tekmar 542 Installation

- Data Brochure
tekmarNet®4 Thermostat 542
D 542
08/07
1
Information
Choose controls
to match
application
2
Application
Design your
mechanical
applications
3
Rough In
Rough-in
instructions
Wiring
wiring
4
Wiring
Wiring and
installation of
specific control
5
Data
Control settings
and sequence of
operation
6
Job
Record
Record settings &
wiring details for
future reference
Introduction
The tekmarNet®4 thermostat 542 operates one stage of heating equipment. The 542 can operate as a stand alone device, or communicate with a group of tekmarNet®4 thermostats.
Features
tN4 Compatible
2 Auxiliary Temperature Sensor Input
Pulse Width Modulation
Programmable Setback Scheduling
Scenes
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Table of Contents
Table of Contents ............................................................2
Display and DIP Switches ..............................................2
Dip Switches ...........................................................2
Access Levels .........................................................3
Display and Symbols Description............................3
User Interface .........................................................4
Setup ..............................................................................5
View Menu .............................................................5
Adjust Menu ............................................................6
Time Menu ..............................................................9
Scene Menu ..........................................................10
Schedule Menu ..................................................... 11
Miscellaneous Menu ............................................ 14
Thermostat Operation ..................................................16
Auxiliary Sensors ................................................. 16
Mode of Operation ............................................... 16
Adjusting the Temperature ................................... 17
Cycles Per Hour ................................................... 18
Heating Terminal Units .........................................18
Heating Operation ................................................19
Cool Groups .........................................................20
Time Clock ............................................................20
Setting the Schedule .............................................20
Optimum Start / Stop ...........................................21
Scenes .................................................................22
Away Hold ............................................................23
Offset ...................................................................23
Units of Temperature ............................................23
Backlight ..............................................................23
tN4 Address .........................................................24
Pump Exercising ................................................... 24
Error Messages ............................................................25
Cleaning the Thermostat .............................................28
Warranty .......................................................................28
Display and DIP Switches
Dip Switches
tN4 System Control (DIP Switch #2)
A tN4 System Control is a control, not a thermostat, that the 542 thermostat connects to through the tN4 bus. All tN4 compatible Outdoor Reset Modules are tN4 System Controls.
If the thermostat is connected to a tN4 System Control, set the tN4 System Control DIP switch to tN4 System Control (down position).
If the thermostat is not connected to a tN4 System Control, set the tN4 System Control DIP switch to None
(up position).
Lock / Unlock (DIP Switch #1)
Use the Lock / Unlock DIP switch to lock or unlock the Access Level of the 542.
To unlock the Access Level, set the DIP switch to the unlocked (down) position.
To lock the Access Level, set the DIP switch to the locked (up) position. Once locked, a padlock is displayed in the lower right corner of the display and the Access Level cannot be changed.
Note: The tN4 System Control’s Lock / Unlock DIP switch overrides the Lock / Unlock DIP switch on the 542. Set the tN4 System Control’s Lock / Unlock DIP switch to the Unlock position before Access Levels can be changed on the thermostat.
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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 542 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
Display
Menu Field
Displays the
current menu
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 542, 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.
Item Field
Displays an abbreviated name of the selected item
Status Field
Displays the current status
of the control’s inputs, outputs and operation
Symbols Description
MODE OF OPERATION
Displays whether the device is in heating or off mode.
FIRST STAGE HEAT
First stage heating is operating.
SCHEDULE MASTER
Indicates that this thermostat is a schedule master.
tN4 COMMUNICATION
A tN4 network is detected.
Number Field
Displays the current value of the selected item
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.
LOCK
The Access Levels are locked. A menu option is visible but not adjustable.
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User Interface
Use the User Interface available on the Liquid Crystal Display (LCD) to setup and monitor the operation of the thermostat. Use the four push buttons below the LCD (Menu, Item, Up, Down) to select settings. As you enter settings, record the settings in the Job Record J 542.
Menu
The menus display in the Menu Field at the left of the LCD.
Six menus are available:
View
Adjust
Time
Scene
Schedule
Miscellaneous
To select a menu, press and release the Menu button.
Item
In each menu, a group of items can be selected. The abbreviated name of the selected item displays in the Item field of the LCD display.
To view the next available item, press and release the Item button.
To view the previous item, hold down the Item button and press and release the Up button.
Adjusting a Setting
To adjust a setting:
1. Use the Menu button to select the appropriate menu.
2. Use the Item button to select a menu item.
3. Use the Up or Down button to adjust the setting.
Default Item
To set the default item in the View Menu, display the
item for more than five seconds.
