Tekmar 545 tekmarNet 4 User manual

1 of 40 © 2005 D545 - 06/05
D545
06/05
tekmarNet®4 Thermostat 545
- Brochure
Information
Brochure
Choose controls
to match
application
1Application
Brochure
Design your
mechanical
applications
2Rough In
Wiring
Rough-in
wiring
instructions
3Wiring
Brochure
Wiring and
installation of
specific control
4Job
Record
Record settings &
wiring details for
future reference
6
Data
Brochure
Control settings
and sequence of
operation
5
•
• tN4 Compatible
•
• Automatic Heat/Cool Switchover
•
• 2 Auxiliary Temperature Sensor Inputs
•
• Pulse Width Modulation
•
• Programmable Setback and Setup Scheduling
•
• Scenes
•
• Cooling Group
•
• Radiant Base Load
The tekmarNet®4 thermostat 545 operates two stages of heating equipment, one stage of cooling equipment, and one fan.
The fan operation includes logic to operate ventilation. The 545 can operate as a stand alone device, or communicate with
a group of tekmarNet®4 thermostats.
Introduction
Features
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© 2005 D545 - 06/05 2 of 40
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 ............................................................ 13
Scene Menu.......................................................... 14
Schedule Menu.....................................................16
Monitor Menu........................................................19
Test Menu ............................................................21
Miscellaneous Menu ............................................22
Testing .........................................................................23
Thermostat Operation ..................................................24
Auxiliary Sensors .................................................24
Heat or Cool Mode of Operation ..........................25
Adjusting the Temperature ...................................25
Cycles Per Hour ...................................................26
Heating Terminal Units .........................................26
Heating Operation ................................................27
Cooling Operation ................................................29
Cool Groups .........................................................29
Fan Operation ......................................................30
Filter Change .......................................................31
Time Clock ........................................................... 31
Setting the Schedule.............................................32
Optimum Start / Stop ...........................................33
Scenes .................................................................33
Away Hold ............................................................34
Radiant Base Load ..............................................35
Offset ...................................................................35
Warm Weather Shutdown ....................................35
Cold Weather Shutdown ......................................35
Units of Temperature ............................................35
Backlight ..............................................................35
tN4 Address .........................................................36
Error Messages ............................................................36
Cleaning the Thermostat ......................................39
Warranty .......................................................................40
Display and DIP Switches
Dip Switches
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tN4
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tN4 System Control (DIP Switch #2)
A tN4 System Control is a control, not a thermostat, that
the 545 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.
•
• If the thermostat is not connected to a tN4 System
Control, set the tN4 System Control DIP switch to
None.
Lock/Unlock (DIP Switch #1)
Use the Lock/Unlock DIP switch to lock or unlock the
Access Level of the 545.
•
• To unlock the Access Level, set the DIP switch to the
unlocked position.
•
• To lock the Access Level, set the DIP switch to the locked
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 545. 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 545 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
visable 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 545, 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
or cooling mode.
FIRST STAGE HEAT
First stage heating is operating.
SECOND STAGE HEAT
Second stage heating is operating.
FIRST STAGE COOL
First stage cooling is operating.
FAN
Fan is operating.
FILTER
Replace the filter.
SCHEDULE MASTER
Indicates that this thermostat is a
schedule master.
tN4 COMMUNICATION
A tN4 network is detected.
COOL GROUP MASTER
This thermostat is a cool group master.
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.

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User Interface
Continue
to next Item
Continue to next Menu
Continue
to next Item
Continue
to next Item
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 J545.
Menu
The menus display in the Menu Field at the left of the
LCD.
Eight menus are available:
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 22.
•
• View
•
• Adjust
•
• Time
•
• Scene
•
• Schedule
•
• Monitor
•
• Test
•
• 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.

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Display Menus
View Menu (1 of 2)
Item Field Range Access Description
-58 to 212°F
(-50.0 to 100.0°C)
SEC
LTD
USER
INST
ADV
COOL AVERAGE SECTION H
Average room temperature of the cool group master
and members.
Note: This item is only available when Cooling Stage is
set to 1 and this thermostat is a cool group master.
-58 to 212°F
(-50.0 to 100.0°C)
SEC
LTD
USER
INST
ADV
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.
– – –, 40 to 95°F
(– – –, 4.5 to 35.0°C)
USER
INST
ADV
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.
– – – (if no recent
message),
-58 to 212°F
(-50.0 to 100.0°C)
SEC
LTD
USER
INST
ADV
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.
-58 to 212°F
(-50.0 to 100.0°C)
SEC
LTD
USER
INST
ADV
FLOOR SECTION A
Current floor temperature.
Note: This item is only available when Sensor 1 or
2 is set to Floor.
-58 to 212°F
(-50.0 to 100.0°C)
USER
INST
ADV
REMOTE SENSOR SECTION A
Current temperature at the remote sensor location.
Note: This item is only available when Sensor 1 is
set to Remote.
-58 to 212°F
(-50.0 to 100.0°C)
INST
ADV
COIL SENSOR SECTION A
Current temperature at the coil sensor.
Note: This item is only available when Sensor 2 is
set to Coil.
The View menu items display the current operating
temperatures and status information of the system.
Continued on next page.
VIEW MENU

