- Data Brochure tekmarNet®4 Setpoint Control 161 1 Information Brochure Choose controls to match application 2 Application Brochure Design your mechanical applications 3 Rough In Wiring Rough-in wiring instructions 4 D 161 08/07 Introduction The Setpoint Control 161 is a single stage heat setpoint control that can operate on an On / Off differential or can operate on Pulse Width Modulation. The control includes special modes for hot tub, domestic hot water tank and radiant floor applications.
Table of Contents Table of Contents.............................. 2 Display and DIP Switches ................ 2 Dip Switches ................................. 2 Access Levels ............................... 3 Display .......................................... 3 Symbol Description ........................ 4 User Interface ............................... 4 Application Overview ........................ 5 On / Off Differential......................... 5 Pulse Width Modulation ................ 6 Display Menus ..
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 setpoint control on a regular basis.
Symbol Description MODE OF OPERATION Displays whether the device is in heating or off mode. LOCK The Access Levels are locked or a menu option is visible but not adjustable. RELAY 1 Displays when relay contact 1 is closed. OCCUPIED Displays when operating at the occupied temperature. WARNING An error is present. UNOCCUPIED Displays when operating at the unoccupied setback temperature. tN4 COMMUNICATION A tN4 network is detected.
Default Item To set the default item in the VIEW Menu, display item for more than five seconds. After navigating menus, the display reverts back to the default item after 60 seconds of button inactivity. Continue to next Item Continue to next Item Continue to next Menu Application Overview The Setpoint Control 161 is designed to support four different applications. The items shown in the VIEW and ADJUST Menu change depending on the Application Mode.
Mode 3 DHW Tank Heating Operation When heating, the setpoint control turns on Relay 1 when the temperature falls to 1/2 of the differential below the setpoint and turns off Relay 1 once the temperature reaches 1/2 of the differential above the setpoint.
of 32 © 2007 D 161 - 08/07 Item Field Continued on next page. 1 1 2 4 Mode VIEW Menu (1 of 3) Display Menus VIEW MENU -31 to 266°F (-35.0 to 130.0°C) 0:01 to 24:00 hr Range SEC LTD USEr InST ADV LTD USEr InST ADV Access SETPOINT SECTION A Displays the measured setpoint sensor temperature. Note: This item is only available when a programmable setback schedule or normally unoccupied has been selected.
D 161 - 08/07 SECTION D FLOOR Displays the measured floor temperature. SET SETPOINT Display the desired temperature. USEr InST ADV -31 to 266°F (-35.0 to 130.0°C) OFF, -4°F (-20.0°C) to Setpoint Maximum (variable) 1 8 of 36 Continued on next page. SECTION A Displays the measured domestic hot water tank temperature. 4 3 SEC LTD USEr InST ADV -31 to 266°F (-35.0 to 130.0°C) SECTION C SECTION B HOT TUB Displays the measured hot tub temperature.
of 32 © 2007 D 161 - 08/07 Item Field -31 to 266°F (-35.0 to 130.0°C) OFF, -4°F (-20.0°C) to Floor Maximum (variable) InST ADV USEr InST ADV USEr InST ADV USEr InST ADV OFF, -4°F (-20.0°C) to Hot Tub Maximum (variable) OFF, -4°F (-20.0°C) to DHW Maximum (variable) Access Range Description SECTION D SECTION C SECTION B SUPPLY TEMP OF tN4 BUS SECTION L Actual water temperature of the tN4 bus for heating.
D 161 - 08/07 10 of 36 1 Continued on next page. LTD USEr InST ADV OFF, -4°F (-20°C) to Setpoint Maximum Default = 160°F (71.0°C) InST ADV Access USEr InST ADV 1, 2, 3, 4 Default = 1 Range HEAT, OFF Default = HEAT Item Field 2 1 2 3 4 Mode ADJUST Menu (1 of 5) ADJUST MENU © 2007 Setpoint Hot Tub DHW Tank Floor Note: In the Limited Access Level, the temperature can only be adjusted by +/-3°F (1.5°C) from the temperature setting entered prior to entering the Limited access level.
of 32 © 2007 D 161 - 08/07 LTD USEr InST ADV LTD USEr InST ADV LTD USEr InST ADV ADV OFF, 40°F (4.5°C) to Hot Tub Maximum Default = 102°F (39.0°C) OFF, 40°F (4.5°C) to DHW Maximum Default = 130°F (54.5°C) OFF, 40°F (4.5°C) to Floor Maximum Default = 80°F (26.5°C) 50 to 239°F (10.0 to 115.0°C) Default = 200°F (93.5°C) 3 4 1 Continued on next page.