After navigating menus, the display reverts back to the default item after 60 seconds of button inactivity.
Copy Settings
To save time in setting thermostats, you can copy the settings from one tN4 thermostat to a second tN4 thermostat.
Refer to the COPY item in the Misc menu on page 15.
Continue to next Menu
Continue to next Item
Continue to next Item
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Display Menus
View Menu (1 of 2)
The View menu items display the current operating temperatures and status information of the system.
Item Field Range
VIEW MENU
-58 to 212°F
(-50.0 to 100.0°C)
– – –, 40 to 95°F
(– – –, 4.5 to 35.0°C)
– – – (if no recent
message),
-58 to 212°F
(-50.0 to 100.0°C)
-76 to 149°F
(-60.0 to 65.0°C)
-76 to 149°F
(-60.0 to 65.0°C)
Access
SEC
LTD
USER
INST
ADV
USER
INST
ADV
SEC
LTD
USER
INST
ADV
USER
INST
ADV
USER
INST
ADV
Description
ROOM SECTION A
Current air temperature in the room. Note: This item is only available when the Room Sensor
is set to On or Sensor 1 or 2 is set to Room.
ROOM SET SECTION A
Selected room temperature. Note: This item is only available when the Room Sensor
is set to On or Sensor 1 or 2 is set to Room.
OUTDOOR SECTION A
Current temperature at the outdoor sensor. Note: This item is only available when an outdoor
sensor is connected to the tN4 network.
OUTDOOR HIGH SECTION A
Records the highest outdoor temperature. Press Up and Down buttons to clear.
Note: This item is only available when an outdoor sensor is connected to the tN4 network.
OUTDOOR LOW SECTION A
Records the lowest outdoor temperature. Press Up and Down buttons to clear.
Note: This item is only available when an outdoor sensor is connected to the tN4 network.
SEC
-58 to 212°F
(-50.0 to 100.0°C)
-58 to 212°F
(-50.0 to 100.0°C)
Continued on next page.
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LTD
USER
INST
ADV
USER
INST
ADV
FLOOR SECTION A
Current floor temperature. Note: This item is only available when Sensor 1 or
2 is set to Floor.
REMOTE SENSOR SECTION A
Current temperature at the remote sensor location. Note: This item is only available when Sensor 1 is
set to Remote.
View Menu (2 of 2)
Item Field Range
-22 to 266°F
(-30.0 to 130.0°C)
Access
INST
ADV
VIEW MENU
After the last item, the control returns to the first item in the menu.
Adjust Menu (1 of 3)
Description
SUPPLY TEMPERATURE OF TN4 BUS
Actual water temperature of the tN4 bus for the first stage of heat.
Note: This item is only available when the thermostat is connected to an Outdoor Reset Module and the DIP switch is set to tN4 System Control.
SECTION F
Item Field Range Access Description
Wake
ADJUST MENU
UnOccupied
Occupied
OFF, HEAT,
Default = HEAT
40 to 95°F
(4.5 to 35.0°C)
Default = 70°F (21.0°C)
Default = 62°F (16.5°C)
Default = 70°F (21.0°C)
USER
INST
ADV
LTD
USER
INST
ADV
The Adjust Menu items are the programmable settings used to operate the mechanical equipment.
MODE OF OPERATION SECTION B Mode of operation of the thermostat.
SET HEAT SECTION C Selected air heating temperature for each event. Note: At the Limited Access Level, you can only
adjust the temperature +/-3°F (1.5°C) from the last setting.
Away is only available when Scenes are turned on.
Sleep
Away
Continued on next page.
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Default = 62°F (16.5°C)
Default = 62°F (16.5°C)
Adjust Menu (2 of 3)
Item Field Range Access Description
Wake
UnOccupied
Occupied
Sleep
OFF, 40 to 122°F
(OFF, 4.5 to 50.0°C)
Default = 70°F (21.0°C)
Default = OFF
Default = 70°F (21.0°C)
Default = OFF
40 to 122°F
(4.5 to 50.0°C) Default = 85°F
(29.5°C)
OFF, ROOM,
FLOR (Floor),
REM (Remote)
Default = OFF
LTD
USER
INST ADV
ADV
INST ADV
FLOOR MINIMUM
Select the minimum floor temperature for each event.
Note: This item is only available when Sensor 1 or 2 is set to Floor. At the Limited Access Level, you can only adjust the temperature +/-3°F (1.5°C) from the last setting.
FLOOR MAXIMUM
Maximum floor temperature. Note: This item is only available when Sensor 1 or
2 is set to Floor.