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Item Field Range Access Description
-58 to 212°F
(-50.0 to 100.0°C)
INST
ADV
DUCT SENSOR SECTION A
Current temperature at the duct sensor.
Note: This item is only available when Sensor 2 is
set to Duct.
-22 to 266°F
(-30.0 to 130.0°C)
INST
ADV
SUPPLY TEMPERATURE OF TN4 BUS SECTION F
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.
View Menu (2 of 2)
After the last item, the control returns to the first item in the menu.
VIEW MENU
Item Field Range Access Description
YES, NO
Default = NO
USER
INST
ADV
CLEAR FILTER SECTION J
Indicates when to reset the air filter timer.
Note: This item is only available when Filter is set to
ON, the air filter timer has expired and the Fan Mode
is set to 1 or 2.
OFF, HEAT,
AUTO, COOL
Default = AUTO
USER
INST
ADV
MODE OF OPERATION SECTION B
Mode of operation of the thermostat or cool group.
40 to 95°F
(4.5 to 35.0°C)
LTD
USER
INST
ADV
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.
Wake
Default = 70°F (21.0°C)
UnOccupied
Default = 62°F (16.5°C)
Occupied
Default = 70°F (21.0°C)
Sleep
Default = 62°F (16.5°C)
Away
Default = 62°F (16.5°C)
Adjust Menu (1 of 7)
The Adjust Menu items are the programmable settings
used to operate the mechanical equipment.
Continued on next page.
ADJUST MENU

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Item Field Range Access Description
50 to 100°F
(10.0 to 38.0°C)
LTD
USER
INST
ADV
SET COOL SECTION C
Select the cooling room 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.
Wake
Default = 78°F (25.5°C)
UnOccupied
Default = 85°F (29.5°C)
Occupied
Default = 70°F (21.0°C)
Sleep
Default = 85°F (29.5°C)
Away
Default = 85°F (29.5°C)
OFF, 40 to 122°F
(OFF, 4.5 to 50.0°C)
LTD
USER
INST
ADV
FLOOR MINIMUM SECTION F
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.
Wake
Default = 70°F (21.0°C)
UnOccupied
Default = OFF
Occupied
Default = 70°F (21.0°C)
Sleep
Default = OFF
40 to 122°F
(4.5 to 50.0°C)
Default = 85°F
(29.5°C)
ADV
FLOOR MAXIMUM SECTION F
Maximum floor temperature.
Note: This item is only available when Sensor 1 or
2 is set to Floor.
OFF, ROOM,
FLOR (Floor),
REM (Remote)
Default = OFF
INST
ADV
SENSOR 1 SECTION A
Select the type of sensor connected to auxiliary
sensor input 1.
OFF, ROOM,
FLOR (Floor),
OUT (Outdoor),
COIL, DUCT
Default = OFF
INST
ADV
SENSOR 2 SECTION A
Select the type of sensor connected to auxiliary
sensor input 2.
OFF, ON
Default = ON
INST
ADV
ROOM SENSOR SECTION A
Selects whether the built-in room sensor is functional.
Adjust Menu (2 of 7)
ADJUST MENU
Continued on next page.

© 2005 D545 - 06/05 8 of 40
Item Field Range Access Description
SYNC, AUTO
2 to 12
Default = AUTO
ADV
HEAT CYCLES PER HOUR SECTION D
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 Off.
CTRL, HRF1, HRF2,
COIL, CONV, RAD,
BASE, OTHR ,FURN
Default =CTRL
INST
ADV
HEAT 1 TERMINAL SECTION E
Select the type of heating terminal for first stage
heat.
Note: If CTRL is selected, the terminal unit selected
on the tN4 System Control is used.
OFF, ON
Default = ON
INST
ADV
HEAT 1 PUMP SECTION F
Select whether the system, primary, or mixing pump
on a tN4 System Control must operate while the first
stage 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.
OFF, ON
Default = OFF
INST
ADV
HEAT 1 DELAY SECTION F
Select whether the system, primary, or mixing pump
on a tN4 System Control is delayed to allow a first
stage heat 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.
NONE, CTRL, HRF1,
HRF2, COIL, CONV,
RAD, BASE, OTHR,
FURN
Default =CTRL
INST
ADV
HEAT 2 TERMINAL SECTION E
Select the type of heating terminal for second stage
heat. If NONE is selected, the second stage heat is
disabled.
Note: If CTRL is selected, the terminal unit selected
on the tN4 System Control is used.
NONE, BOIL,
MIX1, MIX4
Default = BOIL
ADV
HEAT 2 SOURCE SECTION F
Select the tN4 bus on which the second stage
heat zone operates. This setting determines water
temperature and system pump operation.
Note: This item is only available when the H2 Terminal
item is set to CTRL, HRF1, HRF2, Fan Coil, Convector,
Radiator, or Baseboard.
OFF, ON
Default = ON
INST
ADV
HEAT 2 PUMP SECTION F
Select whether the system, primary, or mixing pump
on a tN4 System Control must operate while the
second stage heat is operating.
Note: This item is only available when the H2 Terminal
item is set to CTRL, HRF1, HRF2, Fan Coil, Convector,
Radiator, or Baseboard.
Adjust Menu (3 of 7)
Continued on next page.
ADJUST MENU