ADV ADV ADV InST ADV 50 to 104°F (10.0 to 40.0°C) Default = 104°F (40.0°C) 50 to 200°F (10 to 93.5°C) Default = 140°F (60.0°C) 50 to 110°F (10.0 to 43.5°C) Default = 85°F (29.5°C) 1 to 40°F (0.5 to 22.0°C) Default = 10°F (5.5°C) 3 4 1 2 3 D 161 - 08/07 12 of 36 Continued on next page. 2 Access Item Field Range Mode ADJUST Menu (3 of 5) ADJUST MENU © 2007 DIFFERENTIAL Select the differential to cycle on and off around the setpoint temperature.
of 32 © 2007 D 161 - 08/07 Continued on next page. On, OFF Default = OFF 1 2 3 4 HYDr, OTHr Default = HYDr Range 60 to 220°F (15.5 to 104.5°C) Default = 180°F (82.0°C) Item Field 1 2 3 4 1 2 3 4 Mode ADJUST Menu (4 of 5) ADJUST MENU InST ADV InST ADV InST ADV Access PRIORITY SECTION L Select if the setpoint control has priority over the heating system.
D 161 - 08/07 14 of 36 ADV InST ADV Access Description Note: This item is only available when the setpoint control has tN4 communication. SETPOINT DEVICE ENABLE SECTION E Select the Setpoint Device Enable number to allow a remote device such as a User Switch to activate the Time Occupied override. The control then maintains the occupied temperature for a preset amount of time.
of 32 © 2007 D 161 - 08/07 OFF, On Default = OFF OFF, 0:05 to 24:00 hr, On (in 5 min. increments) Default = 1:00 Range InST ADV LTD USEr InST ADV Access Description The SCENE Menu items set the current scene as well as the scene settings. SCENE MENU SECTION H Select whether or not to use the scene feature on the setpoint control. Note: This item is only available in Application Mode 2 (Hot Tub) or 4 (Floor) if a programmable setback schedule is selected.
D 161 - 08/07 16 of 36 Access InST ADV Range NONE, Mbr1, Mbr2, Mbr3, Mbr4, UnOc Default = NONE Description The SCHEDULE menu allows the setpoint control to follow a schedule. Note: This item can be viewed in the USEr and InST (Installer) access levels but can only be adjusted in the ADV (Advanced) access level. UnOc is not available in Mode 3. If a schedule is not required, select NONE. If the schedule is set on another thermostat or setpoint control, select Mbr1 to Mbr4.
of 32 © 2007 D 161 - 08/07 Continued on next page. Item Field °F, °C Default = °F BACKLIGHT SECTION K Select whether the backlight displays permanently, temporarily, or is off. The temporary backlight lasts for 30 seconds. UNITS SECTION J Select Fahrenheit or Celsius as the temperature units. USEr InST ADV SEC, LTD, USEr, InST, ADV Default = USEr InST ADV ACCESS LEVEL The access level of the setpoint control. The access column shows which items are visible in each access level.
D 161 - 08/07 18 of 36 TYPE Product number of this setpoint control. Hold the Up button to view the software version. InST ADV SEC LTD USEr InST ADV 161, Software Version RESTORE DEFAULTS Press the Up and Down buttons together to load the factory defaults. The SELECT icon appears and then the display shows DONE when the factory defaults have been completed.
Sequence of Operation Application Mode 1 - On / Off Setpoint SECTION A Application Mode 1 is a generic setpoint control operation using an on/off differential for heating. The sensor is required to be located at the temperature control point. The setpoint control can have an occupied temperature setting. The setpoint load is not heated during the unoccupied or away periods. Load Relay 1 Operation Relay 1 operates using an on/off differential to maintain the load at the Occupied temperature.
Mode of Operation The hot tub mode of operation can be set to either Heat or Off. While set to Off, Relay 1 remains off. The Off setting should only be used when the hot tub is drained or when there is no possibility of freezing. Power should never be removed from the setpoint control as this will result in an error message on the tN4 system. Occupied Time The setpoint control can temporarily override the scheduled temperature and operate at the occupied temperature on a timer.
Application Mode 4 - Floor SECTION D Application Mode 4 configures the setpoint control for floor warming and floor heating applications using pulse width modulation. Floor warming is not necessarily designed to heat the room, but to make the floor feel warm to the touch. This is common especially in bathrooms. A sensor must be located within the slab between the heating pipes. The setpoint control allows a Floor temperature to be set for the occupied period.
Remote Enable / Disable SECTION E To use the Remote Enable / Disable feature, the setpoint control must be set to Mode 1 (Setpoint), 2 (Hot Tub), or 4 (Floor). When the setpoint control is connected to a tN4 system, a User Switch or tN4 Gateway can remotely signal a setpoint control (or multiple setpoint controls) to override the unoccupied temperature to temporarily operate at the occupied temperature.