SENSOR 1 SECTION A
Select the type of sensor connected to the auxiliary sensor input 1.
SECTION A
SECTION A
ADJUST MENU
OFF, ROOM,
FLOR (Floor),
OUT (Outdoor)
Default = OFF
OFF, ON
Default = ON
SYNC, AUTO
2 to 12
Default = AUTO
CTRL, HRF1, HRF2,
COIL, CONV, RAD,
BASE, OTHR
Default =CTRL
INST ADV
INST ADV
ADV
INST ADV
SENSOR 2 SECTION A
Select the type of sensor connected to auxiliary sensor input 2.
ROOM SENSOR SECTION A Selects whether the built-in room sensor is functional.
HEAT CYCLES PER HOUR
Select the number of heating cycles per hour. SYNC results in 5 CPH. All tN4 thermostats that are connected and have the SYNC setting selected synchronize their cycle to the same starting time.
Note: This item is only available when the tN4 System Control DIP switch is set to None.
HEAT 1 TERMINAL SECTION E
Select the type of heating terminal. Note: If CTRL is selected, the terminal unit selected
on the tN4 System Control is used.
SECTION D
Continued on next page.
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Adjust Menu (3 of 3)
Item Field Range Access Description
ADJUST MENU
OFF, ON
Default = ON
OFF, ON
Default = OFF
NONE, 1 to 16
Default = NONE
NONE, ZONE, CTRL
Default = CTRL
40 to 100°F, OFF
(4.5 to 38.0°C, OFF)
Default = 72°F
(22.0°C)
INST
ADV
INST
ADV
ADV
ADV
INST
ADV
HEAT 1 PUMP
Select whether the system, primary, or mixing pump on a tN4 System Control must operate while the heat is operating.
Note: This item is only available when the H1 Terminal item is set to CTRL, HRF1, HRF2, Fan Coil, Convector, Radiator, or Baseboard.
HEAT 1 DELAY SECTION F
Select whether the system, primary, or mixing pump on a tN4 System Control is delayed to allow a thermal motor zone valve to open. Select On for thermal motor, select Off for zone pump or motorized zone valve.
Note: This item is only available when the H1 Terminal item is set to CTRL, HRF1, HRF2, Fan Coil, Convector, Radiator, or Baseboard.
COOL MEMBER SECTION G
Select the cool group of which this thermostat is a member. Select None if this thermostat is not a cool group member.
Note: This item is only available when the thermostat is connected to a tN4 network.
WARM WEATHER SHUT DOWN SECTION N Set the outdoor temperature at which warm weather
shutdown occurs. Select whether the thermostat follows the tN4 System Control’s or the zone’s WWSD for scheduled events.
WWSD OCCUPIED AND WAKE SECTION N
Set the Warm Weather Shut Down (WWSD) temperature during Occupied and Wake events.
Note: This item is only available when WWSD is set to Zone.
SECTION F
40 to 100°F, OFF
(4.5 to 38.0°C, OFF)
Default = 60°F
(15.5°C)
ON, OFF
Default = ON
After the last item, the control returns to the first item in the menu.
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INST
ADV
INST
ADV
WWSD UNOCCUPIED AND SLEEP SECTION N
Set the Warm Weather Shut Down temperature during Unoccupied and Sleep events.
Note: This item is only available when WWSD is set to Zone.
OPTIMUM START / STOP SECTION J
Select whether to use Optimum Start / Stop for heating.
Note: This item is only available when a heating schedule is selected.
Time Menu (1 of 1)
The Time menu items set the time clock, day and date.
Item Field Range
TIME MENU
SUNDAY, MONDAY,
TUESDAY,
WEDNESDAY,
THURSDAY, FRIDAY,
SATURDAY
Default = MONDAY
12:00 to :59
Default = :12:00 AM
12:00 AM to 11:59 PM or
00:00 to 23:59
Default = 12:00 AM
SUNDAY ...
WEDNESDAY ...
SATURDAY
Default = SUNDAY
Access
USER
INST ADV
USER
INST ADV
USER
INST ADV
USER
INST ADV
Description
CURRENT TIME AND DAY SECTION H
Displays the current time and day of the week. The time and date flash if the time is not set.
CLOCK MINUTES
Set the minutes.
CLOCK HOURS SECTION H Set the hours.
DAY OF THE WEEK SECTION H Set the day of the week.
SECTION H
12 hr to 24 hr
Default = 12
After the last item, the control returns to the first item in the menu.
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ADV
MODE SECTION H Select whether time should be displayed using a 12
or a 24 hour clock.
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