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Item Field Range Access Description
OFF, ON
Default = OFF
INST
ADV
HEAT 2 DELAY SECTION F
Select whether the system, primary, or mixing pump
on a tN4 System Control is delayed to allow a second
stage heat 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 H2 Terminal
item is set to CTRL, HRF1, HRF2, Fan Coil, Convector,
Radiator, or Baseboard.
NONE, 1 to 16
Default = NONE ADV
COOL MASTER SECTION H
Select the cool group for which this thermostat is the
master. Select None if this thermostat is not a cool
group master.
Note: This item is only available when the thermostat
is connected to a tN4 network and the Cool Stage
is set to 1.
NONE, 1 to 16
Default = NONE ADV
COOL MEMBER SECTION H
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, Cool Master is set to
NONE and the Cool Stage is set to NONE.
NONE, 1
Default = 1
INST
ADV
COOL STAGES SECTION G
Select the number of cooling stages. Select None if
cooling is not used.
0:30 to 6:00 min
Default = 2:00 ADV
MINIMUM COOL RUN TIME SECTION G
Select the minimum running time for the cooling
equipment.
Note: This item is only available when the Cool Stage
is set to 1.
0:30 to 10:00 min
Default = 5:00 ADV
MINIMUM COOL OFF TIME SECTION G
Select the minimum off time for the cooling
equipment.
Note: This item is only available when the Cool Stage
is set to 1.
AUTO, 2 to 12
Default = AUTO ADV
COOL CYCLES PER HOUR SECTION D
Select the number of cooling cycles per hour.
Note: This item is only available when the Cool Stage
is set to 1.
10 to 180 min
Default = 30 ADV
INTERLOCK SECTION G
Select how long heating must be off before cooling
starts.
Note: This item is only available when the Cool Stage
is set to 1.
Adjust Menu (4 of 7)
Continued on next page.
ADJUST MENU

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Item Field Range Access Description
HEAT, COOL
Default = COOL ADV
PRIORITY HEATING OR COOLING SECTION G
Select whether heating has priority or cooling has
priority.
Note: This item is only available when the Cool Stage
is set to 1.
NONE, 1, 2
Default = 1
INST
ADV
FAN MODE SECTION I
Select the operation of the Fan 1 output.
OFF, ON
Default = OFF ADV
FAN 1 VENTILATION SECTION I
Select whether Fan 1 output operates to provide
ventilation.
Note: This item is only available when the Fan Mode
is set to None.
OFF, 1 to 60 min
Default = OFF ADV
VENTILATION PRE-VENT SECTION I
Select how long the ventilation operates continuously
prior to the Wake or Occupied events.
Note: This item is only available when the Fan Mode
is set to None and F1 Vent is set to On.
AUTO, OFF,
10% to 80%, ON
Default = AUTO
LTD
USER
INST
ADV
FAN OPERATION SECTION I
The minimum percentage of time the ventilation fan
operates during each event.
Auto operates with heat or cool.
On operates continuously.
% sets a minimum On time for each cycle.
Note: This item is only available when the Fan Mode
is set to 1 or F1 Vent is set to On.
Wake
UnOccupied
Occupied
Sleep
OFF, 70 to 180°F
(OFF, 21.0 to 82.0°C)
Default = 110°F
(43.0°C)
ADV
HEAT COIL MINIMUM SECTION I
Set the minimum coil temperature before turning on
the fan for heating. This allows the fan coil to heat up
and prevents the fan from blowing cold air.
Note: This item is only available when H1 or H2
Terminal is set to Coil, Sensor 2 is set to Coil and
Fan Mode is set to 2.
40 to 80°F, OFF
(4.5 to 26.5°C, OFF)
Default = OFF
ADV
COOL COIL MAXIMUM SECTION I
Set the maximum coil temperature before turning on
the fan for cooling. This allows the fan coil to cool off
and prevents the fan from blowing hot air.
Note: This item is only available when Cool Stage
is set to 1, Sensor 2 is set to Coil and Fan Mode is
set to 1 or 2.
Adjust Menu (5 of 7)
Continued on next page.
ADJUST MENU