Sensor Input SECTION F The Setpoint Control 161 requires a temperature sensor (Universal Sensor 071 included) to be connected to the sensor input on the back of the control. All tekmar sensors are compatible. Choose the sensor type that best meets the requirements of the application. See application mode diagrams for the recommended location of the sensor. Setting the Schedule SECTION G To provide greater energy savings, the setpoint control can follow a schedule master when connected to a tN4 system.
Scenes SECTION H Scenes are a system override feature available when the setpoint control is part of a tN4 system. Scenes allow the user to change the entire tN4 system to operate at preset temperatures. To use the scene function, go to the Scene menu and set the Scene setting to On. The tN4 scene can be changed through the scene menu on a tN4 thermostat, a tN4 User Switch or through a tN4 Gateway.
Restore Factory Defaults SECTION I To restore the factory defaults, locate the Default item in the Miscellaneous menu and press and hold the Up and Down buttons for 1 second. The display will show “SELECT” and when completed it will show “DONE”. Temperature Units SECTION J The setpoint control can display temperatures in either Fahrenheit (°F) or in Celsius (°C). • Locate the units setting in the Miscellaneous menu.
Relay 1 System Pump In order to accommodate many different piping and pumping configurations, the setpoint control is able to choose whether a “system” pump is required to operate at the same time as Relay 1. This allows each manifold on a water temperature to have a “system” pump when using zone valves or when using zone pumps together with primary secondary piping. Only the manifold that has zones requiring heat should have their “system” pump turned on.
When the setpoint control is connected to a tN4 boiler bus, the address range is b:01 through to b:24. When the setpoint control is connected to the tN4 mix 1 bus, the address range is 1:01 through to 1:24. When the setpoint control is connected to the tN4 mix 2 bus, the address range is 2:01 through to 2:24. When the setpoint control is connected to the tN4 mix 3 bus, the address range is 3:01 through to 3:24. The address number determines the heating priority for each zone.
Error Messages Local Errors and Device Errors Error messages are used to indicate a problem somewhere in the system. There are two types of error messages: Local Errors and Device Errors. A Local Error indicates an error specific to a device. For example, a thermostat with a sensor short circuit will show a Sensor Short Error on its display. No other devices will show this specific error (unless they also have a sensor short circuit).
If the error message is a Device Error (if “DEV” or “DEV ERR” is shown on screen), read the address shown and go to the device with that address. That device will have a Local Error indicating specifically what the problem is. When the problem is corrected, the error message will automatically clear. Access Levels In some cases, it is not desirable to let day-to-day users view error messages.
© 2007 D 161 - 08/07 30 of 36 Error Message MISCELLANEOUS ERROR The setpoint control failed to read the MISCELLANEOUS menu settings from memory and has reloaded the factory default settings. The setpoint control continues to operate while displaying this error. Note: To clear the error, the access level must be set to Advanced before checking all settings in the MISCELLANEOUS menu.
of 32 © 2007 D 161 - 08/07 Error Message DEVICE LIMIT There are more than 24 devices on the tN4 bus. The additional devices must be removed and reconnected to a different tN4 bus if possible. ADDRESS ERROR Two tN4 devices have been manually set to the same address. The setpoint control continues to operate with this error but does not communicate with the tN4 bus. To clear this error, manually select an unused address. This can be done automatically by setting the Address item to Auto.
© 2007 D 161 - 08/07 32 of 36 Error Message SCHEDULE MEMBER ERROR The setpoint control can no longer detect its schedule master. Ensure that the Schedule Master number has not been changed. Check the communication connections for open or short circuits. Once the schedule master has been detected, the error message clears. SETPOINT SENSOR OPEN CIRCUIT Due to an open circuit, the setpoint control failed to read the sensor input.
of 32 © 2007 D 161 - 08/07 Error Message Possible Addresses: 01 to 24 - Device Error on Thermostat only network b:01 to b:24 - Device Error on Boiler Bus 1:01 to 1:24 - Device Error on Bus 1 2:01 to 2:24 - Device Error on Bus 2 3:01 to 3:24 - Device Error on Bus 3 CTRL - Device Error on System Control MIX1 - Device Error on Mixing Expansion Module (See System Control for local error) MIX2 - Device Error on Mixing Expansion Module (See System Control for local error) MIX3 - Device Error on Mixing Expa
Cleaning the Control The control’s exterior can be cleaned using a damp cloth. Moisten the cloth with water and wring out prior to wiping the control. Do not use solvents or cleaning solutions.
Notes 35 of 32 © 2007 D 161 - 08/07
Limited Warranty and Product Return Procedure Limited Warranty The liability of tekmar under this warranty is limited. The Purchaser, by taking receipt of any tekmar product (“Product”), acknowledges the terms of the Limited Warranty in effect at the time of such Product sale and acknowledges that it has read and understands same.
