tekmar 541 Thermostat - Manual (Page 3)

3 of 24 © 2007 D 541 - 08/07
Access Levels
The Access Level restricts the number of Menus, Items
and Adjustments that can be accessed by the user. The
Access Level setting is found in the Miscellaneous (MISC)
menu. Select the appropriate access level for the people
who work with the thermostat on a regular basis.
The 541 has five Access Levels:
•
• Advanced (ADV): access to all settings
•
• Installer (INST): settings required for installation
•
• User (USER): for property owners
•
• Limited (LTD): limited temperature adjustment
•
• Secure (SEC): for commercial and public installations
For more information, see the Misc (Miscellaneous) Menu
section.
In the following menu tables, the access level the item is
visible in is shown in the access column.
To adjust the Access Level:
1. Set the Unlock / Lock DIP switch to the unlock position.
If a tN4 System Control is connected to the 541, the
Unlock / Lock DIP switch on the tN4 System Control
must be set to the unlock position.
2. Use the Menu button to select the Misc menu.
3. Use the Item button to select the Access menu item.
4. Use the Up and Down button to select the required
Access Level.
Display
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
Symbols Description
MODE OF OPERATION
Displays whether the device is in heating
mode.
FIRST STAGE HEAT
First stage heating is operating.
tN4 COMMUNICATION
A tN4 network is detected.
LOCK
The Access Levels are locked. A menu
option is visible but not adjustable.
OPTIMUM START / STOP
The Optimum Start or Optimum Stop
feature is active.
WARNING
An error is present.
TEMPORARY HOLD
The temperature has been temporarily
adjusted from the scheduled event.
SCHEDULED EVENT
Displays the current scheduled event.