2012 557_U - 08/12
10 of 12
A Watts Water Technologies Company
Scene Menu Settings
Scenes
Scenes provide system-wide overrides to save energy. Select whether scenes are
not used (none) or if the away scene is available.
Away Key
If scenes are available, select if the away key is available or not.
Note: When used in conjunction with a tekmarNet®system control to operate the
heating appliance, the domestic hot water tank is not heated while in away scene.
Display Menu Settings
Units
Select temperature units in degrees Fahrenheit or Celsius.
Backlight Options
Select how the display backlight operates.
ON = The display is always at full brightness.
DIM = When thermostat is not in use, the display is dim but is at full brightness
when touched.
DIM = When the thermostat is not in use, the display is dim while the schedule
or scene is . The display backlight is off when the schedule or scene is . The
thermostat display is at full brightness when touched.
ON = When the thermostat is not in use, the display is at full brightness when
the schedule or scene is . The display backlight is off when the schedule or
scene is . The thermostat display is at full brightness when touched.
OFF = The display backlight is always off.
Secondary Item
Select whether the outdoor or floor temperature, relative humidity, or the room
heating and cooling temperature settings is shown in the upper right hand corner
in the Home menu.
•
•
•
•
•
The schedules can be repeated every:
24 hours
7 days (week)
A 7 day schedule allows a unique time to be set to change the temperature for each
day of the week.
The schedule also includes a “SKIP” option that allows the programmable schedule to
skip a temperature change and remain at the previous temperature setting. The “SKIP”
setting can be found between 11:50 PM (23:50 hours) and 12:00 AM (0:00 hours).
When a programmable schedule is selected, there is a time delay for the room to
warm up or cool down from the temperature to the temperature. The thermostat
has the option to use Optimum Start to predict the heat up or cool down rate of
the room. When Optimum Start is set to On, the heating or cooling is started in
advance to allow the room to reach the Set Room temperature at the time set in
the programmable schedule.
•
•
Schedule Menu Settings (Continued)

© 2012 557_U - 08/12
11 of 12
A Watts Water Technologies Company
Monitor Menu
The monitor menu allows you to view the following temperatures and running hours :
Outdoor temperature highs and lows
Room temperature highs and lows
Floor temperature highs and lows (requires floor sensor to be installed)
Filter Hours = Number of hours since the air filter was last replaced
Heat Y1 = Number of hours the heat pump is heating
Heat Y2 = Number of hours the second stage heat pump is heating
Heat W1 = Number of hours the radiant floor (first stage heat) is on
Heat W2 = Number of hours the backup heat is on
Cool Y1 = Number of hours the heat pump is cooling
Cool Y2 = Number of hours the second stage heat pump is cooling
Cool W1 = Number of hours the radiant floor is actively cooling the room (available
in select radiant floor cooling installations)
Cool W2 = Number of hours the chilled water fan coil or chilled beam is cooling
Fan = Number of hours the fan has been operating
Humidify = Number of hours the humidifier is on
Dehumidify = Number of hours the dehumidifier is on
To clear the temperature highs and lows or the running hours:
1. Touch the temperature or running hours.
2. Display will show “ ”.
3. Touch Enter.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Toolbox Menu
This menu is provides advanced level information.
Access
Change the access level on the thermostat.
Status Info
Displays the current status of the thermostat including any overrides from the tekmarNet
®
system control. Toggles between “Status Info” and the current status.
System Normal = Thermostat is operating normally.
For all other thermostat status messages, please see the Installation & Operation
Manual 557_D.
Software Version and Type Number
Display the software “SW” and the “TYPE” number.
•
•

All specifications are subject
to change without notice
12 of 12 557_U - 08/12.
Product design, software and literature are Copyright ©2012 by tekmar Control Systems Ltd.,
A Watts Water Technologies Company. Head Office: 5100 Silver Star Road, Vernon, B.C.
Canada V1B 3K4, 250-545-7749, Fax. [phone]
Web Site : www.tekmarControls.com
More Information
Frequently Asked Questions
This User Brochure contains standard information on how to make adjustments
to an installed product. More detailed information can be found in this product’s
Installation and Operation Manual (557_D) at www.tekmarControls.com
Symptom Look for... Corrective Action
No heating
or
No cooling
indicates heat is on. If the is
displayed and there is no heat, contact your
HVAC professional.
indicates cooling is on. If the
is displayed and there is no cooling, contact
your HVAC professional.
MODE
The thermostat is in the Off mode. Touch the
mode key to change to Heat, Cool, or Auto.
No or key Touch the ‘Cancel Away’ key on the display.
Heat or cool
on before
scheduled time
Optimum Start is on and has turned on the
heat or cooling in advance of your schedule
change.
Touching
key does
not increase
temperature
Flashing
There may be a maximum room temperature
set. Consult your HVAC professional.
Flashing The floor has reached the floor maximum
setting. Consult your HVAC professional.
Flashing Warm weather shut down is in effect.
Adjustable from your system control.
Touching
key does not
decrease
temperature
Flashing
There may be a minimum floor temperature
set. Consult your HVAC professional.
Flashing The floor has reached the floor minimum setting.
Consult your HVAC professional.